VIA-170 Operating Instructions

VIA-170 Operating Instructions
Operating
Instructions
VIA-170
R
®
Video Image MarkerMeasurement System
Accuracy by Design
P/N 700051
ii
VIA-170
®
Video Image Marker-Measurement System
User's Manual
R
iii
Copyright
© 1994-1998 by Boeckeler Instruments, Inc.,
4640 South Butterfield Drive, Tucson, Arizona, U.S.A.
85714; (520) 745-0001.
Boeckeler® and VIA-® are registered trademarks of Boeckeler
Instruments, Inc., Tucson, Arizona. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or
translated into any language in any form by any means without the
expressed written permission of Boeckeler Instruments, Inc.
Printed in the USA • P/N 700051 12/98
iv
CONTENTS
LIST OF FIGURES ................................................. vi
INTRODUCTION .............................................. 3
FEATURES ....................................................... 5
Video Image Marker ................................... 5
Video Measurement .................................... 6
ADDITIONAL FEATURES ................................ 8
COMPONENTS ................................................ 9
Keyboard Controller .................................... 9
OPTIONAL COMPONENTS ........................... 12
Light Pen Controller .................................. 12
Knob Controller ......................................... 14
Joystick Controller .................................... 16
Mouse/Mouse Pen Controller ................... 18
Other Mouse Controllers ........................... 19
THE MEASUREMENT MODE ........................ 54
USING THE MEASUREMENT KEYS ............. 56
General Measuring Procedures ................ 57
Measurement Keys ................................... 58
USING THE ACTION KEYS IN MEASURING 61
CALIBRATION ................................................ 70
General Calibration Procedures ............... 71
MEASURING .................................................. 78
Basic Operation ........................................ 78
X-Axis Measurement ................................ 79
Y-Axis Measurement ................................ 81
X and Y Measurement .............................. 84
Point-to-Point Measurement ..................... 87
Angle Measurement .................................. 89
Circle Measurement .................................. 95
Count Measurement ................................. 98
Area/Chords Measurement ..................... 101
Timers ..................................................... 107
Section Two:
Installation ........................................................... 21
Section Five:
Communication ................................................. 111
INSTALLATION .............................................. 23
Composite Systems .................................. 23
RGB Systems ........................................... 26
Y/C Systems ............................................. 27
INSTALLATION FOR OPTIONAL LIGHT
PEN EXTENSION ........................................... 29
USE OF THE RS-232 PORT ........................ 113
Basic Operation ...................................... 113
Set Up ..................................................... 114
Transmitting Data ................................... 115
Program to Test Port .............................. 116
RS-232 Connector Pin Out ..................... 117
Using a Video Printer .............................. 118
Section Three:
Video Marking ...................................................... 31
Section Six:
Appendices ....................................................... 119
OVERVIEW .................................................... 33
USING THE MARKER KEYS .......................... 34
General Marking Procedure ...................... 35
Marker Keys .............................................. 36
USING THE ACTION KEYS IN MARKING ..... 46
TROUBLESHOOTING GUIDE ...................... 121
WARNING MESSAGES ............................... 123
GLOSSARY .................................................. 125
ABOUT BOECKELER INSTRUMENTS ........ 130
INDEX ......................................................... 131
Section One:
Getting Started ...................................................... 1
Section Four:
Video Measuring.................................................. 51
OVERVIEW .................................................... 53
v
LIST OF FIGURES
Figure 1.1
VIA-170 Keyboard Controller ............................ 9
Figure 1.2
LP-32 Light Pen Controller ............................. 12
Figure 1.3
KS-30 Knob Controller .................................... 14
Figure 1.4
JS-40 Joystick Controller ................................ 16
Figure 1.5
MP-30 Mouse Pen Controller ......................... 18
Figure 2.1
Back Panel of VIA-170 (for composite video
systems) ......................................................... 23
Figure 2.2
VIA-170 Sample Copyright Message .............. 25
Figure 2.3
Back Panel of VIA-170 (for RGB, Y/C) ........... 26
Figure 2.4
RGB Interface and Y/C Interface .................... 27
Figure 2.5
Sample Copyright Message ............................ 28
Figure 2.6
Configuration for the LPX Light Pen Ext. ........ 29
Figure 3.1
A combination of VIA-170 graphics. ............... 33
Figure 3.2
VIA-170 Keyboard Controller .......................... 34
Figure 3.3
Creating a Custom Ruler or Reticle ................ 37
Figure 3.4
Light Pen Calibration Menu ............................ 42
Figure 3.5
Set Color Palette Menu ................................... 44
Figure 3.6
Set Menu Colors Menu ................................... 44
Figure 4.1
The XY Measurement Mode, Statistics
Mode Active .................................................... 55
Figure 4.2
VIA-170 Keyboard Controller .......................... 56
Figure 4.3
The Statistics Table ........................................ 69
Figure 4.4
First Calibration Menu ..................................... 71
vi
Figure 4.5
Second Calibration Menu ............................... 72
Figure 4.6
Third Calibration Menu ................................... 73
Figure 4.7
Calibration: X-axis Line Placement ................. 76
Figure 4.8
Calibration: Y-axis Line Placement ................. 77
Figure 4.9
X Measurement Mode .................................... 79
Figure 4.10
Positioning the X-Axis Measuring Lines ......... 80
Figure 4.11
Y Measurement Mode .................................... 82
Figure 4.12
Positioning the Y-axis Measurement Lines ..... 83
Figure 4.13
XY Measurement Mode .................................. 84
Figure 4.14
Positioning the X and Y Measurement Lines .. 85
Figure 4.15
P-P Measurement Mode ................................. 87
Figure 4.16
Positioning the Point-to-Point Cursors ............ 88
Figure 4.17
ANGLE Mode .................................................. 90
Figure 4.18
ANGLE Mode, Placing the First Leg ............... 91
Figure 4.19
ANGLE Mode, Placing the Second Leg .......... 92
Figure 4.20
Measuring Other Angles When One
Angle is Known ............................................... 93
Figure 4.21
Measuring an Angle Using Three Points ........ 94
Figure 4.22
CIRCLE Measurement Mode .......................... 95
Figure 4.23
CIRCLE Mode: Anchoring the Third Point ...... 96
Figure 4.24
Count Mode .................................................... 98
Figure 4.25
Counting Objects, Group A ............................. 99
Figure 4.26
Combination of Tags ..................................... 100
Figure 4.27
Drawing Perimeter of Area ........................... 101
Figure 4.28
Area Measurement Option ............................ 102
Figure 4.29
Calculating the Area ..................................... 103
Figure 4.30
Chord Measurement Option ......................... 104
Figure 4.31
Measuring the D1 Chord ............................... 105
Figure 4.32
Measuring the D2 Chord ............................... 106
Figure 4.33
Timer w/ XY Measurement ........................... 107
Figure 4.34
Timer w/ Markers Mode ................................ 108
Figure 5.1
RS-232 Setup Menu ..................................... 114
vii
Section One:
Getting Started
2 - Getting Started
Boeckeler VIA-170
INTRODUCTION
The VIA-® 170 video image marker-measurement system, created by Boeckeler
Instruments, Inc., combines the features of a video micrometer and cell/particle counter
with the capabilities of a video marker and video typewriter. Connected between a video
source and monitor, the VIA-170 generates an overlay on a live or stored video image. On
this overlay, graphics and measuring lines may be positioned to annotate or measure
various aspects of the image while it is displayed on the monitor -- and without altering that
image. The two primary functions of this overlay are for marking and measuring. These two
functions represent the two modes in the VIA-170: the Marker Mode and the Measurement Mode.
When any of the marker keys are pressed, operators automatically enter the Marker Mode.
Using these keys, operators can position and store a simple or complex combination of
graphics called markers on a single overlay. Such markers are used to quickly annotate,
frame and label the video image for storage retrieval or still frame printout. If desired, the
VIA-170 overlay may be turned off and the video camera image alone will be displayed on
the monitor. Up to ten different marker overlays may be stored, with quick availability upon
powering up. In addition, each overlay may be repositioned so that users can align markers
with important features of the video image for comparison purposes or for quick go / no go
inspections. A security feature allows the creation of an overlay of markers that cannot be
erased unless a password is used. All users can add, delete and save markers on top of
the protected markers, but they cannot erase protected markers without a password.
The marking tools available in the VIA-170 include typed text and numbers, 10 different
pointers (e.g., arrows, cross hairs), custom scales and grids, sizeable circles and boxes for
framing, crosslines which may be automatically centered, and a lines mode offering a
selection of line thicknesses. Also, with the touch of a key, operators can display the
current date, time or both. Freehand drawing is available with an optional light pen controller. As easily as the markers are created, so are they easily erased -- either one at a time
until the screen is clear, or all at once. Users may also undelete their most previous erase
or clear function.
By pressing a measurement key, operators automatically enter one of ten different
Measurement Modes. By using this key, operators may directly measure the objects on a
monitor which are generated by a video source (such as a camera or VCR). The VIA-170
measuring tools include the ability to enter and store up to ten different calibrations in any
scale, from microns to miles. Measuring lines may be displayed as solid or broken to
differentiate these lines from markers or from the image being measured. The 10 different
Measurement Modes assist users in measuring the monitor image horizontally (X), vertically (Y), both horizontally and vertically (XY) or diagonally (point-to-point). Users may also
measure angles and circles (circumference and radius), as well as measure the area and
chords of an object. A cell/particle counting mode and elapsed time measurement are also
available at the touch of a key. The security feature allows protection of all calibrations, so
that once calibrations have been made, they cannot be changed without a password,
although all users will be able to change from one protected calibration to another.
Boeckeler VIA-170
Getting Started - 3
Once in a Measurement Mode, users may select whether to measure with or without the
ability to enter measurements into a Statistics Table. This table can contain up to 500
measurement values and display calculations for the count, mean, high value, low value,
and standard deviation. Statistics and measurements can be output as ASCII data via an
RS-232 serial port for use with computers or printers.
While measuring or marking, users are aided with the availability of on screen help. A brief
demonstration of features is also offered, should a quick overview of the VIA-170 be
needed in training other users.
Standard components of the VIA-170 include a keyboard controller. Optional features
include an LP-32 light pen which adds freehand drawing and path length features to the
VIA-170. Also available is the KS-30 knob controller or JS-40 joystick controller, both
ergonomically designed for ease in fine measuring. The VIA-170 is also compatible with
MSTM and Microsoft TM mouse devices.
The VIA-170 is compatible with most common video standards, including monochrome RS170 and color NTSC composite cameras, monitors, recorders, video presentation products
and other NTSC video equipments. Boeckeler video interfaces may be purchased to create
brightly colored marker overlays for use with Y/C (S-Video) or RGB video equipment. An
export model of the VIA-170 is compatible with European CCIR and PAL video standards.
4 - Getting Started
Boeckeler VIA-170
FEATURES
VIDEO IMAGE MARKER
•Ten marking tools (in keyboard order):
Boeckeler VIA-170
1. Typed Text
Label video images for video print, still image recorder or projection
display. Useful in record keeping, presentations, video conferences, meetings and more. Upper and lower case characters are
available and positionable anywhere on screen.
2. Pointers
10 different pointers can assist in marking a video image to point
out important aspects of the image under study. Pointers include
four different arrows, standard cross hairs, pointed cross hairs, a
target circle, a small circle, a target box and a small box. Each are
positionable anywhere on screen.
3. Grids
Custom grids may be created in horizontal, vertical or box patterns
(horizontal and vertical).
4. Scales
Size and position scales to create reticles for dimensional measurements or subdivide scales with cross hairs for fine measurements. Sizeable horizontal and vertical scales available.
5. Circles
Sizeable circles and ellipses may be placed anywhere on screen.
6. Boxes
Sizeable boxes or rectangles may be placed anywhere on screen.
7. Crosslines
Crosslines can be automatically centered and fixed, or custom
designed. Horizontal and vertical lines can be displayed in a
variety of line patterns, including scaled, dotted, dashed and solid.
Intersections can be displayed open or closed.
8. Lines
Horizontal, vertical or diagonal lines may be positioned in one of
three different line thickness selections.
9. Date/Time
Set the date and time, then place the label anywhere on the
screen. The date/time label will remain active even after the
VIA-170 is powered down.
10. Draw
With the optional LP-32 light pen or other mouse controller, users
can draw or write over the video image. Autointercept option allows
users to easily close a drawing before measuring the area of that
drawing.
Getting Started - 5
• Align Mode allows users to position markers in unison over important aspects of the
video image. Marker alignment assists in quickly comparing features of objects being
inspected or studied.
• On screen display of marker width and height or length as users size the box, circle,
scale, grid, or crossline markers. Display of path length is shown while creating straight
lines. With optional drawing devices, path length can be displayed as freehand lines are
drawn.
• On screen display of marker position.
• Battery backed up memory allows many different markers to be combined and stored in
ten different overlays, each of which can be recalled even after the unit has been powered down.
• Easy adjustment of gray level or color of markers for optimal contrast with the video
image (color markers will be displayed only if an optional VIA-RGB or VIA-Y/C interface
is being used).
• Hide or show stored markers with the touch of a key to instantly view the video image
alone or with the markers.
• Erase markers from the overlay all at once or one at a time. An Undelete option allows
users to undo their most recent erase or clear.
• Protect marker overlays when desired, so that certain markers cannot be erased unless
a password is entered. Other users may add markers to the protected overlay, and these
added markers can be erased, but the protected markers cannot be erased.
VIDEO MEASUREMENT
• Separate X-axis and Y-axis calibration ensures accuracy of all measurements.
• Ten calibrations may be set up and stored for multiple measurements. Each set up is
labelled and accessible from the working screen.
• Nonvolatile memory stores and recalls all calibrations even after the unit has been
powered down.
• Protect calibrations when desired, so that once calibrations have been set, they cannot
be altered without entering a password. Operators can change from one protected
calibration to another.
• 10 Measurement Modes:
6 - Getting Started
1. Horizontal, X
Operators move two vertical lines to each edge of an
object. The measurement is continuously displayed on screen.
2. Vertical, Y
Operators move two horizontal lines to the top and bottom
edge of an object. The measurement is continuously displayed
on screen.
3. 2-dimensional, X-Y
Operators position two horizontal and two vertical lines at the
edges of an object. X and Y measurements are continuously
displayed on screen.
Boeckeler VIA-170
4. Point-to-Point, P-P
Operators place two cross hairs at points to be measured on
the object. The distance between the two points is continuously
displayed on the screen.
5. Angles
Operators place two or more points to define each leg of an
angle. The degree of the angle formed by the legs is displayed
on the screen, whether or not the vertex of the angle is
apparent. Users can turn on or off a graphic display of the
angle as it is being measured.
6. Circles
Operators place three or more points along the perimeter of a
circular image. The radius and circumference of the circle are
displayed on the screen, even when only part of the circle is in
the field of view. Users can turn on or off a graphic display of
the circle as it is being measured.
7. Count
Operators position a tag and drop it over each cell or particle to
be counted. Hundreds of particles may be counted, and each
may be tagged with one of 10 letters (A-J), which prevents
accidental recounting and allows operators to count up to 10
different types of particles visible in a field of view.
8. Area
Operators fill a closed graphic (or freehand drawing with an
optional light pen or mouse device). The area of the closed
shape is instantly calculated and continuously displayed on
screen with the image.
9. Chord
Operators place cursors on the extreme points of the object's
perimeter to obtain the long chord, and at narrow points of the
perimeter to obtain the short chord. The two distances are
displayed on screen continuously along with the area.
10. Timer
A timer may be started and stopped to measure an event
which takes place on the screen, either in the Marker Mode or
in one of the four linear measurement modes ( X, Y, XY, and
Point-to-Point). Time is continuously displayed to the
hundredths of a second and may be used to track a single
event up to 99 hours.
• Statistics Mode in which displayed measurements can be entered into a Statistics
Table. Up to 500 measurements can be stored in the table, which also displays the
current count, mean, standard deviation, low value, high value and range. Statistical
calculations change as each new measurement is added or deleted in the table.
• RS-232 data output transmits ASCII measurement data and statistics to printers or
computers.
• The ability to change the gray level or color of measuring lines for optimum contrast
with the video image.
• The ability to view the camera image alone without a measurement overlay. Operators
may also choose between viewing the image with measuring lines only or with measuring
lines and markers.
• The ability to select solid or dashed measuring lines to aid in differentiating measuring
lines from the camera image or from the markers.
Boeckeler VIA-170
Getting Started - 7
ADDITIONAL FEATURES
• On screen Help can be accessed at any time during measuring or marking.
• A Demonstration of Features can be activated to briefly show the various measuring
and marking functions of the VIA-170 should a quick overview be needed in training other
users.
8 - Getting Started
Boeckeler VIA-170
COMPONENTS
KEYBOARD CONTROLLER
The keyboard is the user's primary interface with the VIA-170. Figure 1.1 below depicts the
VIA-170 keyboard controller. In general, the keyboard is used to select, type, position, save
and erase the markers on the video overlay. The keyboard is also used to calibrate and
measure as well as guide the user through menu selections. A few of these functions may
also be controlled with a separately purchased light pen, joystick or knob controller, mouse
pen or other mouse controllers (refer to "Optional Components" on page 12). General
definitions of each function key on the keyboard follow.
MARKER KEYS
(Graphics)
MEASUREMENT KEYS
MARKER KEYS
(Text/Numbers)
ACTION KEYS
Figure 1.1
VIA-170 Keyboard Controller
Keyboard Controller Definitions
MARKER KEYS
(Graphics)
Boeckeler VIA-170
These keys allow operators to select the graphics or markers
desired and the appearance of those markers. Such keys include
POINTERS [F1], SCALES/GRIDS [F2], SHAPES [F3],
CROSSLINES [F4], LINES [F5], DRAW [F6], SHOW DATE/TIME
[F7] and CHANGE COLOR [F8]. Auxiliary functions which support
these keys are activated by pressing CTRL + a marker key. Auxiliary marker keys are those for SHOW MARKER SIZE/COORDS,
SIZE OBJECTS/TEXT, ALIGN, CALIBRATE LIGHT PEN, SET
DATE/TIME and SET COLOR & BRIGHTNESS.
Getting Started - 9
MARKER KEYS
(Text/Numbers)
Text and number keys on the VIA-170 keyboard controller perform
as alphanumeric labels or markers which are immediately typed on
the screen when pressed. Upper and lower case characters are
available. Each line of type may be freely positioned on the overlay
until selected or anchored.
MEASUREMENT
KEYS
As the name suggests, measurement keys activate the measuring
capabilities of the VIA-170, so that vertical, horizontal, point-to-point,
angle or circle measurement, count, area, chords, and elapsed time
measurements may take place on any video image with or without a
selected marker overlay. Such keys include XY MEASURE [F9];
ANGLES/CIRCLES [F10]; COUNT [F11]; AREA/CHORDS [F12].
Auxiliary functions which support these keys are activated by pressing CTRL (or ALT) + a measurement key. Auxiliary measurement
keys are those for CHANGE LINE PATTERN, CLEAR POINTS,
TIMER W/XY MEASUREMENT, TIMER w/MARKERS, MEASURE
W/STATISTICS.
ACTION KEYS
Action keys perform an action with regard to marking or measuring,
such as moving to the next or previous overlay, erasing a marker,
positioning and anchoring a marker or positioning cursors and
measurement lines. These keys include ALL GRAPHICS ON/OFF
[Esc], RS-232C TRANSMIT [Print Screen], SELECT CALIBRATION # [Scroll Lock], HELP [Pause/Break], the ENTER key,
ENTER STATISTICS [Insert], OVERLAY [Home], PREV OVERLAY
[Page Up], UNDO [Delete], CLEAR [End], NEXT OVERLAY [Page
Down], CTRL, and the four POSITIONING keys (left, right, up and
down).
Auxiliary functions which support these keys are activated by pressing CTRL, ALT or SHIFT + an action key. Auxiliary action keys are
those for SECURITY MENU, SET RS232, CALIBRATE, DEMO OF
FEATURES, AUTOINTERCEPT WHILE DRAWING, CLEAR OFFSET CREATED IN ALIGN MODE, CLEAR STATISTICS TABLE,
POSITION/SIZE in FINER INCREMENTS, REVERSE TOGGLE,
SHOW/HIDE ANGLE WHILE MEASURING, SHOW/HIDE CIRCLE
WHILE MEASURING, STATISTICS TABLE, UNDELETE.
Positioning Markers
When operating the VIA-170 with the keyboard controller, the active markers may be
positioned vertically by pressing the up and down POSITIONING keys. Pressing the right
and left POSITIONING keys moves the marker horizontally. Once the marker is positioned,
operators may anchor and store the marker in the overlay by pressing the ENTER key.
POSITIONING keys are not only used for positioning markers, but also for sizing the active
markers before they are anchored. For sizing instructions refer to instructions on page 39.
10 - Getting Started
Boeckeler VIA-170
Positioning Measuring Lines or Cursors
When operating the VIA-170 with the keyboard controller, measuring lines and cursors may
be moved anywhere on the screen by pressing the POSITIONING keys which direct right,
left, up and down movement. These keys are located to the right of the ENTER key. For
fine movement, press the CTRL key along with one of the positioning keys.
While measuring, the POSITIONING keys are used to position measuring lines or measurement cursors. Left and right keys move vertical lines left and right. Up and down keys
move horizontal lines up and down. When measuring, only the top and/or left lines will be
active. To activate the right and bottom lines, press ENTER. When measuring angles,
pressing the SPACE BAR will begin definition of either the first or second leg of the angle.
Moving through Menus
When users are presented with menus, they may move through the options and entry
blanks by pressing any of the appropriate POSITIONING keys. In some cases, users will
be asked to toggle through options by pressing the SPACE BAR. Pressing ENTER selects
the displayed option.
Boeckeler VIA-170
Getting Started - 11
OPTIONAL COMPONENTS
LIGHT PEN CONTROLLER
Figure 1.2 below depicts the LP-32 Light Pen Controller. The controller functions as an
auxiliary interface with the VIA-170. In general, the pen is used like a writing utensil, and is
pressed against the screen to position markers or to freehand draw or write directly on the
monitor. Broad definitions of the light pen button functions are listed below. Refer to this
section, if needed, when general instructions later in the manual ask users to anchor a
marker, to position a cursor or to draw.
Figure 1.2
LP-32 Light Pen Controller
TIP BUTTON
a button which positions active markers, measurement lines and
measurement cursors when lightly dragged across the screen. Also
draws on the screen when the DRAW [F6] key is activated and the
pen tip is pressed into the screen while drawing. Quickly clicking the
Tip Button into the screen anchors active markers or measurement
cursors. In the Area/Chords Mode, clicking the pen tip in the data
line activates measurement in the Area or Chords Mode. The light
pen is not active in making menu selections.
BARREL BUTTON
zeroes out the display of path length while users are freehand
drawing.
12 - Getting Started
Boeckeler VIA-170
Positioning and Sizing Markers
When operating the VIA-170 with the light pen controller, the active marker may be moved
anywhere on the screen by lightly dragging the light pen across the screen. The marker will
follow this movement at a specified offset. For example, "dragging" the pen to the left on
the screen will correspondingly move the marker to the left on the screen, one inch away
from the pen tip if the offset was calibrated at one inch (calibration instructions follow).
Pressing the pen into the screen will anchor an active graphic. Dragging the pen tip across
the screen also serves to quickly size a marker if users have activated the sizing mode by
pressing the SIZE OBJECTS/TEXT (CTRL + SHAPES [F3]). If precise sizing is desired,
operators should use the keyboard POSITIONING keys instead of the light pen.
Drawing is accomplished similarly to positioning markers, except instead of dragging the
pen tip across the screen, users will press the Tip Button into the screen and draw. Again,
the drawing line will be offset from the pen tip in accordance to how the pen was calibrated.
To Calibrate the Light Pen:
1. Press the CTRL key together with the DRAW [F6] key until the light pen calibration
screen appears displaying a calibration menu.
A cross hairs cursor will appear on the screen along with menu instructions.
2. Press any function key to exit calibration at this point, without making changes.
3. If the user wishes to continue calibration, press the Tip Button directly on the cursor for
no offset margin. Or press the Tip Button at a desired distance from the cursor to create
an offset margin.
The offset margin is now automatically stored and the offset mode has been exited.
Positioning Measuring Lines or Cursors
When operating the VIA-170 with the light pen controller, the measuring lines or cursors
may be moved anywhere on the screen by lightly dragging the light pen across the screen.
The marker, measuring line or cursor will follow this movement at a specified offset. For
example, "dragging" the pen to the left on the screen will correspondingly move the measuring line or cursor to the left on the screen, one inch away from the pen tip if the offset
was calibrated at one inch (for calibration instructions follow the procedure above).
While measuring, the light pen may be used to quickly position measuring lines cursors.
When first measuring, only the top and/or left lines will be active. To activate the right and
bottom lines, press ENTER on the keyboard, then continue with the light pen.
NOTE: The measuring lines may shift as the pen approaches the screen. For this
reason, Boeckeler recommends that light pens be used for positioning markers
rather than for positioning measuring lines.
Moving through Menus
Except for activating one of three measuring modes in the Area/Chords Data Line, or
changing the count tag in the Count Data Line, the light pen has no effect in menu selections. Use the keyboard POSITIONING keys to maneuver within menus.
Boeckeler VIA-170
Getting Started - 13
KNOB CONTROLLER
Although the VIA-170 operates primarily with the standard keyboard controller, for fine
measurement and positioning the KS-30 Knob Controller is recommended (refer to Figure
1.3). The knob controller operates simultaneously with the keyboard controller and can
operate simultaneously with optional light pen. In general, the knobs are used to quickly
size and move the markers or quickly position measuring lines or measurement cursors on
the VIA-170 overlay. Broad definitions of the five keys on the knob controller are listed
below. Refer to this section, if needed, when general instructions later in the manual ask
users to position measuring lines or size and anchor a marker.
Figure 1.3
KS-30 Knob Controller
Knob Controller Key Definitions
AXIS
a switch which specifies the axis or point which the knobs currently
control.
SELECT
a button which anchors the active marker in its current position.
DATA
zeroes out path length (distance display) while drawing with light
pen or mouse. In Measuring w/Statistics Mode, enters displayed
measurement into the Statistics Table.
COMPARE
a switch which fixes the distance between the measuring lines so
that the lines may be moved in unison when in X, Y, or XY Mode;
inactive in P-P Mode; ANGLES/CIRCLES Mode; COUNT Mode;
AREA/CHORDS Mode, and TIMER.
