download the User Manual - ArtemisLite

download the User Manual - ArtemisLite
ARTEMIS
Archery App for Android
ARTEMIS
User Manual
Revision 7 January 2015
Artemis User Manual
1 Introduction
If you cannot wait and want to test-drive the app as soon as possible, skip to the QUICK
START
Artemis is an Archery Scoring and Analysis App for your Androidв„ў phone or tablet. It is
the number one App for the serious Archer and Trainer/Coach that will improve your
archery or that of your athlete to the best of your or his/her abilities. Artemis'
advanced shot analysis will be a vital addition to your game.
Record your score in a fast and intuitive way.
With Artemis, you don't need to waste time plotting shots. A few simple moves and
clicks with a single finger or thumb is enough to record all information.
Many different modes, target faces, distances and rounds.
It supports training or competition mode. Create custom trainings sessions with any
number of ends and any number of arrows per end. Distances in both metric and
imperial units and scoring, and many different target faces are supported. All FITA and
World-Archery target and field faces, as well as IFAA and NFAA target faces are
supported.
Artemis has been used during World Cups and the World Championships in 2013 and
2014 by coaches and archers of Team Netherlands.
Recording the score and arrow position on the target face is important, but also the
order in which each arrow was shot and the identification of each arrow on the target
is supported as well.
Add extra information about each shot.
It is possible to rate each shot. Was the shot badly executed or just perfect? The rating
can be used in later analysis and will be used in the real-time advisory functions. For
example, bad rated shots will be exempted from the sight advisor, so advice will not be
based on a badly executed shot.
Real-Time advice on when and how to adjust the sight.
Get real-time advice when to adjust the sight and exactly how much. An advanced
system is monitoring the trend of the shots and will provide an alert when and exactly
how much the sight needs to be changed to get the group dead-center and stay there.
This advice is based on the measured skill level of the archer as well.
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Artemis User Manual
Using Artemis will gain you extra points.
Another advanced system is monitoring the individual arrows' performance. If an
arrow is getting inconsistent results, for example; the nock may have been hit, and the
archer didn't notice the damage, an alert is shown to check that particular arrow for
inconsistencies or damage.
Analysis
Best part of the Artemis app is its ability to analyze the many different aspects of the
sport. Sure, the archer or trainer/coach wants to keep track of the performance in
terms of score on the different distances and rounds, but will that knowledge actually
create a better archer? How about plotting the different group sizes and positions of
every first arrow in each end that was shot and compare that with every last arrow of
each end? See a trend? Is there a specific arrow with inconsistent grouping compared
with the rest of the arrow-set? Is there optimum shot sequence timing? These are
questions which Artemis is able to answer.
Archery has become a game of statistics!
In fact, archery always has been a game of statistics. Archers and their
trainers/coaches have always fumbled around with pen and paper (or even worse; gut
feeling) trying to record a session and get the best tuning or setup based on those
scribbles.
Compare different bows, arrows and setups
Artemis supports different bows, sights, setups and arrow-sets and lets them be
compared to each other. Coaches can create a database for each of their athletes and
share these databases with them.
Time your shot sequence
With Artemis, a coach/trainer can time the shot sequence of their athletes. This
information will be stored with the shot details and can later be used to analyze and
perhaps find a relationship between shots that took too long and their scoring value.
Does your archer slow down during competition compared to his/her training?
Share your results
Share the database with coach/trainer, or share screenshots of a personal record on
Facebook or email scorecards, all with only a few clicks.
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Artemis User Manual
1.1 Archery; a game of statistics!
“Golf!”
“What?”
“Yes, golf! Let’s have a look at golf!”
Golf is probably one of the most similar sports for us archers to compare ourselves
with; not rifle or pistol shooting but golf! The dynamics of the sport; the fact that the
all-deciding moment of where the golf ball (=arrow) will fly has such a small timewindow (of less than 15ms) that a human being cannot consciously react or control it.
We therefore need to control the preparation part of the swing (=shot setup) and the
after-swing (=follow-through). The mental game of the sport is similar, a single swing
(=shot) can and will decide the outcome of the most important tournaments. The
physical preparation and training methodologies are similar. The fact that we have to
taking environmental conditions into account is similar. The importance of fitting clubs
(=tuning archery equipment). The duration of tournaments with its short but intense
mental peaks is similar. The use of high-tech tools like video support in training, highspeed cameras in tuning, balance boards, etc. In fact, everything in archery can be
compared to golf. Well almost everything. The money to be made in golf is somewhat
different пЃЉ
And that is exactly why we should look at
golf more. Because golf has much more at
stake (financially) than archery, it is also
more researched and thus better
understood what makes the better golfer.
One thing golfers are very much into is;
statistics!
The Professional Golfers Association
website maintains golf statistics for several
decades for all professional golfers. A
staggering 480 different metrics are
recorded for each golfer. Their accuracy (in
%) in 1ft puts, 2ft puts, 3ft put, driving
accuracy and average length, how many
drives go right and how many left? How
good is the golfer around the green, on the
fairway, from the rough? Everything is recorded for one single purpose; what part of
the game do I benefit most to improve?
F IGURE 1PGA S TATISTICS W EBSITE
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Artemis User Manual
And what do we do in archery?
We “look” at our athletes.
We “have a feeling” that a 100gr arrow point
performs better in windy conditions.
We “think” that this stabilizer setup works better (or
it “feels” better).
We even write down our score and compare it with
last week’s score. And since it is more, our training
“worked”.
F IGURE 2 S TATE - OF -A RT P LOTTING
OF
A RROWS
Sometimes we even plot our score on a piece of
paper or take a picture of the target face and “look at
the shape” of the group; and then someone tells us we should improve our string
alignment or use a different spine arrow all by looking at the shape of a group of 30
arrows or less.
This will not effectively improve your game!
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Artemis User Manual
1.2 About the author
Artemis is actively developed by Marcel van Apeldoorn, a former
international archer and currently one of the coaches of the Archery
team of the Netherlands. In his professional life he has a Master of
Science degree in Aerospace Engineering, and holds a position as Senior
Research and Development Engineer in the domain of Air-Traffic-Control systems at
the NLR in Amsterdam, the Netherlands.
To contact, use [email protected]
"The idea for an archery scoring app dates as far back as 1997, when the first Palm
Pilot III was introduced. Being a student, international archer and computer geek I
had the time and know-how to create an App for the Palm operating system, to run
on my Palm Pilot III and later in 2003 my Palm Tungsten T2. In-between I bought a
Compaq iPAQ 3630, also a PDA, but with the Windows CE operating system. I tried to
convert the App to Windows CE, but this obviously failed due to the fact that
Microsoft is unable to create an Operating System of any kind.
When Android was introduced, I got hold of a HTC Magic or Google phone and
started developing software for it. One of my first Apps that actually reached the
Google Market (as it was called back then) in January 2011 is Arrows, which you can
still download. Also in 2011, I started the development of Artemis and the first
upload in Google Play dates October 2011!
Currently, Artemis has been installed more than 10.000 times and is used by toparchers and top-teams in countries all over the world."
Marcel van Apeldoorn
Januari 7th, 2015
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Artemis User Manual
2 Installation
Artemis is an Androidв„ў application that runs on mobile devices running the Android
OS of version 4.0.3 (Ice Cream Sandwich) and higher. It can only be installed directly
from Google Playв„ў.
