GEOPAK V8i Survey Training - Ohio Department of Transportation

GEOPAK V8i Survey Training - Ohio Department of Transportation
GEOPAK V8i Survey Training
Ohio Department of Transportation
October, 2012
Ohio Department of Transportation
GEOPAK V8i Survey Training, October, 2012
The information provided in this manual is a product of ODOT and is not to be sold or otherwise
distributed for profit. If this manual is copied proper acknowledgment is to be given to GEOPAK
Corporation and Bentley Systems, Incorporated for its content in this manual. There are no expressed
or implied warranties concerning the accuracy, completeness, reliability or usability of this information.
Further, ODOT assumes no responsibility for any incorrect results or damage resulting from the use of
this information. All users shall expressly hold ODOT harmless from any liability or loss due to any
computer or software generated problems associated with this product or manual.
GEOPAK is a registered trademark of GEOPAK Corporation. MicroStation is a registered trademark and
ModelServer is a trademark of Bentley Systems, Incorporated. Windows and Windows NT are registered
trademarks of Microsoft Corporation. All other brands and products names are trademarks of their
respective owners. © GEOPAK Corporation.
October, 2012
Ohio Department of Transportation, GEOPAK V8i Survey Training
Table of Contents
1
2
3
Introduction ................................................................................................................ 1-1
1.1
Introduction ................................................................................................................1-1
1.2
Course Outline .............................................................................................................1-1
1.3
CADD Standards and Support .......................................................................................1-1
1.4
Provided Data..............................................................................................................1-2
1.5
Project Workflow Overview .........................................................................................1-3
Field Codes and COGO Element Names ........................................................................ 2-1
2.1
Survey Points...............................................................................................................2-1
2.2
Field Codes ..................................................................................................................2-2
2.3
Survey Chains ..............................................................................................................2-2
Directory Structure ...................................................................................................... 3-1
3.1
4
DGN File Names ........................................................................................................... 4-1
4.1
5
6
ODOT Standard Directory Structure..............................................................................3-1
ODOT Standard DFN File Names ...................................................................................4-1
Accessing GEOPAK Survey ............................................................................................ 5-1
5.1
Accessing GEOPAK Survey ............................................................................................5-1
5.2
The Main Tool Palette ..................................................................................................5-2
5.2.1 Project Menu............................................................................................................. 5-2
5.2.2 Dataset Menu............................................................................................................ 5-3
5.2.3 Visualization Menu.................................................................................................... 5-3
5.2.4 The Geometry Menu ................................................................................................. 5-4
5.2.5 The Geometry Tools Menu ....................................................................................... 5-4
5.2.6 The Geometry Utilities Menu.................................................................................... 5-5
5.2.7 The DTM Menu ......................................................................................................... 5-6
5.2.8 The Plans Preparation Menu..................................................................................... 5-7
Survey Project Preferences .......................................................................................... 6-1
6.1
GEOPAK Survey Project Preferences .............................................................................6-1
6.2
The Project Tab............................................................................................................6-2
6.2.1 Settings...................................................................................................................... 6-2
6.2.2 User ........................................................................................................................... 6-4
6.2.3 Configuration ............................................................................................................ 6-5
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8
6.3
The Dataset Tab ...........................................................................................................6-6
6.3.1 Settings...................................................................................................................... 6-6
6.3.2 Data Source ............................................................................................................... 6-7
6.3.3 Obs File ...................................................................................................................... 6-8
6.3.4 Configuration .......................................................................................................... 6-10
6.4
The Visualization Tab ................................................................................................. 6-11
6.4.1 Settings.................................................................................................................... 6-11
6.4.2 Mapping .................................................................................................................. 6-12
6.4.3 Configuration .......................................................................................................... 6-13
6.5
The Geometry Tab ..................................................................................................... 6-14
6.5.1 Settings.................................................................................................................... 6-14
6.5.2 Configuration .......................................................................................................... 6-15
6.6
The DTM Tab ............................................................................................................. 6-16
6.6.1 Settings.................................................................................................................... 6-16
Preferences Dialog Behavior ........................................................................................ 7-1
7.1
The SDP and SPP File ....................................................................................................7-1
7.2
Opening the Preferences Dialog with no Project selected ..............................................7-1
7.3
Opening the Preferences Dialog with a Project Open ....................................................7-3
Creating a New Survey Project ..................................................................................... 8-1
8.1
9
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Creating a New Survey Project .....................................................................................8-1
Creating a New Survey Dataset .................................................................................... 9-1
9.1
Downloading Raw Data................................................................................................9-1
9.2
Creating a New Dataset ...............................................................................................9-3
9.3
The GEOPAK Survey Editor ...........................................................................................9-8
9.4
Reduce Dataset ......................................................................................................... 9-10
9.5
Survey Reports .......................................................................................................... 9-13
10
Survey Mapping, Levels, and Scaling ............................................................. 10-17
10.1
11
The SMD File ........................................................................................................... 10-17
10.1.1 Model Annotation Scale...................................................................................... 10-18
10.1.2 Survey Data Levels .............................................................................................. 10-21
10.1.3 Feature Code Errors ............................................................................................ 10-23
Point and Chain Editing Tools .......................................................................... 11-1
11.1
Point Edit .................................................................................................................. 11-1
11.2
Chain Edit .................................................................................................................. 11-2
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11.3
Crossing Chains .......................................................................................................... 11-3
11.4
Update OBS and XYZ .................................................................................................. 11-4
12
DTM Creation ................................................................................................. 12-1
12.1
Build DTM from Survey Data ...................................................................................... 12-1
12.2
Load DTM Features .................................................................................................... 12-3
13
Processing Additional Datasets ....................................................................... 13-1
13.1
14
Initial Considerations ................................................................................................. 13-1
Moving Projects to the Server ......................................................................... 14-1
14.1
15
Moving Data from a Lap-Top to the Server ................................................................. 14-1
Trimble Link Registration ................................................................................ 15-1
15.1
16
Downloading direct from the Data Collector to GEOPAK ............................................. 15-1
Processing ASCII Data Sources......................................................................... 16-5
16.1
Processing ASCII Files with Reduced Coordinates ........................................................ 16-5
16.2
Adding Attribute Data to the Survey Data................................................................... 16-4
16.3
Adding Linking Codes to the Survey Data .................................................................... 16-5
16.4
Processing the ASCII File ............................................................................................ 16-6
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Ohio Department of Transportation, GEOPAK V8i Survey Training
1 Introduction
1.1 Introduction
This one day training course is intended to assist the Surveyor with the setup, creation, and processing
of a new GEOPAK Survey project following the standards defined in the ODOT CADD Engineering
Standards manual. The class is intended to be an overview of the survey data process and not a
complete reference guide. For additional information regarding specific GEOPAK software functions,
see the GEOPAK online help.
1.2 Course Outline
During this training course we will process the survey data for a small ODOT project on the Ohio State
Fairgrounds in Franklin County. The dataset includes survey data from two separate days of field
collection. The following topics are covered in the class:










Field Codes and COGO Element Names
Standard Project Directory Structure
Standard Design File Names
Survey Project Preferences
Creating a new Survey Project
Processing a Survey Dataset
Survey Mapping and MicroStation V8i Levels
DTM Creation
Processing Additional Datasets
Moving Project Data from a Lap-top to the Server
This class is eligible for 7.0 hours of CPD credits. Please note that final determination on what qualifies
for CPD credit ultimately lies between the license holder and the State Board for Professional Engineers
and Surveyors.
1.3 CADD Standards and Support
ODOT CADD Standards for MicroStation and GEOPAK are maintained and distributed by the Office of
CADD and Mapping Services. Each ODOT District, and Central Office, maintains a copy of the ODOT
CADD Standards on a network drive, usually the “i” drive, in the “ODOTStd\V8iStd\” sub-directory.
The Office of CADD and Mapping Services maintains a MicroStation/GEOPAK support website on the
ODOT website. To access the ODOT MicroStation and GEOPAK Support web pages, point your browser
to the following URL:
http://www.dot.state.oh.us/Divisions/Engineering/CADDMapping/CADD/Pages/default.aspx
1 - Introduction
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The ODOT CADD Engineering Standards manual is available in Adobe Acrobat PDF format on the ODOT
Website at the following URL:
http://www.dot.state.oh.us/Divisions/Engineering/CADDMapping/CADD/Pages/CADDManual.aspx
CADD Standards specific to GEOPAK Survey are available at the following URL:
http://www.dot.state.oh.us/Divisions/Engineering/CADDMapping/CADD/Pages/GEOPAKDownloads.aspx
This training guide is available online in Adobe Acrobat PDF format at the following URL:
http://www.dot.state.oh.us/Divisions/Engineering/CADDMapping/CADD/Pages/GPKManual.aspx
The Design Resource Reference Center is a centralized reference center to help locate online or printed
material. Additionally, several mailing lists are available to keep you informed about updates to ODOT
standards. A CADD Standards mailing list is also available. Visit the Design Resource Reference Center
at the following URL:
http://www.dot.state.oh.us/drrc/Pages/default.aspx
1.4 Provided Data
The Survey raw data for the training class is available online at the following URL:
http://www.dot.state.oh.us/Divisions/Engineering/CADDMapping/CADD/Pages/GPKManual.aspx
Two data files are provided in Trimble .dc format as listed below:


Day1.dc
Day2.dc
No other files, other than ODOT CADD Standards, are required for the training class.
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1.5 Project Workflow Overview
The workflow processes followed in this manual are recommended as a best practice. The following are
examples of recommended workflow processes:
For New Projects:
 Create Project Directory
 Create Survey Basemap
 Open new Survey Basemap
 Activate GEOPAK
 Access GEOPAK Survey
 Set Survey Preferences
 Create New Survey Project
 Recheck Survey Preferences
 Create New Data Set
 Check and edit Data Set
 Import, Reduce and Map Data Set
 Visual checks of Points and Survey Chains
 Edit Points and Survey Chains as needed
 Run Crossing Chain
 Build DTM
 Visual checks of DTM and Contours
For Existing Projects:
 Open existing Survey Basemap
 Activate GEOPAK
 Access GEOPAK Survey
 Open Existing Survey Project
 Check Survey Preferences
 Create Additional Data Sets
 Check and edit Data Set
 Import, Reduce and Map Additional Data Sets
 Visual checks of Points and Survey Chains
 Edit Points and Survey Chains as needed
 Run Crossing Chain
 Build DTM
 Visual checks of DTM and Contours
 Merge Tins
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1 - Introduction
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2 Field Codes and COGO Element Names
2.1 Survey Points
All survey data processed through GEOPAK Survey is stored in a GEOPAK Coordinate Geometry (COGO)
database. This database is given a .gpk file extension. The database shall follow the naming
convention defined in the ODOT CADD Engineering Standards manual, Section 306.1.
When survey data is processed, each field shot is stored as a Survey Point in the .gpk file. Each Survey
Point must have a unique name. GEOPAK COGO element names have specific rules that must be
followed:
Point names can be alphanumeric, but not numeric-alpha. For example, R2 is supported,
however, R2D2 is not. If the point is all numeric, there is a maximum of 8 characters. If it is
alpha-numeric, there is a maximum of 15 characters. No special characters (such as hyphen,
percent, slash) are supported.
Curves, Spirals, Lines, Chains, Parcels, Profiles, and Survey Chains can have alphanumeric names
with a maximum of 15 characters. Underbars and hyphens are supported, but no other special
characters should be used.
Section 306.2 of the ODOT CADD Engineering Standards manual details standard GEOPAK COGO
Element names including field collected data.
Survey shots are to be given the two character prefix “SV” followed by a numeric value. For example:
SV1000, SV1001, SV1002, etc…
Monumentation shots can be given the two character prefix “MN” followed by a numeric value.
2 – Field Codes and COGO Element Names
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2.2 Field Codes
Field codes are used by GEOPAK to define how the survey data will be drawn in MicroStation. For
example, the field code “TP” is used to designate a telephone pole. When the field data is processed
through GEOPAK, the telephone pole code is plotted as a MicroStation cell as shown below:
Notice that the point name and elevation is plotted along with the telephone pole symbol.
The ODOT Standard field code list is available in Adobe .pdf format on the ODOT Website at the
following URL:
http://www.dot.state.oh.us/Divisions/Engineering/CADDMapping/CADD/Pages/GEOPAKDownloads.aspx
2.3 Survey Chains
A series of Survey Points representing a linear feature can be connected together as a Survey Chain.
Linking codes are used to designate how individual field shots are connected to form Survey Chains.
Linking codes are special characters pre-pended to the feature in the field as the data is collected.
GEOPAK provides the following default linking codes:
BL* - Begin Line
EL* - End Line (not necessary)
CL* - Close Figure
PC* - Begin Curve (tangent to previous line)
OC* - Point on Curve (begin/end non-tangent curve)
PT* - End Curve (tangent to next line)
CC* - Point of Compound or Reverse curve
CF* - Curve Fit (spline fit to irregular curves)
To data collect a series of 3 points representing a fence line; each point would be coded as follows in the
field (Note, the field code FEN is used for a Fence Line):
BL*FEN SV1000
FEN SV1001
EL*FEN SV1002
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Mapping codes are optionally user definable. ODOT has substituted the following values for the default
mapping codes:
1 = BL*
2 = EL*
3 = OC*
4 = CL*
5 = CC*
If you elect to use the substitution linking codes, the fence line above would be coded as follows:
1 FEN SV1000
FEN SV1001
2 FEN SV1002
When the survey data is processed, GEOPAK will automatically generate the names for the Survey
Chains. Therefore, there is not a standard definition for Survey Chain names in the ODOT CADD
Engineering Standards manual.
Survey Chains are named according to the feature code name used to collect the shots defining the
chain. In the above example, a Survey Chain named “FEN” will be created in the .gpk file. If a second
fence line is collected, GEOPAK will increment the name by 1. For example, a second fence line would be
named “FEN-1” in the .gpk file. Subsequent fence lines would be incremented by 1.
IMPORTANT: Survey Chains are connected by the order of point numbers. The point numbers do not
have to be sequential, but they must be in increasing order. Since the actual mapping is produced by the
reduced coordinate file and not the raw data file, the point numbers determine the sequence, not the
order of field location (order of shots in raw data file).
Combining codes and line descriptions within a single point description is supported. For example a
single field shot could be coded as follows to begin two separate Survey Chains:
BL*EP BL*DR SV2112
The above example begins an EP (Edge of Pavement) line and a DR (Driveway) line. Point SV2112 is
stored at the location of the shot with the field code EP. Since each survey shot can only have one field
code, an additional “CALC” point is stored at the same location with the field code DR.
CALC points are used for shots that are double coded as in the example above. The raw data for the shot
is duplicated and stored with a point named CALCXX, beginning with CALC1. This allows the double
coded shots to represent two features with different geometry codes.
2 – Field Codes and COGO Element Names
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3 Directory Structure
3.1 ODOT Standard Directory Structure
As ODOT continues to move towards accepting electronic submissions it is becoming increasingly
important to follow CADD Standards more closely. Consultants are now being scoped to provide
MicroStation and GEOPAK deliverables on all Minor and Major projects. Section 1500 of The Location
and Design Manual – Volume 3, Highway Plans and Section 500 of the ODOT CADD Engineering
Standards manual provides details for the electronic data formats to be delivered to ODOT. This
electronic data will be passed on to the contractor via the ODOT website pre-bid for project estimating
purposes. Ultimately the data will be passed to the construction contractor for use in the field.
As the originator of the project data, it is important for survey personnel to start the project using a
standard directory structure. It is no longer enough to think of your specific Office or District as the end
user of the data. The ODOT CADD Engineering Standards manual, Section 302 Project Directory
Structure, defines the standard project directory structure to be used on ODOT projects.
Two directory structures are detailed for Minor and Major projects. The definition of a Minor and a
Major project can be found in the ODOT Project Development Process manual. This training class will
use the directory structure for a Minor project.
Access Section 302 of the ODOT CADD Engineering Standards manual from the ODOT Website to
answer the following questions:
1. What is the name of the main directory on the file server to house the projects?
2. What is the name of the parent directory used to store the project information?
3. Which Figure in the ODOT CADD Engineering Standards manual defines the Minor
project directory structure?
4. Which sub-directory is used to house the Survey data?
5. Which sub-directory is used to download the raw data?
ODOT provides a Visual Basic program to create the standard project directories. The program can be
accessed internally from the following location:
i:\ODOTStd\V8istd\vba\ODOT_Directory.exe
When the program is initiated, the dialog shown on the following page is opened.
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Project Type
Two options are supported as shown below.
The Minor Project is used to create a directory structure for minor projects as defined in the
ODOT Project Development Process manual.
The Major Project is used to create a directory structure for major projects as defined in the
ODOT Project Development Process manual.
PID Number
Key-in the PID Number for the project. The PID Number is used as the name of the main directory for
the project.
Project Location
Select the Drive and Path where the new project directory structure will be created. In the example
above, the project will be created in the following location:
C:\GPKclass\FRA\
Select the Create Project Folders button to initiate the process.
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The PID Number directory and all sub-directories are created as shown below. Complete information on
the standard project sub-directories can be found in the ODOT CADD Engineering Standards manual.
The content of the Survey sub-directory is shown below:
Bridge Sub-Directories
The Bridge Sub-Directories options are used by the bridge designer to create separate sub-directories
for each bridge on the project. These directories are not used to house any survey information and will
normally be created by the bridge designer at a later date.
Take the following steps to create the project directories for the training class:
1. Create the following directory:
c:\GPKclass\FRA\
2. Use the ODOT_Directory.exe application to create the project sub-directories in the
c:\GPKclass\FRA\ directory with a PID number of 11111.
3 – Directory Structure
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4 DGN File Names
4.1 ODOT Standard DFN File Names
The ODOT CADD Engineering Standards manual, Section 304 File Naming Conventions, defines the
standard MicroStation design file names to be used on ODOT projects.
Access the Section 304 of the ODOT CADD Engineering Standards manual from the ODOT
Website to answer the following questions:
1. What is the name of the basemap design file for existing ground survey information?
2. Which sub-directory in the standard project directory structure is used to house the existing
ground survey basemap?
ODOT provides a Visual Basic application to assist with the creation of MicroStation design files using the
ODOT file naming convention. The program can be accessed from the MicroStation pull-down menu by
selecting ODOT > File Management > New Design File.
When the program is initiated, the dialog shown below is opened.
If the program has been previously run, the Parent Folder will default to the last project used.
Otherwise, it will display No Folder Selected as shown in the example above.
Use the Select Parent Folder button to select the PID directory where you wish to create new design
files. The Browse for Folder dialog is opened as shown on the following page.
4 – DGN File Names
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Once the folder has been selected, the dialog will expand as shown below.
The Category option is used to select the design file type you wish to create. For each selected Category,
there is a corresponding list of design files. The available file types for the Basemap Design Files
category is shown in the example above.
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To create an Existing Ground Survey basemap design file, toggle the Category to Basemap Design Files,
and then select the check box next to Existing Ground Survey as shown below. The dialog will display
the name of the new file to be created in red.
The Comments field can be used to add an optional description to the file. See the ODOT CADD
Engineering Standards manual, Section 304.4 Supplemental Description Guidelines for more
information.
Select the Create Files button to initiate the process. The selected design files are created in the subdirectory indicated in the dialog. Once the file has been created, the dialog will now show that a file
exists in the \survey\basemaps\ sub-directory.
4 – DGN File Names
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The MicroStation Manager dialog can be configured to display the Title and Comments properties as
shown below. See the ODOT CADD Engineering Standards manual, Section 304.4 Supplemental
Description Guidelines, for details.
Use the ODOT_Files application to create a new Survey Basemap for the project by taking the
following steps:
1. Which directory should you identify as the Project Directory for the ODOT_Files
application?
2. Which seed file should you use for the new design files?
3. Create the Survey Basemap design file. Be sure to assign a Comment for the file.
4. Configure Windows Explorer to display the “Title” and “Comments” fields (see the ODOT
CADD Engineering Standards manual, Section 304.4).
5. Open the newly created file in MicroStation.
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5 Accessing GEOPAK Survey
5.1 Accessing GEOPAK Survey
To access GEOPAK Survey, open the survey basemap and select Applications > GEOPAK > Survey >
Survey from the MicroStation pull down menu as shown below.
The Survey toolbar, shown below, is opened.
To open the individual Tool Boxes for the items listed on the Survey toolbar, click on Tool Boxes and
toggle on/off as shown below.
The Main tool palette contains all the sub tool palettes listed in the Tool Boxes pull down menu. This
training guide will document using the Survey toolbar to access the various GEOPAK Survey functions.
5 – Accessing GEOPAK Survey
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5.2 The Main Tool Palette
When the Main toolbox option is toggled on, the dialog shown below is opened.
Each icon represents a separate tool palette as shown on the following pages.
5.2.1 Project Menu
The project menu includes the tools shown below.
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5.2.2 Dataset Menu
The dataset menu includes the tools shown below.
5.2.3 Visualization Menu
The Visualization menu includes the tools shown below.
5 – Accessing GEOPAK Survey
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5.2.4 The Geometry Menu
The Geometry menu includes the tools shown below.
5.2.5 The Geometry Tools Menu
The Geometry Tools menu includes the tools shown below.
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5.2.6 The Geometry Utilities Menu
The Geometry Utilities menu includes the tools shown below.
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5.2.7 The DTM Menu
The DTM menu includes the tools shown below.
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5.2.8 The Plans Preparation Menu
The Plans Preparation menu includes the tools shown below.
5 – Accessing GEOPAK Survey
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6 Survey Project Preferences
6.1 GEOPAK Survey Project Preferences
Before you create a new Survey project, you must first set the default Survey Preferences. Select Project
> Preferences… from the Survey toolbar as shown below to access the Default Preferences dialog.
The Default Preferences dialog show below is opened.
Important Tip! Always close the active Survey Project before creating a new Survey project.
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Always review the Default Preferences settings prior to creating a new project to ensure that the correct
values are used for the project you are about to create.
The next few sections will detail the steps to configure the Default Preferences dialog to ensure
compliance with ODOT’s standard directory structure requirements. See the GEOPAK on-line help for
details on all other parameters not covered in this document.
6.2 The Project Tab
When the Project tab is selected, the Default Preferences dialog appears as shown below.
Three options are supported on the left portion of the dialog:



Settings
User
Configuration
6.2.1 Settings
When the Settings option is selected, the Project tab appears as shown above.
Name
This field is used to key-in the Name that will be used for the creation of a new Survey Project
file. The Survey Project file (.prj file) associates projects with their prospective job number,
user, working directory, survey and coordinate geometry database, and other associated project
files. The file name should be set to the PID number for the project as defined in section 307 of
the ODOT CADD Engineering Standards manual.
Directory
This key-in field is used to identify the Directory where the .prj file will be stored. For ODOT
projects, this directory should be set to the \survey sub-directory as shown in the example
above.
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Pressing the Select Project Directory button
which the desired directory may be identified.
invokes the Select Project Directory dialog, in
Description
This field is used to specify an optional Description to be associated with the project.
Job Number
This field is used to specify the Coordinate Geometry database (.gpk file) that will be used with
this project. The GPK file is used to store all data that is processed through GEOPAK Survey or
GEOPAK COGO commands. The Job Number can be 1-3 alphanumeric characters.
Note: The sample data was surveyed at the Ohio State fairgrounds in Franklin County. The Job
Number selected in this case was the first three digits of the word “Fairgrounds”. Section 306 of
the ODOT CADD Engineering Standards manual details the ODOT standards naming convention
for the Job Number.
The Select Project Job button
can be used to select a previously created .gpk file.
Job Directory
This key-in field is used to identify the directory where the .gpk file resides. For ODOT projects,
the Job Directory should always be assigned to the \geopak sub-directory as shown in the
example on the preceding page.
Pressing the Select Job Directory button
invokes the Select Project Directory dialog, in
which the desired directory may be identified.
Global Working Directory
The Global Working Directory is used to identify the project directory where the various files
associated with a GEOPAK Survey project are stored. The Global Working Directory should
always be assigned to the \survey sub-directory as shown in the example in the preceding
page.
If the Project Directory field is left undefined, the .gpk file will be stored in the directory
specified by the Global Working Directory.
If the Job Directory field is left undefined, the .prj file will be stored in the directory specified
by the Global Working Directory.
If the Project Directory, Job Directory, and the Global Working Directory fields are all left
undefined, GEOPAK will store all files related to the survey project in the same directory as the
currently opened design file.
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6.2.2 User
When the User option is selected, the Project tab appears as shown below.
Name
Key-in field to identify the Name of the Survey Project user. The Name should consist of
alphanumeric characters with no spaces or special characters. Typically ODOT users should use
their log-in name for the GEOPAK User Name setting.
Full Name
The Full Name field further identifies project users and will be displayed when users are being
selected as a project is opened.
Description
The Description field further identifies the user by associating an optional description with a
particular user.
OP Code
The OP Code field sets the GEOPAK Operator Code used for all coordinate geometry operations
during this session. The Operator Code, along with the Job Number, will also be used whenever
an input file is created by the software. The Operator Code can be a maximum of two
characters.
Password
Passwords are NOT to be used or set for any ODOT Projects. If a password was set and
forgotten, no one at ODOT or GEOPAK could remove the password.
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6.2.3 Configuration
When the Configuration option is selected, the Project tab appears as shown below.
Interface
Pull down menu allows user to select how the Survey Menu is displayed.
Auto Open Last Project
The Auto Open Last Project toggle allows GEOPAK to automatically open the last active project
when GEOPAK Survey was invoked. This command is useful if you are working on only one
project at a time.
Auto Open First Project Found
The Auto Open First Project Found toggle allows GEOPAK to automatically open the first project
found in the working directory when GEOPAK Survey is invoked.
Create Default Project If None Found
The Create Default Project If None Found toggle allows GEOPAK to automatically create a
project if no project is found in the working directory when GEOPAK Survey is invoked. As an
ODOT Best Practice recommendation DO NOT check this toggle.
Close Project Manager When Exiting
The Close Project Manager When Exiting toggle allows GEOPAK to close the active project when
GEOPAK Survey is exited. As an ODOT Best Practice recommendation this toggle should be
checked.
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6.3 The Dataset Tab
When the Dataset tab is selected, the Default Preferences dialog appears as shown below.
Seven options are supported on the left potion of the dialog:







Settings
Data Source
Linking Codes
Obs File
Control File
Reduction
Configuration
6.3.1 Settings
When the Settings option is selected, the Dataset tab appears as shown above.
Name
Key-in the dataset Name to be used as the default name when a new dataset is created. The
default name is “DAY1” as shown in the example above. The Name can be changed when each
new dataset is created. The Name field should be limited to alphanumeric characters with no
special characters or spaces used other that a hyphen “-” or an underscore “_” character.
Description
Key-in the dataset Description to be used as the default when a new dataset is created. We
recommend leaving this field blank in the Default Preferences dialog. A description can be
entered when a new dataset is created within a Survey project.
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Output Directory
The Output Directory is used to identify the directory where output information (i.e., reports,
OBS and control files, etc.) related to the dataset is placed. For ODOT projects, this directory
should be set to the \survey\rawdata sub-directory as shown on the previous page.
Use dataset name as output sub-directory
When toggled on, a directory of the same name as the dataset is created in the directory
specified by the Output Directory, and used for all output files created by the reduction process.
We recommend always leaving this option toggled on.
6.3.2 Data Source
When Data Source is selected, the Dataset tab appears as shown below.
Data Source
The drop down list contains options for importing/downloading files into GEOPAK. Options are
Empty, OBS file, Data File, Data Collector and ASCII files.
Collector Type
The drop down list contains options for different types of survey instruments. The setting should
be Trimble for ODOT applications.
For more information on GEOPAK setup for Data Collector download directly into GEOPAK see Section 15
of this guide.
For information processing ASCII data sources, see Section 17 of this guide.
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6.3.3 Obs File
When the Obs File is selected, the Dataset tab appears as shown below.
Edit description code substitutions
When depressed activates a window to equate alpha codes to numeric codes. The default
values are shown below.
Remove Duplicate Shots from OBS when converting
When toggled on, the last occurrence of the shot is used to create the point in the GPK.
Note: Do not use with multiple shots to traverse control points!
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Force Survey Chains to be Created with No GAPS
When toggled on, survey chains of the same feature code are created without gaps (separate
survey chains), regardless of the linking code. A gap occurs when the End Line linking code is not
added before another Begin Line linking code with the same feature.
example:
BL*EP, EP, EP, EP, BL*EP, EP, EP
vs.:
BL*EP, EP, EP, EP, EL*EP, BL*EP, EP, EP, etc...
Auto increment Duplicate Chain Names when converting
Check on this option to add a number to the end of the duplicate Survey Chain Names.
Renumber Points By:
Many times raw data is collected and the point numbers may overlap with points already in the
project. If this is the case and it is known before processing, then GEOPAK can change the point
numbers in the following ways:
Add Prefix to points
A field is supported for any alphanumeric prefix. The Point Range can be utilized for a
block of points or all points.
Add a value to points
The value in the field is added to the specified point range, either all points or a block.
None
Point numbers are not changed from the raw data.
The user may need to "re-import" raw data after detecting duplicated points. It is perfectly
acceptable to return to the data collection dialog and import the data again and re-number or
adjust the point names.
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6.3.4 Configuration
When Configuration is selected, the Dataset tab appears as shown below.
Auto Open Last Dataset
When toggled on, last dataset used by GEOPAK Survey will open.
Import After Reduction
When toggled on, Points and Survey Chains will automatically be imported to the .gpk file after
reduction.
Store Elements into GPK
When toggled on, Points and Survey Chains will automatically be imported into the .gpk file.
Auto Open ASCII Dialog
When toggled on, reduction reports, closure reports, error ellipses created by GEOPAK during
the reduction of survey data will automatically be shown.
Show Other User Datasets
When toggled on, any Datasets created by other users will be shown in the open Dataset
window.
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6.4 The Visualization Tab
When the Visualization tab is selected, and the Settings option is selected, the Default Preferences
dialog appears as shown below.
Four options are supported on the left potion of the dialog:
 Settings
 Mapping
 Configuration
 Cross Section
6.4.1 Settings
When Settings is selected, the Visualization tab appears as shown above.
SMD Feature File:
This option is used to specify the SMD file to be used for mapping the survey field codes to
MicroStation. i:\ODOTStd\V8istd\GEOPAK\Survey\ODOT.smd has been configured
as the default SMD file for ODOT projects.
Plot Scale:
Indicates the scale at which Points, Symbols, Survey Chains, ect, will be mapped into the
drawing. The Plot Scale should always be set to 1 for ODOT projects. The active Model
Annotation Scale is used to control the display of the graphics. See Section 10 for details.
Apply Best Feature Match
When toggled on, GEOPAK will match the field codes found in the raw data to the feature codes
defined in the SMD file in the event that there is not an exact match. For example, the SMD file
contains the code “EP” for an edge of pavement. The field data may include multiple field codes
named “EP1”, “EP2”, etc… With Apply Best Feature Match toggled on, each of these surveyed
lines will be matched to the feature code “EP” in order to define how the lines will be visualized
in MicroStation.
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6.4.2 Mapping
When Mapping is selected, the Visualization tab appears as shown below.
Name / Number
When toggled on, the point name / number information is placed in the drawing on the
appropriate level.
Elevation
When toggled on, the point elevation information is placed in the drawing on the appropriate
level.
Description Label
When toggled on, the point description information is placed in the drawing on the appropriate
level.
Comment
When toggled on, the point attribute information is placed in the drawing on the appropriate
level.
An example of the Name / Number, Elevation, and Description for the feature code “T” is
shown below:
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6.4.3 Configuration
When Configuration is selected, the Visualization tab appears as shown below.
Auto Draw Mapping
When toggled on, survey points and chains will be automatically placed into the drawing
on the appropriate levels.
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6.5 The Geometry Tab
When the Geometry tab is selected, and the Settings option is selected, the Default Preferences dialog
appears as shown below.
Two options are supported on the left potion of the dialog:
 Settings
 Configuration
6.5.1 Settings
When Settings is selected, the Geometry tab appears as shown above.
Unit Parameters
Used to specify input and output unit definitions and if optional the displayed precision values
for the measurement units.
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6.5.2 Configuration
When the Geometry tab is selected, and the Configuration option is selected, the Default Preferences
dialog appears as shown below.
Redefine Elements in GPK
When toggled on, sets the redefine parameter in the Classic Cogo dialog in GEOPAK. As an ODOT
best practice recommendation, leave this option toggled off.
Input Directory (Optional)
This option is used to specify the directory to save COGO input files. If no directory is specified,
the working directory is assumed. For ODOT projects, this should be set to the
\geopak\input sub-directory.
Output Directory (Optional)
This option is used to specify the directory to save COGO output files. If no directory is specified,
the working directory is assumed. For ODOT projects, this should be set to the
\geopak\output sub-directory.
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6.6 The DTM Tab
When the DTM tab is selected, and the Settings option is selected, the Default Preferences dialog
appears as shown below.
6.6.1 Settings
When Settings is selected, the DTM tab appears as shown above.
Determine DTM Inclusion from:
Specifies how the Build DTM from Survey Data module controls the inclusion or exclusion of
Survey Points and Survey Chains collected in the field.
All Points / Chains Included
All surveyed points and chains will be included in the DTM. Survey Chains will be
included as break lines.
Feature Table (SMD)
The DTM inclusion is determined by feature definition in the SMD file. As an ODOT best
practice we recommend using this option.
Attribute Field
The DTM inclusion is determined by the Attribute field of the individual Survey Points
and Survey Chains.
Dissolve Option:
Specifies how the Build DTM from Survey Data module controls the creation of individual
triangles in the TIN Model. Options are None, Sliver and Side (preferred). If the Side option is
used the maximum triangle side length can be input.
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7 Preferences Dialog Behavior
7.1 The SDP and SPP File
Once the Default Preferences have been defined, you are ready to create a new GEOPAK Survey project.
The behavior of the Default Preferences dialog is not intuitive and is dependent on the context in which
the dialog is opened; therefore some discussion of how the dialog works is warranted before we
proceed to creating the Survey Project.
There are two types of preference files used by GEOPAK Survey:
SDP File
The .sdp file is a seed preference file that is used to create a project specific preference file (.spp
file). The seed preference file is defined by a configuration variable and is located in the following
directory:
i:\ODOTStd\V8iStd\geopak\survey\odot.sdp
SPP File
The .spp file is a project specific preference file that is used to store the preferences for a specific
project. This file is created when a new Survey project is created and is stored in the \survey
folder of your project. Every GEOPAK Survey project will have a .spp file.
7.2 Opening the Preferences Dialog with no Project selected
The title bar portion of the Survey toolbar lists the name of the currently opened Survey project. In the
example below, no project has been opened.
When no project has been selected and the Default Preferences dialog is accessed by selecting Project >
Preferences… from the Survey toolbar, the following actions take place:

The seed preference file, ODOT.sdp, is copied to the following directory:
c:\Program Files\Bentley\GEOPAK\V8.11\bin\odot.sdp
This file is then opened in the Default Preferences dialog for editing as shown on the following
page.
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
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When the user selects the OK button after editing the Default Preferences, the dialog settings
are saved in the following files:
c:\Program Files\Bentley\GEOPAK\V8.11\bin\gpref.rsc
c:\Program Files\Bentley\GEOPAK\V8.11\bin\cogopref.rsc
The values saved in these two resource files are used to create the .spp file when a new
project is created.
Important! After editing the preferences the first time you should precede directly to creating
the GEOPAK Survey Project. If you select Project > Preferences… again before creating a new
project, the default seed preference file odot.sdp is copied to the c:\Program
Files\Bentley\geopak\bin directory overwriting all previous edits.

When the Default > Save option is selected from the Default Preferences dialog, the edits are
permanently saved to the copy of odot.sdp in the bin directory. If the user selects Project >
Preferences… again, the Default Preferences dialog will retain the previous edits to the file.
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7.3 Opening the Preferences Dialog with a Project Open
The title bar portion of the Survey toolbar lists the name of the currently opened Survey project as
shown in the example below.
When a project has been opened and the user selects Project > Preferences… the Project Preferences
dialog is opened as shown below. The .spp preference file associated with the current project is
opened.
Important Note: Selecting Default > Save (or Save As…) will save the current settings to the seed
preference file (c:\Program Files\Bentley\geopak\V8.11\bin\odot.sdp), not to
the current .spp file. Select the OK button to save changes to the current .spp file.
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8 Creating a New Survey Project
8.1 Creating a New Survey Project
After the Default Preferences have been set, you are ready to create a new GEOPAK Survey project.
From the Survey toolbar, select New… as shown in the example below.
The Project New dialog shown below is opened.
The dialog is populated with the values that are currently stored in the Default Preferences resource file
(.sdp). Select OK to create the new project.
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You are prompted to create a new GPK file as shown below. Select Yes to create the file.
Notice the Survey toolbar shows the current project and user in the header.
The following files are created:



GEOPAK Survey Project file: \FRA\11111\survey\11111_Survey.prj
GEOPAK Survey Preferences for the project: \FRA\11111\survey\11111_Survey.spp
COGO Database for the project: \FRA\11111\GEOPAK\jobFAI.gpk
The software also creates the projdbs directory which is added to the \survey sub-directory as
shown below. This directory also contains a sub-directory for each user on the Survey project.
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Take the following steps to create the survey project for the training class:
1. From the Survey toolbar, select Project > Preferences… to set the preference values that will
be used for the new project.
o
According to the ODOT CADD Engineering Standards manual, what should you name
the Survey Project (.prj) file?
o
According to the ODOT CADD Engineering Standards manual, what should you use
as the name for the Job Number?
o
What values should you assign for the following directories:
Project Directory?
Job Directory?
Global Working Directory?
Dataset Output Directory?
Geometry Input Directory?
Geometry Output Directory?
2. From the Survey toolbar, select Project > New… to create the new Survey project.
3. Review the project preferences to ensure that the proper values are assigned for the project
by selecting Project > Preferences… from the Survey toolbar. Be sure to close the Project
Preferences dialog box by selecting the OK button, not Default > Save.
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9 – Creating a New Survey Dataset
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Ohio Department of Transportation, GEOPAK V8i Survey Training
9 Creating a New Survey Dataset
9.1 Downloading Raw Data
Each time you download from the Trimble data collector the raw data files (.dc) should be stored in the
project file under the \survey\rawdata\ folder.
Download the raw data for the training class from the ODOT CADD Support Website.
1. Open Internet Explorer and access the following website:
http://www.dot.state.oh.us/Divisions/Engineering/CADDMapping/CADD/Pages/GPKManual.aspx
2. Select the link to download the training files. A portion of the webpage is shown below.
The File Download dialog will open. Select Open as shown below.
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From the WinZip dialog, select Extract to save the files in the \survey\rawdata\ subdirectory for the project.
From the Extract dialog, set the Extract To: location as shown below. Select Extract to save
the files in the selected sub-directory.
3. Close WinZip when you are completed.
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9.2 Creating a New Dataset
To create a new dataset and process the raw data, select Dataset > New… from the Survey toolbar as
shown below.
The Dataset New dialog, shown below, is opened.
Name
The Name of the dataset is user definable. The Name will also be used as the name of the subdirectory if the Use dataset name as output sub-directory option is checked. Each set of raw
data that is processed for the project should have a unique name assigned. The Name field
should be limited to alphanumeric characters with no special characters or spaces used other
that a hyphen “-” or an underscore “_” character.
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Description
This key-in field is used to enter an optional description for the dataset.
Data Source
A variety of data source options are supported in GEOPAK Survey. For this example the file has
been downloaded beforehand outside of GEOPAK. An example downloading through GEOPAK is
shown in Appendix A.
Output Directory
Select the directory where output information for this dataset (i.e., reports, OBS and control
files) is placed. For ODOT Projects, this should be set to the \survey\rawdata sub-directory
as shown on the previous page.
Use dataset name as output sub-directory
When toggled on, a directory of the same name as the dataset is created, and used for all
output files. When not toggled on, the specified Output Directory is used. If the Output
Directory field is left blank, the Working Directory is used. For ODOT projects, this option should
be toggled on.
Files(s) to Use
The buttons to the right of the Files(s) to Use list box have the following functions:
Dataset Add Source File to List
Dataset Add Source Files to List
Dataset Remove Source Files from List
Dataset Move Files Up in List
Dataset Move Files Down in List
Select the Dataset Add Source File to List button to add one or more data files to the Files(s) to
Use list. The Select Files dialog shown on the following page is opened.
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The selected file is added to the list as shown below.
Press OK to start processing the dataset.
During processing, you may receive the following Information dialog.
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After the dataset has been created, the Survey dialog now displays the name of the active dataset as
shown in the example below.
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Several files are created, as shown below, when a new dataset is created.
A brief description of the main files is included below:
Observation file (.obs)
When the dataset is created, the original raw data is converted to an .obs file and a .ctl file.
The .obs file is the base raw data format used by GEPOAK Survey when processing raw data.
GEOPAK Survey mapping codes (BL*, EL*, PC*, PT*, OC*, CC*, CF*) are converted to Survey
Chains in the .obs file.
Control File (.ctl)
For each .obs file, there is a corresponding .ctl file. The .ctl file contains the control
points for the dataset, the control coordinates, any fixed bearings/azimuths, and the constants
for these control points. The constants include State Plane Zone, Horizontal Datum, and Vertical
Datum.
Adjusted Coordinates (.xyz)
For each .obs file, there is a corresponding .xyz file. The .xyz file contains the adjusted
coordinates for the dataset.
.cgr
This is an intermediate raw data file created by the GEOPAK data collection program.
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9.3 The GEOPAK Survey Editor
After creation of the Dataset, if changes need to be made to the Raw Data file you need to access the
GEOPAK Survey Editor as shown from the Survey toolbar below.
The GEOPAK Survey Editor, shown on the following page, has not changed to dramatically since GEOPAK
2001. If edits need to be made to the OBS file (Raw Data file in GEOPAK format) they are made here.
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See the GEOPAK online help for information on the GEOPAK Survey Editor.
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9.4 Reduce Dataset
To reduce the Dataset, populate the GPK file and map elements into MicroStation, access Dataset
Reduce as shown below.
The Dataset Reduce window will open, as shown below.
Adjustment Method
The default Adjustment Method is selected by the Project Preferences dialog at the creation of
the project; however it can be modified at this point. The options shown below are supported
by GEOPAK Survey.
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Import After Reduction
Toggle this option on to automatically import the survey data into the .gpk file after the data is
reduced. The default value for this option is set in the Project Preferences at the creation of the
project, but can be modified at this point.
Process
This starts the Dataset Reduction Process.
When the Process button is selected, the following actions occur:

The Survey Data is reduced according to the selected Adjustment Method.

Several reports are generated in the sub-directory for the dataset. The Data Reduction Report
(.rpt) is automatically opened in a MicroStation text editor as shown on page 49.

If Import After Reduction is toggled on, the Survey data is imported into the .gpk file. If any
duplicate control points are encountered in the dataset, the user will be presented with the
dialog shown on the following page.
If Import After Reduction is toggled off, the user must select Dataset > Import to GPK from the
Survey toolbar to initiate the import process.

If the user has toggled on Auto Draw Mapping After Process or Import in the Project
Preferences dialog, the Survey Points and Survey Chains are mapped into the current
MicroStation design file.
If Auto Draw Mapping After Process or Import is toggled off, the user must select Visualization
> Visualize from the Survey toolbar to map the data.
If any feature code errors occur during processing, the Alert dialog shown below will open to notify you
of how many errors were encountered.
Feature code errors occur when the field code name included for a specific shot in the raw data does
not match any of the feature codes in the .smd file. Select OK to create the error report. See page 55
for more information on feature code errors.
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The Data Reduction Report will show results of the reduction process. Feature code errors are shown
here as well as information concerning coordinate and elevation ranges. Sample information is shown
below.
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9.5 Survey Reports
After the data has been reduced, several reports are generated as for the dataset. These reports can be
reviewed by opening the Survey Reports dialog by selecting Dataset > Review Reports > Dialog from the
Survey toolbar.
Each report is a separate text file stored in the folder for the dataset. A brief summary of the reports is
included below. See the GEOPAK online help for more information.
.CGR
Intermediate raw data file created by the GEOPAK Data Collection program. Contains angle and distance entries.
.COR
The Horizontal Network Coordinates report gives the final 2D least squares adjusted latitude and longitude.
.CTL
Control file
.DAT
Data file containing formatted DTM data utilized as a prerequisite for building Triangles.
.GEN
This report gives the abstraction information, repetition errors, comparisons of lines measured multiple times, and preliminary 2D
traverse closures.
.GEO
The Horizontal GEOPAK Coordinates report gives the final 2D least squares adjusted latitude and longitude.
.LSA
The Abstracted Horizontal Measurement report gives the 2D survey measurement input for the 2D least squares adjustment
.MAN
The Build Manuscript report provides all applicable reports and generates a table of contents.
.OBS
Observation file containing raw data. This is the base raw data file used by GEOPAK when processing raw data.
.PRJ
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SDMS data file.
.XYZ
The Adjusted Coordinates report gives the final 3D coordinates, attributes and descriptions.
.1D
The Vertical Adjustments report gives the elevation least squares report.
.2D
The Horizontal Adjustments report gives the 2D least squares data.
.2SD
The Horizontal Error Estimates report gives the error estimate for the measurement in the 2D adjustment
.SUM
The summary report gives the delta distances, angles and elevations of the control survey.
.RPT
The survey report file created by the no adjustment, compass rule, transit rule and transit rule adjustment options.
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Process the survey data for Day 1 by taking the following steps:
1. Create a new dataset for the survey data
from Day 1 of the data collection.
What should you name the dataset?
Which sub-directory will be used to store
the dataset?
2. Reduce the data.
After processing the dataset from the first day of ground
survey, the mapping for the fairgrounds project should
appear as shown at right.
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10 Survey Mapping, Levels, and Scaling
10.1 The SMD File
When the survey data is mapped into MicroStation, the SMD Feature File is used to control how each
field code will be drawn. Select Project > Preferences… from the Survey menu to access the dialog
shown below.
The default feature file is located in the following folder:
I:\ODOTstd\V8istd\geopak\survey\ODOT.smd
Plot Scale
The value of the Plot Scale item is used to control the size of the cells, text, and custom line
styles used in the mapping of the survey data. The base scale is defined for each feature code in
the SMD file. The Plot Scale should normally be set to a value of 1.0 for all ODOT projects. The
display scale for text, cells, and custom line styles is controlled by the Model Annotation Scale.
See section 10.1.1 for additional details.
Apply Best Match Feature
When the Apply Best Match Feature toggle is active, the best match feature from the SMD
Feature File is used to map the survey data. For example, feature EP is defined as the edge of
pavement in ODOT.smd. If 3 different pavement lines need to be located in the field, the
different edge of pavement chains can be coded as EP1, EP2, and EP3 in the field data. When
the data is mapped by GEOAPK Survey, these features are matched to the EP feature in the
database.
It is important for the user to understand the hierarchy when utilizing the Mapping tool. If a
Feature Code is found within the specified SMD Feature File, its parameters are utilized. If it is
not found, GEOPAK determines if the Apply Feature Best Match toggle is active. If the toggle is
active, GEOPAK scans the SMD Feature File for a best match feature. For example, if the feature
code is EP13 and there is no feature in the database named EP13, GEOPAK truncates the feature
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to EP1 and scans again. If it is still not found, it truncates once more to EP. If a match is found,
then it is used. If not, it truncates to E and scans once more. When no match is found or if the
toggle was not active, the next option in the hierarchy is to use the default feature as defined in
the SMD Feature File.
Use Shared Cells
This option can be used to place cells mapped by GEOPAK Survey as shared cells. The option
should never be toggled on for ODOT projects.
10.1.1 Model Annotation Scale
When the survey data is mapped using a Plot Scale value of 1 as recommended in the previous section,
the cells, text, and custom line styles will appear very small in the design file as shown in the example
below.
The display of these features can be controlled by the Model Properties dialog. To access the Model
Properties, select File > Models from the MicroStation pull-down menu. The Models dialog shown on
the following page is opened.
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Select Edit Model Properties to access the dialog shown below.
Set the Annotation Scale value to control the display of cells and text in the design file. In the example
above, the Annotation Scale value is set to Engr 1:20 to display the cells and text appropriately for a 20
scale drawing. This value can be changed at any time as desired by the user.
The Line Style Scale option is used to set the display scale for custom line styles. Two options are
available as shown below.
The Global Line Style Scale option is used to set the value for line styles separately from the Annotation
Scale value. When this option is selected, a key-in field is provided to enter the line style scale factor.
The Annotation Scale option is used to set the line style display scale equal to the Annotation Scale
value. Select this option for ODOT projects.
After setting the scale values for the model, the custom line styles are automatically displayed using the
Model parameters as shown in the example on the following page. However, text and cells placed by
GEOPAK Survey are not automatically scaled until the annotation scale is manually applied to the survey
mapping.
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To apply the model annotation scale to the cells and text, key in the following command in MicroStation:
Annotationscale Add
This command will apply the annotation scale to all the cells and text in the model. The cells and text will
now take on the active model annotation scale value as shown below.
After the annotation scale has been applied to the cells and text in the file by use of the Annotationscale
Add command, you do not need to run the key-in command again for the cells and text to honor
changes to the model annotation scale. Subsequently changing the Model properties will result in
instant changes to the cells, text, and line styles. However, if additional survey data is mapped to the
same design file, it will be necessary to run the key-in command again in order for the new data to
honor the current annotation scale value.
The display of the text, cell, and line styles can be controlled uniquely for reference attachments. For
example, the Survey Basemap file can be set with the model annotation scale value necessary for the
Surveyor. Designers may reference the file and set the model annotation scale for a different value as
needed for the plans without altering the survey basemap.
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10.1.2 Survey Data Levels
Each feature defined in the SMD file is configured to plot cells, text, and lines on the appropriate level in
MicroStation. In addition to the symbology representing each individual Survey Point and Survey Chain,
GEOPAK Survey will optionally include information on several levels depending on the settings of the
Project Preferences as shown below.
The designer or surveyor may wish to toggle on/off. In the MicroStation Level Display dialog shown
below, the filter “Survey” has been applied to display the SV group of levels.
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The following levels are not typically shown on a set of ODOT construction plans and should be toggled
off before plotting the plan documents:
SV_X_Break_Lines
SV_X_Center_of_Pavement
SV_X_Edge_of_Slip
SV_X_Random_Point
SV_X_Shot_Marker
SV_X_Text_Comment
SV_X_Text_Description
SV_X_Text_Elevation
SV_X_Text_Name
SV_X_Toe_of_Slope
SV_X_Top_of_Bank
SV_X_Void_Area
MicroStation v8 also allows you to view information about a specific element in the design file simply by
floating the cursor over the element. If GEOPAK Survey is activated with the Survey Project open,
additional information about the element is displayed as shown below.
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10.1.3 Feature Code Errors
If there are any feature code errors in the dataset, the Survey Points and Survey Chains are drawn as
follows:

Survey Points with feature code errors are drawn using the feature default_point as
defined in the odot.smd file. This places the cell “X” and the point number on level
GK_Visualization as shown in the example below.

Survey Chains with feature code errors are drawn using the feature default_chain as
defined in the odot.smd file. This places a linestring on the level GK_Visualization
representing the location of the Survey Chain.
Feature code errors can be corrected using the Point Edit and Chain Edit tools described in section 11 of
this training guide.
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11 Point and Chain Editing Tools
11.1 Point Edit
Select Geometry > Points > Edit from the Survey toolbar to access the Point Edit dialog shown below.
The Point Edit dialog can be used to edit, create, and delete Survey Points.
All edits are made to the Survey Points stored in the .gpk file. See the GEOPAK online help for
complete information.
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11.2 Chain Edit
Select Geometry > Chains > Edit from the Survey toolbar to access the Chain Edit dialog shown below.
The following editing functions are available:






Connect/Merge Chains
Close Chain
Transpose Chain
New Chain
Delete Chain
Insert/Delete Points
All edits are made to the Survey Points and Survey Chains stored in the .gpk file.
See the GEOPAK online help for a complete description of the Chain Edit dialog functions.
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11.3 Crossing Chains
Before creating the DTM File for a project, it is good practice to check for crossing break lines in the
survey data. Crossing break lines can lead to unpredictable results in the completed DTM surface. To
check for crossing break lines, select Geometry > Chains > Crossing Chains from the Survey toolbox to
access the Edit Crossing Chains dialog shown below.
All edits are made to the Survey Chains stored in the .gpk file.
See the GEOPAK online help for details running the Edit Crossing Chains dialog.
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11.4 Update OBS and XYZ
Edits preformed on Survey Points and Survey Chains are stored in the .gpk file and are not reflected in
the raw data files for the dataset. The Update OBS and XYZ command should always be used to update
the raw data after performing edits to the Survey Point and Survey Chain definitions. Select Dataset >
Update OBS and XYZ from the Survey toolbar to access the Updating dialog shown below.
Use the Set Datasets dialog to select the datasets that you wish to update. Select Process to update the
.obs and .xyz files for the selected datasets.
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12 DTM Creation
12.1 Build DTM from Survey Data
To create the DTM model for the existing ground, select DTM > Build DTM > From Survey Data as
shown below.
The Build GEOPAK DTM dialog opens as shown on the following page.
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See the GEOPAK online help for a complete description of all the dialog options. The options
most commonly used are detailed below.
DTM TIN Files
Key-in the name and path for the new TIN file to be created. The ODOT CADD Engineering
Standards manual, Section 305 GEOPAK Digital Terrain Models, details the standard file naming
requirements for GEOPAK Digital Terrain Models (.tin file). The .tin files should always be
stored in the \geopak sub-directory.
Dissolve Option
These dialog boxes are populated by the settings initially set in the Project Preferences dialog.
They can however be changed at this time.
Determine DTM Inclusion from:
This should typically be set to Feature Table (SMD) for ODOT
projects.
Set Search
The Set Search dialog will allow you to select with datasets
to process as shown in the example at right.
Select Process to start the build DTM operation.
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12.2 Load DTM Features
To visualize the DTM information in MicroStation, select DTM > Load DTM Features from the Survey
toolbox.
The Load DTM Features dialog opens as shown below.
The features of the Load DTM Features dialog are discussed on the following pages. See the GEOPAK
online help for more details not covered in this training class.
Load File:
Select the file type that you wish to use to load information from. Supported file types are Data,
TIN, and Lattice.
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Load Button
Select this button to start the drawing or displaying of DTM Features in the active MicroStation
design file.
Display Preferences
Load Option
Features for an entire model can be drawn utilizing the Load Extent option, while partial model
features can be accomplished by the For Fence option. Regardless of the MicroStation Fence
option selected, the overlap method will be utilized. When utilizing the For Fence option, the
MicroStation fence must be placed prior to pressing the Load button. The For View option
draws only features within the current view.
Display Only
When this toggle is activated, elements are not drawn into the MicroStation file and disappear
when an update or view control command is issued. When not activated, elements are drawn
into the file at the specified element symbology.
Graphic Group
When activated, all elements placed within a single processing (each pressing of the Load
button) are placed into a graphic group for easy manipulation and / or deletion.
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Different DTM Features can be loaded, depending on the type of source file selected. The table
below lists which DTM Features are supported for each file type.
DTM Feature
Spots
Break Lines
Extd. Contour Lines
Voids
Islands
Holes
Boundary
Triangles
TIN Hull
Contours
Vertical Edges
Lattice
Lattice X Lines
Lattice Y Lines
DATA
X
X
X
X
X
X
X
TIN
X
X
X
X
X
X
X
X
X
X
LAT
X
X
X
X
X
X
By default, each Feature type is toggled off. The light bulb icons to the right of the dialog
can be used to toggle on/off the display for all features, or selected features. The bright
light bulb (top) activates the display for all features, regardless of their current status. The
darkened bulb (second one down) deactivates the display for all features, regardless of
their current status. The bottom two light bulbs activate and deactivate the currently
highlighted feature.
DTM Feature Symbology List Box
For each Feature, there are element symbology options (Level, Color, Weight, and Style) and
Display mode (on/off). As each Feature is highlighted, its element symbology is displayed
directly below the list box in the symbology box. Note the toggle to the right of the element
symbology indicates whether the display is on (toggle is on) or off (not toggled.) For example,
when Triangles is selected, the dialog is displayed as shown below.
The symbology for the selected item can be changed by double-clicking the symbology box to
access the GEOPAK Set Feature dialog shown on the following page. Floating your cursor over
the symbology box will reveal the current settings for the selected Feature as shown above.
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If the selected feature requires text (i.e., Spots) the dialog dynamically changes as shown below
when the feature is highlighted. Text parameters (Font, Text Height, Text Width, Number of
Decimal Places and Justification) may be defined or modified by double clicking on the
symbology box.
Contours require additional parameters as shown below.
To set the Level, Color, Weight, and Style, two display preference files have been configured
according to ODOT standards:
ODOT_X.lpf - Display preferences for plotting existing DTM features.
ODOT_P.lpf - Display preferences for plotting proposed DTM features.
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To access these files, select File > Open… from the Load DTM Features dialog box. These files are
maintained on the “i” drive at the following location:
i:\v8istd\geopak\road\dtm_prefs\
Plotting Triangles
Triangles can be plotted as shown in the example below. Using the ODOT preference file
ODOT_X.lpf, the triangles are plotted on the level DT_X_Triangles as shown below.
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Plotting Contours
Contours can be plotted at a user defined Minor Interval and Major Interval as shown in the
example below. The intervals used will vary from project to project depending on the vertical
extents of the project data. The Read button can be used to read the Minimum Z and Maximum
Z values from the select TIN file.
Selecting the Major Lines option as shown below allows you to define the level symbology for
the major contour lines. Using the ODOT preference file ODOT_X.lpf, the major contour lines
are plotted on the level DT_X_Contour_Major as shown below.
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Selecting the Major Label option as shown below allows you to define the level symbology for
elevation labels placed on the major contour lines. Using the ODOT preference file
ODOT_X.lpf, the major contour lines are plotted on the level DT_X_Contour_Major as
shown below.
Double-click on the text symbology box to access the GEOPAK Set Feature dialog shown at right
above. This dialog is used to set the text values for the major contour elevation labels.
When the contour labels are plotted, the text size is fixed and does not rescale according to the
Model Annotation Scale. ODOT has provided several preference files to set the symbology and
text size for various scales. Select File > Open to access the Open Preference File dialog shown
below.
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Selecting the Minor Lines option as shown below allows you to define the level symbology for
the minor contour lines. Using the ODOT preference file ODOT_X.lpf, the major contour lines
are plotted on the level DT_X_Contour_Minor as shown below.
Contour elevation labels are not normally placed for minor contour lines, therefore the Minor
Label option is toggled off in ODOT_X.lpf.
An example of the plotted contours is shown below.
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A MicroStation Visual Basic program is available to edit contour labels. To access the Contour
Label Editor, select ODOT > GEOPAK Apps > Contour Label Editor from the MicroStation pulldown menu or key in the following command in MicroStation:
vba load contourlabeleditor.mvba; vba run contourlabeleditor
The Contour Label Editor dialog, shown below, will open.
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Take the following steps to create a TIN file from the dataset for Day1 and display the triangles
and contours in MicroStation.
1. Use the Build DTM > from Survey Data option to generate the triangle model.
According to the ODOT CADD Engineering Standards manual, what should you name the
triangle model?
Which sub-directory should you use to store the triangle model?
2. Plot the TIN Hull for the new triangle model using ODOT_X.lpf to set the symbology.
What level is the TIN Hull plotted on?
3. Plot contour lines for the new triangle model. Use the ODOT_X.lpf preference file to set
the symbology for the contour lines. Set the TH and TW values for the Major Contour Label
appropriately for a 20 scale plan.
What should you use as the TX and TH values for the Major Contour Labels on a 20
scale plan?
4. Run the Contour Label Editor application. Use the Slide Label option to move some of the
major contour line labels that fall on top of other surveyed graphics.
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13 Processing Additional Datasets
13.1 Initial Considerations
Additional datasets can be easily processed within a GEOPAK Survey Project. Before processing a second
dataset, there are a few things to consider.