TRANSMIT
a button which downloads current measurement readings, marker
coordinates, and statistics through the RS-232C serial port. Such
data must be displayed before being transmitted.
Positioning and Sizing Markers
When operating the VIA-170 with the knob controller, the active markers may be positioned
vertically by rotating the LEFT KNOB. Clockwise rotation moves the marker toward the
14 - Getting Started
Boeckeler VIA-170
bottom of the screen. Counterclockwise rotation moves the marker toward the top. Rotating
the RIGHT KNOB moves the marker horizontally. Clockwise rotation moves the marker to
the right side of the screen. Counterclockwise rotation moves the marker toward the left
side of the screen. Once the marker is positioned, operators may anchor and store the
marker in the overlay by pressing the SELECT button. Drawing can only take place with the
optional light pen or mouse device.
Sizing markers with the knob controller can be accomplished after pressing the keyboard
SIZE OBJECTS/TEXT (CTRL + SHAPES [F3]) key. The LEFT KNOB makes the object
taller or shorter. The RIGHT KNOB makes the object wider or narrower. After objects are
sized, users can save the size by pressing the SELECT button on the knob controller.
Positioning of the sized object may now take place.
Positioning Measuring Lines or Cursors
When measuring with the knob controller, the knobs are used to position measuring lines
and measuring cursors.
While measuring in the X Mode, the left measuring line is controlled by the LEFT KNOB.
The right line is controlled by the RIGHT KNOB. To move both of the lines in unison, press
the knob controller's COMPARE SWITCH to the ON position.
While measuring in the Y Mode, the top measuring line is controlled by the LEFT KNOB.
The bottom measuring line is controlled by the RIGHT KNOB. To move both of the lines in
unison, press the knob controller's COMPARE SWITCH to the ON position.
While measuring in the XY Mode, the left measuring line is controlled by the LEFT KNOB.
The right measuring line is controlled by the RIGHT KNOB. To activate the top and bottom
lines, place the AXIS switch in the P2 position. To move parallel lines in unison, press the
knob controller's COMPARE SWITCH to the ON position.
When measuring in the P-P Mode (point-to-point), the left cross hairs cursor is activated by
placing the AXIS switch in the P1 position. Rotate the LEFT KNOB to position the cursor
vertically and the RIGHT KNOB to position the cursor horizontally. Then place the AXIS
switch in the P2 position to activate the second cursor. Rotate the LEFT KNOB to position
the point vertically and the RIGHT KNOB to position the point horizontally.
When measuring in the ANGLE Mode or CIRCLE Mode, the first cross hairs cursor will
appear on screen alone. Rotate the LEFT KNOB to position the cursor vertically and the
RIGHT KNOB to position the cursor horizontally. When the cursor is positioned on the
screen, press SELECT. The first cursor will be anchored in place and the second cross
hairs cursor will appear, ready for positioning. Follow this procedure until all cross hairs
cursors are anchored. It does not matter whether the AXIS switch is in the P1 or P2 position while in these modes.
When measuring in the AREA/CHORDS or COUNT Mode, the cursors or alphanumeric
letters are positioned individually, one at a time. Rotate the LEFT KNOB to position the
cursor or active letter vertically, and the RIGHT KNOB to position the cursor or letter
horizontally. When the cursor is positioned on the screen, press SELECT. In AREA Mode,
the area enclosed around the cursor will fill. In CHORDS Mode and COUNT Mode the first
cursor/letter will be anchored in place and the second cursor/letter will appear, ready for
positioning. It does not matter whether the AXIS switch is in the P1 or P2 position while in
these modes. It does not matter whether the COMPARE switch is on or off.
Boeckeler VIA-170
Getting Started - 15
Moving through Menus
Except for activating one of three measuring modes in the Area/Chords Data Line, the
knob controller has no effect in menu selections. Use the keyboard POSITIONING keys
instead.
JOYSTICK CONTROLLER
The VIA-170 may operate with either the joystick or knob controller while the keyboard
controller is connected. If all three controllers are connected, the VIA-170 will automatically
default to the joystick controller. Figure 1.4 below depicts the JS-40 Joystick Controller.
This controller functions as the user's auxiliary interface with the VIA-170. In general, the
joystick is used to position markers and measuring lines on the overlay. Broad definitions of
the three keys on the joystick controller are listed below. Refer to this section, if needed,
when general instructions later in the manual ask users to position measuring lines or size
and anchor a marker.
Figure 1.4
JS-40 Joystick Controller
SELECT
a button which anchors the active marker in its current position.
Also selects which measuring line or cursor will be activated for
positioning.
DATA
zeroes out path length (distance display) while drawing with light
pen or mouse. In Measuring w/Statistics Mode, enters displayed
measurement into the Statistics Table.
TRANSMIT
a button which downloads displayed measurements or displayed
marker size and coordinates through the RS-232C serial port.
Positioning and Sizing Markers
When operating the VIA-170 with the joystick controller, the active markers may be positioned vertically by tilting the joystick forward or backward. Tilting the joystick forward
moves the marker toward the top of the screen. Tilting the joystick backward (toward the
16 - Getting Started
Boeckeler VIA-170
operator) moves the marker toward the bottom of the screen. Tilting the joystick right
moves the marker to the right side of the screen. Tilting the joystick left moves the marker
toward the left side of the screen. Once the marker is positioned, operators may anchor and
store the marker in the overlay by pressing the SELECT button. Drawing can only take
place with the optional light pen or mouse device.
Sizing markers with the joystick controller can be accomplished after pressing the keyboard
SIZE OBJECTS/TEXT (CTRL + SHAPES [F3]) key. Tilting the joystick forward and backward makes the object taller or shorter. Tilting the joystick left and right makes the object
wider or narrower. After objects are sized, users can save the size by pressing the SELECT
button on the joystick. Positioning of the sized object may now take place.
Positioning Measuring Lines or Cursors
When measuring with the joystick controller, tilting the joystick positions measuring lines
and measuring cursors.
While measuring in the X Mode, the vertical measuring lines are controlled by tilting the
joystick to the left and right. To move the lines individually, press the SELECT button while
tilting the joystick to the left or right.
While measuring in the Y Mode, the horizontal measuring lines are controlled by tilting the
joystick forward and backward. To move a line independent of the other, press the SELECT
button while tilting the joystick forward or backward.
While measuring in the XY Mode, the horizontal measuring lines are controlled by tilting the
joystick forward and backward, and the vertical measuring lines are controlled by tilting the
joystick to the left and right. To move a line independent of the other, press the SELECT
button while tilting the joystick.
When measuring in the P-P Mode (point-to-point), one cross hairs cursor will move. To
move the other cross hairs cursor, press the SELECT button and tilt the joystick forward or
backward, left or right, or diagonally.
When measuring in the ANGLE Mode or CIRCLE Mode, the first cross hairs cursor will
appear on screen alone. Tilt the joystick forward or backward to position the cursor vertically and tilt the joystick left or right to position the cursor horizontally. When the cursor is
positioned on the screen, press SELECT. The first cursor will be anchored in place and the
second cross hairs cursor will appear, ready for positioning. Follow this procedure until all
cross hairs cursors are anchored.
When measuring in the AREA/CHORDS or COUNT Mode, the cursors or alphanumeric
letters are positioned individually, one at a time. Tilt the joystick forward or backward to
position the cursor or letter vertically, and tilt the joystick left or right to position the cursor or
letter horizontally. When the cursor is positioned on the screen, press SELECT. In AREA
Mode, the area enclosed around the cursor will fill. In CHORDS Mode and COUNT Mode,
the first cursor/letter will be anchored in place and the second cursor/letter will appear,
ready for positioning.
Moving through Menus
Except for activating one of three measuring modes in the Area/Chords Data Line, the
joystick controller has no effect in menu selections. Use the keyboard POSITIONING keys
instead.
Boeckeler VIA-170
Getting Started - 17
MOUSE PEN OR MOUSE CONTROLLER
Figure 1.5 below depicts an optional mouse pen controller. The mouse pen (or other MSTM
or MicrosoftTM mouse device) functions as the user's auxiliary interface with the VIA-170. In
general, the mouse pen is used to draw, write and position active markers or measurement
lines on the video screen by tracing the pen on the mouse pad or other smooth surface
(some operators even use the sides of their legs). This allows users to mark on the monitor
at a distance. The mouse pen can also be used to anchor and size markers on the screen,
which is also a keyboard function. Definitions of the three keys on the mouse pen are
discussed below. Refer to this section, if needed, when general instructions later in the
manual ask users to position lines or anchor a marker.
SELECT
BUTTON #1
SELECT
BUTTON #2
TRACK BALL
SPEED
SWITCH
Figure 1.5
MP-30 Mouse Pen Controller
SELECT
BUTTON #1
SELECT
BUTTON #2
SPEED
SWITCH
(or First Button) a button which anchors the active marker in its
current position. Also selects which measuring line or cursor will be
activated for positioning. While in the DRAW mode, this button is
pressed as the pen is "drawn" across the mouse pad. A drawing
line will be displayed accordingly on screen.
(or Second Button) zeroes out the display of path length while
users are freehand drawing.
switches the speed of the mouse pen track ball from slow to fast.
TRACK BALL moves the cursor, active markers or measurement lines anywhere
on the screen according to how the ball is rolled across a smooth
surface.
Positioning and Sizing Markers
When operating the VIA-170 with the mouse pen controller, the active marker may be
moved anywhere on the screen by lightly dragging the mouse pen across a smooth surface
(such as a mouse pad or the side of one's leg). The marker will follow this movement. For
example, dragging the pen to the left will correspondingly move the marker to the left on the
18 - Getting Started
Boeckeler VIA-170
screen. Clicking the First Button will anchor an active graphic. Dragging the pen
also serves to quickly size a marker if users have activated the sizing mode by pressing the
SIZE OBJECTS/TEXT (CTRL + SHAPES [F3]) key. If concise sizing is desired, operators
should use the keyboard POSITIONING keys instead of the mouse pen.
To draw, users press the First Button while dragging the pen across the mouse pad.
Positioning Measuring Lines or Cursors
When operating the VIA-170 with the mouse pen controller, the measuring lines or cursors
may be moved anywhere on the screen by lightly dragging the mouse pen across a smooth
surface. The marker or measuring line will follow this movement. For example, dragging the
pen to the left will correspondingly move the measuring line or cursor to the left on the
screen.
While measuring, the mouse pen may be used to quickly position measuring lines or
cursors. When first measuring, only the top and/or left lines will be active. To activate the
right and bottom lines, press ENTER on the keyboard, then continue with the light pen.
NOTE: The measuring lines may shift as the pen is jarred or set upon a desk. For
this reason, Boeckeler recommends that mouse pens be used for positioning
markers rather than for positioning measuring lines.
Moving through Menus
Except for activating one of three measuring modes in the Area/Chords Data Line, the
mouse pen controller has no effect in menu selections. Use the keyboard POSITIONING
keys instead.
OTHER MOUSE CONTROLLERS
In general, when operating the VIA-170 with other than MS or Microsoft mouse controllers,
using the buttons on the mouse should achieve the same functions as using the select
buttons on the mouse pen (refer to previous page). Select Button #1 would be the left
button on a mouse device. Select Button #2 would be the right button on a mouse device.
Boeckeler VIA-170
Getting Started - 19
Section Two:
Installation
22 - Installation
Boeckeler VIA-170
INSTALLATION
To install the VIA-170 with composite monochrome EIA RS-170, monochrome CCIR,
composite color (NTSC or PAL) video sources and monitors (refer to Figure 2.1):
1. Make all connections before applying power.
2. Video source connection:
Connect a 75 OHM BNC coaxial cable between the video output of the video
source and the CAMERA connector on the back of the VIA-170.
3. Video monitor connection:
Connect a 75 OHM BNC coaxial cable between the MONITOR connector on the
VIA-170 and the video monitor.
FUSE
HOLDER
(1/2 AMP)
DUAL
VOLTAGE
SWITCH
TO
OPTIONAL
LIGHT PEN
TO
TO
OPTIONAL
PRINTER OR
MOUSE DEVICE COMPUTER
LIGHT PEN
RS-232C
RS-232C
NOT USED IN
COMPOSITE SYSTEMS
VIDEO CONTROL
CAMERA
JOYSTICK
MONITOR
CONTROLLER / ENCODER
KEYBOARD
TO POWER
TO
KEYBOARD
TO OPTIONAL
JOYSTICK
TO OPTIONAL
KNOB
CONTROLLER
BNC CABLE
TO MONITOR
BNC CABLE
TO VIDEO
Figure 2.1
Back Panel of VIA-170
(for composite video systems)
4. Keyboard connection:
Using the keyboard cable provided, connect the VIA-170 keyboard to the KEYBOARD connector on the back of the VIA-170.
5. Knob controller connection (optional):
Using the 25-pin cable provided, connect the optional KS-30 knob controller to
the CONTROLLER/ENCODER connector on the back of the VIA-170.
Boeckeler VIA-170
Installation - 23
6. Joystick controller connection (optional):
Using the 9-pin cable provided, connect the JS-40 joystick controller to the JOYSTICK connector on the back of the VIA-170.
NOTE: If both a knob controller and a joystick controller are connected when
power is initially applied, the VIA-170 will default to the joystick controller. To use
the knob controller, power off, disconnect the joystick, and power up again.
The joystick or the knob controller may be used with the keyboard controller and
with any of the optional mouse or light pen controllers listed below.
7. Mouse pen or other MS Mouse or Microsoft mouse controller (optional):
Connect the mouse cable to the left-most RS-232 port on the back of the VIA-170
(the other RS-232 port is used for printer or computer output).
8. Light pen connections (optional):
A. Using the DB-9 connector at the end of the light pen, connect the light pen to
the LIGHT PEN port on the back of the VIA-170 (refer to Figure 2.1).
NOTE: For installing the optional light pen driver with extension cable, refer to
special instructions beginning on page 29).
NOTE: The light pen may be operated while other optional controllers are
installed.
9. Power supply:
A. Ensure that the DUAL VOLTAGE SWITCH is in the proper position to
coincide with the incoming power supply.
B. Plug the power cord into the back of the VIA-170 and then into a grounded
outlet of the proper voltage and current rating.
C. Plug the video source and monitor power cords into a grounded outlet of
the proper voltage and current rating.
D. For optional light pen driver and extension: Plug wall transformer into a
grounded outlet of the proper voltage and current rating.
E. Turn on the video source, monitor and VIA-170.
NOTE: In order for the VIA-170 to sync with the video, the video source must be
turned on first.
After a moment, the monitor will display a video image of the object(s) in the field of
view. A copyright message will briefly appear (refer to Figure 2.2). This message
will disappear and be followed by overlay #1 or the overlay and mode users were
last in before powering down. If either of these images are displayed, then the VIA170 is working properly and installation is complete. If these images are not properly displayed on the screen, refer to the Troubleshooting Guide in Section Six:
Appendices.
24 - Installation
Boeckeler VIA-170
VIA-170
VIDEO IMAGE MARKERMEASUREMENT SYSTEM
A001753 V1.0
COPYRIGHT 1994
BOECKELER INSTRUMENTS INC.
KEYBOARD INTERFACE:
A001544 V1.0
Figure 2.2
VIA-170 Sample Copyright Message
(version numbers may vary)
Boeckeler VIA-170
Installation - 25
To install the VIA-170 with RGB (NTSC or PAL), or Y/C (NTSC or PAL) video sources
and monitors (refer to Figure 2.3):
1. Make all connections before applying power.
2. VIA-RGB (or VIA-Y/C) interface placement:
The Boeckeler VIA-RGB or Boeckeler VIA-Y/C video interfaces can be easily
stacked on top of the VIA-170 base unit. NOTE: Installations are the same for
VIA-RGB-P and VIA-Y/C-P interfaces (PAL versions of the video interfaces).
FUSE
HOLDER
(1/2 AMP)
DUAL
VOLTAGE
SWITCH
TO
OPTIONAL
LIGHT PEN
LIGHT PEN
TO
TO
OPTIONAL
PRINTER OR
MOUSE DEVICE COMPUTER
RS-232C
RS-232C
TO OPTIONAL
VIA-RGB OR VIA-Y/C
INTERFACE
VIDEO CONTROL
CAMERA
JOYSTICK
MONITOR
CONTROLLER / ENCODER
KEYBOARD
TO POWER
TO
KEYBOARD
TO OPTIONAL
JOYSTICK
TO OPTIONAL
KNOB
CONTROLLER
NOT USED IF VIA-RGB
OR VIA-Y/C IS CONNECTED
Figure 2.3
Back Panel of VIA-170
(for RGB, Y/C)
3. VIA-RGB (or VIA-Y/C) to video source connections:
A. RGB systems:
Connect the red, green, blue and sync lines from the video source to the
corresponding red, green, blue and sync input connections on the back of
the Boeckeler VIA-RGB interface unit (refer to Figure 2.4). Connect the
video output end of the cable to the corresponding connection on the
video source.
B. Y/C systems:
Connect the Y/C cable from the video source to the corresponding
input connections in the VIA-Y/C interface unit (refer to Figure 2.4).
4. VIA-RGB (or VIA-Y/C) to monitor connections:
A. RGB systems:
Connect the red, green, blue and sync lines of the monitor cable to
the corresponding output connection on the VIA-RGB interface. Connect
the monitor end of the cable to the corresponding monitor input connections.
B. Y/C systems:
Connect the Y/C monitor cable to the corresponding output connection of the Boeckeler Y/C interface unit. Connect the monitor end of
the cable to the corresponding monitor input connections.
26 - Installation
Boeckeler VIA-170
RED, GREEN, BLUE &
SYNC LINE CONNECTIONS
FOR VIDEO & MONITOR
R
IN
G
IN
B
IN
SYNC
IN
R
OUT
G
OUT
IN
OUT
Y/C
Y/C CABLE
CONNECTIONS FOR
VIDEO & MONITOR
RIBBON CABLE
CONNECTION FOR
VIA-170 BASE UNIT
B
OUT
SYNC
OUT
VIDEO CONTROL
OUT
VIDEO CONTROL
IN
NTSC
NOT USED FOR
Y/C CONNECTION
RIBBON CABLE
CONNECTION FOR
VIA-170 BASE UNIT
Figure 2.4
RGB Interface (top) and
Y/C Interface (bottom)
5. VIA-RGB (or VIA-Y/C) to VIA-170 connections:
Using the middle connection on the 37-pin ribbon cable provided, connect the
VIDEO CONTROL port of the Boeckeler VIA-RGB (or VIA-Y/C) interface to the
VIDEO CONTROL port on the VIA-170.
6. Keyboard connection:
Using the keyboard cable provided, connect the VIA-170 keyboard to the
KEYBOARD connector on the back of the VIA-170.
7. Knob controller connection (optional):
Using the 25-pin cable provided, connect the KS-30 knob controller to the
CONTROLLER/ENCODER connector on the back of the VIA-170.
8. Joystick controller connection (optional):
Using the 9-pin cable provided, connect the JS-40 joystick controller to the
JOYSTICK connector on the back of the VIA-170.
NOTE: If both a knob controller and a joystick controller are connected when power
is initially applied, the VIA-170 will default to the joystick controller. To use the knob
controller, power off, disconnect the joystick and power up again.
The joystick or the knob controller may be used simultaneously with the keyboard
controller or with any of the optional mouse or light pen controllers listed in
Section One: Getting Started, Optional Components.
9. Mouse pen or other MS Mouse or Microsoft mouse controller (optional):
Connect the mouse cable to the left-most RS-232 port on the back of the
VIA-170 (the other RS-232 port is used for printer or computer output).
NOTE: The mouse may be operated while other optional controllers are installed.
Boeckeler VIA-170
Installation - 27
10. Light pen connections (refer to Figure 2.6):
A. Using the DB-9 connector at the end of the light pen, connect the light pen to
the LIGHT PEN port on the back of the VIA-170 (refer to Figure 2.1).
NOTE: For installing the optional light pen driver with extension cable, refer to
special instructions beginning on page 29).
NOTE: The light pen may be operated while other optional controllers are
installed.
10. Power supply:
A. Ensure that the DUAL VOLTAGE SWITCH is in the proper position to
coincide with the incoming power supply.
B. Plug the power cord into the back of the VIA-170 and then into a grounded
outlet of the proper voltage and current rating.
C. Plug the video source and monitor power cords into a grounded outlet of
the proper voltage and current rating.
D. For optional light pen driver and extension: Plug wall transformer into a
grounded outlet of the proper voltage and current rating.
E. Turn on the video source, monitor and VIA-170.
NOTE: In order for the VIA-170 to sync with the video, the video source must
be turned on first.
After a moment, the monitor will display a video image of the object(s) in the field of
view. A copyright message will briefly appear (refer to Figure 2.5). This message
will disappear and be followed by overlay #1 or the overlay and mode users were in
last before powering down. If either of these images are displayed, then the VIA170 is working properly and installation is complete. If the images are not properly
displayed on the screen, refer to the Troubleshooting Guide in Section Six:
Appendices.
VIA-170
VIDEO IMAGE MARKERMEASUREMENT SYSTEM
A001753 V1.0
COPYRIGHT 1994
BOECKELER INSTRUMENTS INC.
KEYBOARD INTERFACE:
A001544 V1.0
Figure 2.5
Sample Copyright Message
(version numbers may vary)
28 - Installation
Boeckeler VIA-170
INSTALLATION FOR OPTIONAL
LIGHT PEN EXTENSION
The LPX-DRV extension driver and LPX-CBL cable extensions are accessories provided
by Boeckeler Instruments which extend the distance between the VIA-170 and the light
pen. This extension allows operators to use a light pen at the front of a large room, while
the VIA-170 is conveniently placed at the back of the room. In order to ensure that signal
power remains strong throughout the length of the light pen cable, a transmitter, receiver
and power supply are necessary components of the driver.
This section describes the installation procedures for the light pen, light pen extension
cable and driver, the latter of which consists of a cable transmitter, cable receiver and cable
power supply. Instructions for installation of the VIA-170 to a video display and video
source begin on page 23.
To install the VIA-170 with optional light pen driver and extension cable (refer to
Figure 2.6):
1. Make all connections before applying power.
2. Extension Receiver to VIA-170:
A. Using the DB-9 cable provided, connect the LPX Extension Receiver to
the LIGHT PEN port on the VIA-170.
3. Extension Receiver to power supply:
A. Using the power cord attached to the power supply, connect the DC-9V
connector on one side of the receiver to the power supply.
4. Extension Cable Connections:
A. Connect one end of the beige extension cable to the RJ-45 connector on
Power Supply
DC-9V Connector
to Power Supply
DB-9 Connector
DB-9 Connector
RJ-45 Connector
(like phone jack)
LPX Extension
Transmitter
LPX Extension
Receiver
Extra Cable
Light Pen
DB-9 Connection
to VIA-170 Light Pen Port
Figure 2.6
Configuration for the LPX Light Pen Extension
Receiver, Transmitter and Related Cables.
Boeckeler VIA-170
Installation - 29
the receiver. An RJ-45 connector is similar in appearance to a phone jack.
B. Connect the other end of the beige extension cable to the input connector
on the LPX Extension Transmitter box.
5. Extension Transmitter to Light Pen Connections:
A. Using the DB-9 light pen cable attached to the light pen, connect the light
pen to the other end of extension transmitter.
6. Power connections:
A. Plug the LPX power supply into any grounded outlet.
B. Follow other installation procedures for the VIA-170 which begin on page
23.
30 - Installation
Boeckeler VIA-170
Section Three:
Video Marking
Boeckeler VIA-170
Marking - 31
32 - Marking
Boeckeler VIA-170
OVERVIEW
The VIA-170 equips operators with a variety of graphics, called markers, which are
placed over a video image to assist in analyzing or annotating the image. The markers
available include typed text and numbers, 10 different pointers (arrows, cross hairs,
pointed cross hairs, etc.), custom scales and grids, a date/time label, sizeable circles,
boxes, crosslines and straight line drawing. Freehand drawing is also available with the
addition of the optional LP-32 light pen. Any combination of these markers may be
placed on the screen. Such a combination is called an overlay. Figure 3.1 below
depicts a possible combination of VIA-170 markers, including typed text, scales (laid
end to end to create a reticle), a circle, a box, a handwritten approval and a date/time
label.
While power is on, an overlay may be changed or erased. When powered down, the
VIA-170 will automatically store up to ten different overlays.
Markers must first be saved or anchored on an overlay before they are stored in the
VIA-170 memory. To anchor a marker, operators will press the ENTER key on the
keyboard, or press the tip of the optional light pen into the screen, or press SELECT on
the joystick or knob controller. Until a marker is anchored in such a way, the marker
remains freely positionable and is referred to as an active marker. Once a marker is
anchored, it cannot be repositioned or changed. However, an anchored marker can be
erased.
TYPE VA0123
09-12-93
12:00
Figure 3.1
A combination of VIA-170 graphics.
Boeckeler VIA-170
Marking - 33
USING THE MARKER KEYS
Figure 3.2 illustrates the VIA-170 keyboard and the various function keys. The keyboard is basically divided into three types of functions keys: marker keys, measurement keys and action keys. The marker keys include graphics, text and number keys.
All marker keys are used to annotate a video image in a variety of combinations for a
variety of labelling functions before or after measuring.
The Marker Mode is entered any time one of the marker keys is pressed. If users are
in the Measurement Mode (e.g., having pressed the XY MEASURE [F9] key), pressing a marker key will automatically exit measuring and enter marking. The measuring
lines will disappear and the selected active marker or cursor will appear on screen.
Marking of the video image can now take place.
Serving users in both the Marker Mode and the Measurement Mode are the action
keys (refer to Figure 3.2). In the Marker Mode, these keys perform actions with regard
to the positioning, anchoring and erasing of the markers. Action keys also allow users
to move through the different marker overlays and menus, or to begin RS-232 transmission.
A description of marking functions begins on the next page. Following the description
of marking keys is a description of action keys and how they affect the marking
functions.
MARKER KEYS
(Graphics)
MEASUREMENT KEYS
MARKER KEYS
(Text/Numbers)
ACTION KEYS
Figure 3.2
VIA-170 Keyboard Controller
34 - Marking
Boeckeler VIA-170
General Marking Procedure
The following is a general procedure for selecting and placing a marker. Specific
marker key functions are discussed in the following pages.