Use your Android mobile device and scan the QR
tag or click on the Google Play logo on the left. If it
does not appear in Google Play for your device
then you are running an Android version lower
than 4.0.3 (Ice Cream Sandwich). Artemis does not
require any special capabilities of your mobile
device's hardware except for the de-facto
minimum device capabilities of having a touch
screen. It currently supports more than 4500
different mobile devices. During installation, the
app requests different permissions, e.g. access to F IGURE 3 S CAN TO INSTALL A RTEMIS
Storage (for creating database backups) and
Network communication (for linking up with Dropbox and Sharing results via different
media, e.g. Facebook, Gmail, etc.).
Permission
VIBRATE
INTERNET + NETWORK_STATE
WRITE_EXTERNAL_STORAGE
BILLING
GALLERY_PROVIDER
WAKE_LOCK
Reason
For touch-feedback purposes when entering an arrow, or
operating the stopwatch.
For Dropbox integration (to backup and restore the database
to Dropbox account) and for sending unanimous data for
improvements and for crash reports.
If not using Dropbox for backup and restore of the database.
The database can be backed up and restored from external
storage.
For starting the purchase flow when enabling the Premium
features.
Experimental feature where you can select your own app
background from the gallery.
Need to keep the app awake during countdown of the
archery timer.
To remotely control the archery timer
BLUETOOTH +
BLUETOOTH_ADMIN
READ_GSERVICES
+ For the map view
ACCESS_COARSE_LOCATION
ACCESS_FINE_LOCATION
For the map view and the GPS location stored in shots
T ABLE 1 R EQUESTED PERMISSIONS DURING INSTALLATION
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Artemis User Manual
When you start the App for the first time some dialogs will open with first-time
information, upgrade information and change-log. Tick the "Don't show me next time"
box to get rid of them (but do read them first!)
Once completely started you get presented with the main screen with two four tabs
п‚·
п‚·
п‚·
п‚·
Archer; to keep track of changes in your technical form, habits, nutrition,
clothing and footwear. Anything that might influence your performance as an
archer.
Setup; to setup all details of your equipment. At first start, a set of generic data
is installed. There is a recurve and compound setup and a small diameter
Arrowset with 12 arrows and a large diameter Arrowset with 12 arrows that
you can use to get started very quickly.
Record; to record your own shooting, or for a coach/trainer to record the
performance of the athlete.
Analyze; to analyze the shooting performance
If you can’t wait to try it out, see the Quick Start in section 6.
You can upgrade to the Premium version using the Help (?) menu on the main screen,
then select �Upgrade to Premium’. You will get a lot of extra features by upgrading as
you can read in �Premium vs Free’.
For those of you with iOS, there is no iOS version nor will there ever be!
Sorry for that… (Actually, I’m not sorry at all…)
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Artemis User Manual
2.1 Hardware required
Artemis is an Androidв„ў application that runs on mobile devices running the Android
OS of version 4.0.3 (Ice Cream Sandwich) and higher. It can only be installed directly
from Google Playв„ў.
Android supports many different kinds of hardware, from small mobile phone devices
to bigger tablets. The screenshots in this manual are taken from different devices. This
means that some buttons may not be in the same location on your specific device. In
general, bigger screens (10”or 7”tablets) with more pixels (as shown on the right) will
move the menu items up into the main menu bar on the top of the screen, while the
smaller devices with less room in the top menu bar, will open a second menu on the
bottom of the screen (as shown on the left).
If not all menu items fit on the menu-bar, they are collected into the overflow menu.
A design choice: most screens in Artemis do not support landscape!
Typical small screen layout for 3...5
inch mobile devices, where the menu
bar and context buttons are moved
to the bottom of the screen, and
only show as icons.
Typical large screen layout for 7...10 inch tablet
devices, where the menu bar is at the top and
context buttons show as icons with text.
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Artemis User Manual
2.2 Free and in-app purchaes
Artemis comes in several flavors, a free version called ArtemisLite,
a Premium version called ArtemisPremium, a coached version called
ArtemisCoached and a Pro-Staff version called ArtemisProStaff. All
users will download the App and start out as ArtemisLite. You can use
the Upgrade-to-Premium menu item in the main Help menu to upgrade your version
to Premium. Upgrading to Premium is €4.81 (or $5.72 or equivalent in other
countries). Upgrading from Premium to Coached is costs €8.15 (or $9.69 or equivalent
in other countries).
€4.81 is about the same as a couple of nocks, a stick of hot melt and only a fraction
of one single new arrow, but you will get a lot of extra functions that will make you
an even better archer.
Although the free version is quite capable of helping the archer and/or coach in their
training and competition, it is the Premium version that will unleash all of your archery
potential. For coaching and monitor athletes (via the could) the coaching upgrade is
essential. A comparison of Free, Premium and Coaching features is given in Table 2 on
the next page.
The ProStaff version has no extra functionality and is not for sale. It will be distributed
by the developer.
Free
Premium
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Coached
Artemis User Manual
Main Features
Free Version
Manage multiple bows, sights and setups
в€љ
per archer
Manage multiple Arrowset or Quivers
в€љ
Plot your arrows
в€љ
Add a score (without plotting)
в€љ
Add a volume (shooting arrows without
в€љ
scoring)
Add rating and timing to each of your shots
в€љ
Analyze your group and trend
в€љ
Analyze individual arrow grouping
в€љ
Manage multiple bows, sights, arrow-sets
в€љ
and bowsetup
Create rounds
в€љ
Create existing matches for training and
в€љ
competition
Keep track of important form-changes
в€љ
Supports World Archery target and field
rounds, Dutch rounds, GNAS rounds,
в€љ
Australian rounds and Danish rounds
Supports Crossbow (IAU) rounds
в€љ
World Archery, FITA, Field, IFAA and NFAA
target faces on metric and imperial
в€љ
distances
Real-time sight advise
Real-time arrow advise
Sjef's Arrow Selector
Sight setting estimation
In-depth and customizable Analysis of
almost anything, including Group-view,
Multi-View, Filters, Graphs on performance,
Scatter graphs, etc.
Backup and/or restore your personal
database on SD Card, Google Drive or
Dropbox (Dropbox loading only)
Manage multiple Archers
Create and answer self-assessment
questions
Synchronize database with coach in the
cloud
Includes AdMob advertisements
в€љ
Includes a nag screen if more than 2000
в€љ
shots have been recorded
T ABLE 2 D IFFERENCE BETWEEN L ITE AND P REMIUM VERSIONS
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Premium
Upgrade
Coached
Upgrade
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
в€љ
Artemis User Manual
3 Overview
When you start Artemis for the first time, you will see the main screen. This screen
consists of four tabs, indicating the four steps you need to get the most out of the app.
Each tab displays one or more tiles. The menu bar is shown (in this example) on the
bottom of the screen.
Archer
Menu item
Setup
Record
Analyze
Purpose/Description
Options
You have a mailing from the developer of Artemis
Help; About, Contents, What’s New?, Contact, Upgrade to Premium and
Database info
T ABLE 3 M AIN SCREEN MENU
The main help consists of:
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
About; this app and its developer.
Artemis Webpage; browse at Artemis’ homepage.
Download manual; download this manual.
What’s New? New introduced in this version and all
previous versions.
Contact; about the developer and how to contact.
Set background; Select this to customize the
background of Artemis.
Upgrade to Premium; will start the in-App Google
Play purchase process to upgrade to Premium.
Database Info; displays a dialog with some F IGURE 4 M AIN MENU
information about the database and its contents.