Section 306.1 of the ODOT CADD Engineering Standards manual requires that all the COGO and
Survey data is contained in one .gpk file per project. Some coordination between the designer
and the surveyor is necessary to ensure that the surveyor is adding additional data to the .gpk
file containing the previous survey information as well as any information that the designer has
added.

Survey point numbers for each dataset should be unique. Be sure to use point numbers in the
field numbers that have not been used in a previous dataset for the project. If you do have
overlapping point numbers between two separate datasets, GEOPAK provide stools to
renumber the points when the data is imported (see page 23), using the GEOPAK Survey Editor
(shown on page 44), or when a dataset is reduced (shown on page 76).

After each dataset is added to the Survey project, it is the surveyors responsibility to generate a
new existing ground triangle model containing the information from all previous survey
datasets.

The new mapping should be drawn into the same design file containing the mapping for
previous datasets. Optionally, the surveyor may elect to create a new survey basemap
containing the mapping for the complete project. If you elect to create a new design file for the
mapping, Section 304.3 of the ODOT CADD Engineering Standards manual details the file naming
convention to be used for design files. The Comments field should be used to describe the
contents of the new file.
IMPORTANT! It is never acceptable to create separate .dgn, .gpk, or .tin files for each separate
dataset and expect the designer to merge the data. It is the surveyor’s responsibility to provide
one complete .dgn file, one complete .gpk file and one complete .tin file for the project, as well
as to review the data for accuracy, before passing the information on to ODOT’s design
personnel.
To process additional datasets, select Dataset > New… from the Survey toolbar to access the Dataset
New dialog shown on the following page.
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The Dataset New dialog will default to the values specified in the Project Preferences. Key-in a new
Name and Description for the new dataset.
The Output Directory will remain the \survey\rawdata\ sub-directory as shown above.
Toggle on the Use dataset name as output sub-directory option to ensure that information for the new
dataset will be contained in a separate sub-directory. In the example above, the following directory will
be created to contain the information for the new dataset:
c:\GPKclass\FRA\11111\survey\rawdata\Data2\
Select the raw data file to use for the dataset by use of the Dataset add source file to list option to the
right of the File(s) to Use list box.
Select OK to initiate creation of the new dataset.
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The next step is to reduce the raw data for the dataset. Select Dataset > Reduce from the Survey toolbar
to access the Reduce dialog shown below.
Select the Adjustment Method, and then select Process. The dataset is imported into the .gpk file and
mapped to MicroStation.
The mapping for both datasets is shown on the following page.
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Note: The text and cells mapped with the second dataset will not take on the active Model Annotation
Scale value until the annotationscale add command is processed for the additional data.
Tip: The annotationscale add command can be used with a MicroStation selection set to limit the text
and cell elements that are affected by the command. Select the desired elements before executing the
annotationscale add command.
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The roadway at the southern end of the project has a gap in the edge of pavement and center of
pavement between the two datasets. The GEOPAK Chain Edit tool can be used to connect the Survey
Chains in order to provide a continuous edge of pavement line in the design file and a continuous break
line for the DTM creation.
The Chain Edit option to Connect/Merge Chains can be used to connect the Survey Chains as shown
below. Select Geometry > Chains > Edit from the Survey toolbar to access the dialog below.
Select Connect/Merge Chains as shown above. Take the following steps to connect the chains.


Select and accept the first Survey Chain
Select and accept the second Survey Chain
The first chain is modified to meet the second chain. The completed edit is shown below.
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To build the DTM file for both datasets, select DTM > Build DTM > From Survey Data from the Survey
toolbar to access the Build GEPAK DTM dialog shown below.
Key-in the DTM TIN Name. In the example below the previously generated TIN model will be
overwritten with the new TIN model.
Select the Set Search button to access the Set Search dialog shown at right. Toggle on both datasets.
Select OK to close the Set Search dialog.
Select Process to generate the new TIN model. Select Yes from the Alert dialog to overwrite the
previously generated TIN model.
The DTM information for the new TIN model can be displayed using the Load DTM Features dialog. An
example of the completed triangles is shown below.
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Take the following steps to process the dataset for day 2 of the data collection.
1. Create a new dataset for day 2.
What should you name the dataset?
Which sub-directory will be used to store the dataset?
2. Reduce the data.
Depending on your project preferences, the data will be automatically imported into the
.gpk file and mapped after reduction. Which design file should you open before
reducing the data?
If you elect to create a new design file for the survey mapping, what should the file be
named according to the ODOT CADD Engineering Standards manual?
3. Use the Pont Edit function to correct the feature code for point SV712. The correct feature
code for the point should be “UMH”.
4. Use the Chain Edit function to join the Survey Chains representing the edge of pavement
and the center of pavement at the southern end of the project.
5. Run the Edit Crossing Chains function to detect any crossing break lines. Be sure to set the
dialog to use both datasets before processing.
6. Run the Update OBS and XYZ function to update the .obs and .xyz files for both
datasets.
7. Generate a TIN model from both datasets.
8. Display the TIN Hull and the Contours for the updated TIN model.
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14 Moving Projects to the Server
14.1 Moving Data from a Lap-Top to the Server
Survey data is often processed on the local drive of a lap-top computer and then later moved to a
network drive for design. Since the Survey Project includes the path for various files and directories, the
Survey Project cannot be used on the network drive unless the paths are edited to reflect the new
location of the project. This section will detail the steps to edit a GEOPAK Survey project after the data
has been moved to a network drive.

Cut or copy the entire project PID number in Windows Explorer as shown in the example below.
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
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Paste the project to the new location.
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
After pasting the project to the new location, delete the .spp file \survey folder from the new
project.

Open the Survey Basemap and activate GEOPAK.

Open the Survey Project by selecting Project > Open… from the Survey toolbar as shown below.
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
Open the project from its new location as shown below.