To select and place a marker:
1. Press the desired marker key.
2. If the size or the coordinates of a marker are critical, press the SHOW MARKER
SIZE/COORDINATES key combination, which is CTRL + SCALES/GRIDS [F2],
and choose display selections (size only, coordinates only or both). Size dimensions are not displayed for pointers, the date/time label, crosslines, or drawing
cursor. Grids do not display coordinates.
NOTE: The size display (X:, Y: or D:) is based upon calibrations set and
assigned to the displayed CAL#. To change the CAL#, press the SELECT
CALIBRATION # [Scroll Lock] key. To recalibrate a CAL#, refer to the calibration procedures listed on page 70 in Section Four: Video Measuring. Size
displays are given for the width and height of a shape, or the length of a line or
scale.
The coordinates display (X=, Y= ) is based entirely upon pixel arrangements,
not a calibration. Coordinates 1,1 represent the lower left corner of the screen.
Pixel coordinates, depending on the camera and monitor, may be displayed as
high as 1024 pixels by 482 pixels. Coordinates are given for the center point of
an active shape, scale, crosslines, or cross hairs; for the end point of an active
line, arrow or text label; or for the center point of the drawing cursor.
3. Size the marker, if the marker is a scale, grid, circle, box or text label.
A. Press the SIZE OBJECTS/TEXT key combination (CTRL + SHAPES
[F3]).
B. Use the keyboard POSITIONING keys or other controller to size the
marker. If desired, use the size display to aid in sizing. Press ENTER.
NOTE: An active text label is selected as large or small by pressing the SIZE
OBJECTS/TEXT key combination (CTRL + SHAPES [F3]).
4. Position the active marker on the overlay. If desired, use the coordinates display
to aid in positioning.
A. For lines, position the cursor at the point where the line is to begin.
Press ENTER to anchor this point. Position the second cursor where
the line is to end.
5. Anchor the active marker/cursor on the overlay by pressing ENTER.
6. To select and place another marker, repeat steps 1-5.
7. To view the image without the marker overlay, press the ALL GRAPHICS ON/OFF
[Esc] key.
Boeckeler VIA-170
Marking - 35
Marker Keys
POINTERS [F1]
Pointers
F1
Selects a different pointer each time this key is pressed. Arrow graphics available
include four arrows, each pointing in one of four different directions. Following the
sequence of four arrow graphics is a cross hairs, a pointed cross hairs, a small target
circle, small circle, small target box, and a small box.
Select a pointer by pressing the POINTERS [F1] key until the desired pointer is
displayed. To cycle backwards through the pointer selections press the SHIFT key plus
the POINTERS [F1] key. Position the pointer using keyboard POSITIONING keys or
other controller. Press ENTER to anchor the pointer in the marker overlay. In a
protected overlay, users can anchor pointers, but they can erase and clear only these
added pointers (or other added markers). For Security Menu setup, refer to instructions
on page 48.
SCALES/GRIDS [F2]
Scales/
Grids
F2
Selects a different scale or grid each time this key is pressed. At the first press of the
key, a horizontal scale will appear. The second press will display a vertical scale. At
subsequent presses, a full box grid will appear, then a horizontal grid (horizontal lines
only), followed by a vertical grid (vertical lines only). All scales and grids will be displayed where the last active marker was displayed. The active grid or scale will remain
sizeable and positionable until anchored. To cycle backwards through the scale and
grid selections press the SHIFT key plus the SCALES/GRIDS [F2] key. In a protected
overlay, users can anchor scales/grids, but they can erase and clear only these added
scales/grids (or other added markers).
To size a scale or grid, press the SIZE OBJECTS/TEXT key combination (CTRL +
SHAPES [F3]) and use the POSITIONING keys or other controller to adjust the size.
For fine sizing press the CTRL key along with the desired POSITIONING key. Pressing
the LEFT POSITIONING key will make the grid narrower, while pressing the RIGHT
POSITIONING key will make the grid wider. Pressing the UP POSITIONING key will
make the scale or grid taller, while pressing the DOWN key will make the scale or grid
shorter. Vertical scales are sized using the UP and DOWN POSITIONING keys.
Horizontal scales are sized using the LEFT and RIGHT POSITIONING keys.
When the desired size is displayed, press ENTER to store the size. The sized grid or
scale may now be positioned anywhere on the overlay using keyboard POSITIONING
keys or other controller. Anchor the grid or scale by pressing ENTER.
TIP: Use cross hairs pointers as tick marks on a scale to create custom rulers.
First, size and position, then anchor a scale at the edge of the screen. Press
the POINTERS [F1] key. Select a cross hairs pointer, then position the cross
hairs over the scale so that one of the cross hairs lines overlaps the line of the
scale. Anchor the cross hairs pointer by pressing ENTER. Another cross hairs
pointer of the same type can be placed along the scale at a desired distance
from the first pointer. Anchor the second cross hairs pointer. This same
procedure can be repeated to create as many tick marks on the scale as
needed.
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Y : 00015.
Microns
1000 X
Cal 1
X=612
Y=302
Figure 3.3
Creating a Custom Ruler or Reticle
Coordinates displayed at lower left are for the active scale (small scale to right of reticle).
Size display in upper part of screen represents the size of the active scale.
Tick marks may also be created simply by placing sized scales end to end,
either vertically or horizontally. Vertical and horizontal scales on the same
overlay create a custom reticle (refer to Figure 3.3).
Ctrl +
CTRL + SCALES/GRIDS [F2] = Show Marker Size/Coordinates
Although this key combination has a measuring function, it is used primarily in conjunction with marking keys to assist in sizing and positioning. Pressing this key combination while in the Marker Mode displays the Marker Display Menu in which users can
choose to display the size of an active marker and/or the coordinates of an active
marker. Marker size and coordinates are not displayed while users are in the
Measurement Mode. Follow instructions in the Marker Display Menu. After making a
display selection and choosing SAVE or CANCEL, users will be returned to the current
marker overlay. The marker size and/or coordinates display that was selected, if any,
will be displayed on screen with the markers. Below are explanations of the three
available options in the Marker Display Menu.
DISPLAY SIZE
displays the length of an active scale or line, the height
and width between active grid lines, or the height and
width of an active circle or box, displayed in the upper left
corner as X:, Y: or D:. There is no size display for a
pointer, crossline, or date/time label. The size display is
based upon calibrations set and assigned to the displayed
CAL#. Change CAL# (0-9) to obtain the proper calibration, or recalibrate (refer to page 70).
NOTE: For shapes and grids, sizes are calculated by the
Boeckeler VIA-170
Marking - 37
VIA-170 using the inside edges of parallel lines (e.g., in the
horizontal measurement of a box, the measurement is
calculated from the inside edge of the left side of the box to
the inside edge of the right side of the box). For scales, sizes
are calculated using the outside edge of the left or top line,
and the inside edge of the right or bottom line. Size displayed
for straight lines or freehand drawing lines is a point-to-point
distance.
DISPLAY COORD.
displays the horizontal and vertical coordinates for the center
point of an active circle, box, crossline, cross hairs pointer or
scale, or for the end point of an active line, drawn line, arrow
or text label. Displayed in the lower left corner as X= and Y=.
There are no coordinates for grids. The coordinates display
is based entirely upon pixel arrangements fixed within the
VIA-170. Coordinates 1,1 represent the lower left corner of
the screen. Depending on the camera and monitor, pixel
coordinates may be displayed as high as 1024 pixels by 482
pixels.
NOTE: Coordinates for a shape, crossline, or cursor represent the center point of the shape, crossline, or cursor.
Coordinates for an active arrow pointer represent the tip of
the arrow. Coordinates for active scales represent the
intersection of the base scale line and the left or top end line.
For an active line of text or an active date/time label, coordinates represent the upper left corner of the display.
DISPLAY BOTH
displays both the size (in upper left corner) and the coordinates (in lower left corner) of an active marker.
NO INFORMATION
allows users to remove the display from the marker overlay.
SHAPES [F3]
Selects a box or a circle each time this key is pressed. Circles and boxes will remain
active (sizeable and positionable) until anchored.
Shapes
F3
To size an active box or circle, press the SIZE OBJECTS/TEXT [F3] key, then use the
keyboard POSITIONING keys or other controller to adjust the shape. For fine sizing,
press the CTRL key along with the desired POSITIONING key. Pressing the LEFT
POSITIONING key will make the shape narrower, while pressing the RIGHT key will
make the shape wider. Pressing the UP POSITIONING key will make the shape taller,
while pressing the DOWN key will make the shape shorter.
When the desired size is displayed, press ENTER to store the size. The sized circle or
box may now be positioned anywhere on the overlay.
After positioning, anchor the circle or box by pressing ENTER. In a protected overlay,
users can anchor shapes, but they can erase and clear only these added shapes (or
other added markers).
38 - Marking
Boeckeler VIA-170
Ctrl +
CTRL + SHAPES [F3] = Size Objects/Text
Activates the sizing mode for objects (scales, grids, boxes and circles) and text. Sizing
may only take place for active objects or active text blocks. Once objects or text have
been anchored, they may not be sized again. To size objects, users must first have
pressed the appropriate marker key, and the active marker must be displayed on
screen. To enter the sizing mode, press the SIZE OBJECTS/TEXT key combination
(CTRL + SHAPES [F3]). Size objects by operating the positioning keys on the keyboard. To rapidly size objects, use an optional controller. For finer sizing control, press
the CTRL key while pressing a positioning key. To store the size and exit the sizing
mode, press ENTER. The object may now be positioned.
To size text, users must first have pressed a text or number key, and a text cursor
must be displayed on screen. To sequence to the available text sizes, small and large,
press the SIZE OBJECTS/TEXT key combination (CTRL + SHAPES [F3]). Begin
typing. After typing the first line, position it anywhere on the screen by using keyboard
positioning keys or other controller. To anchor the label, press ENTER. The next line of
text may be sized and positioned independently from the previous line or can be added
to the previous line to form a text block.
CROSSLINES [F4]
Cross
Lines
F4
Selects a crossline in one of 10 different line patterns each time this key is pressed.
Patterns include fine, medium and bold solid lines; fine, medium and bold dashed lines;
fine and bold dotted lines; and fine and bold scaled lines. To cycle backwards through
the patterns, press SHIFT + CROSSLINES [F4].
NOTE: Since many customers have asked for a crossline that is 1 pixel wide,
the VIA-170 offers this option, although such a crossline may display a jittering
horizontal line that is undesirable for some applications.
Position the active crossline using keyboard positioning keys or other controller. To
display the coordinates of the intersection while positioning, activate the COORDINATES display by pressing the SHOW MARKER SIZE/COORDS key combination
(CTRL + SCALES/GRIDS [F2]). After positioning, anchor the crossline by pressing
ENTER. In a protected overlay, users can anchor crosslines, but they can erase and
clear only these added crosslines (or other added markers). To change the style of
crossline displayed (e.g. one axis only, open center or closed center, autocenter on or
off), make changes in the Set Crossline Menu accessed by pressing CTRL + CROSSLINES [F4].
Ctrl +
CTRL + CROSSLINES [F4] = Set Crossline Style
This key combination is used to access the Set Crossline Menu. Follow instructions to
select the crossline display as VERTICAL, HORIZONTAL, or both VERTICAL AND
HORIZONTAL. Users may also turn on the AUTOCENTER feature which automatically
centers the intersection of the crossline on the marker overlay. The intersection may
also be selected as CLOSED or OPEN.
NOTE: Automatically-centered crosslines are locked and cannot be positioned,
Boeckeler VIA-170
Marking - 39
even while active. Although seemingly anchored, centered crosslines are not
saved on the overlay until they are anchored by pressing ENTER.
After making selections and choosing SAVE or CANCEL, users will be returned to the
current marker overlay. Changes that were saved in the menu will now affect the active
crossline.
LINES [F5]
Activates straight line drawing and selects one of three line thickness cursors each
time the key is pressed. Lines are available in fine, medium or bold thicknesses. To
cycle backwards through the line thickness selections, press the SHIFT + LINES [F5] .
Lines
F5
Select the thickness displayed by the cursor, then position the cursor where the line is
to begin by using the keyboard positioning keys or other controller. To display the
length of the line while drawing, be sure to first activate the SIZE display by pressing
CTRL + SCALES/GRIDS [F2] and selecting MARKER SIZE option.
To anchor the first endpoint of the line, press ENTER. Reposition the cursor where the
line is to end. A straight line will automatically follow the second cursor until the cursor
is anchored. To anchor or save the line press ENTER. In a protected overlay, users
can anchor lines, but they can erase and clear only these added lines (or other added
markers).
Ctrl +
CTRL + LINES [F5] = Align Mode
Aligns a marker overlay with an object in the field of view (i.e., to reposition all markers
in unison). The Offset Display will appear if users have selected to display the marker
size or coordinates, CTRL + [F2]. At the start, the Offset Display in the lower left of
the screen reads X = 0, Y = 0, which represents a zero offset or no alignment in terms
of pixel coordinates of the lower left corner of the overlay. Offset Units will be displayed across the top of the screen in terms of calibrated units. Use the keyboard
POSITIONING keys or another controller to move the overlay left, right, up or down.
The Offset Display will correspondingly reflect pixel coordinates of the lower left
corner of each new alignment. Negative X values represent marker movement to the
left of the default overlay position. Negative Y values represent marker movement
below the default overlay position.
To save the offset and exit the Align Mode, press ENTER or press any other function
key. Markers may be added, erased or cleared at this point. A different offset can be
attributed to each of the marker overlays (#1 - #10).
To clear an offset and return the marker overlay to the default coordinates (Y = 0, X =
0), press CTRL + CLEAR [End]. A warning message will appear to avoid an unintentional clear.
NOTE: Even when users are in a Measurement Mode, the alignment of the
markers can be cleared without influencing measurement lines.
NOTE: Alignments can be made and saved even when marker overlays are
protected. Protection ensures that markers are not inadvertently erased.
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Boeckeler VIA-170
DRAW [F6]
Draw
F6
Activates freehand drawing/writing mode when users have installed the optional LP-32
light pen, MP-30 mouse pen, or other MS Mouse or Microsoft mouse device. Also
selects a different line thickness cursor each time this key is pressed. To cycle backwards through the line thickness selections, press SHIFT + DRAW [F6]. After selecting
the line width, position it where drawing is to begin. Draw or write with the drawing
instrument (mouse pen, light pen, etc.). LIGHT PEN: Press tip button into screen while
drawing pen across screen. MOUSE: Press the left or first button while drawing on
mouse pad or other smooth surface.
A drawing is automatically anchored on the overlay and may not be positioned. However, the drawing can be partially erased, or cleared from the screen. To erase a
segment of the drawing, press UNDO [Delete]. To erase an entire drawing and all
other anchored markers on the overlay press CLEAR [End]. In a protected overlay,
users can draw as usual, but they can erase and clear only these added drawings (or
other added markers).
To obtain the path length of a drawn line as it is being drawn, select the SIZE mode in
the Show Marker Size/Coords Menu (CTRL + [F2]). If a path length is desired and
the user is drawing more than one object or segment on the overlay, the path length
value will reflect a sum of all segment lengths. To zero out the value before continuing
to draw another object, press the barrel button on the light pen, left or second button
on the mouse, or the DATA button on the joystick or knob controller.
To automatically close a gap between endpoints of a drawn line, activate AUTOINTERCEPT by pressing ALT + I. This feature is desired when users are preparing to
measure the area of an image which must be defined with a closed shape or closed
freehand drawing. Turning on the autointercept feature enables users to draw a shape
without concern for making a complete closure. When the drawing is nearly closed,
and the light pen is lifted away from the screen, the VIA-170 will automatically draw a
line connecting the two ends of the line, thus forming a shape. To turn off
AUTOINTERCEPT, press ALT + I again.
Ctrl +
CTRL + DRAW [F6] = Calibrate Light Pen
Before drawing with the light pen, operators may wish to calibrate the pen. This is done
by accessing the Light Pen Calibration Menu by pressing the key combination CTRL
+ DRAW [F6]. The Light Pen Calibration Menu will be displayed on screen along
with calibration cross hairs (refer to Figure 3.4). Pressing any function key at this point
will exit the Light Pen Calibration Menu. If operators wish to continue, press the light
pen directly on the cursor for no offset margin - OR - press the light pen at a desired
distance from the cursor to create an offset margin.
Such calibration sets the offset margin between the point that the light pen touches the
screen and the point that the drawing line or positionable markers will be "offset" from
the pen tip. When the pen tip is pressed on the screen, the offset margin is automatically stored and the light pen calibration mode exited.
Boeckeler VIA-170
Marking - 41
To calibrate, position light pen
on center of cross hairs and
activate switch at tip of light
pen by pressing pen into the
screen. Exit without changing
calibration by pressing any key.
Figure 3.4
Light Pen Calibration Menu
SHOW DATE/TIME [F7]
09-12-98
10:00 am
Show
Date/Time
F7
Displays the current date and/or time, depending on which display mode was selected
in the SET DATE/TIME mode. The DATE/TIME icon may be positioned anywhere on
the marker overlay. To anchor or save the DATE/TIME, press ENTER. The date and/or
time will be anchored on the screen displaying the current date/time. An active DATE/
TIME icon will also be displayed. The display will update every 15 seconds. For a timer
that displays hundredths of a second, refer to Section Four: Video Measuring.
NOTE: Only one DATE/TIME label can be anchored on an overlay. To reposition the DATE/TIME label, simply anchor the active DATE/TIME icon again.
When the new label is anchored, the former label will disappear. If there is a
DATE/TIME label in a protected overlay, users cannot reposition it, they cannot
change the display in the Set Date/Time Menu, and they cannot clear or undo
the label.
To set the date or time, press CTRL + SHOW DATE/TIME [F7].
Ctrl +
CTRL + SHOW DATE/TIME [F7] = Set Date/Time
To SET DATE/TIME, press the CTRL + SHOW DATE/TIME [F7]. The Set Date/Time
Menu will be displayed (unless the label is protected, in which case, the message will
flash on screen that the "Date/Time Label is Protected").
In the menu, enter the desired number displayed over the cursor, or press ENTER to
move the cursor to the next data entry line. Once the digit is changed, the cursor will
automatically move to the next numeric position or entry. Continue this process until
all figures are correct. When in the DISPLAY option, press the space bar to select
displaying the TIME only, DATE only or both DATE & TIME. Press ENTER to save
and exit the menu, or position the cursor over the CANCEL option if the previous
settings are desired. After selections are made, users can exit the menu and return to
the overlay and mode they were in before entering the Set Date/Time Menu.
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Boeckeler VIA-170
CHANGE COLOR [F8]
Change
Color
F8
Changes the color or gray level of the active marker for optimum contrast with the video
image or to contrast the current marker with other markers on the overlay. Repeatedly
pressing this key will cycle through the three different colors or gray levels that have
been assigned by the user in the Set Color Menu (discussed below). When the active
marker displays the desired color, the marker can be positioned and anchored in that
color.
NOTE: If the color of the graphics does not change from black, the brightness
level is too low and must be increased before selecting the color. Brightness is
increased in the Set Color Palette Menu. Consult the installation section of
this manual to identify video interfaces which can create color markers for RGB
and Y/C systems.
An active text label and active date/time label will appear in one of 9 different color
combinations, since the background for the text also changes. For text and date/time
labels, users can reverse the sequence of choices by pressing SHIFT + CHANGE
COLOR [F8].
NOTE: For RGB systems with sync on green (and no VIA-RGB interface),
color selections will be in hues of green and pink).
NOTE: On some Y/C systems with a VIA-Y/C interface and certain cameras or
monitors, there can be a slight blurring of vertical lines. To solve this problem,
users can change the color of the VIA-170 lines to white, gray or black.
Ctrl +
CTRL + CHANGE COLOR [F8] = Set Color & Brightness
This key combination calls up two menus that assist users in 1) defining a three-color
palette and, 2) designing menus using these three colors. By designing a palette and
menus, the VIA-170 markers and menus can be made to optimally contrast with the
video image, thus reducing eye strain and increasing legibility.
The first menu displayed is the Set Color Palette Menu in which users choose three
colors they would like to use for markers, measuring lines, and menus (refer to Figure
3.5). Colors available are red, green, blue, magenta, yellow, white and black. To select
a color, press the CHANGE COLOR [F8] key until the desired color is displayed. All
colors available for markers, measurement lines, and menus will be based on the
selections made in this menu. No two colors can be the same. For example, if Color
#1 is black, colors sequenced through for #2 and #3 will skip over the black option. If
black is desired for Color #2, operators need to change Color #1 from black to another
color.
Additionally, each color may be displayed in a range of brightness levels. If, for example, the color red is selected for Color #1, it can be displayed in one of five different
brightness levels.
To select a brightness level for a color, press the SPACE BAR or BACKSPACE key to
cycle through the brightness levels. When the desired brightness level is displayed,
move on to define Color #2 by pressing the RIGHT POSITIONING key. Repeat the
procedure with Color #2 -- first select the color, then the brightness level, then move on
Boeckeler VIA-170
Marking - 43
Set Color Palette
Color #1
Color #2
Color #3
Press CHANGE COLOR [F8] to
sequence through color options.
Press SPACE BAR or BACKSPACE KEY
to sequence through brightness levels.
SAVE
CANCEL
Figure 3.5
Set Color Palette Menu
SET MENU COLORS
#2
#1
#3
#4
MENU TEXT COLOR:
3
MENU BACKGROUND COLOR:
1
Press SPACE BAR to sequence
through options.
PREV MENU
CANCEL
SAVE
Figure 3.6
Set Menu Colors Menu
44 - Marking
Boeckeler VIA-170
to Color #3 and repeat. When all three colors are set, select SAVE. Users will exit the
Set Color Palette Menu and will be presented with the Set Menu Colors Menu (refer
to Figure 3.6).
The Set Menu Colors Menu will display the three selected colors plus a "no fill"
option. Follow instructions to select MENU TEXT color and MENU BACKGROUND
color.
NOTE: The MENU TEXT option will not offer the "no fill" display, that is, text
cannot be made to appear transparent. Also, the VIA-170 ensures that the
MENU BACKGROUND color will be different than the text color by not offering
an already-used color option.
If the MENU BACKGROUND is #4 (no fill), all three colors will be available for menu
TEXT.
When menu colors have been selected, select SAVE. Colors will be saved and users
will be returned to the marker overlay they were in before activating the color menus.
NOTE: Protected markers will reflect any changes made in the color palette.
TEXT/NUMBER KEYS
Pressing any of the 47 text/number keys will automatically activate the text mode. Text,
in upper or lower case, will appear on screen wherever the last active marker or cursor
was located. After typing one line, the text label may be positioned anywhere on the
screen with keyboard POSITIONING keys or another controller. The text label may be
positioned before or after typing. To select a small or large size of text, press the SIZE
OBJECTS/TEXT SIZE key combination before anchoring the line of text (CTRL +
SHAPES [F3]).
To anchor or save the active line of text, press ENTER. The line of text will be
anchored and the text cursor will shift down one line, ready for another line of text. Text
does not wrap, so press ENTER at each line end.
Pressing SHIFT + a TEXT/NUMBER key will display the upper case version of that key.
To exit the text mode, simply press any other marking or measuring function key.
NOTE: The numeric keypad on the far right of the keyboard can be activated
by pressing the NUM LOCK key.
When changing colors of an active text label, bear in mind that the text will cycle
through the three available colors, and the text background will cycle through three
available colors. Never will the text color match the background color. In addition, the
text background will cycle to "no fill," so that text can be displayed without a background. In total, there are nine different color combinations in which the background
and text can be displayed.
Boeckeler VIA-170
Marking - 45
USING THE ACTION KEYS IN MARKING
UP/DOWN POSITIONING KEYS
Positions the active marker or cursor up or down one increment at a time, until the
marker is anchored by pressing ENTER
ENTER. For fine positioning, press CTRL + the UP or
DOWN key. In ALIGN Mode
Mode, positions all markers in unison up or down.
POSITIONING keys are also used to size objects vertically. These objects include
horizontal grids, vertical scales, box grids, boxes and circles. Once in the sizing mode
CTRL + SHAPES [F3]
(CTRL
[F3]), press the UP POSITIONING key to make the object taller.
DOWN
POSITIONING
key to make the object shorter. To save the size and
Press the
ENTER
exit sizing, press ENTER. The sized object may now be positioned anywhere on the
screen.
In menus, positions the cursor up or down among options, when such options are
available. Moves page up or down in help messages.
LEFT/RIGHT POSITIONING KEYS
Positions the active marker or cursor left or right one increment at a time, until the
marker is anchored by pressing ENTER. For fine positioning, press CTRL + the LEFT
or RIGHT key. In ALIGN Mode, positions all markers in unison left or right.
This key is also used to size objects horizontally. These objects include vertical grids,
horizontal scales, box grids, boxes and circles. Once in the sizing mode (CTRL +
SHAPES [F3]), press the LEFT POSITIONING key to make the shape wider. Press
the RIGHT POSITIONING key to make the shape narrower. To save the size and exit
sizing, press ENTER. The sized object may now be positioned anywhere on the
screen.
In menus, positions the cursor left or right among options, when such options are
available.
ENTER STATISTIC [Insert]
Not used in Marking Mode
Mode.
OVERLAY [Home]
Removes the cursor, active markers and data lines (marker size/coordinates; timer)
from the screen so that only the anchored markers in the current overlay are visible.
This option is usually desired before making a video copy.
To regain an active marker or cursor on the overlay, press any function key.
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Ctrl +
CTRL + OVERLAY [Home] = Undelete
Restores recently deleted marker to its original location on the marker overlay. If
markers were recently cleared, pressing CTRL + OVERLAY [Home] restores the full
overlay of markers. In a protected marker overlay, the undelete command only affects
added markers. Undelete does not affect protected markers.
PREV OVERLAY [Page Up]
Displays the previous overlay and the markers stored in that overlay (if any). Pressing
this key repeatedly will continue to display each previous overlay in descending order.
The number of each new overlay will appear briefly at the bottom right corner of the
screen. Ten different overlays may be stored (#1 - #10).
If the overlay had been aligned, the aligned markers will be displayed at their saved
offset, but the ALIGN Mode will not be active. This means that the entire overlay will
not be positionable until users activate the ALIGN Mode.
UNDO [Delete]
Erases markers one at a time, beginning with the most recently anchored marker. This
key may be repeatedly pressed until all anchored graphics have been erased. The
UNDO key will not remove the active marker or cursor. To remove the active graphic or
cursor, press OVERLAY [Home]. If users mistakenly erase a marker, they may "undelete" it by pressing CTRL + OVERLAY [Home].