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Artemis User Manual
The tabs are used for (from left to right);
п‚·
п‚·
п‚·
п‚·
Archer; Information about you; the Archer, and the things you do to become
better at this sport. Skip this tab for now…
Setup; start with this step. Define the bow that you use for your archery.
Whether it is Recurve or Compound. Input as much information you want
about your Bow, Sight, Bow-Setup and Arrows you use.
Record; the next step is to gather as much information about your shooting as
possible. Shoot a lot of arrows; in competition or training, and record all the
shots you shoot. The record tab also contains sight-settings and a nice archery
shooting timer.
Analyze; final step, analyze what you did. Are you becoming a better archer?
Show graphs of the development of your 18m score, compare different tunings
and find out which is best, or select your most accurate set or arrows for that
important shoot-off.
If a tile is unavailable is it indicated with a big red cross. This means there is currently
not enough information in the database to use the functionality of that
specific tile. This usually happens when the database is still empty. E.g. if you
didn’t specify if there are no recorded matches, you cannot analyze anything.
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Artemis User Manual
3.1 Archer
The first tab is called Archer. It contains information about you;
the Archer, and more specifically information about stuff you
as a person do, to become better at this sport.
This tab can provide valuable information, which is why it is the
first tab in the App, but you can only start using it, if you
understand the rest of the App. So for now, skip this section and
come back if you have a better understanding of the App.
Still here? Ok. With Artemis you can compare your archery
performance before and after you make a change. This change
F IGURE 5 T AB : A RCHER
can be anything in your habits or style, which is worth writing
down so you can later compare your archery performance in a before/after
comparison. It can be a technical change in your shooting form, a habitual change,
different clothing or footwear, different preparation or nutrition, etc. A change
becomes effective at some date. And later on, you can use a filter to select shots
before and after your change and review if it gives you a performance benefit. These
changes are called Form Changes (but actually can be about anything).
By clicking on the Form Change button, you get a list of changes (ordered by date) that
you have entered in the past. The menu for this list simply consists of
Menu item
Purpose/Description
Add a new Change
Copy the selected Bow
T ABLE 4 F ORM C HANGES MENU
Clicking on an existing Form Change will select and edit the change, a long-click will
bring up a context menu where you can add, edit and remove a Form Change.
Menu item
Purpose/Description
Add a new Change
Edit the selected Change
Remove the selected Change
T ABLE 5 F ORM C HANGES LONG - CLICK ( CONTEXT ) MENU
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Artemis User Manual
When you create a new Change, the edit Form
Change screen is displayed. See the example on the
left, where a change of finger hooking (especially the
third finger was gripped a bit deeper) is introduced.
Make sure you give the change a short descriptive
name, so you can find it in the
list of changes when analyzing
your form.
Analyzing? Yes! Suppose you
have been using Artemis for a
while and made a change a
few weeks ago. Now you want
to find out if this change
improved your performance.
Artemis lets you create two
filters; one filter selecting all
shots on all distances correctly scaled to a single
F IGURE 6 N EW F ORM - CHANGE
target before the change and one filter selecting all
those shots after the change. The filters can be depicted on two target faces that can
be compared.
It looks like a simple feature, but it actually is very useful. There are a lot of things that
will help you become a better archer or get a higher score. It can be anything from;
nutrition, clothing, footwear, mental state and preparation. All these things have
nothing to do with the setup of your bow, they’re all about you; the archer! What did
you change about yourself, and did it work???
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Artemis User Manual
3.2 Setup
The second tab; Setup, has four tiles. You need to give some
details about the Sight you use and give some basic
information about the Bow before you can define a BowSetup. In order to shoot a Match you need to enter some
information about the Quiver or Arrowset and each individual
Arrow in it.
Let’s run through the typical setup steps, and start with a Bow.
F IGURE 7 T AB : S ETUP
3.2.1 Bow
Selecting Bow will bring up a list of your currently defined bows. These can
be Recurve, Compound or Crossbow and are displayed accordingly. You
create a Bow to store the fixed information about your equipment; i.e. the
type of handle and type of limbs. The variable information about a Bow; i.e. its braceheight, nocking-point, etc. is stored in the Bow-Setup.
Throughout the App, if you see a list you can interact with it in two ways;
1 Click on an item
2 Long-press on an item
In this case, both actions result in the same context menu to appear.
Menu item
Purpose/Description
Edit the selected Bow
Delete the selected Bow
Copy the selected Bow
Add a new Bow
T ABLE 6 (C ONTEXT ) MENU OF B OW - LIST
Be very cautious with deleting items! If you, for example, delete a sight, the
bow-setup that uses this sight will also be deleted. But that’s not all. All matches,
in fact, all recorded shots, made with that bow-setup will also be deleted.
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Artemis User Manual
3.2.1.1 Create a new Bow
Start with creating a Bow. Clicking on Bow will bring up the Bow list screen. And, for
the first time, this list is empty. Typically with lists in Artemis, you can use the small '+'
button in the action-bar to create a new entry, in this case a new Bow. Provide the
following information about your Bow. The information that
is required is displayed in bold red.
Name; is the identification string (name) of this bow. Choose
one, so that you can quickly select it. For archers with more
than one bow, (e.g. spare equipment) choose a unique
name, for example Green Ion-X and Red Ion-X, if you have
two.
Type; lets you choose between Recurve and Compound. You
need to select Compound if you want Compound scoring
rules on the different target faces.
Handle; free text
Limbs; free text
F IGURE 8 N EW B OW
Cams; (Only for Compound), type of cams
Notes; anything else that is relevant.
3.2.2 Sight
Next we need a Sight to put on the Bow. The Sight plays an important role in the App.
Based on the information provided in the Sight, the App is able to calculate very
accurate sight adjustments or Sight Advices during your competition. After each
recorded shot Artemis will perform a complex calculation of
the moving trend of your last few shots and compare that
with your ability as an archer. When it is computed that you
will benefit from a sight adjustment, you will get notified to
do so, including the actual adjustment you need to make (in
turns and clicks in both directions). So, it is important to get
this right! Selecting Sight brings up a list of your currently
defined sights.
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Artemis User Manual
Menu item
Purpose/Description
Edit the selected Sight
Delete the selected Sight
Copy the selected Sight
Add a new Sight
T ABLE 7 (C ONTEXT ) MENU FOR S IGHT LIST
3.2.2.1 Create a new Sight
Besides an identification or name, the sight details are divided in up/down
and left/right parameters. These parameters are required to compute the
sight advice. The two rates (elevation or vertical movement, and windage or
horizontal movement) define the movement of the sight-pin in mm per full
revolution of the sight adjustment knob.
Provide the following information for the sight;
Name; any identification string will do, just make it a
unique name so it can be easily identified. For example
�Black Shibuya Ultima’.
Up/Down rate; the vertical rate or elevation, is a measure
of how much the sight pin moves up or down when
turning the adjustment knob one full turn or revolution.
This can be determined this using the procedure
described below.
Up/Down clicks; most sights have some click adjustment.
Count the number of clicks for a full turn or revolution and F IGURE 9N EW S IGHT
enter this number. Enter 0 if the sight has no click
adjustments.
Left/Right rate; the horizontal rate or windage, is a measure of how much the sight pin
moves left and right when turning the adjustment knob one full turn or revolution.
This can be determined this using the procedure described below.
Left/Right clicks; most sights have some click adjustment. Count the number of clicks
for a full turn or revolution and enter this number. Enter 0 if the sight has no click
adjustments.