The Information dialog shown below will appear. Select OK. A new .spp file will be created in
the new directory location.
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Ohio Department of Transportation, GEOPAK V8i Survey Training
GEOPAK Survey will next attempt to open the .gpk file for the project. Since we have not
edited the new .spp file that was created in the previous step, GEOPAK is still looking for the
.gpk file in the old project location.
o
If you have cut the project from the old location, you will be presented with the Alert
dialog shown below. If you get this notice, be sure to select No.
o
If you have copied the project from the old location, and you are on a computer that
does not have access to the old copy of the project, you will be presented with the Alert
dialog shown below. If you get this notice, be sure to select No.
o
If you have copied the project from the old location, and you are on a computer that has
access to the old copy of the project, you will not be presented with the Alert dialog
shown below. GEOPAK Survey will open the old copy of the .gpk file from the old
project location.
We will configure the new .spp file to find the .gpk file in the new directory location in the
next step.

Select Project > Preferences… from the Survey toolbar to access the Project Preferences dialog
shown below. Note that some of the directory fields are still pointing to the old project location
as shown below.
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IMPORTANT! Be sure to review the entire Project Preferences dialog to reset all the values appropriately
for the project.
After you have reconfigured the Project Preferences, select OK to save the .spp file.
Before you resume work on the project from the new directory location, be sure to close the project and
reopen it to ensure that GEOPAK Survey is reading the .gpk file from the correct directory location.
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15 Trimble Link Registration
15.1 Downloading direct from the Data Collector to GEOPAK
A new function in GEOPAK 2004 Edition will allow users to directly download information from the
Trimble Data Collector / ACU into a new dataset. To enable the direct download of the Trimble Data
Collector / ACU the Project Preferences dialog must be first set correctly.
Select Project > Preferences… from the Survey toolbar to access the Project Preferences dialog shown
below.
Under the Dataset tab, you must change the Data Source option to the following options as shown
above:
Data Source:
Collector Type:
Output Format:
Data Collector
Trimble
DC file with observation/vectors
Click OK to accept the changes to the Project Preferences.
To create a new Dataset you follow the same procedures as detailed in Section 9.1. However, the first
time you invoke Dataset > New the user must provide an Authorization Code from Trimble as shown on
the following page.
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Click the link http://www.trimble.com/tlsreg.asp to access the Trimble website as shown on the
following page.
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Fill in all the required fields with the correct information. Click Send Registration Now to submit the
information to Trimble and generate the “Key Code”. After a few moments Trimble will provide the “Key
Code” as shown on the following page.
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Record this code and keep it in a safe place in case the user has need for it in the future.
Return to the GEOPAK Authorize Trimble Link dialog, enter the Key Code, and then click OK as shown
below:
The “Trimble Link software” is then started with Microsoft Active Sync, to download directly from the
Data Collector.
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16 Processing ASCII Data Sources
16.1 Processing ASCII Files with Reduced Coordinates
ASCII files containing reduced coordinates in a variety of formats can be processed with GEOPAK Survey.
This example will demonstrate processing an ASCII input file in comma separated format. The file has an
extension of .csv. A portion of the input file is shown below:
S1529,287455.3108,2328523.138,930.4266,B1
S1530,287470.2649,2328496.21,929.9518,B1
S1531,287482.9901,2328452.72,930.5259,B1
S1532,287483.2131,2328406.983,930.6435,B1
S1533,287489.7669,2328360.305,930.7632,B1
S1534,287483.1994,2328307.19,930.9771,B1
S1535,287492.9888,2328255.364,930.7233,B1
S1536,287464.2501,2328536.345,932.6695,T
S1537,287459.1452,2328538.988,931.2047,X
S1538,287455.075,2328542.754,931.2085,X
Before processing, there are a few things to note about this dataset.

The field personnel used the prefix “S” for the point names instead of the ODOT Standard prefix
“SV” (see section 2.1).

There are no GEOPAK mapping codes used in this dataset (BL*, EL*, CL*, etc… see section 2.3).
However, the survey crew did collect most of the linear features by appending a number to the
feature code to designate separate linear features. For example, the code “B1” is used to
designate a break line.

No attributes are specified for any of the points. Point S1536 in the example above is coded with
the feature “T” to designate a tree. The attributes “SIZE” and “TYPE” are specified in the ODOT
code list. These attributes can be added to the dataset (see Section 16.2 for information).
We’ll open the ASCII file in Microsoft Excel to edit the data before processing with GEOPAK Survey.
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Open the file by toggling the Files of type option to Text Files as shown below.
The .csv file is opened in Excel as shown below.
To edit the point names, select Column A by clicking on the column header. The entire column will be
selected as shown below. Take the following steps to edit the point names:

Select Edit > Replace to access the Find and Replace dialog shown below.

Set the Find what: value to S

Set the Replace with: value to SV as shown below.
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
Ohio Department of Transportation, GEOPAK V8i Survey Training
Select Replace All
The text in the selected column is edited as shown below.
Note: Editing the survey data can be accomplished using an ASCII text editor, such as Notepad.
Microsoft Excel was used for this example because of its ability to select and edit individual columns.
Simply replacing the character “S” with the characters “SV” in a text editor would result in every “S” in
the file being replaced with the characters “SV” which will yield undesirable results.
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16.2 Adding Attribute Data to the Survey Data
The data collectors used by ODOT’s Surveyors allow the use of attributes to further describe a survey
point by using predefined criteria. For example, the field code for a tree, T, is defined with two
attributes; SIZE and TYPE. The attribute information can be added to the ASCII coordinates by appending
a “comment” to the field code as shown in the example below.
When the ASCII file is processed the Survey Point is plotted in the DGN file with the attribute
information as shown below.
Tip: Use a dash as a delimiter to designate that the information after the field code is a comment. This
will allow multiple attributes to be separated by a space as shown in the example above.
Note: When adding attribute information as a comment you do not need to include the name of the
attribute. Only include the value for each attribute that is associated with a specific field code.
Each attribute is separated by spaces as shown in the example above; therefore an attribute value can
not contain a space. Separate words that are to be considered as one attribute should use the
underscore character instead of a space. For example, the field code POST has been defined with the
following attributes: USE, SIZE, MAT. Defining the attributes as follows will yield undesirable results:
SV2150,286482.1658,2329564.3594,932.7512,POST-Traffic Divider 8 Wood
In the example above, GEOPAK Survey will treat this as four separate attributes. Since the field code has
been defined with three attributes, the value “Wood” will be ignored. Use an underscore as shown
below:
SV2150,286482.1658,2329564.3594,932.7512,POST-Traffic_Divider 8 Wood
See the ODOT Code List for a list of the attributes that are associated with specific field codes. The ODOT
Standard field code list is available in Adobe .pdf format on the ODOT Website at the following URL:
http://www.dot.state.oh.us/Divisions/Engineering/CADDMapping/CADD/Pages/GEOPAKDownloads.aspx
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16.3 Adding Linking Codes to the Survey Data
The GEOPAK Linking codes (see Section 2.3) can be inserted in the survey data as necessary. In the
example below, the codes BL* and EL* have been inserted to start and end lines as needed.
SV1407,287555.8834,2328496.081,935.902,BL*GRLT
SV1408,287486.8739,2328573.978,937.1758,GRLT
SV1409,287480.5692,2328536.204,937.0255,GRLT
SV1410,287549.5439,2328458.515,935.3531,GRLT
SV1411,287564.3914,2328442.085,934.8206,GRLT
SV1412,287633.9363,2328365.078,933.8277,EL*GRLT
SV1413,287570.7512,2328479.849,935.355,BL*GRRT
SV1414,287639.8609,2328402.269,933.5458,EL*GRRT
Alternately, field personnel may elect to collect multiple linear features by appending a unique number
to the field code name for each point that makes up a continuous linear feature. Consider the example
below:
SV1470,287550.6992,2328358.405,931.2099,FEN1
SV1471,287546.1387,2328315.331,929.9823,FEN1
SV1472,287544.6382,2328296.064,929.3929,FEN1
SV1473,287772.5574,2328276.977,933.3783,WVALVE
SV1474,287528.2027,2328201.244,932.0018,FEN1
SV1475,287559.959,2328375.688,930.7708,FEN2
SV1476,287558.7175,2328361.209,930.8428,FEN2
SV1477,287600.9103,2328331.061,930.4734,FEN2
SV1478,287601.1336,2328362.589,930.2602,FEN2
In the coding example above, the field code FEN has been appended with a number to designate two
separate fence lines.
When the ASCII file is processed, GEOPAK Survey must be configured properly for the method used to
specify the Survey Chains.
The processing example contained on the following pages will detail the proper settings for processing
ASCII files using the GEOPAK Linking Codes. See the GEOPAK Survey documentation for more
information processing ASCII files using numbers appended to the feature code name.
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16.4 Processing the ASCII File
When you initially set up the project preferences (see Section 6), set the Data Source as shown below to
process ASCII files.
When the new dataset is created (see section 9), you have the option to set the Data Source as shown
below.
Select the Files to Use and then select OK to access the XYZ to Coordinates dialog shown on the
following page.
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Take the following steps to process the data:

Set the Delimiter option to a comma as shown above.

Set the Comment Delimiter to Dash as shown above.

Select a line of the ASCII file. The value from each comma delimited field of the ASCII file is read
into the dialog above the option buttons labeled None.
The option buttons are used to assign the value for each column of the .csv file. This allows GEOPAK to
support ASCII files in a wide variety of formats. The following options are supported:
The ASCII file used in this example is in the following format:
PNum, Y, X, Z, LCodePCode
Set the option buttons to the correct value for each field as shown in the example below:
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Select Process to initiate the procedure. The Survey Points and Survey Chains are stored in the .gpk file
and the data is mapped in MicroStation.
See the GEOPAK online help for more information regarding processing ASCII files.
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