In a protected marker overlay, the UNDO key only affects added markers. UNDO
[Delete] does not affect protected markers. When all added markers have been erased
and only protected markers remain, attempting an UNDO will briefly display the message "Markers Protected," and users will returned to the protected overlay. To UNDO
a protected marker, the password holder needs to enter the Security Menu, CTRL +
POINTERS [F1], select Marker Overlay Protect OFF, exit the menu, erase the desired
marker(s), then enter the Security Menu and select Marker Overlay Protect ON.
CLEAR [End]
Clears the overlay of all markers at once. A warning message will appear on screen to
avoid an unintentional erase. To proceed with the clearing procedure, select the
CLEAR option. To cancel the procedure and retain current markers, select CANCEL.
After clearing, the active marker or cursor will remain on screen even when all graphics
have been cleared. To remove the active marker or cursor, press OVERLAY [Home].
To "undelete" cleared markers, press CTRL + OVERLAY [Home].
In a protected marker overlay, the CLEAR key only affects added markers. CLEAR
[End] does not affect protected markers. To CLEAR protected markers, the password
holder needs to enter the Security Menu, CTRL + POINTERS [F1], select Marker
Overlay Protect OFF, exit the menu, and clear the markers.
Boeckeler VIA-170
Marking - 47
Ctrl +
CTRL + CLEAR [End] = Clear Offset Created in Align Mode
Clears the offset (alignment) of markers in the current overlay so that coordinates will
return to their default position (X = 0, Y = 0). A warning message will appear on screen
to avoid an unintentional clear. Unaligned overlays will remain unchanged.
NOTE: Even when in a Measurement Mode, users will be able to clear an
offset with this key combination. Also, a protected marker overlay can be
cleared of its alignment.
NEXT OVERLAY [Page Down]
Advances users to the next overlay and any markers stored in that overlay. Pressing
this key repeatedly will continue to display the next overlay in ascending order. The
number of each new overlay will appear briefly at the bottom right corner of the screen.
Ten different overlays may be stored (#1 - #10).
If the overlay was aligned, the aligned markers will be displayed at their saved offset,
but the ALIGN Mode will not be active. This means that the entire overlay will not be
positionable until users activate the ALIGN Mode.
¿
ENTER
Anchors an active marker. Once dropped, a marker cannot be moved or changed.
However, markers may be removed by pressing UNDO [Delete] or CLEAR [End]. In a
protected overlay, users can anchor additional markers over protected markers, but
they can erase and clear only the added markers.
In ALIGN Mode, anchors all markers in the current offset and exits ALIGN Mode.
In menus, saves option as displayed and advances user to next option or next action.
ALL GRAPHICS ON/OFF [ESC]
All
Graphics
On/Off
Esc
Ctrl +
Turns off the VIA-170 overlay (including menus) so that only the video image is
displayed. Pressing this key again, or any other function key, will turn on the VIA-170
overlay and display the markers as they were before pressing ALL GRAPHICS ON/
OFF.
This key is different from the OVERLAY [Home] key which allows users to view both
the image and markers without the cursor or active marker.
CTRL + POINTERS [F1] = Security Menu
Displays the Security Menu if users enter the correct password. Once the password is
entered, users may choose to turn ON or OFF the Marker Overlay Protect. Double
framed options are active. To change the selected option, highlight the option desired
48 - Marking
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and press ENTER. This new selection will become double framed and remain so until
changed. To save the new selections, highlight SAVE and press ENTER. Marker
Overlay Protect ON ensures that current markers cannot be erased or cleared except
with a password. All users will be able to change between overlays (1-10). All users will
be able to anchor and save additional markers over the protected overlay. However,
only the added markers can be erased or cleared from the overlay. Users can change
the color or alignment of the protected overlay. If password holders wish to add protected markers to a protected overlay, they may add the markers, enter the Security
Menu, and re-select Marker Overlay Protect ON, then SAVE. This will re-save the
protected overlay to include the added markers. Marker Overlay Protect OFF allows
all users to erase or clear all displayed markers. To change the password (or to enter a
password for the first time), select the CHANGE PASSWORD option. Another menu
appears which allows the user to enter the new password, confirm it, then SAVE or
CANCEL the change. NOTE: Selecting DELETE as the first character deletes the
password entirely. Pressing ENTER after a character signifies this that the entry is
complete (it is possible to have a password with less than eight characters). Once
saved, this new password must be used in order to enter the Security Menu again to
protect new markers or "un-protect" markers so that they can be erased. NOTE: If a
password is not entered into the system, an overlay can still be protected. However,
users will not need a password to enter the Security Menu. This method allows all
users to make purposeful changes to protected overlays, but avoids accidental erasures or changes. For Calibration Protection, refer to page 65.
RS-232 TRANSMIT [Print Screen]
RS-232
Transmit
Print Screen
Ctrl +
Transmits the active marker coordinates and/or active marker size, through an RS-232
serial port to a computer or ASCII terminal. The coordinates and/or marker size must
be displayed on screen in order to print. To select the desired display before printing,
press the SHOW MARKER SIZE/COORDINATES key combination CTRL + SCALES/
GRIDS [F2] and make a display selection. In ALIGN Mode, offset coordinates (in
pixels) and offset units (in calibrated units) will be transmitted if they are displayed.
CTRL + RS-232 TRANSMIT = Set RS-232
Displays the RS-232 Menu in which users set RS-232 parameters, including baud
rate (300, 600, 1200, 2400, 4800, 9600) and a terminator carriage return (return only,
or return plus line feed). The default settings are a baud rate of 9600 and a carriage
return + line feed. After entering the choices, select ENTER to save the changes or
select CANCEL to exit without saving changes. Users will be returned to the overlay
and mode they were in before setting print parameters. To program a computer to
accept the downloaded information, refer to Section Five: Communication.
#
Select
Calibr. #
Scroll Lock
Boeckeler VIA-170
SELECT CALIBRATION # [Scroll Lock]
Calls up the Select Calibration Menu in which operators select which preset calibration to use before sizing markers or before aligning markers in the ALIGN Mode. Users
will have a choice of 10 saved calibrations (#0 - #9). Units and labelling information for
each calibration number are also displayed in the menu to aid in quick selection.
If markers are being sized and users have selected to display marker size, the calibra-
Marking - 49
tion number selected will affect the resulting measurements. Also, if users are in the
ALIGN Mode, the calibration number will affect the offset distance display at the top of
the screen since this display utilizes calibrated units (the offset coordinates displayed
at the lower left of the screen reflects coordinates in pixels).
Ctrl +
SELECT CALIBRATION # [Scroll Lock] = Calibrate
Calls up a series of Calibration Menus which assist users in changing the calibration
of an overlay. First, select the desired overlay, then press the CTRL + SELECT
CALIBRATION # [Scroll Lock]. Follow instructions to position measuring lines and
enter XY values. Users are also given the opportunity to label the calibration with units,
magnification, ID# or any other label information. NOTE: Always calibrate using a
stage micrometer or other object of known size, and recheck calibrations. For accurate
line positioning and other calibration details, refer to Section 4: Video Measuring,
Calibration. Calibrations cannot be changed if they are protected (see page 66).
HELP [Pause/Break]
?
Help
Pause/
Break
Ctrl +
Activates the HELP Mode. Pressing HELP [Pause/Break], then any other key (or key
combination) will display information about the use of that key (or key combination).
Arrows in the upper right corner of the HELP screen indicate than an additional page
of HELP is available. Press the UP or DOWN POSITIONING key to access that page.
To exit HELP, press ENTER.
HELP [Pause/Break] = Demonstration of Features
Activates a demonstration of the VIA-170 features which may be useful in giving new
users an overall orientation on the product. The demonstration is brief. To cancel the
demonstration while in progress, press any function key. To pause the demonstration,
press the HELP [Pause/Break] key. To speed up certain portions of the demonstration, repeatedly press [Scroll Lock] until the desired feature is displayed. The demonstration will not fast forward while motion is displayed.
Alt +
ALT + I = Autointercept On/Off
Automatically closes the gap between endpoints of a drawn line when those endpoints
are fairly close together. This feature is desired when users are preparing to measure
the area of an image, which must be defined with a closed shape or closed freehand
drawing. Turning on the autointercept feature enables users to draw a shape without
concern for making a complete closure. When the drawing is nearly closed, and the
light pen is lifted away from the screen, the VIA-170 will automatically draw a line
connecting the two ends of the line, thus forming a shape. To turn off AUTOINTERCEPT, press ALT + I again. After turning on or off AUTOINTERCEPT, a brief message will be displayed as to whether the feature has been turned on or off.
50 - Marking
Boeckeler VIA-170
Section Four:
Video Measuring
Boeckeler VIA-170
Measuring - 51
52 - Measuring
Boeckeler VIA-170
OVERVIEW
It is important to understand some of the basic concepts about how the Measurement
Mode of the VIA-170 works in order to calibrate and use video measuring effectively.
All measurements performed with the VIA-170 are scalar numbers which are independent of units. In other words, a measurement displayed as X = 1.000 could represent
one inch, one millimeter or one micron. The decimal point functions merely as a place
holder and has no mathematical significance. The unit of measure is determined by the
device used for calibration.
To display a measurement, the VIA-170 performs several internal procedures. In simple
terms, the VIA-170 superimposes an invisible grid over the video image displayed on
the monitor. This grid, using NTSC standards, is 1024 elements wide (X direction) by
482 elements high (Y direction). For PAL and CCIR standards, the grid is 1024 by 512.
An individual element in the grid is called a pixel, which stands for picture element. The
vertical video measuring lines are four pixels wide, and the horizontal lines are two
pixels wide. Any one of the four measuring lines may be moved one pixel at a time.
When an operator positions the measuring lines against the edges of an object, the
VIA-170 counts the number of pixels between the measuring lines. This number is
multiplied by an internally generated constant called a scale factor. The product is
displayed as a measurement in the upper left-hand corner of the video screen. Each
measuring key's function is described in the next section, followed by step-by-step
instructions for calibrating and measuring.
Boeckeler VIA-170
Measuring - 53
THE MEASUREMENT MODE
Description
When operators press the XY MEASURE [F9] key, the ANGLES/CIRCLES [F10] key,
the COUNT [F11] key or the AREA/CHORDS [F12] key, the VIA-170 displays one of
10 different Measurement Modes, over the video image (refer to Figure 4.1). Each
mode includes the corresponding measuring lines or cursors and the measurement
data. The display of this data varies slightly depending upon the Measurement Mode
in use. A description of each of the nine measurement displays is given below.
The upper left of the screen:
54 - Measuring
X=
continuously displays the distance between the vertical measuring lines when in the X Mode.
Y=
continuously displays the distance between the horizontal
measuring lines when in the Y Mode.
X= Y=
continuously displays the distance between the vertical and
horizontal measuring lines when in the XY Mode.
D=
continuously displays the distance between the cross hairs
cursors when in the P-P Mode.
A=
displays the angle when defined by four points in the ANGLE
Mode.
R= C=
displays the radius and circumference of a circle when defined
by the three points in the CIRCLE Mode.
A=
displays the area of a closed shape when in the AREA/
CHORDS Mode.
D1= D2=
displays the short and long chords for a shape when in the
AREA/CHORDS Mode.
A(-J)=
displays the number of cells or particles counted when in the
COUNT Mode. The count is displayed for the tag selected
(A through J).
00:00:00.00
displays the elapsed time when in the TIMER Mode (either the
Timer w/ XY Measurement Mode, CTRL + [F10]; or Timer w/
Markers Mode, CTRL + [F12]).
Boeckeler VIA-170
The upper right of the screen:
continuously displays the calibration LABEL assigned to the
calibration, usually a reminder of the magnification or scale
used (100X, SCALE-5, etc.). Not present in COUNT Mode or
TIMER Mode.
Beneath is the calibration number (CAL 0 - 9) which was
selected for this Measurement Mode.
The upper center of the screen:
continuously displays the UNITS assigned to the calibration
(micron, inches, etc.)
The lower left of the screen (if in Measurement w/Statistics Mode):
continuously displays the current COUNT of measurements
entered in the Statistics Table and the current MEAN (or
average) of those measurements. Up to 500 measurements
can be entered into the table.
X = 066.72
Y = 024.10
Microns
500X
Cal 9
COUNT = 004
MEAN X = 066.28
MEAN Y = 025.47
Figure 4.1
The XY Measurement Mode, Statistics Mode Active
(shaded box represents image being measured)
Boeckeler VIA-170
Measuring - 55
USING THE MEASUREMENT KEYS
Highlighted in Figure 4.2 are the VIA-170 keyboard function keys used while in the
Measurement Mode. These measurement keys include keys which select one of ten
different Measurement Modes, set up ten different measurement calibrations, and
select the line pattern of measuring lines.
The Measurement Mode is entered anytime the XY MEASURE [F9], ANGLES/
CIRCLES [F10], COUNT [F11] or AREA/CHORDS [F12] keys are pressed, or if a
timer is activated (CTRL + [F11] or [F12]). If users are in the Marker Mode, pressing
any of the four measurement keys will automatically exit marking and enter measuring.
Only the anchored markers in the current overlay will be displayed on screen along
with the selected measuring lines or cursors. Calibration and measuring of the video
image can now take place.
Serving users in both the Measurement Mode and the Marker Mode are the action
keys (refer to Figure 4.2). In the Measurement Mode, these keys perform actions with
regard to the calibration and positioning of the measurement lines and cursors. Action
keys also move users through the ten stored marker overlays or assist in selecting one
of ten calibration numbers. Action keys also erase an anchored marker without exiting
the Measurement Mode. Users may also select to view the object being measured,
with or without the measuring lines, at the touch of an action key.
A general measuring procedure is given on the next page, followed by a description of
each measurement key function. Step-by-step procedures in calibrating and measuring
a video image follow these function key descriptions.
MARKER KEYS
(Graphics)
MEASUREMENT KEYS
MARKER KEYS
(Text/Numbers)
ACTION KEYS
Figure 4.2
VIA-170 Keyboard Controller
56 - Measuring
Boeckeler VIA-170
General Measuring Procedures
The following is a general procedure for measuring. Specific procedures for calibrating
and for measuring in each Measurement Mode are discussed in the following pages.
To measure an object in the field of view:
1. Calibrate the VIA-170 and check the calibration by measuring an object of
known size before critical measurements are begun. Refer to the calibration
procedures beginning on page 70.
NOTE: Operators will assign the calibration to one of ten different calibration
numbers (CAL#0-9) which are stored in the VIA-170. Each CAL# will be
accompanied by labels to remind users of units used, magnification, etc.
2. Measure the object in the field of view.
A. Select the desired marker overlay by pressing the PREV OVERLAY [Page
Up] key or NEXT OVERLAY [Page Down]. The measuring lines or cursors
will remain on screen with the selected marker overlay.
B. Press the XY MEASURE [F9] key, ANGLES/CIRCLES [F10] key, COUNT
[F11] key or the AREA CHORDS [F8] key. Press the key until the desired
Measurement Mode is displayed on screen. If measurements are to be
entered into the Statistics Table, press Measure w/ Statistics ALT+ [F9]
.
C. Select the desired line pattern by pressing the CTRL + XY MEASURE
[F9] for solid or dashed lines in X, Y or XY Modes. Selection is not
applicable to other Measurement Modes.
D. Press the SELECT CALIBRATION # [Scroll Lock] key and select CAL#.
E. Properly position the measuring lines or measuring cursors to measure the object in the field of view. Refer to the section on positioning
the lines, if needed, beginning on page 75.
NOTE: To obtain an AREA, operators anchor or draw a closed shape around
the object being measured, then press AREA/CHORDS [F12] to measure.
3. Note the displayed measurement reading in the upper left of the screen.
NOTE: To time an event while measuring, press CTRL + TIMER W/ XY
MEASUREMENT [F11]. Time is displayed in the lower right of the screen.
4. Store or transmit measurement, or enter measurement in Statistics Table.
A. To transmit via the RS-232 serial port for ASCII terminal or computer,
press the RS-232 TRANSMIT [Print Screen] key.
B. To enter measurement into Statistics Table, be sure you are in Measure
w/ Statistics Mode (ALT + [F9]), then press ENTER STATISTIC [Insert].
5. To exit measuring or begin marking, press any marker key.
Boeckeler VIA-170
Measuring - 57
Measurement Keys
XY MEASURE [F9]
XY
Measure
F9
Activates one of four different modes in which an operator may perform a dimensional
measurement. Each time this key is pressed, users will cycle to the next Measurement
Mode: X, Y, XY and P-P (point-to-point). To cycle backwards through the options press
the SHIFT + XY MEASURE [F9].
A brief description of each Measurement Mode is given below.
X
the distance between two vertical lines is continuously displayed.
Y
the distance between two horizontal lines is continuously displayed.
XY
the distance between two vertical lines and the distance between two
horizontal lines are continuously displayed.
P-P
the distance between two points is continuously displayed.
To measure XY dimensions in the Measure w/ Statistics Mode, select Measurement
Mode desired, then press MEASURE W/STATS, ALT + XY Measure [F9]. The Statistics Display will appear on screen along with the measurement lines or cursors.
Detailed XY Measurement procedures begin on page 79.
Ctrl +
CTRL + XY MEASURE [F9] = Change Line Pattern
Pressing the CTRL key together with the XY MEASURE [F9] will change the pattern of
measuring lines from solid to dashed, or from dashed to solid. This feature is designed
as a visual aid so that operators can more easily differentiate measuring lines from the
camera image or from the markers.
NOTE: The pattern selection only affects measuring lines in the X, Y or XY
Modes.
ALT +
ALT + XY MEASURE [F9] = Measure w/ Statistics
After entering the desired Measurement Mode (XY MEASURE, ANGLES/CIRCLES,
or AREA/CHORDS), users can choose to measure while displaying the average of
their measurements. This requires being in the Measure w/Statistics Mode, because
measurement procedures will include creating and maintaining a separately displayed
Statistics Table. Pressing the ALT key together with the XY MEASURE [F9] will
change the displayed Measurement Mode to a Measure w/ Statistics Mode. A
Statistics Display will appear on screen in the lower left corner, along with the measuring lines or cursors (refer to Figure 4.1, page 55). The additional display shows the
current COUNT of values that have been entered into the Statistics Table and the
current MEAN. "UNDEF" means there aren't enough measurements in the table to
warrant a calculation. "INVALID" means that measurements in the Statistics Table are
58 - Measuring
Boeckeler VIA-170
different than those displayed in the Measurement w/Statistics Mode (e.g., the user is
in the XY Measure w/ Statistics Mode and the table contains angle measurements).
After measuring, to enter the displayed measurement(s) into the Statistics Table,
press the ENTER STATISTIC [Insert] key. The Statistics Display will now read one
COUNT higher and the MEAN will incorporate the new value. To view the entire
Statistics Table or to edit it, press STATISTICS TABLE, ALT + S.
ANGLES/CIRCLES [F10]
x
x
x
x
x
Angles,
Circles
Activates one of two different modes in which an operator may perform either a measurement of an angle or a measurement of a circle. A brief description of the two
measurement modes is given below.
ANGLE
displays the angle when defined by at least four points (or at least two
points per line segment).
CIRCLE
displays the radius and circumference of a circle when defined by
at least three points.
F10
To measure angles or circles in the Measure w/Statistics Mode, enter the ANGLE or
CIRCLE Measurement Mode, then press ALT + XY Measure [F9]. The Statistics
Display will appear on screen along with the measurement cursors.
Detailed ANGLE/CIRCLE Measurement procedures begin on page 89.
Ctrl +
CTRL + ANGLES / CIRCLES [F10] = Clear Points
Clears points from a circle or angle measurement. An active cursor will remain, ready
to begin a new circle or angle. If in the Measurement w/Statistics Mode, be sure to
insert the displayed measurement in the Statistics Table before clearing points.
COUNT [F11]
1,
2,
3,
Count
F11
Boeckeler VIA-170
Activates the cell/particle counting mode. Each time this key is pressed, users will cycle
through to the next tag option (A-J). To cycle backwards through the options press the
SHIFT + COUNT [F11]. A brief description of the display options is given below.
A
displays the total number of cells/particles counted using the A tag.
B
displays the total number of cells/particles counted using the B tag.
C
displays the total number of cells/particles counted using the C tag.
D
displays the total number of cells/particles counted using the D tag.
etc.,
through J
displays the total number of cells/particles counted using the J tag.
Measuring - 59
Detailed COUNT Measurement procedures begin on page 98. NOTE: The Measurement w/Statistics Mode is not active in COUNT Mode. Also, unlike markers, when tags
are cleared, pressing UNDELETE, CTRL + Overlay [Home] will not retrieve cleared
tags. Undelete will only undelete the most recently anchored tag.
Ctrl +
CTRL + COUNT [F11] = Timer w / XY Measurement
Displays timer while users are in the XY Measurement Mode. Users can move measurement lines and drop cursors while the timer is running. A brief description of this
mode is given below.
00:00:00.0
the elapsed time is continuously displayed from the moment the
timer is activated to the moment it is stopped.
Detailed TIMER w/ XY Measurement procedures begin on page 107. NOTE: The
Measurement w/Statistics Mode is not active in TIMER Mode.
AREA/CHORDS [F12]
AREA,
CHORDS
F12
Activates one of three different options in which an operator may perform area and
chord measurement. Each time this key is presesed, users will cycle through to the
next area or chord option. To cycle backwards, press SHIFT + AREA/CHORDS [F12].
A brief description of each option is given below.
A
the area within any closed shape (drawing or marker).
D1
D2
the first distance defined by placing two end points.
the second distance defined by placing two end points.
When the desired option is selected, a preference arrow will appear immediately right
of the selected measurement display.
To measure areas or chords in the Measure w/ Statistics Mode, enter the AREA/
CHORDS Measurement Mode, select the desired option (A, D1 or D2), then press
MEASURE W/ STATISTICS, ALT + XY Measure [F9]. The Statistics Display will
appear on screen along with the measurement cursors.
Detailed AREA/CHORDS Measurement procedures begin on page 98.
Ctrl +
CTRL + AREA/CHORDS [F12] = Timer w/ Markers
Displays timer while users are in the Marker Mode. Users cannot change a marker
overlay while the timer is running. A brief description of this mode is given below.
00:00:00.0
the elapsed time is continuously displayed from the moment the
timer is activated to the moment it is stopped.
Detailed TIMER w/ MARKERS procedures begin on page 105. NOTE: The Measurement w/Statistics Mode is not active in TIMER Mode.
60 - Measuring
Boeckeler VIA-170
USING THE ACTION KEYS IN MEASURING
UP/DOWN POSITIONING KEYS
Positions a measuring line or cursor up or down one increment at a time. For fine
positioning, press the CTRL key together with the desired POSITIONING key.
Only one vertical measuring line and one horizontal line will be active, or positionable,
at a time. After one line or cursor is positioned, press the ENTER key to activate the
parallel line/cursor. Lines activated depend on which measuring mode operators are in.
X
With two vertical lines, the left line is active. Press ENTER and
the right line is active, instead. The UP/DOWN POSITIONING
keys have no affect on these lines.
Y
With two horizontal lines, the top line is active. Press ENTER
and the bottom line is active, instead. The UP/DOWN POSITIONING keys position these lines vertically.
XY
With two horizontal and two vertical lines, the top and left lines
are active. Press ENTER and the bottom and right lines are
active. The UP/DOWN POSITIONING keys position only the
horizontal lines.
P-P
With two cross hairs cursors, the left cursor is active. Press
ENTER and the right cursor is active. The UP/DOWN POSITIONING keys position each cursor vertically.
ANGLE
Pressing the UP/DOWN POSITIONING keys will position each
measuring point vertically on the screen.
CIRCLE
Pressing the UP/DOWN POSITIONING keys will position each
measuring point vertically on the screen.
COUNT
Pressing the UP/DOWN POSITIONING keys will position each
active tag vertically on the screen.
AREA/
CHORDS
TIMERS
Pressing the UP/DOWN POSITIONING keys will position each
active point vertically on the screen.
Pressing the POSITIONING keys (or any function key other
than ENTER) while in the TIMER W/XY MEASUREMENT
Mode has no affect. Pressing a POSITIONING key while in the
TIMER W/MARKERS Mode stops the timer if it is running.
When positioning is complete, measuring points in the AREA/CHORDS
AREA/CHORDS, COUNT and
ANGLES/CIRCLES Modes may be anchored. Unlike these points, measuring lines and
point-to-point cursors in the XY MEASURE Mode cannot be anchored. Therefore,
these are always positionable and cannot be erased. To quit placing these measuring
lines, operators may press any other function key to begin a new function.
Boeckeler VIA-170
Measuring - 61
LEFT/RIGHT POSITIONING KEYS
Positions a measuring line or cursor left or right one increment at a time. For fine
positioning, press the CTRL key together with the desired POSITIONING key.
Only one vertical measuring line and one horizontal line will be active, or positionable,
at a time. After one line/cursor is positioned, press the ENTER key to activate the
parallel line/cursor. Lines activated depend on which measuring mode operators are in.
X
With two vertical lines, the left line is active. Press ENTER and
the right line is active, instead. The LEFT/RIGHT POSITIONING keys position these lines horizontally.
Y
With two horizontal lines, the top line is active. Press ENTER
and the bottom line is active, instead. LEFT/RIGHT POSITIONING keys have no affect on these lines.
XY
With two horizontal and two vertical lines, the top and left lines
are active. Press ENTER and the bottom and right lines are
active. LEFT/RIGHT POSITIONING keys move only the
vertical lines.
P-P
With two cross hairs cursors, the left cursor is active. Press
ENTER and the right cursor is active. LEFT/RIGHT POSITIONING keys move each cursor horizontally.
ANGLE
Pressing the LEFT/RIGHT POSITIONING keys move each
active cursor horizontally on the screen.
CIRCLE
Pressing the LEFT/RIGHT POSITIONING keys move each
active cursor horizontally on the screen.
COUNT
Pressing the LEFT/RIGHT POSITIONING keys move each
active cursor horizontally on the screen.
AREA/
CHORDS
TIMERS
Pressing the LEFT/RIGHT POSITIONING keys move each
active cursor horizontally on the screen.
Pressing the POSITIONING keys (or any function key other
than ENTER) while in the TIMER W/ XY MEASUREMENT
Mode has no affect. Pressing a POSITIONING key while in the
TIMER W/MARKERS Mode stops the timer if it is running.