Sometimes a manufacturer of sights provides all specifications on its website. A good
example is Shibuya, see Figure 10 for a detail of their website.
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Artemis User Manual
F IGURE 10 S HIBUYA WEBSITE SPECIFIES THE ELEVATION AND WINDAGE RATES IN INCH / REVOLUTION
If the sight’s manufacturer is like Shibuya it is very easy to find and enter the correct
elevation and windage rate. However, if the elevation and windage for a sight is
unknown, it can be measured with the following procedure:
A simple strategy for measuring these two rate's is;
1. Set your sight (e.g. elevation) to some arbitrary
position (somewhere in the middle), and mark it.
2. Turn the elevation knob 20 full turns.
3. Mark the new position.
4. Measure the distance between the two marked positions
(in the units of your choice)
5. Divide by 20
The resulting number is the rate you need to enter. Do
the same for the windage rate.
Do not simply copy the windage rate. Most sights have different values for
up/down and left/right.
If you don't have enough room for turning 20 full turns, use 10 and divide by 10.
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Artemis User Manual
You don’t need to provide the number of clicks per full turn. If you don’t fill in this
�number of clicks per turn’, the Sight Advice will have the form:
Move your sight 1.3 turns left and 0.5 turns down.
However, if you do fill in the �number of clicks per turn’, the previous sight advice will
read (assuming your sight has 20 clicks per full turn)
Move your sight 1 full turn and 6 clicks left and 10 clicks down.
3.2.3 Bow-Setup
The Bow-Setup can be used to enter
variables most recurve and compound
archers use to tune the bow. If you change
your tune, it is best to create a new Bow-Setup that
you use for your new matches. This way you can
analyze differences in tuning and grouping.
3.2.3.1 Create a new Bow-Setup
Provide the following information for your BowSetup. Some of it is important, since it is used in the
app to calculate various things; most information is
not used by the app, but for your own reference.
F IGURE 11N EW B OW -S ETUP
Tip: If you want to use Artemis for more than one archer you could name the Bow-Setup
after the archer (as in the example on the right). However, it is always better for each
Archer to have its own App and thus its own database!!
Important Tip: Some archers need to pull in their sight when shooting longer distances.
This means that the Eye-Pin distance is different. These archers MUST create two (or
perhaps more) different Bow-Setups. For example, if you pull in your sight for 90m, you
might name your bow-setups "Outdoor 90m" and "Outdoor up-to 70m" to easily
distinguish between the two setups.
Required parameters for a Bow-Setup
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Artemis User Manual
Name; any name will do, but it is easier if you make it unique and descriptive.
Sight; select your sight (as defined in Sight).
Bow; select your bow (as defined in Bow)
Depending on the type of bow (Recurve or Compound) you get different parameters
to set.
3.2.3.1.1 For Recurve
Bow-Setup parameters for a Recurve setup.
Eye-pin distance; is a very important parameter to
get right. It defines the distance between the eye
of the (recurve) archer and the sight pin and is
used to calculate Sight Advices.
One way to measure the eye-pin distance is this. You need a spare string and a
friend/fellow archer. Put one of the end-loops of the string around your sight pin. Now
draw your bow and at full draw, ask your friend to use the string attached to your sightpin to measure the distance to your eye. Now let down, and measure the length of the
part of the string you needed.
Drawweight; your holding weight or weight at full
draw
Braceheight; the braceheight of the bow
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Nocking point; the distance the nock (underside of
the nock) lies above square
Tiller; the difference between top-tiller and
bottom-tiller
Drawlength; your full drawlength
AMO Draw Length Standard; is the distance at the archer's full draw from the nockingpoint on the string to the pivot point of the bow grip (or the theoretical vertical
projection of a tangency line to the pivot point parallel to the [undrawn] string) plus 1
3/4 inch.
To make life easier; most modern recurve handles have their nearest button hole right above
the vertical line through the bow grip pivot point. So if someone marks your arrow where it
touches the button, when you are at full draw, you add 1 3/4 inch and your have your drawlength.
String; any text string will do, use it e.g. to describe the string material, number of strands, etc.
Button spring; Any of Soft, Medium, Firm, Hard or NONE.
Button centershot; the distance the tip of the button protrudes from the inside of the bow
window
Button setting; the stiffness setting of the button
Notes on stabilizer setup; notes on setup of stabilization, type/make/number of weights,
dampers, etc.
General Notes; anything else you want to record
3.2.3.1.2 For Compound
Bow-Setup parameters for a compound setup.
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Peep-Scope distance; is a very important parameter to get right. It defines the distance
between the peep-sight and scope and is used to calculate Sight Advices.
One way to measure the peep-scope distance is to draw the bow yourself and ask a
friend to measure it.
Drawweight; the peak weight of your bow.
LetOffweight; the holding weight of your bow.
Braceheight; the braceheight of the bow.
Nocking point; the distance the nock (underside of the nock) lies above your arrow rest.
Tiller; the difference between top-tiller and bottom-tiller.
Drawlength; your full drawlength.
String; any text string will do, use it e.g. to describe the string material, number of strands, etc.
Top Cam Timing; The timing of your top-cam (e.g. early/late by 1/8th inch).
Rest Horizontal Position; the horizontal position of your arrow-rest.
Rest Vertical Position; the vertical position of your arrow-rest.
Rest Stiffness; the arrow-rest (blade) stiffness.
Rest Type; the type of rest.
Scope Magnification; the magnification of your scope.
Peep-Nock Distance; the distance of your peep-sight to your nocking point.
Notes on Stabilizer setup; notes on setup of stabilization, type/make/number of weights,
dampers, etc.
General Notes; anything else you want to record.
3.2.4 Quiver/Arrow-set
The Quiver or Arrowset tile brings up a list of Quivers/Arrow-sets. A Quiver or
Arrowset defines the overall parameters of the individual arrows which it
contains. If you create a Quiver, you actually create an empty quiver, which
you need to fill with a couple of Arrows before you can use this set.
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Each entry in the Arrow-set list displays (from left to right)
an icon with the creation date below it, the name of the set
with a line of information below it; number of arrows in the
set, type, spine point-weight and number of shots recorded
with this set.
You can have several different Quivers, for example one
with your indoor big diameter arrows and one with your
outdoor smaller diameter arrows.
Only one Quiver can be your default set. This is indicated
with a green star on the right of each list entry. You can
select a default by selecting an Arrow-set and clicking on the
default �pin’ icon, or by simply clicking on the light gray star
in the Arrow-set of your choice.
By selecting a single Quiver, a context menu is shown, which
consists of the following icons. Depending on the hardware,
some menus might be collected in the overflow menu.
Menu item
F IGURE 12 Q UIVER
A RROWSET LIST
OR
Purpose/Description
Edit the selected Quiver/Arrowset
Show the list of individual arrows in the selected Quiver/Arrow-set
Make the selected Quiver/Arrow-set the default to use in sight-settings
and new rounds/matches
Remove the selected Quiver/Arrow-set
Copy the selected Quiver/Arrow-set (including the set of arrows). Use this
to quickly generate a new set of arrows.
Create a new Quiver/Arrow-set
T ABLE 8 C ONTEXT MENU OF A RROWSET /Q UIVER
Be very cautious with deleting Quivers/Arrow-sets! If you delete one, All Rounds
and Matches, in fact, all recorded Shots, made with arrows from that
Quiver/Arrow-set will also be deleted.