When positioning is complete, measuring points in the AREA/CHORDS
AREA/CHORDS, COUNT and
ANGLES/CIRCLES Modes may be anchored. Unlike these points, measuring lines and
point-to-point cursors in the XY MEASURE Mode cannot be anchored. Therefore,
these are always positionable and cannot be erased. To quit placing these measuring
lines, operators may press any other function key to begin a new function.
62 - Measuring
Boeckeler VIA-170
ENTER STATISTIC [Insert]
While in a Measure w/ Statistics Mode
Mode, enters the displayed measurement into the
Table, undeletes a deleted statistic. NOTE: Users
Statistics Table. In the Statistics Table
will be able to enter measurements that were made using different calibrations. Be sure
that measurements entered are compatible with those already in the table.
In menus, does not affect cursor. Use ENTER key to select option.
OVERLAY [Home]
Removes the measurement overlay from the screen so that only the anchored markers in the current overlay are visible. This option may be desired before making a
video copy. To regain a measurement overlay, press the desired measurement key.
Ctrl +
CTRL + OVERLAY [Home] = Undelete
Restores recently deleted marker to its original location on the overlay, even while the
in a Measurement Mode. If markers were recently cleared, pressing Undelete, CTRL
+ OVERLAY [Home], restores the full overlay of markers. In a protected overlay,
Undelete only affects added markers. Undelete does not affect protected markers.
PREV OVERLAY [Page Up]
Displays the previous overlay and any markers stored in that overlay, along with the
current measuring lines or cursors (measuring points in ANGLES/CIRCLES Mode will
be erased). Pressing this key repeatedly will continue to display each previous overlay
in descending order, along with the current measuring lines. The number of each new
overlay will appear briefly at the bottom right corner of the screen (#1-#10).
These overlays cannot take on new markers while in the current Measurement Mode.
However, markers may be erased in the Measurement Mode (refer to the UNDO and
CLEAR functions descriptions which follow). To create new markers in an overlay,
press any marker function key. The measurement lines will disappear and marking
functions will begin. After marking, press the desired Measurement Mode key to recall
the measuring lines or cursors last used.
UNDO [Delete]
Pressing UNDO [Delete] while in XY MEASURE Mode will erase anchored markers
one at a time, beginning with the most recently anchored marker. The measurement
overlay will remain on screen during this process. In the COUNT Mode, pressing this
key erases count tags (A, B, C, etc.) one at a time, beginning with the most recently
anchored tag. Pressing this key in CIRCLES / ANGLES Mode or AREA/CHORDS
Mode will erase both a marker and all the measuring points. In a protected marker
overlay, UNDO only affects added markers. UNDO does not affect protected markers
(refer to page 47). In the Statistics Table, deletes a statistic from the table.
Boeckeler VIA-170
Measuring - 63
CLEAR [End]
In the XY Measurement Modes, pressing this key will clear all the markers at once,
but not the measuring lines or cursors. A warning message will appear on screen to
avoid an unintentional erase. Press ENTER to confirm a full erase or press any key to
exit the procedure without erasure. Measuring lines and measurement displays will
remain on screen during this process. Protected markers will not be cleared.
In the ANGLES/CIRCLES Mode and AREA/CHORDS Mode, pressing CLEAR [End]
will not only clear the screen of all markers, but will also clear the measurement cursors
so that operators may quickly begin a new calculation. Protected markers will not be
cleared.
In the COUNT Mode, pressing CLEAR [End] gives users the option to clear all the
tags and set all counts to zero, or to clear only the tags while retaining the current
counts. A warning message will appear on screen to avoid an unintentional erase.
To undelete a screen of recently cleared markers in all Measurement Modes except
COUNT, press CTRL + OVERLAY [Home]. In COUNT, this key combination undeletes
the most recently erased tag only.
Ctrl +
CTRL + CLEAR [End] = Clear Offset Created in Align Mode
Clears the offset (alignment) of markers in the current overlay even while users are in
a Measurement Mode. A warning message will appear on screen to avoid an unintentional clear. Offset coordinates will return to the default position (X=0, Y=0).
A protected overlay can be cleared of its alignment. Protection ensures that certain
markers cannot be erased or cleared.
NEXT OVERLAY [Page Down]
Advances users to the next overlay and any markers stored in that overlay, along with
the current measuring lines or cursors (measuring points in ANGLES/CIRCLES Mode
will be erased). Pressing this key repeatedly will continue to display the next overlay in
ascending order, along with the current measuring lines. The number of each new
overlay will appear briefly at the bottom right corner of the screen.
These overlays cannot take on new markers while in the current Measurement Mode.
However, markers may be erased in the Measurement Mode (refer to the UNDO and
CLEAR functions above). To create new markers in an overlay, press any marker
function key. The measurement lines will disappear and marking functions will begin.
After marking, press the desired Measurement key to recall measuring lines last used.
¿
64 - Measuring
ENTER
In measuring, activates a measuring line or cursor for positioning. Pressing it again
activates the parallel line or second cursor. In COUNT Mode, anchors a tag.
Boeckeler VIA-170
In CIRCLES/ANGLES Mode, anchors a point. In menus, saves option as displayed
and advances user to next option or next action.
Ctrl +
CTRL + POINTERS [F1] = Security Menu
Displays the Security Menu if user enters the correct password. If there is no password, user will advance to Security Menu. Once in the Security Menu, user may
choose to turn ON or OFF the Calibration Protect feature. Double framed options are
active. To change the selected option, highlight the option desired and press ENTER.
This new selection will become double framed and remain so until changed. To save
selections, highlight SAVE and press ENTER. Calibration Protect ON ensures that
calibrations cannot be altered except with a password. All users will be able to change
between calibration #'s (0-9). Calibration Protect OFF makes all calibrations susceptible to being changed.
To change the password (or to enter a password for the first time), select the CHANGE
PASSWORD option. A second menu appears which allows the user to enter the new
password, confirm it, then SAVE or CANCEL the new password. NOTE: Selecting
DELETE as the first character deletes the password entirely. Pressing ENTER after a
character signifies that the entry is complete (it is possible to have a password with less
than eight characters). Once saved, this password must be used in order to be able to
change protected calibrations, or to enter the Security Menu. NOTE: If a password is
not entered into the system (e.g., deleted), calibrations can still be protected. However,
users will not need a password to enter the Security Menu. This method allows purposeful changes to protected calibrations, but not accidental changes. For instructions
on Marker Overlay Protect, refer to page 49.
ALL GRAPHICS ON/OFF [ESC]
All
Graphics
On/Off
Esc
Turns off the VIA-170 marker overlay, measurement overlay, or menu so that only the
video image is displayed.
Pressing this key again, or any other key, will turn on the VIA-170 overlay and display
the measuring lines, data and markers as they were before pressing ALL GRAPHICS
ON/OFF [Esc].
Different from the OVERLAY [Home] key which allows users to view both the image
and the anchored markers. Measuring lines, cursors and active markers will not be
displayed.
RS-232 TRANSMIT [Print Screen]
RS-232
Transmit
Print
Screen
Boeckeler VIA-170
Pressing this key transmits the displayed measurements through an RS-232 serial port
to a computer or ASCII terminal. The measurements must be displayed on screen in
order to print, so operators must be in a Measurement Mode. The results of each
measurement may be transmitted whether in the XY MEASURE, ANGLES/CIRCLES,
COUNT, AREA/CHORDS or either of the TIMER Modes.
If in a Measure w/Statistics Mode, the Statistics Summary (current mean, standard
Measuring - 65
deviation, low value, high value, and range) is transmitted, along with the displayed
measurement. In the RS-232 Setup Menu, users have the option to transmit the
summary only or the summary plus all of the entered statistics.
Ctrl +
CTRL + RS-232 TRANSMIT = Set RS-232 Parameters
Displays the RS-232 Menu in which users set RS-232 parameters, including baud rate
(300, 600, 1200, 2400, 4800, 9600), terminator carriage return (return only, or return
plus line feed), and how to send statistics (summary only or summary with all statistics).
The factory settings are a baud rate of 9600, a carriage return + line feed, and sending
the summary of statistics only.
After entering the choices, select ENTER to save the changes or select CANCEL to
exit without saving changes. To program a computer to accept the downloaded information, refer to Section Five: Communication.
SELECT CALIBRATION # [Scroll Lock]
#
Select
Calibr. #
Scroll Lock
Calls up the Select Calibration Menu in which operators select which preset calibration to use before measuring. Users will have a choice of 10 saved calibrations (#0 #9). Units and labelling information for each calibration number are also displayed in
the menu to aid in quick selection.
A CAL# may be selected before entering a Measurement Mode or while in a Measurement Mode (or Measurement w/Statistics Mode). In any case, the CAL# should
be selected before measuring takes place since the measurement results are dependent upon the calibration used.
Some operators will use more than one CAL# on a single measurement. For example,
users may have calibrated CAL#8 in inches and CAL#9 in metric units (millimeters,
microns, etc.), thus two calibrations may be used as a means to convert a single
measurement into other units of measure. While the measurement display is in the
upper left of the screen, the CAL # is shown in the upper right of the screen along with
any label information that was entered during calibration.
If in the Measure w/Statistics Mode, users may change the CAL# as above, and enter
values into the Statistics Table using the new CAL#. WARNING: Users will be able to
enter measurements that were made using different calibrations. Be sure that measurements entered are compatible with those already in the table. A warning message
will only appear if values being entered into the table are from a different Measurement Mode than those already in the table (e.g., XY measurements -vs- angle measurements). The warning message will offer users the opportunity to clear the table of
current values and enter the new value, or to proceed measuring without entering new
values in the table.
Ctrl +
SELECT CALIBRATION # [Scroll Lock] = Calibrate
Calls up a series of Calibration Menus which assist users in changing the calibration
of an overlay. If calibrations are protected, a message will appear briefly on screen
66 - Measuring
Boeckeler VIA-170
reminding users "Calibrations are protected." To change a calibration, the password
holder will need to enter the Security Menu, turn Calibration Protect OFF, SAVE this
selection, then exit the menu. If there is no password, any user can enter the Security
Menu to make this selection. Now calibrations can be changed.
Once in the Calibration menu, select the desired marker overlay, then press the CTRL
key together with the SELECT CALIBRATION # [Scroll Lock] key. Follow instructions
to position measuring lines and enter XY values. Users are also given the opportunity
to label the calibration number with units, magnification, ID# or any other label information. NOTE: Always calibrate using a stage micrometer or other object of known size,
and recheck calibrations. For accurate line positioning and other calibration details,
refer to Section 4: Video Measuring, Calibration.
After storing the new calibration, the VIA-170 will return operators to the measurement
or marker overlay that displayed before entering the calibration mode. Detailed calibration procedures begin on page 70.
HELP [Pause/Break]
?
Help
Activates the HELP Mode. Pressing HELP [Pause/Break] then any other key (or key
combination) will display information about the use of that key. Arrows in the upper
right corner of the HELP screen indicate than an additional page of HELP is available.
Press the UP or DOWN POSITIONING key to access that page. To exit HELP, press
ENTER. If users are in a menu, they should exit the menu before accessing HELP.
Pause/
Break
Ctrl +
HELP [Pause/Break] = Demonstration of Features
Activates a demonstration of the VIA-170 features which may be useful in giving new
users an overall orientation on the product. The demonstration is brief. To cancel the
demonstration while in progress, press any function key. To pause the demonstration,
press the HELP [Pause/Break] key. To speed up certain portions of the demonstration, repeatedly press SELECT CALIBR. # [Scroll Lock] until the desired feature is
displayed. The demonstration will not fast forward while the screen is displaying
motion.
TEXT/NUMBER KEYS
In the Select Calibration Menu, numbers 0 through 9 may be typed in the NEW
CALIBRATION # option box.
NOTE: The numeric keypad on the far right of the keyboard can be activated
by pressing the NUM LOCK key.
In the second Calibration Menu, users may type alphanumeric characters to label the
calibration # with units and any other calibration information.
In ANGLES Mode, pressing the SPACE BAR ends the definition of the first leg of an
Boeckeler VIA-170
Measuring - 67
angle, so that users can begin defining the second leg (and vice versa).
In some menus, repeatedly pressing the SPACE BAR cycles through the available
options. The option displayed can then be selected by pressing ENTER.
Alt +
ALT + A = Show/Hide Angle While Measuring Angles
Toggles on and off the VIA-170 angle display shown while users define an angle.
Turning on the angle display can help users align each leg of the angle against the
object in the field of view. Turning off the display may be preferred when users need an
unobstructed view of the video image being measured.
NOTE: If users have placed the first leg of the angle and are defining the
second leg of the angle when they turn on or off the display, the new display
will affect only the second leg.
Alt +
ALT + C = Show/Hide Circle While Measuring Circles
Toggles on and off the VIA-170 circle display shown while users define a circle. Turning on the circle display can help users visualize the circle or arc being measured.
Turning off the display may be preferred when users need an unobstructed view of the
video image being measured.
NOTE: If users have placed the first leg of the angle and are defining the
second leg of the angle when they turn on or off the display, the new display
will affect only the second leg.
Alt +
ALT + D = Clear Statistics Table
Clears the Statistics Table of all entered values. Users may clear the table from any
mode, measuring or marking. A warning message will appear to avoid an unintentional
clear.
Alt +
ALT + S = Statistics Table
Displays the Statistics Table and all values (if any) that were entered while in a
Measure w/Statistics Mode. If the table is empty of entries, values will be displayed
"UNDEF" for undefined. This table may be accessed from any mode, although it only
reflects values entered from a Measure w/Statistics Mode.
The Statistics Summary (refer to Figure 4.3) is at the top of the table and displays the
COUNT or the total number of active values entered in the table. The MEAN is the sum
of all the active values divided by the COUNT. ST DEV (Standard Deviation) is a
measure of the variability of the data. RANGE is the difference between the HI (highest) and LO (lowest) active values. This area cannot be edited, although it can change
as values are added, deleted, undeleted or cleared from the table.
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Boeckeler VIA-170
Statistics Table
MEAN:
ST DEV:
LO:
HI:
RANGE:
DEL #
001
002
003
005
005
006
007
008
PREV
R
0041.2
0000.4
0040.8
0041.6
0000.8
0041.2
0041.6
0040.8
UNDEF
UNDEF
UNDEF
UNDEF
UNDEF
C
0258.6
0002.5
0256.0
0261.1
0005.1
0258.7
0261.1
0256.0
UNDEF
UNDEF
UNDEF
UNDEF
UNDEF
EXIT
NEXT
Figure 4.3
The Statistics Table
for Circle Measurement
(Radius, Circumference)
To delete a value, highlight the value and press DELETE [Undo]. To undelete a value,
highlight the value and press ENTER STATISTIC [Insert]. To clear all values, press
CLEAR STATISTICS TABLE, ALT + D.
Up to 500 values can be stored in the Statistics Table. To view the next page of
values, highlight the NEXT option and press ENTER. To view the previous page of
values, highlight the PREV option and press ENTER. To exit the Statistics Table,
highlight the EXIT option and press ENTER.
Statistics are transmitted by entering the desired Measure w/ Statistics Mode, then
pressing the RS-2323 TRANSMIT [Print Screen] key. To select whether all statistics
get printed or just the Statistics Summary, press CTRL + RS-232 [Print screen].
WARNING: Users will be able to enter measurements that were made using different
calibrations. Be sure that measurements entered are compatible with those already in
the table. A warning message will only appear if values being entered into the table are
from a different Measurement Mode than those already in the table (e.g., XY measurements -vs- angle measurements). This warning message will offer users the opportunity to clear the table of current values and enter the new value or to proceed measuring without entering new values in the table.
Shift +
SHIFT + Function Key = Reverse Toggle
Allows users to cycle backwards through the available choices. Measurement functions
keys with which SHIFT can be used include XY MEASURE [F9] and COUNT [F11].
Boeckeler VIA-170
Measuring - 69
CALIBRATION
The basic concept behind calibration is simple. The operator places an object of known
size in the field of view of the camera, positions measuring lines against its edges, and
enters the object’s dimensions on the screen. The VIA-170 then calculates a scale
factor, and calibration is complete. Although the calibration process is easy, subsequent
measurement errors may occur if an operator does not adhere to the calibration procedures which follow.
As discussed in the Overview on page 53, the video measuring lines move within a grid
which is, for NTSC standards, 1024 pixels wide by 482 pixels high (or, for CCIR and
PAL standards, 1024 pixels wide by 512 pixels high). In other words, a vertical measuring line may be positioned in any one of 1024 locations from left to right on the screen.
Similarly, a horizontal line has 482 potential locations from top to bottom.
The VIA-170 maintains a continuous count of the number of pixels between the measuring lines. Measurements are internally calculated by multiplying the number of pixels
counted between the lines by a scale factor. The scale factor is equal to the amount the
measurement value changes when one measuring line is moved one pixel. For example, if the screen initially displayed X = 0.2000 and then displayed X = 0.2005 after
one measuring line was moved one pixel, then the scale factor would be five (5). Thus,
in this example every time a measuring line is moved one pixel, the measurement will
change by an increment of five.
During calibration, operators position the measuring lines and then manually enter the
values for the X and Y axes. The VIA-170 divides the value for each axis by the number
of pixels between the measuring lines. The result is then stored as the new scale factor.
For example, if an operator entered the value X = 4.0000 and the VIA-170 counted 400
pixels between the measuring lines, then the resulting scale factor would be 100. If the
operator then moved the lines apart by one more pixel, the measurement would read X
= 4.0100. The decimal point is positioned by the operator and has no mathematical
significance.
The internally calculated scale factor discussed above should not be confused with the
calibration number (CAL#) which is a label displayed in the upper right-hand corner of
the measurement screen. This label allows the operator to assign a different number to
each calibration. A maximum of ten different calibration numbers may be stored. Also
displayed in the upper right corner is the calibration label. Typically, calibration labels
serve as reminders of the power of magnification (if any) used during calibration.
Calibration numbers and calibration labels do not affect measurement calculations in
any way.
The calibration of the VIA-170 is valid only for a particular measurement situation.
Recalibration is required if the focal distance or any other parameter is changed. If
operators are using the VIA-170 in a permanent installation where the field of view is
fixed, then the set up and calibration numbers stored in the unit may be used again and
again without recalibration.
70 - Measuring
Boeckeler VIA-170
General Calibration Procedures
Calibration for all Measurement Modes can be completed most efficiently in XY
Measurement Mode. It is for this reason that the VIA-170 is programmed to help users
calibrate using both horizontal and vertical measurements. Since many VIA-170
applications include a video system attached to a microscope, the calibration procedure described herein utilizes a stage micrometer. Calibration may be performed,
however, by placing any object of known size within the field of view of the camera.
The particular object used for calibration should be chosen with attention to the specific
application for which the VIA-170 is being used.
To calibrate the VIA-170:
1. Place a stage micrometer (or another object of known size) in the field of view of
the camera.
2. On the VIA-170 keyboard controller, press the CTRL + SELECT CALIBRATION #
[Scroll Lock] key combination.
The First Calibration Menu will appear along with the image of the stage
micrometer. The menu will display two horizontal measuring lines, two
vertical measuring lines and initial instructions (refer to Figure 4.4). If
calibrations are protected, the password holder will need to enter the
Security Menu to turn Calibration Protect OFF. Otherwise, calibrations
cannot be changed.
3. Position the measuring lines along the edges of the stage micrometer.
NOTE: For greater accuracy in calibration refer to the section on positioning lines which follows these procedures. Remember that the stage micrometer should fill 75% to 80% of the screen.
Position the lines for calibration,
then press the space bar to continue.
Press delete to cancel calibration.
Figure 4.4
First Calibration Menu
Boeckeler VIA-170
Measuring - 71
4. Press the space bar to continue calibration.
The Second Calibration Menu will appear along with the image of the
stage micrometer. This menu will display an X and a Y measurement value
at the top of the screen (refer to Figure 4.5). Brief instructions are included
to assist in this step of calibration.
X = 07.170
Enter
X and Y
Y = 02.990
Delete Key
Cancels
Space Bar
Moves Dec. Pt.
Figure 4.5
Second Calibration Menu
5. Before entering X and Y dimensions, select the position of the decimal point by
pressing the SPACE BAR on the keyboard controller.
The decimal point position is not independent for each axis. Positioning the
decimal point in X automatically positions it at the same place in Y.
Each time the SPACE BAR key is pressed, the decimal point will move one
place. When it reaches the end of a cycle, the decimal point wraps around to
the left. The maximum possible number of decimal places is five.
NOTE: In order to achieve the highest possible resolution without overflowing
the total number of digits possible in a subsequent measurement, it is recommended that the calibration number be placed as a whole number as far as
possible to the left of the decimal point. For example, if the X measurement of
the micrometer stage is .001 inches (1 millimeter), operators would enter
1.0000 rather than .00100. That way, when a measurement reaches four times
that of the stage, a reading of 4.0000 can be easily displayed. Likewise, when
a measurement is made which is many times smaller than the stage, operators
will receive very resolute readings, down to one ten-thousandths of the stage
measurement.
6. On the keyboard controller, press any number key(s) to enter or change the
value of the X (horizontal) dimension.
72 - Measuring
Boeckeler VIA-170
Operators may press the backspace key to overwrite a previously entered digit.
To bypass any entry which operators do not wish to change, press the ENTER
key until the cursor cycles through to the desired entry line.
Once values for the last digit in the X-axis are correct, the cursor will automatically move to the next line, ready for vertical (Y-axis) dimension entry.
7. Repeat step #6 to change the values for the Y (vertical) dimension until all the
digits reflect values corresponding to the known horizontal and vertical dimensions
of the stage micrometer.
8. Once the values and decimal point placements are correct, press ENTER.
The Third Calibration Menu will appear displaying units, label, and calibration
number options (refer to Figure 4.6).
9. Press the text or number keys to enter the UNITS ascribed to the calibration
(mils, microns, inches, etc.).
Operators may press the backspace key to overwrite a previously entered
character. Operators may use up to 10 characters for the UNITS entry.
Once 10 characters for UNITS are entered the cursor will automatically move
to the next line, ready for LABEL entry. If less than 10 characters are used,
press ENTER to proceed to the LABEL entry line.
10. Press the text or number keys to enter the LABEL information ascribed to the
calibration.
This LABEL is often used to signify magnification, such as 1000X, 100X, etc.
Operators may use up to 10 characters for the LABEL entry. The label serves
only as a reminder of the scale factor (or magnification) corresponding to the
current calibration. This label has no impact upon actual measurements
X = 07.170
UNITS = Microns
Y = 02.990
LABEL = 500X
CALIBRATION 9
CANCEL
SAVE
Figure 4.6
Third Calibration Menu
Boeckeler VIA-170
Measuring - 73
performed. Once 10 characters for LABEL are entered, the cursor will automatically move to the next line, ready for CALIBRATION # entry. If less than
10 characters are used, press ENTER to proceed to the LABEL entry line.
11. Press ENTER to save the changes under the displayed CAL# or press the
SPACE BAR or any number key to change the displayed CAL#.
NOTE: All of the calibration data will be stored to the CAL# that is displayed in this menu.
12. Select SAVE to save all calibration settings in the VIA-170 memory or select
CANCEL to cancel calibration procedures.
Operators will be automatically returned to the Measurement Mode or
marker overlay they were in before beginning the calibration procedure.
13. Before making critical measurements, be sure to check the X-axis and Y-axis
calibration by measuring an object of known size.
NOTE: If an error message appears, please refer to the Troubleshooting
Guide in Section Six: Appendices.
14. Once calibration has been checked, a password holder may protect it from accidentally being changed by other users. To protect calibrations, enter the Security
Menu, CTRL + POINTERS [F1], and select Calibration Protect ON.
74 - Measuring
Boeckeler VIA-170
Positioning the Lines
To ensure that accurate measurements may be obtained after calibration, operators
must pay particular attention to the manner in which they position the video measuring
lines during calibration. The vertical measuring lines are four pixels thick and the
horizontal measuring lines are two pixels thick. If the lines are not properly positioned,
the line widths may create measurement errors.
Operators must position the inside edges of the video measuring lines to the same
edges (e.g. both left-hand edges or both top edges) of the graduation marks (see
Figure 4.6). If operators fail to do so, the calibration will be incorrect.
Assume an operator followed the correct calibration procedure and positioned the
inside edges of the measuring lines to both left-hand edges of the graduation marks on
a stage micrometer. The operator then entered a value of X = 0.2250. If there were 450
pixels between the two measuring lines, then the VIA-170 would calculate a scale
factor of five (5), giving an increment of 0.000 5 per pixel.
In the same scenario, if the operator incorrectly used the outside edges of the measuring lines for positioning, then the VIA-170 would count only 448 pixels between the
measuring lines. The resulting scale factor would be 5.0223, yielding an increment of
0.000 502 23 per pixel. This scale factor would result in a 0.5% error in measurement.
During the following procedure to establish calibration, it is important to focus the
camera to obtain the sharpest possible image of the stage micrometer. Do not be
concerned with other objects in the field of view.
Boeckeler VIA-170
Measuring - 75
To position the lines in the X-axis:
1. Orient the stage micrometer so that its graduation marks are parallel to the
vertical measurement lines.
2. If using a knob controller, place the AXIS switch in the X position and set the
COMPARE switch to the OFF position.
3. Using the keyboard POSITIONING KEYS or an optional controller, position the
inside edge of the left measurement line to the left edge of the selected
graduation mark on the stage micrometer (see Figure 4.7).
4. Position the inside edge of the right measurement line to the left edge of a
second selected graduation mark on the stage micrometer (see Figure 4.7).
The right-hand measurement line will overlap the graduation mark.
Inside Edges of
Measurement Lines
Left Edges of
Graduation Marks
VIA-170 Measurement Lines
Stage Micrometer Lines
Figure 4.7
Calibration: X-axis Line Placement
76 - Measuring
Boeckeler VIA-170
To position the lines in the Y-axis:
1. Orient the stage micrometer so that its graduation marks are parallel to the
horizontal measurement lines.
2. If using a knob controller, place the AXIS switch in the Y position.
3. Using the keyboard controller POSITIONING KEYS or optional controller, position
the lower edge of the top measurement line to the top edge of the selected
graduation mark on the stage micrometer (see Figure 4.8).
4. Position the upper edge of the bottom measurement line to the top edge of a
second selected graduation on the stage micrometer (see Figure 4.8).