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3.2.4.1 Create a new Arrowset
Provide the following information for your Quiver/Arrow-set. The parameters in bold
red are required; the rest can be left empty because they are not used by the app in
any calculations but only for your reference.
Name: Give your quiver of arrows a unique name
(e.g. my outdoor A/C/E's).
Manufacturer: Manufacturer (e.g. Easton, Carbon
Express, etc.)
Type: Type of shaft (e.g. A/C/E or X10, etc.).
Spine: The spine value (in 1000th of inch). Example,
an A/C/E 620 has a spine value of 0.620.
Shaft-length: The shaft-length.
Point-weight: The point-weight.
Diameter: The diameter of the shaft. This parameter
is used to visualize arrows in the correct scale on the
target face, so is important to get right. E.g. an
F IGURE
Easton A/C/E is around 5.6 mm.
13
N EW
Q UIVER
/
A RROWSET
Add 12 arrows: The checkbox is selected by default.
This indicates that 12 arrows will be created (with numbers/identifications 1...12) and
put in this quiver.
If you uncheck the 'Add 12 arrows' checkbox, you create an empty Quiver. This Quiver
cannot be used in any Match, simply because it does not contain any arrows. Only
uncheck if you know what you're doing.
3.2.4.2 Arrows
If you want to create arrows manually, add more arrows or edit the arrows, go back to
the Quiver-list, select a quiver and press the button which looks like a set of arrows.
You get the Arrow list for that specific Quiver where you can edit each arrow
individually.
In the arrow-list you can add new arrows, edit existing arrows, copy an existing arrow
or remove an arrow. The copy action will make a copy of the selected arrow but give it
a new unique number.
If you edit an arrow, you can give it a number, and it would be very wise to have
unique numbers! Each arrow can be a bare shaft or not and its total weight can be
entered. You can also mark an arrow as being un-usable or destroyed.
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A selected arrow can be removed as well, but use this with caution!
Note, if you have lost or destroyed an arrow, you might be tempted to delete
this arrow from the database; DON'T! Deleting arrows from the database will
also delete all matches that were shot with this arrow. Just mark the arrow as
unusable.
F IGURE 14 A RROW LIST
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3.3 Record
The record tab is used to gather as much information about
your shooting as possible. Shoot a lot of arrows; in
competition or training, and record all the shots you shoot.
The record tab also contains sight-settings and a nice archery
shooting timer.
F IGURE 15 T AB : R ECORD
3.3.1 Round
A Round is a collection of Matches where the total score of the round is the sum of its
individual matches. For example the World Archery 1440 round for senior men is the
collection of 4 Matches, each 36 arrows shot at 90m and 70m on a 122cm target face
and 36 arrows shot at 50m and 30m on a 80cm (or equivalent) target face. The total
score of the 1440 round is the sum of the individual rounds.
3.3.1.1 RoundList
The Round list displays a list of rounds. Of each round, the total score, number of
arrows shot (out of a maximum of..) and some other info is displayed.
Menu item
Purpose/Description
Add a new Round
Add a new round by scanning a QR tag
Help on the round list
T ABLE 9 M ENU OF ROUNDLIST
By long-pressing a Round entry, a long press menu is displayed with entries described
in Table 10.
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Menu item
Purpose/Description
Edit the selected Round
Share the selected Round
Create a QR tag of the selected Round. This QR tag can be scanned by a
second device to create a copy of the Round
Remove the selected Round
T ABLE 10 L ONG PRESS MENU OF ROUND LIST
3.3.1.2 Create a new Round
Select the round you want to shoot. Artemis is going to create the correct number of
matches (targets at distances) with number of ends and arrows per end. Every match
is then linked to the created round. Artemis supports the following rounds:
Round
World Archery Outdoor rounds
1440 round Men
1440 round Women
1440 round Junior Men
1440 round Junior Women
1440 round Cadet Men
1440 round Cadet Women
1440 round Men PRO
1440 round Women PRO
1440 round Junior Men PRO
1440 round Junior Women PRO
1440 round Cadet Men PRO
1440 round Cadet Women PRO
70m round
50m round
World Archery Indoor rounds
18m round
18m round
Formerly known as FITA Indoor rounds
25m round
Combined 25m/18m round
Formerly known as FITA Outdoor rounds
Metric II
Description
Long distances 6 ends of 6 arrows
distances 12 ends of 3 arrows
Long distances 6 ends of 6 arrows
distances 12 ends of 3 arrows
Long distances 6 ends of 6 arrows
distances 12 ends of 3 arrows
Long distances 6 ends of 6 arrows
distances 12 ends of 3 arrows
Long distances 6 ends of 6 arrows
distances 12 ends of 3 arrows
Long distances 6 ends of 6 arrows
distances 12 ends of 3 arrows
All distances 6 ends of 6 arrows
All distances 6 ends of 6 arrows
All distances 6 ends of 6 arrows
All distances 6 ends of 6 arrows
All distances 6 ends of 6 arrows
All distances 6 ends of 6 arrows
2x 6 ends of 6 arrows at 70m (122cm)
2x 6 ends of 6 arrows at 50m (80cm)
and short
and short
and short
and short
and short
and short
On 40cm 10ring face
On a 40cm vertical three spot
2x 10 ends of 3 arrows at 25m (60cm)
2x 10 ends of 3 arrows at 25m (60cm) and 2x 10
ends of 3 arrows at 18m (40cm)
6 ends of 6 at 60m and 50m with 122cm face and
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Metric III
Metric IV
Metric V
900 round
Special indoor rounds
25m 1p
Vegas
Kings of Archery
GNAS Indoor
Bray I
Bray II
Stafford
Portsmouth
Worcester
GNAS Outdoor
York
Hereford
Bristol I
Bristol II
Bristol III
Bristol IV
10 ends of 3 arrows at 40m and 30m on a 80cm
target face
6 ends of 6 at 50m and 40m with 122cm face and
10 ends of 3 arrows at 30m and 20m on a 80cm
target face
6 ends of 6 at 40m and 30m with 122cm face and
10 ends of 3 arrows at 20m and 10m on a 80cm
target face
6 ends of 6 at 30m and 20m with 122cm face and
10 ends of 3 arrows at 15m and 10m on a 80cm
target face
5 ends of 6 arrows at 60m, 50m and 40m all on
122cm target face
25 ends of 1 arrow (written in sets of 5) at 25m on a
60cm target face
2x 10 ends of 3 arrows at 18m on 40cm target face
with recurve ten counting as 10 points for both
recurve and compound
3x 10 ends of 3 arrows at 18m on 40cm target face
with recurve ten counting as 10 points for
compound and recurve 10 and 9 ring counting for
10 points for recurve
10 ends of 3 arrows at 20 yards on 40cm target
face.
10 ends of 3 arrows at 25 yards on 60cm target
face.
2x 12 ends of 3 arrows at 30 yards on 80cm target
face.
2x 10 ends of 3 arrows at 20 yards on 60cm target
face.
12 ends of 5 arrows at 20 yards on 16inch target
face.
Imperial scoring on 122cm target face. 12 ends of 6
arrows at 100 yards, 8 ends of 6 arrows at 80 yards
and 4 ends of 6 arrows at 60 yards.
Imperial scoring on 122cm target face. 12 ends of 6
arrows at 80 yards, 8 ends of 6 arrows at 60 yards
and 4 ends of 6 arrows at 50 yards.