The bottom measurement line will overlap the graduation mark.
The final process in calibration is entering the actual dimensions of the known standard.
Keep in mind that the dimensions the VIA-170 displays on screen are scalar numbers,
i.e., they are independent of units.
Lower Edge of
Top Measurement Line
Top Edges of
Graduation Marks
Upper Edge of
Bottom Measurement Line
VIA-170 Measurement Lines
Stage Micrometer Lines
Figure 4.8
Calibration: Y-axis Line Placement
Boeckeler VIA-170
Measuring - 77
MEASURING
Basic Operation
Before performing any measurements, the VIA-170 must first be calibrated or all
measurements will be meaningless.
The VIA-170 measuring functions allow operators to measure objects within the field of
view in both the X and Y axes and between any two points. Calibration in the XY Mode
is required for any measurements in the XY MEASURE Mode, the ANGLES/CIRCLES
Mode and in the AREA/CHORDS Mode. Measurements for all modes are continuously
displayed in the upper left-hand corner of the screen.
78 - Measuring
Boeckeler VIA-170
X-Axis Measurement
To measure in the X Mode:
1. On the keyboard controller, press the XY MEASURE [F9] key.
2. If needed, sequence through each of the four Measurement Modes until two
vertical lines are displayed over the video image (refer to Figure 4.9).
This is the X Measurement Mode.
X = 032.95
MICRONS
500X
Cal 9
Figure 4.9
X Measurement Mode
3. If measurements will be used in statistical calculations, press MEASURE W/
STATS, ALT + XY MEASURE [F9].
The Statistics Display with the current COUNT and MEAN will appear in
the lower left corner of the screen, along with the measuring lines. If the
current MEAN is INVALID, this means that there are measurements in the
Statistics Table that are incompatible with X Mode measurements. To
clear the Statistics Table, press CLEAR STATS, ALT + D.
4. Select the desired line pattern (dashed or solid) by pressing the CTRL +
XY MEASURE [F9] key combination.
5. If not already selected, select the desired calibration number by pressing the
SELECT CALIBRATION # [Scroll Lock] key.
The Select Calibration # Menu will appear on screen. Follow instructions to
select the desired CAL#. Operators will be automatically returned to the X
Measurement Mode and the selected CAL# will be displayed in the upper
right corner of the screen.
Boeckeler VIA-170
Measuring - 79
6. To measure the object in view:
A. Align the left measurement line along the left perimeter of the object
to be measured. Align the right measurement line along the right
perimeter of the object (refer to Figure 4.10).
B. Be certain to position the inside edges of the measuring lines against
the object to be measured. Refer to Positioning the Lines in the Calibration section of this manual.
The distance between the two vertical measurement lines will continuously be
displayed in the upper left-hand corner of the video screen.
X = 062.24
MICRONS
500X
Cal 9
Figure 4.10
Positioning the X-Axis Measuring
Lines against Sample Image
To perform comparison measurements in X Mode:
1. Position each measuring line at a fixed distance apart.
2. If operators have an optional knob controller, set the COMPARE switch to the ON
position. Rotate the right knob to move the measuring lines in unison.
3. If operators have an optional joystick controller, tilt the joystick left or right to
move the measuring lines in unison.
By positioning the pair of measuring lines at different locations on the screen,
operators may quickly determine whether or not objects in the field of view
meet size specifications.
80 - Measuring
Boeckeler VIA-170
To enter the displayed X value into the Statistics Table:
1. From the Measure w/ Statistics Mode, press the ENTER STATISTIC [Insert]
key.
The Statistics Display will now read one COUNT higher and the MEAN
will incorporate the new value. To view the entire Statistics Table or to
edit it, press STATISTICS TABLE, ALT + S.
WARNING: Users will be able to enter measurements that were made using
different calibrations. Be sure that measurements entered are compatible with
those already in the table. A warning message will appear only if values being
entered into the table are from a different Measurement Mode than those
already in the table.
To quit measuring or comparing in X Mode:
1. If using the optional knob controller, place the COMPARE switch in the OFF
position.
2. On the keyboard controller, press any function key.
Measuring lines will disappear and operators will have exited the X Measurement Mode.
Y-Axis Measurement
To measure in the Y Mode:
1. On the keyboard controller, press the XY MEASURE [F9] key.
2. If needed, sequence through each of the four Measurement Modes until two
horizontal lines are displayed over the video image (refer to Figure 4.10).
This is the Y Measurement Mode.
3. If measurements will be used in statistical calculations, press MEASURE W/
STATS, ALT + XY MEASURE [F9].
The Statistics Display with the current COUNT and MEAN will appear in
the lower left corner of the screen, along with the measuring lines. If the
current MEAN is INVALID, this means that there are measurements in the
Statistics Table that are incompatible with Y Mode measurements. To
clear the Statistics Table, press CLEAR STATS, ALT + D.
4. Select the desired line pattern (dashed or solid) by pressing the CTRL +
XY MEASURE [F9] key combination.
Boeckeler VIA-170
Measuring - 81
Y = 019.64
MICRONS
500X
Cal 9
Figure 4.11
Y Measurement Mode
4. If not already selected, select the desired calibration number by pressing the
SELECT CALIBRATION # [Scroll Lock] key.
The Select Calibration # Menu will appear on screen. Follow instructions to
select the desired CAL#. Operators will be automatically returned to the Y
Measurement Mode, and the selected CAL# will be displayed in the upper
right corner of the screen.
5. To measure the object ine view:
A. Align the top measurement line along the top perimeter of the object
to be measured. Align the bottom measurement line along the
bottom perimeter of the object (refer to Figure 4.11).
B. Be certain to position the inside edges of the measuring lines against
the object to be measured. Refer to Positioning the Lines in the
Calibration section of this manual.
The distance between the two horizontal measurement lines will continuously
be displayed in the upper left-hand corner of the video screen.
To perform comparison measurements in Y Mode:
1. Position each measuring line at a fixed distance apart.
2. If operators have an optional knob controller, set the COMPARE switch to the ON
position. Rotate the left knob to move the measuring lines in unison.
3. If operators have an optional joystick controller, tilt the joystick forward or
82 - Measuring
Boeckeler VIA-170
Y = 028.56
MICRONS
500X
Cal 9
Figure 4.12
Positioning the Y-axis Measurement Lines
backward to move the measuring lines in unison.
By positioning the pair of measuring lines at different locations on the screen,
operators may quickly determine whether or not objects in the field of view
meet size specifications.
To enter the displayed Y value into the Statistics Table:
1. From the Measure w/ Statistics Mode, press ENTER STATISTIC [Insert].
The Statistics Display will now read one COUNT higher and the MEAN
will incorporate the new value. To view the entire Statistics Table or to
edit it, press STATISTICS TABLE, ALT + S.
WARNING: Users will be able to enter measurements that were made using
different calibrations. Be sure that measurements entered are compatible with
those already in the table. A warning message will appear only if values being
entered into the table are from a different Measurement Mode than those
already in the table.
To quit measuring or comparing in Y Mode:
1. If using the optional knob controller, place the COMPARE switch in the OFF
position.
2. On the keyboard controller, press any function key.
Measuring lines will disappear and operators will have exited the Y
Measurement Mode.
Boeckeler VIA-170
Measuring - 83
X and Y Measurement
To measure in the XY Mode:
1. On the keyboard controller, press the XY MEASURE [F9] key.
2. If needed, sequence through each Measurement Mode until two horizontal
lines and two vertical lines are displayed over the video image (refer to Figure
4.13).
This is the XY Measurement Mode. At this point only the top and left lines are
positionable or active.
X = 052.07
Y = 028.56
MICRONS
500X
Cal 9
Figure 4.13
XY Measurement Mode
3. If measurements will be used in statistical calculations, press MEASURE W/
STATS, ALT + XY MEASURE [F9].
The Statistics Display with the current COUNT and MEAN will appear in
the lower left corner of the screen, along with the measuring lines. If the
current MEAN is INVALID, this means that there are measurements in the
Statistics Table that are incompatible with XY Mode measurements. To
clear the Statistics Table, press CLEAR STATS, ALT + D.
4. Select the desired line pattern (dashed or solid) by pressing the CTRL + XY
MEASURE [F9] key combination.
5. If not already selected, select the desired calibration number by pressing the
SELECT CALIBRATION # [Scroll Lock] key.
The Select Calibration # Menu will appear on screen. Follow instructions to
select the desired CAL#. Operators will be automatically returned to the XY
84 - Measuring
Boeckeler VIA-170
X = 066.72
Y = 024.10
Microns
500X
Cal 9
COUNT = 004
MEAN X = 066.28
MEAN Y = 025.47
Figure 4.14
Positioning the X and Y
Measurement Lines
Measurement Mode, and the selected CAL# will be displayed in the upper
right corner of the screen.
5. To measure the object in view:
A. Position the left measurement line along the left perimeter of the
object to be measured. Position the top measurement line along the
top perimeter of the object to be measured (refer to Figure 4.14).
B. Be certain to position the inside edges of the measuring lines
against the object to be measured.
Refer to Positioning the Lines in the Calibration section of this manual.
C. Press ENTER.
The right and bottom measuring lines are now active.
D. Position the right measurement line along the right perimeter of
the object to be measured. Position the bottom measurement line
along the bottom perimeter of the object to be measured. (refer to
Figure 4.14).
E. Be certain to position the inside edges of the measuring lines
against the object to be measured.
Refer to Positioning the Lines in the Calibration section of this manual.
The distance between the two vertical measurement lines will continuously be
Boeckeler VIA-170
Measuring - 85
displayed in the upper left-hand corner of the video screen as X= . The distance between the two horizontal measurement lines will continuously be
displayed in the upper left-hand corner of the video screen as Y= .
To perform comparison measurements in XY Mode:
1. Position all four measuring lines at a fixed distance apart.
2. If operators have an optional knob controller, set the COMPARE switch to the ON
position. Rotate the right knob to move the vertical measuring lines in unison. Rotate the left knob to move the horizontal measuring lines in unison.
3. If operators have an optional joystick controller, tilt the joystick left or right to
move vertical the measuring lines in unison. Tilt the joystick forward or
backward to move the horizontal measuring lines in unison.
By positioning the pair of measuring lines at different locations on the screen,
operators may quickly determine whether or not objects in the field of view
meet size specifications.
To enter the displayed X and Y values into the Statistics Table:
1. From the Measure w/ Statistics Mode, press ENTER STATISTIC [Insert].
The Statistics Display will now read one COUNT higher and the MEAN
will incorporate the new value. To view the entire Statistics Table or to edit
it, press STATISTICS TABLE, ALT + S.
WARNING: Users will be able to enter measurements that were made using
different calibrations. Be sure that measurements entered are compatible with
those already in the table. A warning message will appear only if values being
entered into the table are from a different Measurement Mode than those
already in the table.
To quit measuring or comparing in XY Mode:
1. If using the optional knob controller, place the COMPARE switch in the OFF
position.
2. On the keyboard controller, press any function key.
Measuring lines will disappear and operators will have exited the XY Measurement Mode.
86 - Measuring
Boeckeler VIA-170
Point-to-Point Measurement
To measure in the P-P (Point-to-Point) Mode:
1. On the keyboard controller, press the XY MEASURE [F9] key.
2. If needed, sequence through each of the four Measurement Modes until two
cross hairs cursors are displayed over the video image (refer to Figure 4.15).
This is the P-P (Point-to-Point) Measurement Mode. At this point, only one
cross hairs cursor is positionable or active.
D = 037.55
MICRONS
500X
Cal 9
Figure 4.15
P-P Measurement Mode
E3. If measurements will be used in statistical calculations, press MEASURE W/
STATS, ALT + XY MEAURE [F9].
The Statistics Display with the current COUNT and MEAN will appear in
the lower left corner of the screen, along with the cross hairs cursors. If the
the current MEAN is INVALID, this means that there are measurements in
the Statistics Table that are incompatible with P-P Mode measurements.
To clear the Statistics Table, press CLEAR STATS, ALT + D.
4. If not already selected, select the desired calibration number by pressing the
SELECT CALIBRATION # [Scroll Lock] key.
The Select Calibration # Menu will appear on screen. Follow instructions to
select the desired CAL#. Operators will be automatically returned to the P-P
Measurement Mode and the selected CAL# will be displayed in the upper
right corner of the screen.
Boeckeler VIA-170
Measuring - 87
D = 042.85
MICRONS
500X
Cal 9
Figure 4.16
Positioning the Point-to-Point
Cross Hairs Cursors
5. To measure the object in the field of view:
A. Position the first active cross hairs at the first point of the
object to be measured (refer to Figure 4.16).
B. Be certain to position the inside edges of the cross hairs against the
object to be measured. Refer to Positioning the Lines in the Calibration
section of this manual.
C. Press ENTER.
The second cross hairs cursor is now active.
D. Position the second active cross hairs at the second point of the
object to be measured (refer to Figure 4.16).
E. Be certain to position the inside edges of the cross hairs against
the object to be measured.
Refer to Positioning the Lines in the Calibration section. The distance between
the two cross hairs will continuously be displayed in the upper left-hand corner
of the video screen as D= .
The COMPARE function that is available with the optional knob and joystick
controllers is not used in the P-P Measurement Mode.
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Boeckeler VIA-170
To enter the displayed distance into the Statistics Table:
1. From the Measure w/ Statistics Mode, press ENTER STATISTIC [Insert].
The Statistics Display will now read one COUNT higher and the MEAN
will incorporate the new value. To view the entire Statistics Table or to edit
it, press STATISTICS TABLE, ALT + S.
WARNING: Users will be able to enter measurements that were made using
different calibrations. Be sure that measurements entered are compatible with
those already in the table. A warning message will appear only if values being
entered into the table are from a different Measurement Mode than those
already in the table.
To quit measuring in P-P Mode:
1. On the keyboard controller, press any function key.
The cross hairs will disappear and operators will have exited the P-P Measurement Mode.
Angle Measurement
To determine an angle with the VIA-170, operators will place four or more points on the
video overlay, thereby defining two lines. One pair of points will define one line segment (the first leg), and a second pair of points will define a second line segment (the
second leg). The VIA-170 will automatically determine the angle of the vertex formed
by these two lines, even if the vertex is only implied, that is, not visible within the field of
view.
To measure in the ANGLE Mode:
1. On the keyboard controller, press the ANGLES/CIRCLES [F10] key.
2. Sequence through the two Measurement Modes until the "A=" display is
shown in the upper left corner of the screen (refer to Figure 4.17).
This is the ANGLE Measurement Mode.
3. If measurements will be used in statistical calculations, press MEASURE W/
STATS, ALT + XY MEASURE [F9].
The Statistics Display with the current COUNT and MEAN will appear in
the lower left corner of the screen, along with the cross hairs cursor. If the
current MEAN is INVALID, this means that there are measurements in the
Statistics Table that are incompatible with Angle Mode measurements.
To clear the Statistics Table, press CLEAR STATS, ALT + D.
Boeckeler VIA-170
Measuring - 89
A=
Degrees
Leg 1 -- SPACE for Leg 2
500X
Cal 1
Figure 4.17
ANGLE Mode
3. If not already selected, select the desired calibration number by pressing the
SELECT CALIBRATION # [Scroll Lock] key.
The Select Calibration # Menu will appear on screen. Follow instructions to
select the desired CAL#. Operators will be automatically returned to the
ANGLE Measurement Mode and the selected CAL# will be displayed in the
upper right corner of the screen.
4. To measure the first leg of the angle:
A. Position the first cross hairs cursor along one leg of the angle to be
measured (refer to Figure 4.18).
B. Be certain to position the inside edges of the cross hairs against the
object to be measured. Refer to Positioning the Lines in the Calibration
section of this manual.
NOTE: The top left of the data line will display LEG 1, to remind users they are
measuring the first leg of the angle.
C. Press ENTER.
The first point will be anchored, and a second cross hairs cursor will
appear, ready for positioning. If the Angle Display is on, a line representing the first leg of the angle will continuously connect the first and second
points.
D. Turn on or off the Angle Display to aid in point placement by pressing
SHOW/HIDE ANGLE WHILE MEASURING (ALT + A).
90 - Measuring
Boeckeler VIA-170
NOTE: Turning on the Angle Display can help users align each leg of the
angle against the object in the field of view. Turning off the angle display may
be preferred when users need an unobstructed view of the object being
measured.
E. Repeat steps A-D to position the second, third, and etc., points along
the same leg of the angle being measured (refer to Figure 4.18).
After each point is anchored a cross hairs cursor will appear, ready for
positioning. If the Angle Display is on, the line representing the first leg of
the angle will now transverse the anchored points.
NOTE: Users may anchor up to 20 points per leg. However, in doing so, each
point will become increasingly less significant in determining the line segment.
For this reason, we recommend not exceeding 4-5 points per leg.
5. To measure the second leg of the angle:
A. Press the SPACE BAR.
The display in the upper left of the screen will change from LEG 1 to LEG
2. Users can now place points along the second leg of the angle.
B. Position the first cross hairs cursor along the second leg of the angle
being measured.
C. Be certain to position the inside edges of the cross hairs against
the object to be measured (refer to Figure 4.18). Refer to Positioning the
Lines in the Calibration section.
The distance between the two cross hairs will continuously be displayed in
the upper left-hand corner of the video screen as A= .
A=
Degrees
Leg 2 -- SPACE for Leg 1
500X
Cal 1
Figure 4.18
ANGLE Mode, Placing the First Leg
(angular object represents image being measured)
Boeckeler VIA-170
Measuring - 91
A = 26.5
Second Leg
Degrees
500X
Cal 1
Figure 4.19
ANGLE Mode, Placing the Second Leg
(angular object represents image being measured)
D. Press ENTER.
The first point will be anchored and a second cross hairs cursor will appear
ready for positioning. If the Angle Display is on, the line representing the
second leg of the angle will also appear, continuously connecting the first
and second points.
NOTE: At this point, the measurement of the implied angle will be displayed in the upper left of the screen. However, because the second cross
hairs cursor is still positionable, the reading will change with any movement
of that cursor. If this is not desired, the measurement can be made final by
anchoring one or more additional cursors.
E. Repeat steps A-D to position the second, third and etc., points along
the second leg of the angle (refer to Figure 4.19).
After each point is anchored a cross hairs cursor will appear, ready for
positioning. If the Angle Display is on, the line representing the second leg
of the angle will now transverse the anchored points.
NOTE: When two lines are defined, four angles are also defined (refer to
Figure 4.20). The VIA-170 measures and displays only one of the angles.
Knowing one angle, operators can quickly perform the simple calculations
depicted in Figure 4.20 in order to determine the measurements of the remaining angles, if desired. Use these formulas to calculate other angles.
NOTE: While placing points along the second leg, there are certain cases
wherein an obviously obtuse angle may suddenly "appear" to display an acute
measurement; or an acute angle may suddenly display an obtuse measurement. This is not an error. The new measurement displayed is actually of the
complementary angle, from which the first angle measurement can be easily
92 - Measuring
Boeckeler VIA-170
determined. Due to the way the averaging algorithm of the VIA-170 works,
there will be times when the VIA-170 will switch from measuring angle A to
measuring angle B. In either case, the complementary angle can be determined using the formulas in Figure 4.20.
To enter the displayed angle into the Statistics Table:
1. From the Measure w/ Statistics Mode, press ENTER STATISTIC [Insert].
The Statistics Display will now read one COUNT higher and the MEAN
will incorporate the new value. To view the entire Statistics Table or to edit
it, press STATISTICS TABLE, ALT + S.
WARNING: Users will be able to enter measurements that were made using
different calibrations. Be sure that measurements entered are compatible with
those already in the table. A warning message will appear only if values being
entered into the table are from a different Measurement Mode than those
already in the table.
To quit measuring in ANGLE Mode:
1. On the keyboard controller, press any function key.
The cross hairs and any measuring lines will disappear and operators will have
exited the ANGLE Mode.
To measure an angle using only three points:
1. Place the first and second points of the first leg as described in Step #4, on
pages 90-91.
The second point will be anchored. Users should be sure not to position the second
active cross hairs cursor. Instead, let it lie directly on top of the second point of the
first leg (it will be anchored there).
2. Press the SPACE BAR to activate the second leg of the angle.
Angle 1 = X
Angle 2 = 360
minus Angle 1
Angle 3 = 180
minus Angle 1
Angle 4 = 180
plus Angle 1
Figure 4.20
Measuring Other Angles
When One Angle is Known
Boeckeler VIA-170
Measuring - 93
A = 26.5
Degrees
Leg 2 -- SPACE for Leg 1
500X
Cal 1
Figure 4.21
Measuring an Angle Using Three Points
3. Press ENTER.
The first point of the second leg will be anchored on top of the previous leg's
cursor. Another cross hairs cursor will appear, ready for positioning. The line
representing the second leg of the angle will also appear (refer to Figure 4.21).
4. Position the second point along the second leg of the angle being measured.
5. Press ENTER.
The last point will of the second leg will be anchored. The measurement of the
angle created by the two lines is displayed in the upper left-hand corner of the
video screen.
To clear points:
1. While in the ANGLES Mode, press CLEAR POINTS (CTRL + ANGLES/CIRCLES
[F10]).
All points will be cleared from the overlay and an active cursor will remain. All
anchored markers present in the overlay will remain unaffected by this clear.
To quit measuring in Angles Mode:
1. On the keyboard controller, press any function key.
The cross hairs will disappear and operators will have exited the Angle
Measurement Mode.
94 - Measuring
Boeckeler VIA-170
Circle Measurement
To determine the radius or circumference of a circle with the VIA-170, operators will
place three or more points on the video overlay, thereby defining a circle. The VIA-170
will automatically determine the radius and circumference of that circle, even if the
circle is only implied, that is, not entirely visible in the field of view. Measurements
reflect those of a perfect circle, and are used only as approximations when measuring
irregularly shaped circles or ellipses.
To measure in the CIRCLE MODE:
1. On the keyboard controller, press the ANGLES/CIRCLES [F10] key.
2. Sequence through the two Measurement Modes until the "R= C=" display is
shown in the upper left corner of the screen (refer to Figure 4.22).
This is the CIRCLE Measurement Mode.
R =
C =
MICRONS
500X
Cal 9
Figure 4.22
CIRCLE Measurement Mode
(circle represents image being measured)
3. If measurements will be used in statistical calculations, press MEASURE W/
STATS, ALT + XY MEASURE [F9].
The Statistics Display with the current COUNT and MEAN will appear in
the lower left corner of the screen, along with the cross hairs cursor. If the
current MEAN is INVALID, this means that there are measurements in the
Statistics Table that are incompatible with Circle Mode measurements.
To clear the Statistics Table, press CLEAR STATS, ALT + D.
Boeckeler VIA-170
Measuring - 95
4. If not already selected, select the desired calibration number by pressing the
SELECT CALIBRATION # [Scroll Lock] key.
The Select Calibration # Menu will appear on screen. Follow instructions to
select the desired CAL#. Operators will be automatically returned to the
CIRCLE Measurement Mode and the selected CAL# will be displayed in the
upper right corner of the screen.
5. To measure the object in view:
A. Position the first cross hairs cursor along the perimeter of the circular
image being measured. Press ENTER.
The first point will be anchored and a second cross hairs cursor will appear, ready for positioning. If the Circle Display is on, a circular graphic
representing the circle being measured will also be displayed.
B. Turn on or off the Circle Display to aid in point placement by pressing
SHOW/HIDE CIRCLE WHILE MEASURING (ALT + C).
NOTE: Turning on the Circle Display can help users align the circle against
the object in the field of view. Turning off the angle display may be preferred
when users need an unobstructed view of the object being measured.
C. Position the second cursor along the perimeter of the circular image
being measured. Press ENTER.
The second point will be anchored and a third cross hairs cursor will
appear, ready for positioning.
R =
C =
034.52
216.87
MICRONS
500X
Cal 9
Figure 4.23
CIRCLE Mode:
Anchoring the Third Point
(circle represents image being measured)
96 - Measuring
Boeckeler VIA-170
NOTE: At this point, the measurement of the implied circle will be displayed in
the upper left of the screen. However, because the third cross hairs cursor is
still positionable, the display will change with any movement of the cursor. If
this is not desired, the measurement can be made final by anchoring the third
or final cursor.
C. Position the third point along the perimeter of the circular image
being measured. Press ENTER.
The third point will be anchored and the radius and circumference of the
circular image will be displayed in the upper left-hand corner of the video
screen (refer to Figure 4.23). A fourth cross hairs cursor will have appeared,
ready to begin a new measurement, or add additional points to the current
measurement. If the latter, the measurement will change slightly as each new
point is added.
NOTE: While users can define an arc or circle using a minimum of three points,
for best results, we recommend placing more points, preferably 8 or 16, since
these can be placed equidistant in a triangular pattern. Whatever the number
of points used, keep in mind the triangular pattern while placing points. The
pattern is much like cutting a pie: first cut it in half with points 1 and 2, then in
quarters with points 3 and 4, then in eighths with points 5, 6, 7, and 8; and so
on.
To enter the displayed radius and circumference into the Statistics Table:
1. From the Measure w/ Statistics Mode, press ENTER STATISTIC [Insert].
The Statistics Display will now read one COUNT higher and the MEAN
will incorporate the new value. To view the entire Statistics Table or to edit
it, press STATISTICS TABLE, ALT + S.
WARNING: Users will be able to enter measurements that were made using
different calibrations. Be sure that measurements entered are compatible with
those already in the table. A warning message will appear only if values being
entered into the table are from a different Measurement Mode than those
already in the table.
To clear points:
1. While in the CIRCLES Mode, press CLEAR POINTS (CTRL +ANGLES/CIRCLES
[F10]).
All points will be cleared from the overlay and an active cursor will remain. All
anchored markers present in the overlay will remain unaffected by this clear.
To quit measuring in Circles Mode:
1. On the keyboard controller, press any function key.
The cross hairs will disappear and operators will have exited Circle Measurement Mode.
Boeckeler VIA-170
Measuring - 97
Count Measurement
To count cells/particles in the COUNT Mode:
1. On the keyboard controller, press the COUNT [F11] key.
This is the COUNT Measurement Mode (refer to Figure 4.24). The letter A:
and measurement display, will appear in the upper left of the screen. This
display represents the total count of all specimens marked with the tag A. A
positionable counting cursor " " is also present in the overlay, along with any
anchored markers.
2. Select a different marker overlay (#1 - #10), if desired, by pressing the PREV
OVERLAY [Page Up] key or the NEXT OVERLAY [Page Down] key.