Imperial scoring on 122cm target face. 12 ends of 6
arrows at 80 yards, 8 ends of 6 arrows at 60 yards
and 4 ends of 6 arrows at 50 yards.
Imperial scoring on 122cm target face. 12 ends of 6
arrows at 60 yards, 8 ends of 6 arrows at 50 yards
and 4 ends of 6 arrows at 40 yards.
Imperial scoring on 122cm target face. 12 ends of 6
arrows at 50 yards, 8 ends of 6 arrows at 40 yards
and 4 ends of 6 arrows at 30 yards.
Imperial scoring on 122cm target face. 12 ends of 6
arrows at 40 yards, 8 ends of 6 arrows at 30 yards
and 4 ends of 6 arrows at 20 yards.
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St. George
Albion
Windsor
Short Windsor
Junior Windsor
New Western
Long Western
Western
Short Western
Junior Western
Short Junior Western
American
St. Nicolas
New National
Long National
National
Short National
Junior National
Short Junior National
New Warwick
Long Warwick
Warwick
Short Warwick
Junior Warwick
Short Junior Warwick
Danish Outdoor rounds
1440 round Kadet
1440 round Mini
1440 round Mikro
70m round Kadet
70m round Mini
Imperial scoring on 122cm target face. 6 ends of 6
arrows at 100 yards, 6 ends of 6 arrows at 80 yards
and 6 ends of 6 arrows at 60 yards.
Imperial scoring on 122cm target face. 6 ends of 6
arrows at 80 yards, 6 ends of 6 arrows at 60 yards
and 6 ends of 6 arrows at 50 yards.
Imperial scoring on 122cm target face. 6 ends of 6
arrows at 60 yards, 6 ends of 6 arrows at 50 yards
and 6 ends of 6 arrows at 40 yards.
Imperial scoring on 122cm target face. 6 ends of 6
arrows at 50 yards, 6 ends of 6 arrows at 40 yards
and 6 ends of 6 arrows at 30 yards.
Imperial scoring on 122cm target face. 6 ends of 6
arrows at 40 yards, 6 ends of 6 arrows at 30 yards
and 6 ends of 6 arrows at 20 yards.
Imperial scoring on 122cm target face. 8 ends of 6
arrows at 100 yards, 8 ends of 6 arrows at 80 yards.
Imperial scoring on 122cm target face. 8 ends of 6
arrows at 80 yards, 8 ends of 6 arrows at 60 yards.
Imperial scoring on 122cm target face. 8 ends of 6
arrows at 60 yards, 8 ends of 6 arrows at 50 yards.
Imperial scoring on 122cm target face. 8 ends of 6
arrows at 50 yards, 8 ends of 6 arrows at 40 yards.
Imperial scoring on 122cm target face. 8 ends of 6
arrows at 40 yards, 8 ends of 6 arrows at 30 yards.
Imperial scoring on 122cm target face. 8 ends of 6
arrows at 30 yards, 8 ends of 6 arrows at 20 yards.
6 ends of 6 arrows at 50m and 40m on 122cm
target face and 12 ends of 3 arrows at 30m and
20m on 80cm target face.
6 ends of 6 arrows at 40m and 30m on 122cm
target face and 12 ends of 3 arrows at 30m and
20m on 80cm target face.
6 ends of 6 arrows at 20m and 15m on 122cm
target face and 12 ends of 3 arrows at 15m and
10m on 80cm target face.
2x 6 ends of 6 arrows at 40m on 122cm target face.
2x 6 ends of 6 arrows at 30m on 122cm target face.
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70m round Mikro
Danish Indoor rounds
12m round Kadet
12m round Mini
8m round Mikro
2x 6 ends of 6 arrows at 15m on 122cm target face.
2x 10 ends of 3 arrows at 12m on 40cm 5-ring
target face
2x 10 ends of 3 arrows at 12m on 40cm 5-ring
target face
2x 10 ends of 3 arrows at 8m on 40cm 5-ring target
face
Australian rounds
Fremantle
Intermediate
Horsham
Long Sydney
Sydney
Long Brisbane
Brisbane
Adelaide
Short Adelaide
Hobart
Perth
Canberra
Short Canberra
Junior Canberra
Grange
Melbourne
Darwin
Geelong
Newcastle
Holt
Drake
Wollongong
Townsville
Launceston
International Crossbow Shooting Union (IAU) Rounds
IAU Outdoor IR1800
2x IAU Outdoor IR900
IAU Outdoor IR900
30 bolts at each of these targets: 60cm face at 65
meters, 60cm face at 50 meters, 40cm reduced
face at 35 meters
IAU Indoor 25m IR600
60 bolts at 40cm reduced face at 25 meters
IAU Indoor 18m IR600
60 bolts at 25cm face at 18 meters
IAU Indoor 18m IR1800
2x IAU Indoor 18m IR600
IAU Indoor 10m IR400
40 bolts at 25 reduced face at 10 meters with
special 10 meter scoring rules
T ABLE 11 S UPPORTED ROUNDS
3.3.2 Match
A Match is a collection of ends, each end having the same number of shots. For
example, 10 ends of 3 arrows shot at 18m on a 40cm target face is called an 18m
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Match. Not to be confused with the WA 18m round, which actually is 60 arrows shot at
18m on a 40cm target face (or 2 individual 18m Matches).
The format of a Match can be;
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
п‚·
Custom format
WA Outdoor
WA Indoor
WA Field
Vegas
FITA Outdoor
FITA Indoor
NL Indoor
GNAS Outdoor
GNAS Indoor
DK Outdoor
DK Indoor
Australian Outdoor
IFAA Indoor
IFAA Field
IFAA Hunter
Beursault
IAU Indoor
IAU Outdoor
In case of a �Custom Format’, a Match can be customized to be anything from 1 arrow
to 12 arrows per end and from 1 ends to 99 ends, all shot at the same (arbitrary)
distance on the same target face (but any target face can be selected).
In case of the �WA Field’ format, the Match can still be customized for number of ends
and number of arrows per end, but the target face and distance are not set (you can
choose them, but they will not be fixed). At the start of each end, you can enter a new
target face and (estimated) distance.
In all other Formats, the target faces to choose from are restricted to the format. For
example in the �WA Indoor’ format, the faces are restricted to those used in World
Archery Indoor competitions.
3.3.2.1 MatchList
The Match-list displays all matches in the database. These matches are color coded;
green form training and grey for competition. Also the scores of the matches are color
coded; black for finished and blue for matches that are still in progress.
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F IGURE 16 M ATCH LIST
The match-list menu has the following options
Menu item
Purpose/Description
Create a new match
Create a match from a QR tag. This will start a QR tag reader (or
requests you to install one) and once started, the QR tag reader may
scan a tag. This tag will be used to create a Match.
Filter the Match-list. If the red ! is displayed, the match-list is actually
filtered (i.e. not all Matches are displayed). Selecting this will start a
dialog so you can filter the Match-list on. For example distance,
training/competition, in progress/finished.
Displays a help file.
T ABLE 12 M ENU FOR M ATCH - LIST
Interaction with the Matches in the list is two-fold; touch and long-touch. On touch,
the App will open the Match-input screen, see section 3.3.3. Depending on whether
the Match is finished or still in progress different options will be available.
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On long-touch the following options will be available
Menu item
Purpose/Description
Edit the selected Match. Even if a Match is finished, you can still edit it.
You can even increase the number of ends and keep on shooting the
same match
Delete the selected Match
Share the selected Match.
Unlink the selected match from its round.
Add the selected match to a round.
Create a QR tag from the selected Match.
Start the �Sjef’s Arrow Selector’ function with input the selected match
T ABLE 13 L ONG PRESS MENU FOR M ATCH - LIST
3.3.2.2 Create a new Match
When creating a new Match, you need to select your Bowsetup and Arrowset that you
are going to use for that Match first. To make things easier, your default setup and
Arrowset will be pre-selected. Next thing you need to set is the type of Match, if you
choose a Custom Format, you can create any Match you like; shoot at any distance,
with up to 12 arrows per end for a maximum of 99 ends. You can select from the
following list of target faces set up at any distance. The scoring also depends on which
target face you choose. For example a World Archery 40cm, 5 rings target face when
shot at with a compound will score different from a Vegas 40cm, 5 rings face
Target Face
Description
World Archery 122cm, 10 rings
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World Archery 80cm, 10 rings
World Archery 80cm, 6 rings
World Archery 80cm, 5 rings
World Archery 60cm, 10 rings
World Archery 60cm, 5 rings
World Archery 40cm, 10 rings
World Archery 40cm, 5 rings with inner ten and recurve ten
World Archery 40cm, 5 rings with inner ten only
World Archery 40cm, 5 rings with recurve ten only
Vegas 40cm, 5 rings, with compound scoring 10 for recurve
ring
World Archery Field 80cm
World Archery Field 60cm
World Archery Field 40cm
World Archery Field 20cm
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GNAS 122cm (Imperial 9,7,5,3,1 scoring zones)
GNAS 16inch (Worcester)
IFAA Field 65cm
IFAA Field 50cm
IFAA Field 35cm
IFAA Field 20cm
IFAA Hunter 65cm
IFAA Hunter 50cm
IFAA Hunter 35cm
IFAA Hunter 20cm
IFAA Indoor 2 rings (5 spot)
IFAA Indoor 5 rings
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Beursault target face
IAU 60cm target face
IAU 40cm reduced target face
IAU 25cm target face
T ABLE 14 S UPPORTED TARGETFACES
3.3.2.3 Share a Match
If you chose to share a Match from the Match-list, you’ll get a dialog “Share with…”.
Depending on the different Apps you have installed on your device, all Apps that can
deal with text and images will appear in the dialog. For example the Gmail app can be
selected to share with. Now Artemis will create a Mail for you with textual contents
your scorecard and will add for each end you shot an image of the target face with the
arrows of that end displayed in the target face.
3.3.2.4 Using the QR tag
Quickly create different matches without entering all information? Easily copy the match
or round that your archer friend has just created? Provide a service to archers that shoot
your local competition? Or create a complete training-plan for your archers?
With Artemis you can scan a QR tag, and the Match or Round will be created for you.
You can also create manually a Match or Round, and provide a QR tag to your archerfriend who will then be able to scan the tag and copy your Match or Round.
F IGURE 17 W ORLD A RCHERY 1440 R OUND FOR M EN
Go to the Match-list or the Round-list screen and click the QR action button (you need
to have BarCode scanner installed or else you will get a notification dialog). Scan the
tag on the left and a WA 1440 round for Men with all distances in 6 ends of 6 arrows
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and the linked 4 matches (90m, 70m, 50m and 30m) that will be held in Purmerend
(Netherlands) will be created in an instance1.
3.3.3 Record a Match
The Input interface is where you as an archer can enter your shots. It is important that
you can enter all information as quickly and as accurately as possible. You don't want
to stand around at the target trying to enter your shots in some weird format or
unresponsive non-intuitive application. Artemis was built for ease of use. A simple and
quick workflow for entering shots was one of the main design criteria of the
application.
The screen you will see the most is the Match input screen. Its layout is shown below.
F IGURE 18 I NPUT SCREEN LAYOUT
The screen is layout in different parts; a title-bar, a tab-bar with 4 tabs, an input
area and an action-bar with action and alert buttons. The input area may feature an
optional single end scorecard which shows you the score of the current end. The main
feature of the input area is a big target-face which allows you to enter your shots.
The title-bar displays the name of the BowSetup that you're using.
1
You need to have a default Bowsetup and Arrowset for this to work.
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If you ever, as a coach, want to spot different archers, it is a good strategy to include in
the bowsetup the name of the athlete. This way it is easy to spot in the titlebar who you
are spotting for.
The tab-bar contains four tabs, which are used for;
п‚·
п‚·
п‚·
п‚·
Input: allows you to enter your shots.
Scorecard: displays a scorecard with the running score.
Group: displays an analysis of your group and the trend.
Arrows: displays an analysis of the individual arrows' performance.
The optional scorecard is an overlay on the target face shows the current end. In the
options menu this overlay can be turned on/off.
3.3.3.1 Input
The main part of the screen is the interface for entering shots. All input is done with a
single finger. No multi-touch is supported. There are two
reasons; not all android platforms support multi-touch and it is
easier to operate your android device (usually your mobile)
with a single finger (thumb) while holding it in a single hand.
Perhaps the most important object on the target face is the
input-pointer. You use this input-pointer to indicate the arrows
position and to place the arrow. The fat part of the inputpointer can be touched and moved with your finger or thumb.
The pointy side is where the arrow will be placed. The arrow is
depicted in a correct
scale with respect to the
target face, so can be
quite small. To the topleft of the arrow, the
scoring
value
is
displayed, so you can
accurately position any
liners. In the Options
menu, the input-pointer
can be switched to the
left, right or straight
down, depending on
your preferences.
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Besides the pointer, the arrows of the current end and the arrows of previous ends are
drawn on the target face as well. The arrows of the previous ends are drawn to scale
(so can be quite small) and the current end arrows are exaggerated a bit for visibility. If
you want, you can turn off the
arrows of the previous ends in
the Options.
The scorecard’s last end is shown
on top of the target face. It shows
the current end number, the
scoring values, the end total and
the running total. The colored
background and all other
information in the scorecard can
be configured.
Each score cell can contain a lot of information. Besides the obvious arrow score in
the center, it contains the shot sequence (or order number), the arrow identification
(which arrow was used for that particular shot/score), your (or your coaches) rating on
how good the shot was, the timing of the shot and if a Sight Advice was accepted.
Let’s go back to the input of arrows. There are different modes of interaction:
Interaction with the target-face
Touch-and-move; will allow you to move the target-face.
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Touch-and-hold; will vibrate the phone and show a
zoom-bar. When the zoom-bar is shown, you can
(without lifting your finger) zoom the target-face
by moving up and down. The zoom center will be
the position where you initially touched the
target-face.
If the match is still in progress, you can also record
a new shot. The input-pointer will be displayed. If
it's not, try zooming out to find it. The inputpointer is shaped as a mouse-pointer with at the
tip of the pointer the arrow you're about to record
on the target. Top-left of the arrow, there is an
indication of the scoring value of the arrow if it
would be placed as-is.
Interaction with the Input-Pointer
Touch-and-move; will allow you to move the inputpointer into the correct position. In the mean time, the input-pointer will indicate the
correct value of the shot (taking line-cutters into account)
Tap; will place the shot at that particular position, with the indicated scoring value.
If you don’t like the tap functionality, you can replace it (in Options) with a button that
you need to click to actually position the arrow.