NOTE: Sized grids, scales, circles or boxes created in the Marker Mode can
assist in counting by providing users with a reference for distance, area, etc.
A = 0000
Figure 4.24
Count Mode
3. To count the objects in view:
A. Position the counting cursor over the object to be counted.
B. Press ENTER on the keyboard controller - or - press the pen tip into
the screen on top of the cursor with the optional light pen. Select
buttons on other optional controllers will achieve this same function.
The cursor will anchor a tag A over the object. The cursor will remain
positionable, ready to tag and count another object. The resulting count will
be displayed in the upper left of the screen (refer to Figure 4.25).
NOTE: A tag can be erased by pressing the UNDO [delete] key.
98 - Measuring
Boeckeler VIA-170
C. Repeat the above two steps until all the objects are counted which
belong to the A group.
D. To count a second group of objects visible in the same field of view,
press the COUNT [F11] key again - or - press the barrel button on the
light pen.
A = 0026
A
A
A
A
A
A
AA
A
A
A
AA
A
A A
A
A
A
A
A
A
A
AA
A
Figure 4.25
Counting Objects, Group A
The letter B: and measurement display, will appear in the upper left of the
screen. This display represents the total count of all specimens marked
with a B tag. The positionable counting cursor will also be present in the
overlay, along with any anchored markers.
E. Anchor the B tag on each object until all the objects are counted which
belong to the B group.
F. If desired, repeat the above two steps to anchor C through J tags (refer
to Figure 4.26 for an example of count combinations).
NOTE: To cycle backwards through the alphabet (J down to A), press the
SHIFT key plus the COUNT [F11] key.
4. To obtain a final count of all tagged objects:
A. After all desired tags are anchored on screen, repeatedly press the
COUNT [F11] key. A display of the final count for each tag will appear on
screen in the upper left corner.
NOTE: Measure w/ Statistics is not active in COUNT Mode.
Boeckeler VIA-170
Measuring - 99
E = 0008
C
EE B
A
A
B
B
B E
B
A
AA
D
A
A
A
C
C
D
D
AA
C
E
A
D
E
C
B
A
A
B
C
A
A
C
E
CD
B
A A
AA
AC
E
A
A
D
DD
A
AA
A
E
Figure 4.26
Combination of Tags
5. To clear the screen of tags while retaining the count:
A. If operators wish to retain totals while continuing to count on a new sample
or video image, press the CLEAR [End] key.
A Clear Tags Menu will appear on screen, giving users two options in
clearing tags: to clear all tags (A-J) and all counts - or - to clear all tags (AJ) and retain all counts.
B. Select the CLEAR TAGS WHILE RETAINING COUNT option, and SAVE
to confirm the desired option.
The screen will be cleared of markers, and all counts will remain as they
were before pressing CLEAR [End].
6. To clear the screen of all tags and all counts:
A. If operators wish to zero out all counts and erase all tags (A-J), press the
CLEAR [End] key.
A Clear Tags Menu will appear on screen, giving users two options in
clearing tags: to clear all tags (A-J) and all counts - or - to clear all tags (AJ) and retain all counts.
B. Select the CLEAR ALL TAGS AND COUNTS option, and SAVE to
confirm the desired option.
The screen will be cleared of markers, and all counts will be displayed as
0000 (refer to Figure 4.24). NOTE: An "undelete" command, CTRL +
OVERLAY [Home], will retreive only the most recently erased tag.
7. To quit the COUNT Mode press any function key.
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Boeckeler VIA-170
Area/Chords Measurement
To measure AREA in the AREA/CHORDS Mode:
1. Define the perimeters of the area to be measured.
A. On the keyboard controller, select, size and anchor a marker that encloses an empty shape (e.g., a circle or box) - or - create a closed shape
with straight lines or freehand drawing lines.
NOTE: Freehand drawing is available only with the optional light pen or mouse
device. It is important to understand that the area will be calculated from within
the inside edges of the shape or drawn line. The entire illuminated line will not
be calculated in the area. Additionally, any line segment or marker that falls
within the shape will be discounted from the total area measurement. This
means that in drawing one continuous line, any overlap of endpoints must take
place outside of the drawn shape (refer to Figure 4.27).
Figure 4.27
Drawing Perimeter of Area
2. After the shape or drawing is complete and anchored, press the AREA/CHORDS
[F12] key.
This is the AREA/CHORDS Measurement Mode (refer to Figure 4.28). A
preference arrow is positioned after the area display (A), designating the option
which is currently active. A positionable cross hairs cursor is present in the
overlay, along with the drawn shape and any other anchored markers.
3. If measurements will be used in statistical calculations, press MEASURE W/
STATS, ALT + XY MEAURE [F9].
The Statistics Display with the current COUNT and MEAN will appear in
Boeckeler VIA-170
Measuring - 101
the lower left corner of the screen, along with the cross hairs cursor. If the
the current MEAN is INVALID, this means that there are measurements in
the Statistics Table that are incompatible with Area Mode measurements.
To clear the Statistics Table, press CLEAR STATS, ALT + D.
A= 000000.0000
D1= 000.00
D2= 000.00
MICRONS
1000X
CAL 7
Figure 4.28
Area Measurement Option
4. If not already selected, select the desired calibration number by pressing the
SELECT CALIBRATION # [Scroll Lock] key.
The Select Calibration # Menu will appear on screen. Follow instructions to
select the desired CAL#. Operators will be automatically returned to the AREA/
CHORDS Measurement Mode and the selected CAL# will be displayed in the
upper right corner of the screen. Operators may begin measuring when the
desired number is displayed.
5. To measure the area of the object in view:
A. Position the cross hairs cursor inside the shape to be measured (refer
to Figure 4.28).
B. Press the pen tip into the screen on top of the cursor - or - press
ENTER on the keyboard controller. Select buttons on optional controllers
will achieve this same function.
The shape will fill with a solid color, and the resulting area will be displayed in
the upper left of the screen (refer to Figure 4.29).
NOTE: If the area outside of the shape filled as well as the inside, check to be
sure the shape was entirely closed.
6. To measure the area on a new sample or marker overlay:
102 - Measuring
Boeckeler VIA-170
A= 001547.6787
D1= 000.00
D2= 000.00
MICRONS
1000X
CAL 7
Figure 4.29
Calculating the Area
A. Press UNDO [delete] to erase the drawn shape or marker - or Change to another marker overlay (1-10) by pressing the PREV OVERLAY [Page Up] key or NEXT OVERLAY [Page Down] key.
Repeat steps 1 through 5.
To enter the displayed area into the Statistics Table:
1. From the Measure w/ Statistics Mode, press ENTER STATISTIC [Insert].
The Statistics Display will now read one COUNT higher and the MEAN
will incorporate the new value. To view the entire Statistics Table or to edit
it, press STATISTICS TABLE, ALT + S.
WARNING: Users will be able to enter measurements that were made using
different calibrations. Be sure that measurements entered are compatible with
those already in the table. A warning message will appear only if values being
entered into the table are from a different Measurement Mode than those
already in the table.
To quit measuring in Area Mode:
1. On the keyboard controller, press any function key.
The cross hairs will disappear and operators will have exited Area
Measurement Mode.
Boeckeler VIA-170
Measuring - 103
To measure CHORDS in the AREA/CHORDS Mode:
1. To activate the first chord option (D1), press the AREA/CHORDS [F12] key so
that the preference arrow is positioned next to the D1 display - or - press the
pen tip into the D1 display to select it.
NOTE: To cycle backwards through the area and chord options, press the
SHIFT key plus the AREA/CHORDS [F12] key.
The preference arrow will be positioned after the D1= xxx.xx display, and a
cross hairs cursor labelled with a "1" will appear on screen (refer to Figure
4.30). If operators enter this mode immediately after calculating the area, the
area measurement will continue to be displayed in the upper left of the screen.
The filled area of the shape will disappear and the word "AREA" will appear on
the shape to remind operators which image corresponds with the area measurement display (refer to Figure 4.30).
A= 001547.6787
D1= 000.00
D2= 000.00
AREA
MICRONS
1000X
CAL 7
1
Figure 4.30
Chord Measurement Option
2. Position the cursor along the perimeter of the object. This will be the first
endpoint of the distance displayed as D1.
NOTE: In this mode, the VIA-170 will measure the distance from the center of
the cursor. Also, the Measure w/ Statistics Mode is only active for entering
area measurements. Chord measurements cannot be entered.
3. Anchor the cursor by pressing the pen tip into the screen on top of the cursor or
by pressing ENTER on the keyboard controller. The select buttons on optional
controllers will achieve this same function.
The cursor will be anchored and the second cursor will appear, ready for
positioning.
104 - Measuring
Boeckeler VIA-170
A= 001547.6787
D1= 013.45
D2= 000.00
MICRONS
1000X
CAL 7
1
AREA
1
Figure 4.31
Measuring the D1 Chord
4. Position the second cursor along the perimeter of the object. This will be the
second endpoint of D1.
NOTE: Be sure to position the cursor so that its center lies just inside the
line representing the object's perimeter.
5. Anchor the second cursor by pressing the pen tip into the screen on top of the
cursor or by pressing ENTER on the keyboard controller. The select buttons on
optional controllers will achieve this same function.
The second cursor will be anchored and a straight line will connect the two
endpoints. The resulting measurement is displayed in the upper left of the
screen (refer to Figure 4.31).
6. Measure the second chord or distance:
A. Press the AREA/CHORDS [F12] key to activate the D2 option - or - press
the pen tip into the D2 display to select it.
The preference arrow will be positioned after the D2= xxx.xx display and a
cross hairs cursor labelled with a "2" will appear on screen (refer to Figure
4.32).
B. Position the cursor along the perimeter of the object. This will be the
first endpoint of D2, which can be any point-to-point measurement.
NOTE: In this mode, the VIA-170 will measure a distance from the center
of the cursor.
C. Anchor the first cursor by pressing the pen tip into the screen on top of
the cursor or by pressing ENTER on the keyboard controller. The select
Boeckeler VIA-170
Measuring - 105
A= 001547.6787
D1= 013.45
D2= 086.77
MICRONS
1000X
CAL 7
1
2
AREA
2
Figure 4.32
Measuring the D2 Chord
buttons on optional controllers will achieve this same function.
The first cursor will be anchored and the second cursor will appear, ready
for positioning.
D. Position the second cursor along the perimeter of the object. This will
be the second endpoint of D2.
E. Anchor the second cursor by pressing the pen tip into the screen on top
of the cursor or by pressing ENTER on the keyboard controller. Select
buttons on optional controllers will achieve this same function.
The second cursor will be anchored and a straight line will connect the two
endpoints. The resulting measurement is displayed in the upper left of the
screen (refer to Figure 4.32).
7. To repeat the same chord or distance measurement position and anchor the
active cursor as the first endpoint of the new chord (refer to step #4).
8. To measure chords on a new sample or marker overlay:
A. Press UNDO [delete] to erase the drawn shape or marker - or - change
to another marker overlay (1-10) by pressing the PREV OVERLAY [Page
Up] key or NEXT OVERLAY [Page Down] key.
B. Repeat steps 1 through 5.
To quit measuring in Chords Mode:
1. On the keyboard controller, press any function key.
106 - Measuring
Boeckeler VIA-170
Timers
To use the Timer w/XY Measurements :
1. Enter XY Measurement by repeatedly pressing XY MEASURE [F9] until the
desired mode is displayed.
2. Position the lines or cursors at the desired distance apart.
3. Press the TIMER W/XY MEASURE key combination CTRL + COUNT [F11].
The TIMER Display will appear in the lower right corner of the screen, along
with the measurement overlay and any markers anchored in that overlay (refer
to Figure 4.33)
00 : 00 : 00 . 00
Figure 4.33
Timer w/XY Measurement
4. To time an event in the field of view:
A. To start the Timer, press the SPACE BAR.
The TIMER will continuously display elapsed time to the hundredths of a
second. Measurement lines/cursors can be positioned while timer is active.
B. To stop the TIMER, press the SPACE BAR a second time.
C. To zero out the TIMER, press the SPACE BAR a third time.
NOTE: Steps A through C can be repeated as often as desired.
5. To remove the TIMER from the display, press CTRL + COUNT [F11].
NOTE: Timer displays cannot be entered in the Statistics Table.
Boeckeler VIA-170
Measuring - 107
00:00:00.00
To ready timer press enter. To
exit timer, press any marker key.
Figure 4.34
Timer w/ Markers Mode
To use the Timer w/ Markers :
1. On the keyboard controller, press CTRL + AREA/CHORDS [F12].
The TIMER Display will appear along with any anchored markers that might be
on the overlay (refer to Figure 4.34)
2. To time an event in the field of view:
A. Press the SPACE BAR to ready the TIMER.
The TIMER display will show "TIMER READY."
B. Press the SPACE BAR a second time to start the TIMER.
The TIMER will continuously display elapsed time, to the hundredths of a
second.
C. Press the SPACE BAR a third time (or any other function key) to stop
the TIMER. Note the time elapsed.
NOTE: The TIMER display will show "TIMER READY."
D. Press SPACE BAR a fourth time to restart the TIMER from zero.
NOTE: Steps B through D can be repeated as often as desired.
NOTE: New markers cannot be anchored on an overlay while the timer is
running.
108 - Measuring
Boeckeler VIA-170
To exit the TIMER Mode:
1. At "TIMER READY" status, press any function key except the SPACE BAR.
The TIMER display will offer the option to ready the TIMER again or to exit the
TIMER.
2. Again, press any function key except the SPACE BAR.
The TIMER display will disappear. Users will have exited the TIMER Mode and
they will have entered the Marker Mode or another Measurement Mode,
depending on which function key was pressed.
Boeckeler VIA-170
Measuring - 109
Section Five:
Communication
Boeckeler VIA-170
Communication - 111
112 - Communication
Boeckeler VIA-170
USE OF THE RS-232 PORT
BASIC OPERATION
Output is provided for most printers, terminals or computers that will accept data in
ASCII format and meet RS-232 electrical specifications.
Before operators use the RS-232 data output, they must verify the parameters for their
specific printer or computer. The VIA-170 RS-232 parameters are factory set at 9600
baud, 8 data bits, 1 stop bit, no parity, CR data block terminator, and output for Statistics Summary Only. All but two of these parameters are permanently fixed. Operators
may select baud rates, how statistics are output, and whether a data block terminator
has a carriage return with a line feed or a carriage return without a line feed. To change
the factory setting for these three parameters, follow the instructions on the next page.
Also, before computers can use the RS-232 data output, they must be programmed to
receive the information. Program instructions are on page 116.
Boeckeler VIA-170
Communication - 113
Set Up
Before using the RS-232 data output capability, operators must verify and/or set the
parameters through the RS-232 Set-Up Menu.
E
To set up RS-232 communications:
1. Press CTRL+ RS-232 TRANSMIT [Print Screen].
The RS-232 Setup Menu will appear on the video screen (see Figure 5.1). The
BAUD RATE option will highlighted (factory setting is 9600 baud).
2. To change the baud rate, press the SPACE BAR to toggle through the available
baud rates until the desired rate is displayed on screen.
RS232 SETUP
BAUD RATE: 9600
TERMINATOR:
Carriage Return + Line Feed
STATISTICS:
Send Statistics Summary Only
Press the space bar to toggle through
possible selections.
CANCEL
SAVE
Figure 5.1
RS-232 Setup Menu
3. Press ENTER.
The TERMINATOR option will be highlighted, ready for selection.
4. To change the terminator, press the SPACE BAR to toggle through the available
selections until the desired terminator return and line feed is displayed.
NOTE: The factory setting is a Carriage Return + Line Feed. Some printers
require a line feed after the carriage return to advance the paper, some advance it automatically. Set terminator to suit specific needs.
5. Press ENTER.
The STATISTICS option will be highlighted, ready for selection.
114 - Communication
Boeckeler VIA-170
6. To change how statistics will be ouput, press the SPACE BAR to toggle through
the available selections until the desired option is displayed.
NOTE: SEND STATISTICS SUMMARY ONLY means the current count, mean,
standard deviation, low value, high value, and range will be transmitted along
with the displayed measurement. SEND ALL STATISTICS means that the
summary, the displayed measurement and all values that are in the Statistics
Table will be transmitted (up to 500 values). Values that have been deleted and
display a DEL in the table will be printed with a DEL following their transmission. Users must be in a Measure w/Statistics Mode before transmitting
statistics.
7. Select SAVE or CANCEL to save or cancel displayed settings.
The RS-232 Setup Menu will automatically disappear and users will return to their
current Measurement or Marker Overlay.
Transmitting Data
When users are operating the VIA-170, they may transmit the measurements displayed
in the upper left-hand corner of the measurement screen. Also, while in the Marker
Mode, operators may transmit the marker coordinates and/or marker size (if displayed
in the lower left-hand corner of the marker overlay). While in the Align Mode, the
Offset Display can be transmitted. These display(s) must be present in order to be
transmitted. While in a Measure w/ Statistics Mode, the displayed measurement and
statistics can be transmitted.
Measurement data is output in different forms depending on the specific mode of the
VIA-170. In general, the measurement information on the screen is output to the remote
device. When the VIA-170 is in X Mode, X = x.xxx will be transmitted (x.xxx being the
actual measurement displayed on the screen). In Y Mode, Y= y.yyy is sent. In XY
Mode, X= x.xxx Y= y.yyy is sent. In P-P Mode, D=d.ddd is sent. In ANGLE MODE, A=
aaa.a is sent, and in CIRCLE MODE, R= rrrr. C= cccc. is sent. In the COUNT Mode,
all nonzero counts will be transmitted by tag letter groups, e.g., A= aaaa. B= bbbb. C=
cccc., etc. (users only have to transmit once to send all counts). In AREA/CHORDS
Mode, A= xx.xxxxxxxx D1= x.xxxx D2 = x.xxxx is sent. In either of the TIMER Modes
(marker or measurement), TIMER = xx:xx:xx.xx will be transmitted. All measurement
data will be followed by a carriage return and the UNITS displayed in the measurement
overlay (e.g., MICRONS, DEGREES). An optional line feed can be selected from the
terminator option in the RS-232 Menu.
On the keyboard controller, the transmit function is operated by pressing the RS-232
TRANSMIT [Print Screen] key. On either the knob or joystick controller, the transmit
function is operated by the button labeled TRANSMIT. At any time, operators may
simply press the RS-232 TRANSMIT key or button, and any marker or measurement
readings on screen will be transmitted through the RS-232 port.
NOTE: In some cases, a leading zero is transmitted which causes a fifth digit to
be transmitted. This is the case when the decimal point is moved farthest to the
left. The transmission will be, then, X = 0.xxxx.
Boeckeler VIA-170
Communication - 115
If transmitting TIMER data, users must allow the transmission to complete
before restarting the TIMER again.
Program to Test Port
To test the RS-232 computer connection to the VIA-170, a program will need to be
written for the computer. The requirements for such a program are as follows:
1. a personal computer with at least one serial port.
2. a version of BASICA, GWBASIC or Quick BASIC installed on the computer (other
versions of BASIC may or may not have the same syntax as the program printed
below).
3. a cable to connect the VIA-170 RS-232 port to the computer port (VIA-170 units
have DB-9 connectors for RS-232 output).
4. the VIA-170 powered up and in one of the Measurement Modes, with camera and
video monitor also operating (be sure the camera is turned on first).
The program is as follows:
10
20
30
40
50
60
70
REM PROGRAM TO TEST RS-232 INTERFACE ON VIA PRODUCTS
REM SET THE VIA FOR 9600 BAUD THRU ITS RS232 MENU
PRINT "NOW PRESS TRANSMIT BUTTON..."
OPEN "COM2:9600,N,8,1,DS"AS #1
INPUT #1, X$
PRINT X$
GOTO 50
Line 40 of this program can be changed to specify any COM port the user prefers.
When this program is run on the computer, users will be prompted to press the
RS-232 TRANSMIT [Print Screen] key on the VIA-170. If the VIA-170 RS-232 connection is functioning properly, the measurement reading on the VIA-170 will be displayed
on the computer monitor. If there are any questions, users are welcome to call the
Service Department at Boeckeler Instruments, Inc., at (800) 552-2262 or (520) 5737100.
116 - Communication
Boeckeler VIA-170
RS-232 Connector Pin Out
The RS-232 connector is on the rear panel of the VIA-170 and is a standard DB-9. If
operators are connecting the RS-232 connector to a printer or computer, they will need
a cable which has nine pins on one end and a connector on the other end compatible
with the printer or computer. Such cables are available at most electronic stores or from
your Boeckeler dealer. The following pin out is standard except for pin 9 which is
unused in the EIA Standard.
NOTE: When establishing an RS-232 communications link, the following table
should be utilized. The most commonly asked pin out question is regarding
pin #7.
Table 5.2
RS-232 Connector Pin Out
PIN #
Boeckeler VIA-170
NAME
DESCRIPTION
1
DCD
Data Carrier Detect. The VIA-170 sets this control
line to an active high.
2
RXD
Receive Data. The VIA-170 transmits data on this
pin.
5
GND
Signal Ground. This pin must be connected to
signal ground at the remote device connector.
6
DSR
Data Set Ready. The VIA-170 sets this control
line to an active high.
7
RTS
Request to Send. This control line must be set
active high.
8
CTS
Clear to Send. The VIA-170 sets this control line
to an active high.
9
SEND
Used as a foot pedal switch. This is not a standard RS-232 signal; pin 9 is not used in the
standard fashion. Grounding this pin causes the
interface to send a block of data. This is an
optional method of initiating transmission when
the VIA-170 is connected to a computer.
Communication - 117
Using a Video Printer
The VIA-170 is compatible with most video printers which may be purchased from
dealers around the country. Unlike text printers, which print only measurement coordinates on a tape roll similar to calculators, video printers will print everything displayed
on the screen, including the camera image.
This means that the video printer will also print the active marker if it is present in the
overlay. In the Marking Mode, the active marker is the unanchored pointer, scale, grid,
box, circle, crossline, date/time label or text line. If operators wish to print an overlay
without the active marker, they may eliminate the marker from the overlay, thereby
eliminating the extra marker from the printout. The following procedure eliminates the
active marker from the overlay.
To eliminate the active marker from the overlay before printing:
1. Press the OVERLAY [Home] key.
The desired overlay will appear on screen without the active marker and may
be printed at this point.
2. To recover the active marker, press the desired marker key.
118 - Communication
Boeckeler VIA-170
Section Six:
Appendices
Boeckeler VIA-170
Appendices - 119
120 - Appendices
Boeckeler VIA-170
TROUBLESHOOTING GUIDE
The quality inspectors at Boeckeler Instruments test each VIA-170 for software and
hardware performance prior to shipment. Therefore, most problems which operators
encounter are related to installation. Table 6.1 below describes common problems and
their solutions. If, after referring to this table, a problem still exists, call Boeckeler
Instruments, Inc., at (800) 552-2262 and ask for technical assistance. There are no
user serviceable parts in the VIA-170. Do not open the cabinet.
Table 6.1
Troubleshooting Guide
Symptoms
Possible Solutions
The green indicator light
on the front of the
VIA-170 does not light
up.
1. Check that the VIA-170 is plugged into a live
outlet.
Monitor does not light
up.
1. Check that the monitor is plugged into a live
outlet.
2. On the back panel of the VIA-170 remove the
plastic cover above the power supply connector
and check for a blown fuse. Replace the fuse
only with a BUSS MDL 1/2 amp slow blow. See
full instructions page 125.
2. Check that the monitor is switched on.
3. Check that the monitor brightness control is
properly adjusted.
Monitor displays a
scrambled picture.
1. Check the horizontal hold control on the video
monitor for proper adjustment.
2. Check that the Dual Voltage Switch (110V/220V)
located on the back panel of the VIA-170 is
properly set.
(continued on next page)
Boeckeler VIA-170
Appendices - 121
Table 6.1
Troubleshooting Guide
(continued)
Symptoms
Monitor lights up but
does not display a
picture.
Possible Solutions
1. Check that the video source and VIA-170 are
each plugged into a live outlet.
2. Check that the video source and VIA-170 are both
switched on.
3. Check that the coaxial cables are connected to
the proper BNC connectors on the video source,
the VIA-170 and the monitor. Some cameras and
monitors have multiple output and input connectors. Consult your video manuals for correct
connection information.
4. If the video source or monitor has a switch for 75
OHM or high Z, ensure this switch is in the 75
OHM position.
5. On the back panel of the VIA-170 remove the
plastic cover above the power supply connector
and check for a blown fuse.
6. Bypass the VIA-170 by connecting the monitor
directly to the video source. If the video image
still does not appear, have the video source and
monitor checked.
The VIA-170 graphics
bloom.
1. Adjust system parameters on the video output
device, monitor or camera (if in use)such as
contrast, gain, brightness, color, light and
intensity.
2. Adjust the color or gray level of the VIA-170.
122 - Appendices
Video image on
monitor scrolls.
1. If using composite input, ensure that the 37-pin
ribbon cable between the VIA-170 and Y/C
or RGB interface is disconnected.
Light pen cursor or
drawing line will not
follow the light pen
over the darker area of
an image.
1. The image is too dark for the light pen to detect
and alter the cursor/line position. Increase the
brightness of the monitor.
Boeckeler VIA-170
WARNING MESSAGES
The VIA-170 detects certain potential misjudgments users may have made in calibrating and/or measuring. At such detections, the VIA-170 displays a warning message to
aid operators in correcting potential problems. Operators may choose to ignore these
messages and carry on with measurements, since not all applications require the best
resolution or accuracy. A summary of the warning messages follows in Table 6.2.
Table 6.2
Warning Messages
"X= OVERFLOW" or "Y=OVERFLOW"
Cause
This warning arises when the magnitude of the measurement value becomes larger than 99999. If, during
calibration, the user enters a large value
with the measuring lines positioned too
closely together, then, when the lines
are moved apart, the measurement
value becomes greater than 99999.
Solution
Recalibrate. If necessary, change
magnification so that the stage micrometer fills at least 80% of the screen.
Also ensure that the space between the
measuring lines represents at least 80%
of the screen. Enter a value with a
smaller magnitude than that used for
the previous calibration.
"LINE POSITION IS NOT OPTIMAL
GREATER ACCURACY IS POSSIBLE"
Cause
The VIA-170 is calibrated using less
than 10% of the screen width or height.
The VIA-170 will accept the calibration,
but the measurement accuracy will be
degraded.
Solution
Continue or recalibrate. If desired,
change magnification to ensure that the
stage micrometer fills at least 80% of
the screen. Also ensure that the distance between the measuring lines
represents at least 80% of the screen.
"GREATER RESOLUTION IS POSSIBLE"
Cause
The measurement value entered is less
than the number of pixels between the
measuring lines. The quotient of the two
numbers yields a scale factor less than
one, but the VIA-170 will accept the
calibration.
Solution
Recalibrate. Increase the magnitude of
the measurement value by a factor of
ten. Ideally, such values should be
between 1000 and 99999. For example,
.001 mm should be entered as 1000, or
10000 not 00100, 00010 or 00001.
(continued on next page)
Boeckeler VIA-170
Appendices - 123
Table 6.2
Warning Messages
(continued)
"MEMORY OVERFLOW"
Cause
The overlay has as many markers on it
as can be stored.
Solution
Switch to a new marker overlay or erase
markers by using the CLEAR or UNDO
key.
Cause
The overlay has as many freehand
drawings on it as can be stored.
Solution
Switch to a new marker overlay or erase
drawn lines by using the CLEAR or
UNDO key. As drawn lines take a
separate memory than markers, erasing
markers will not free memory space for
drawn lines.
"MARKERS PROTECTED" or "CALIBRATIONS PROTECTED"
Cause
"Markers Protected" -- Certain markers
on each overlay have been protected by
a password holder. This means users
cannot erase or clear them, although
they can save, align, delete and clear
markers added to the protected overlay.
They can even align and change the
color of protected markers. This protection ensures that an accidental erasure
of certain markers does not take place.
Cause
"Calibrations Protected" -- All calibrations have been protected by a password holder. This means that once
calibrations have been set, users are
not able to change them.
124 - Appendices
Solution
Password holder can change markers.
With the password, the user can enter
the Security Menu, unprotect markers,
exit the menu, make all deletions and
additions needed in the marker overlay,
then enter the Security Menu and protect
the markers as changed.
Solution
Password holder can change calibrations. With the password, the user can
enter the Security Menu, unprotect
calibrations, exit the menu, make new
calibrations in the Calibration Menu, then
enter the Security Menu and protect the
calibrations as changed.
Boeckeler VIA-170
RELEASE NOTES
FOR VIA-170 WITH 2 FUSES
Two 1/2 Amp Fuses
In the VIA-170 Operating Instructions beginning on page 23, installation instructions
and illustrations refer to a 3/8 amp fuse. This is now a 1/2 amp fuse. In the "Troubleshooting Guide" on page 121, the reference to a 3/8 amp fuse can be changed to read
"1/2 amp fuse."
In addition, a spare fuse has been provided since the manual was written. Please note
the following procedures for replacing the fuse and using the spare fuse.
To replace a VIA-170 fuse with the spare fuse:
1. Power down the VIA-170 and disconnect the power cord from its attachment
to the back of the VIA-170.
2. On the back of the VIA-170, to the right of the now-vacated power port, there is a
removable fuse holder identified by a drawing of a fuse. Dislodge the fuse holder
by using a small slotted screwdriver.
3. Remove the exposed fuse from the holder.
4. Next to the exposed fuse is a black casing for the spare fuse. With a small tool,
poke the top of the casing downward so that the spare fuse will be dislodged
along with its envelope.
5. Remove the spare fuse from its envelope and return the envelope to the
spare fuse casing.
6. Place the spare fuse in the exposed holder that was occupied by the old fuse.
7. Slide the entire fuse holder back into the back of the VIA-170. The VIA-170
power cord may now be attached and the unit powered up.
Boeckeler VIA-170
Appendices - 125
RELEASE NOTES
FOR VIA-170 WITH RESTART
Warm Restart Command
The VIA-170 video image marker-measurement system now features a warm
restarting command.
A warm start, initiated by pressing CTRL+ALT+DELETE, restarts the VIA-170 while
saving all calibrations, anchored markers, passwords, and menu settings. A warm start
may be desired when new controllers have been installed so that the VIA-170 can
detect the new devices on power up.
For additional advice concerning restarts, call for technical assistance at
(520)745-0001 or toll free in the U.S. at (800)552-2262.
126 - Appendices
Boeckeler VIA-170
GLOSSARY
ACTION KEYS
- keyboard function keys which allow users to perform actions or begin a given process.
These keys are used with marker keys and measurement keys.
ACTIVE MARKER
- an unanchored graphic or text block which is positionable on the overlay.
ANCHORED MARKER
- the opposite of an active marker. An anchored marker has been placed in a fixed
position on the overlay and cannot be moved again. However, anchored markers may
be erased or cleared.
ANGLE
- the shape formed by two straight lines or two planes meeting at a common point or
edge. The unit of measure between the two sides of an angle is a degree, each degree
being one 360th part of the circumference of a circle.
ANGLE DISPLAY
- the feature in the VIA-170 which allows users to display a graphic of an angle while
users place points to define an angle. This display will change slightly as each point is
added. Turning on the display can help users align each leg of the angle against the
object in the field of view. Turning off the display may be preferred when users need an
unobstructed view of the video image.
APEX
- the vertex of an angle. See also: vertex.
AREA
- the size of a region or surface.
ASCII
- the American Standard Code for Information Interchange is one of the standard
formats for representing characters.
BAUD RATE
- the rate at which data is transmitted over a serial interface. The transmitting and
receiving devices must be set at the same rate.
BLOOM
- markers or measuring lines which enlarge or blur on the monitor due to excessive
brightness.
BNC COAXIAL CABLE
- a cable consisting of a tube of electrically conducting material surrounding a central
Boeckeler VIA-170
Appendices - 127
conductor held in place by insulators and that is used to transmit high frequency
television signals.
BOX
- a square or rectangular marker which may be sized and placed on a VIA-170 overlay,
in any number or in combination with other markers.
CALIBRATION
- the process of determining the scalar magnitude of each row or column of pixels. An
operator places an object of known size in the field of view and enters the object’s
dimensions. The VIA-170 calculates the corresponding constants, or scale factors.
CCIR
- the specifications describing monochrome television electrical performance standards
issued by the International Radio Consultative Committee, an international telecommunications standards-setting body of the United Nations. The CCIR standard is used
throughout most of Europe and Africa (except France and parts of northern Africa).
CHORD
- a line segment which joins any two points of an area's perimeter.
CIRCLE
- a circle or elliptical marker. In the VIA-170, circles may be sized into perfect or oval
shapes. Such markers may be placed in an overlay in any number and in combination
with other markers.
CIRCLE DISPLAY
- the feature in the VIA-170 which allows users to display a graphic of a circle while
users place points to define that circle. This display will change slightly as each point is
added. Turning on the display can help users align the edges of the circle against the
object in the field of view. Turning off the circle display may be preferred when users
need an unobstructed view of the video image.
CIRCUMFERENCE
- the distance of a line bounding a circle or any approximately circular area.
CLEAR
- the action key which allows operators to clear the overlay of all markers at once. A
single active marker will remain on screen.
CONTROLLER
- a device which controls the creation, positioning and storage of markers or measuring
lines on a VIA-170 overlay, such as a keyboard, light pen or knob controller.
COORDINATES
- a set of numbers used to specify the location of a point on the video monitor.
COUNT
- to add up units or groups of units for a total.
CROSS HAIRS
- a symbol consisting of two perpendicular lines. In the VIA-170, there is a cross hairs
pointer used in marking. In measuring, a cross hairs cursor is used to designate points
of measurement.
128 - Appendices
Boeckeler VIA-170
CROSSLINE
-- two perpendicular lines that intersect each other at their centers. Similar to cross
hairs, but larger. In the VIA-170, crosslines extend to the edges of the screen.
CURSOR
- in the VIA-170, a symbol used to designate the menu options or a point of measurement, such as used in defining endpoints of a chord. A cursor is also used to position
straight and drawn lines.
DRAW
- the capability to freehand draw or write on a VIA-170 marker overlay. Drawn lines
may be combined with other markers on a single overlay.
EIA RS-170
- the specifications describing monochrome electrical performance standards issued by
the Electronic Industries Association (EIA), also referred to as RS-170 (Recommended
Standard # 170). The EIA standard is used in North and South America, Japan and
most of Asia.
FIELD OF VIEW
- the live video image which can be observed within the boundaries of the video monitor.
GRAY LEVEL
- the degree of white, gray, or black used to display the VIA-170 measuring lines and
graphics on the video screen. When the VIA-170 is used with RGB or Y/C cameras and
monitors and with VIA-RGB or VIA-Y/C interfaces, gray level controls become color
selection controls, used to create brightly colored markers and measuring lines.
GRID
- a marker consisting of several evenly spaced parallel lines. Vertical grids consist of
vertical lines, horizontal grids consist of horizontal lines, and box grids consist of both
horizontal and vertical lines.
LINES, MARKING
- graphic lines which are superimposed on a video image and positioned by operators
to mark or annotate the object in the field of view. Unlike measuring lines, marking lines
are anchored, stored and erased. Once anchored, marking lines may not be repositioned, although they may be erased or cleared from the overlay.
LINES, MEASURING
- graphic lines which are superimposed on a video image and positioned by operators
to measure the object in the field of view. Measuring lines are not erasable, nor can
they be anchored, like marking lines. Measuring lines are always positionable.
MARKER
- graphic symbols (pointers, scales, grids, boxes, circles, date/time labels, freehand
drawings and text) which are superimposed on a video image and positioned by
operators to mark or annotate the object in the field of view. Once anchored, markers
may not be repositioned, although they may be erased or cleared from the overlay.
NONVOLATILE MEMORY
- memory which retains information whether or not power is being supplied to the unit.
Boeckeler VIA-170
Appendices - 129
NTSC
- the North American National Television System Committee 525-line color-TV standard. The NTSC standard is used in North and South America, Japan and most of Asia.
OVERLAY
- a combination of one or more graphic symbols placed on the screen using the marking or measuring capabilities of the VIA-170.
PAL
- the European 625-line, 25-frame color TV Phase Alternate Line standard. The PAL
standard is used throughout most of Europe and Africa (except France and parts of
northern Africa).
PIXEL
- condensed form of the phrase "picture element" used to describe a unit of visual data,
usually applied to a video screen or video overlay.
POINTERS
- markers used to point at or draw attention to important aspects of a video image. In
the VIA-170, these include arrows, cross hairs, pointed cross hairs, small boxes, small
circles, target boxes and target circles.
PREFERENCE ARROW
- a symbol which indicates the option chosen by users before performing actual operations, as in the AREA/CHORDS Mode, which offers three preference options (area,
chord 1, chord 2). The position of the arrow designates which option is active.
PROTECTED OVERLAYS/CALIBRATIONS
- a feature of the VIA-170 which allows a password holder to protect markers that have
been anchored in an overlay and/or calibrations that have been set. This avoids an
unintentional erasure of markers or an unintentional re-setting of calibrations. Protection is turned on or off in the Security Menu, which must be entered with the password.
If a password was never initially entered in the Security Menu, markers and calibrations can still be protected from an inadvertent change. However, any user is free to
select protection options in the Security Menu.
RADIUS
- the length of a line which extends from the center point of a circle to the periphery of
that circle.
RGB
- a video signal which is segregated into three or four picture component signals: red
(R), green (G) and blue (B) signals. Synchronization information may be included with
the G signal or may be separate.
RS-170
- see EIA RS-170.
RS-232C
- the specifications describing serial interface communication standards.
SCALE
- a linear marker with two end points expressing one unit of measure. In the VIA-170,
scales may be sized vertically or horizontally, to any length. Scales may be placed on
130 - Appendices
Boeckeler VIA-170
an overlay in any number and in combination with other markers. Placed end to end, or
in combination with cross hairs markers, scales may be used to create custom rulers on
an overlay.
SCALE FACTOR
- a constant generated by the VIA-170 during calibration. The constant represents the
incremental value by which the measurement display changes when a measuring line
is moved one pixel width.
STAGE MICROMETER
- a precision reference tool used for calibration, with graduation marks engraved or
photographically reproduced on glass; usually used with a microscope.
STATISTICS
- the collection, organization, and interpretation of numerical data, especially data
gathered from a series of samples. In the VIA-170, statistics are calculated based on
the measurements that users have entered into a Statistics Table. Up to 500 values
can be entered into the Statistics Table. From these measurements, or values, the
VIA-170 determines and displays the total count, mean, low value, high value, standard
deviation and range.
TAG
- an alphabetical character generated by the VIA-170 which is used by the operator to
label a cell or particle in the COUNT Mode.
TEXT BLOCK
- one line of text generated by the VIA-170 keyboard and displayed on the marker
overlay. A text block is positionable until it is anchored.
VERTEX
- the point at which the two sides of an angle intersect.
VIDEO SOURCE
- a device from which the VIA-170 receives a video image. The VIA-170 incorporates
the image with its graphic overlay capabilities, then outputs the image and graphics to
the corresponding monitor. Examples of video sources include VHS recorders/players,
macroscopic cameras and microscopic cameras.
VOLATILE MEMORY
- memory which is only retained when a continuous source of power is supplied to the
unit.
X-AXIS
- horizontal measurement.
Y-AXIS
- vertical measurement.
Y/C
- a video signal which is segregated into two picture component signals: luminance or
YIQ/YIV (Y) signals and chrominance or color (C) signals.
Boeckeler VIA-170
Appendices - 131
ABOUT BOECKELER INSTRUMENTS, Inc.
From its beginnings as a small manufacturer of precision micrometer heads in the early
1940s to its cutting edge precision measurement products today, Boeckeler Instruments, Inc., has remained a cornerstone of innovation and reliability in the worlds of
science and industry.
Representing a team well-rounded in design, development, and service, Boeckeler
products have long been applied to fields as diverse as precision machining, aviation
and aerospace, electronics, biomedical research, clinical diagnostics, metallurgy, and
forensics.
Aas Boeckeler grew over the decades, its creative staff introduced such innovations as
a toolmaker’s microscope to handle shop floor capacity with watchmaking precision and
speed; digital micrometers and readouts; digital filar eyepieces for microscopic measurement; video image analysis systems and auto positioning systems for microscope
stages controlled by computer.
If you are interested in Boeckeler’s other products or in keeping informed of
Boeckeler’s latest developments, contact a Boeckeler dealer in your area or call
Boeckeler Instruments, Inc., in Tucson, Arizona at (800) 552-2262 or (520) 573-7100.
Other Fine Boeckeler Products
* VIA-®20 Video Pointer
* VIA-®30J Video Crossline Generator
* VIA-®50 Video Image Marker
* VIA-®100 Video Measurement System
* VIA-®110 Video Hardness Measurement System
* VIA-®150 Video Image Marker-Measurement System
* Digital Readouts
* Digital Micrometers
* Mechanical Micrometers
* Linear Measuring Systems
* Digital Dial Indicators
* Digital Filar Eyepieces
* Digital Linear Gages
* Auto Positioning Systems
* Pointmaker® PVI-70 Multiple-sync Video Marker
* Pointmaker® PVI-80 Multiple-sync Video Marker with Keyboard
132 - Appendices
Boeckeler VIA-170
INDEX
A
action keys 34, 46, 56, 61, 127, 126
active marker 46, 47, 118, 127
to eliminate from overlay 118
align markers 3
align mode 6, 9, 40, 48, 49
w/ protected markers 40
anchor 33
anchored marker 56, 1257
erasing an 33, 47
anchoring button
on mouse pen 12
angle
definition of 127
measurement 15, 59, 61
angles
defining 89
determining other 92
measuring. See four point angle: measuring
angles/circles
key 10, 54, 56, 57, 59, 64, 65, 89, 95
apex (vertex) 1257
appendices 119
area
chords
mode 10, 15, 17, 54, 56, 57, 60, 61, 64, 65, 101
chords transmit 65
definition of 127
measurement 102
arrow
pointers 5
ascii data 65, 113, 125
autointercept
while drawing 5, 41, 50
axis switch
knob controller 14, 15, 76, 77
B
background color
for text 45
backspace key 43
barrel button
light pen 12, 18
Boeckeler VIA-170
basic (computer) 116
battery backed up memory 6
baud rate 49, 66, 113, 127
bloom 122, 127
bnc coaxial cable 23, 122, 127
boeckeler instruments iv, 3, 121, 130
interfaces 4, 43
boxes
in marking 33
sizing 9
brightness
blooming 122, 128
change. See color: change
monitor 121, 122
button
data 14, 16
transmit 14, 115, 116
C
calculations
for determining angles 92
calibration 57, 70, 1286
key 49
label 50, 55, 70, 73
of light pen 13
calibration number 3, 6, 55, 57, 70, 74, 79, 82
selection 10, 35
calibration of via-170
general procedures 56
calibration protect 65, 66, 71, 74. See also
protected calibrations
camera
connector 23
cancel full erase 64
carriage return
for rs-232c 49, 66
ccir 128
ccir/pal
standards 53, 70
change color 43
key 43
change line pattern
key 10
Appendices - 133
chord
definition of 126
measurement option 60, 104
circle 128
measurement 15, 17, 54, 59, 61
circles
in marking 33
sizing 9
circumference
definition of 128
measurement of 95, 97
clear 64
protected markers 47, 64
end key 10, 47, 63, 64, 100
offset 10, 48, 64
overlay 64, 128
statistics table 10, 68, 69, 79, 81, 84, 87, 89,
95, 102. See also: statistics table
tags 100
menu 100
clear points
from angle / circle measurements 59, 94, 97
color
change 6, 43, 122
color & brightness
set 9, 43. See also brightness: change
change for protected markers 45
compare switch
knob controller 14, 15, 80, 82, 86, 88
comparison measurements 80, 82, 86
composite video 4, 23, 122, 130
installation 23, 29
connector
9-pin 117
control key 10, 39, 61, 62
controller
definition of 128
knob
features 15, 17
coordinates
definition of 128
copyright iv
message 24, 28
count
definition of 128
mode 10, 15, 17, 54, 55, 56, 57, 59, 61, 62, 64,
65, 98
cross hairs 128
cursor 126
pointer 5, 33, 36, 128
crosslines 3, 9, 33, 35, 39, 129
set style 39
cursor 46, 129
active 47
134 - Appendices
cross hairs (measuring)
custom rulers 36
cycle backwards
key combination 36
90, 128
D
data
button 14, 16
transmitting 115, 117
date/time
label 33, 42
protected 42
set 42
show 9
decimal point 70
to change 72
defining
an angle
ways to. See angles: defining
delete key 10
demonstration of features 8, 10, 50, 67
display marker coord. 38
display marker size 6
/coordinates key 10, 37, 49
draw
mode 12, 33, 41, 129
drawing instrument 18, 101
drawings
too many 124
dual voltage switch 24, 28, 121
E
eia rs-170 129. See also eia rs-170
enter key 10, 11, 38, 40, 48, 50, 64, 67, 98
enter statistic
insert key 33, 40, 57, 59, 63, 69, 81, 83,
86, 89, 93, 97, 103
erase 3, 9, 33, 47, 64
erase markers 6, 47, 63
extension driver 29. See also light extension driver
F
field of view 70, 129
fine control
in sizing 39
freehand
drawing
writing 33, 41, 101
function key
keyboard 56
function keys
keyboard 9
fuse 121, 125
Boeckeler VIA-170
G
graphics on/off
key 10, 35, 65
gray level 6, 129. See also brightness: change
grids
in marking 9, 33, 36, 129
H
help 4, 8, 50, 67
horizontal (X)
measurement 129
I
implied angle 89
implied circle 95, 97
insert key
enter statistic 63. See also enter statistic: insert
key
installation
lpx light pen extension 29
problems 121
with composite systems 23
with rgb systems 26
with y/c systems 26
interface
rgb 26
interfaces
for color 4
J
joystick controller 4, 9, 16
comparison mode 82, 86
connection 24, 27
default to 24
K
keyboard 4, 9, 34, 56
function key 36, 56
knob controller 4, 9, 14, 24, 76, 77, 80, 86
connection 23, 27
features 14, 15, 17
L
label
calibration 50, 55, 66, 70, 73
units 55, 66
left/right
positioning 46
light pen extension driver 29
light
pen 4, 9, 12, 13, 14, 17, 19, 33, 41, 98, 122
Boeckeler VIA-170
calibration 13, 41
pen tip 13
line
pattern
measuring 3, 57, 79
thickness
cursor 40, 41
in drawing 41
lines
key 40
marker 129
measurement 129
list of figures vi
M
magnification
power of 70, 73
marker
active 33, 118, 127
anchored 127
coordinates
transmitting 115
display coordinates of 6
display size of 6, 10
keys 34, 36
mode 3, 34
overlays
ten 3
to anchor 33
marker display menu 37
markers 3, 9, 33, 129
blooming 122
combination of 33
erase 6
hide/show 6
protected. See: protected markers.
too many 124
marking
general procedures 35
measure
key 58, 79, 98
measure w/statistics mode 7, 10, 55, 57, 58,
59, 60, 63, 65, 66, 68, 69, 81, 83, 86, 89,
93, 97, 103, 104
measurement
display
transmitting 115
keys 34, 56
mode 34, 53, 56
modes
seven 3
ten 3
x-axis 79, 98, 101
y-axis 81
Appendices - 135
measuring
general procedure 56
measuring line
pattern 57, 58, 79, 81, 84
key 58
measuring lines
positioning 75
memory 6
overflow 124
menu colors 45
mouse controllers
other 4, 19, 24, 27
mouse pad 18
mouse pen 9, 18, 27, 41
N
next overlay
page down key 10, 57, 64
nonvolatile memory 6, 129
ntsc video
standards 53, 130
number
and text keys 45, 67
calibration. See select calibration #: key
O
offset
clear (in align mode) 48
coordinates. See offset: display (in align mode)
display (in align mode) 40
units (in align mode) 40, 50
ohm position 122
options
preference 130
overlay 63, 130
home key 10, 47, 63, 65
overlays
graphic 33
P
pal 128
pal/ccir
standards 53
path length 6, 12, 18, 41
pattern
measuring line 58, 79
pixel 35, 38, 53, 70, 128
placing a marker 35
point-to-point
measurement 7, 54, 58, 61, 87
pointer
cross hairs 128
136 - Appendices
pointers
in marking 3
key 9, 36, 48, 65
positioning
keys 10, 11, 36, 38, 40, 46, 61, 62, 67, 76
measuring lines 75
positioning lines
proper procedure 76, 77
power supply 24, 33, 121, 122
preference options 60, 101, 104, 105, 130
prev overlay
page up key 10, 57, 63
program
to test rs-232c port 116
protected calibrations 65, 66, 71, 74, 128
protected markers 3, 6
protected overlay 36, 38, 39, 40, 41, 42, 47,
48, 49, 130
and align mode 40
and clear function 47, 64
and color changes 45
and date/time label 42
and undo function 47, 63
R
radius
definition of 130
measurement of 95
resolution 72
restart command 126
reverse toggle 69
rgb 4
definition of 130
installation 26
interface 27, 43
with sync on green 43
rs-170. See eia rs-170
rs-232 7, 113, 114, 130
basic operation 113
connector pin-out 117
menu 49, 66, 114
parameters 49, 66
serial port 49
set up 10, 114
test port 116
transmit key 10, 57, 65. See also rs-232:
transmit key
transmitting data 34, 115
rulers
creating custom 36
S
scalar numbers
53
Boeckeler VIA-170
scale factor 53, 70, 131
scales
in marking 9, 33, 130
scales/grids 9
scales/grids key 9, 36, 39
security menu 47, 48, 49, 65, 67, 71, 74
select calibration #
key 66, 84, 87, 90, 96, 102
menu 49, 66, 82, 84, 87, 90, 96, 102
select button
joystick controller 16
knob controller 14
select calibration #
key 10, 35, 57
send statistics summary option
rs-232 menu 115
set color & brightness 9, 43, 45
set crossline style 39
set date/time
key 10, 42
set menu colors 45
set rs-232. See rs-232c: parameters
shapes
key 9, 38, 41, 42, 58, 60
show date/time
key 9, 42
show marker size / coordinates
key 35, 37, 39, 41
show marker size/coords.
key 9
show/hide circle
while measuring 68, 96
show/hide angle
while measuring 68, 90
size
in fine increments 39
objects/text 9, 35, 36, 39, 46
key 35, 38
space bar
on keyboard 11, 42, 43, 68, 72, 91,
107, 108, 109, 114, 115
stage micrometer 50, 71, 75, 76, 77, 131
statistics
clearing 69
definition 131
display 55, 58, 59, 60, 79, 81, 83, 84,
86, 87, 89, 93, 95, 97, 101, 103
entering 14, 16, 63
measure mode 7
transmitting 66 See also: transmit statistics
statistics summary
in table 65, 66, 68, 69, 113
statistics table 4, 10, 55, 57, 58, 59, 63,
66, 68, 69, 79, 81, 83, 84, 86, 87, 89, 93, 95, 97,
Boeckeler VIA-170
102, 103
T
tag 98, 99, 131
tags
combination of 100
technical assistance 121
terminator carriage return
(rs-232c) 49, 114
text
and number keys 5, 33, 45, 67
block of 131
typing 5
text background 45
text block 39, 45
text size
key 45
three point angle
measurement 93
timer
modes (both) 54, 61, 62, 65
w/markers 54, 60, 108
w/xy measurement 54, 57, 60, 61, 62, 107
tip button
light pen 12, 13
toggle backwards
key combination 36
track ball
mouse pen 18
transmit
button 116
joystick 16
knob controller 14
marker coordinates 115
measurements 57, 115
statistics 66, 69, 113.
troubleshooting guide 24, 28, 121
typed
text. See text: typing
U
undelete 3, 6, 47, 63, 64
in statistics table 69.
undo
delete key 10, 63, 64, 98, 103, 106
protected markers 47, 63
units
label 55
V
vertex
of angle
89, 129
Appendices - 137
vertical (y)
measurement 129
via-® 3
via-® 170 3
video
copy 46
image 24
image markermeasurement system 3
printer 118
sources 131
standards 4
volatile memory 131
W
warning message 47, 64, 66, 67,
68, 69, 81, 83, 86, 89, 93, 97, 103, 123
X
x- and y-axis
measurement 6, 54, 58, 61, 62
x-axis
measurement 54, 58, 61, 62, 79, 98, 101, 131
Y
y-axis
measurement 54, 58, 61, 62, 81, 131
y/c (s-video) 131
color problems (some systems) 43
installation 26
interface 43, 129
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