Interaction with the Arrows and Scorecard-end
The arrows that have been recorded in previous ends are shown in transparent gray
and cannot be interacted with. The arrows that have been recorded in the current end
are depicted in black with a white outline or white with a black outline and can be
selected by tapped on them (or near them). Once selected, a green outline will appear
around the arrow. In the scorecard-end, the corresponding scoring value will be
selected (with a green circle) as well. You can also tap on the scorecard-end to select a
scoring value (which will highlight the corresponding arrow on the target face).
Once an arrow has been selected, an extra button (trashcan) will appear in the action
bar which will allow you to remove that particular shot.
3.3.3.1.1 Shot Details
The Shot details dialog, which will be opened when a shot is placed on the target face,
is used to enter extra information about a shot. How much extra information depends
on what was selected in Options. This may well be the most important part of the app.
The extra information you store here is valuable in analysis. You can add:
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Shot rating; How good the shot felt (or, as a coach, how good a shot looked).
This rating can later be used to filter out bad shots in analysis, or to filter out
bad shots for the sight and arrow advisors
Arrow identification; identifies which arrow was used for that particular shot.
This is important to find out if you have inconsistent arrows (which is what the
arrow advisor function is all about)
Vane rotation; this is primarily used by crossbow shooters who want to tune
which vane was in the track of the crossbow. Compound and Recurve archers
could use this to tune nock rotation.
F IGURE 19 D IFFERENT S HOT D ETAIL DIALOGS
Figure 19 shows the four out of five different kind of shot detail dialogs that may
appear. The fifth option is no shot details at all. The top left shows all information you
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can store. Remember to set (in Options) the default rating and the default vane
rotation to the value you pick most. This saves you some time entering it. If the shot
details window asks for rating or vane rotation, the value is stored with the shot. If
there is no rating or vane rotation requested (like in the bottom right dialog) then no
rating or vane rotation is stored with the shot (eventhough you might have set a
default value)
The arrow selection part will show the arrows that you have in your arrow-set (quiver).
Arrows that have been used in the current end already have been filtered out, so you
can only select an arrow you haven't shot in this end yet. Arrows which are actually
bare shafts will be displayed in circular buttons instead of rectangular ones.
In all cases, once you select an arrow, the dialog is dismissed automatically, so rate
first, and then select the arrow.
3.3.3.1.2 Stopwatch
An important part of shooting form is timing. One form-element that almost all elite
archers have in common is a very consistent timing of their shots. Artemis can be used
by a trainer/coach to get important feedback on timing issues. To use this feature, the
stopwatch functionality has to be enabled.
Enable the stopwatch: In the match-input options menu, enable the stopwatch (Shot
Details -> With stopwatch). This will bring up a button in the lower right corner of the
target input screen (only if there is an input pointer as well).
Record a shot: To record a shot, press the stopwatch button when the archer is lifting
the bow-arm. Now wait for the shot, and at the release, stop the stopwatch. Now use
the pointer to enter the shot (and possibly more info
about the shot; e.g. arrow identification and/or shot
rating). The time indicated by the stopwatch will appear
in the top-left corner of the shot cell.
The time information will be presented in the scorecard
as well and you can perform different kind of Analysis
with it (e.g. find a relation between timing and
accuracy?)
3.3.3.2 Scorecard
The score tab shows a scorecard with the scores and
running total as entered. It displays the end number in
the first column, the individual values of each arrow (in
the next three columns), a 3 arrow subtotal and a F IGURE 20 S CORE CARD
running score in the 6th column.
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The scorecard displays your score until now. It groups each end in lines of three arrows
and sorts them in descending order (according to World-Archery rules), or in shotorder which can be selected in the preferences. The three-arrow totals are displayed
as well as a running total.
The scorecard can display some extra information for each score/shot (this depends on
which options are selected):
The background of the arrow value is color-coded with the color or the target-face ring
(i.e. yellow, red, blue, etc. for target-rounds or yellow and black for field-rounds),
On the bottom-right, a small black circle with a number in it indicates which arrow
(arrow identification) was used for the shot. A small number on the left-hand bottom,
indicates the sequence in which you shot the arrow (the first, or second, etc. shot of
the end). Note that this sequence number will not be displayed if the end is sorted in
shot-sequence, which can be set in options.
1 to 5 blue circles (on the bottom part of the cell) indicates the shot rating.
In the top left hand corner the timing information is displayed (if available). This
information can be in seconds (with tenthn of seconds) or color coded circles). TBD.
The top right may contain a small green symbol representing a sight-pin. This indicates
that after this shot, a Sight Advice was presented to the archer and accepted.
This extra visual information can be turned on/off in the options menu.
At the bottom of the screen, a number called Archers Skill Level is presented. This
indicates the skill level of the archer for this score (actually; for the distribution of all
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the shots on the target). In the action menu, the dream-button will pop-up a dialog
where the skill level is compared with a 70m round, a 50m round and a men and
women 1440 round.
3.3.3.3 Group
The Group view tab shows the grouping of your shots in the current match. This
grouping is based on the total number of shots in the current match and the last n
shots in the current Match.
The group view shows the asymmetrical standard
deviation of all your shots (the painted �blob’).
The group view also shows a trend (crossed circle
with lines sticking out). The �blob’ is based on all the
shots in the match, and the trend is based only on
the last n shots. The number n can be set in the
Options and is displayed in the sight icon. The center
of the circle indicates the average of the trend and
the lines sticking out show the spread (again an
asymmetrical standard deviation) of the last few
shots.
The sight button on the bottom left can be used to
get a sight advice. This advice is computed using the
Bow-Setup (sight extension) and Sight specifics F IGURE 21 G ROUP VIEW
(up/down and left/right information). The advice is
such that it will get the trend back to the center of the target.
The icons on the menu-bar are;
Menu item
Purpose/Description
Only use shots with this rating or higher for all calculations in this view. An
empty star means; “take all shots into account”
Compute a Sight Advice based on the last 4 shots
Pop-up a dialog where you can select to also display all individual shots
Dare-2-Dream. Computes whether a higher score was possible simply by
moving the group on the target face. I.e. it computes the maximum
(theoretical) score of the shots for given group if the sight was set more
accurate. It is an indication of the scoring capabilities of the archer.
Specific Options
Help
T ABLE 15 M ENU OF M ATCH - INPUT G ROUP TAB
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3.3.3.4 Arrows
The Arrows view tab shows the grouping of each individual arrow. Using this display
will let you compare the performance of each arrow. If you have an arrow consistently
hitting outside the group, you may want to inspect it.
During recording, Artemis will automatically warn you if it suspects an arrow.
The icons on the menu-bar are;
Menu item
Purpose/Description
Only use shots with this rating or higher for all calculations in this view. An
empty star means; “take all shots into account”
Displays a dialog where you can select which individual arrow averages and
their individual shots to display
Specific Options
Help
T ABLE 16 M ENU OF M ATCH - INPUT A RROW TAB
3.3.3.5 Sight Advice
One of the advanced features of Artemis, which might save a couple of points
now and then, is the Sight Advisor. During the recording of shots, Artemis keeps
track of some statistical data about the positions of where the arrows land and gives a
warning when a sight adjustment is needed. It not only warns, but also advises on how
much to adjust the sight such that the group will end up dead-center again.
More details on sight adjustment and advice can be found in section 5.1
The math behind the advice is quite complicated, but to summarize;
1. The average point of impact of the last few shots is computed.
2. The average group size in all four directions (up, down, left and right) is
computed.
3. When the average point of impact of the last few shots (the trend)
drifts more from the center than the archer (taking its ability into
account) is able to shoot them, an advice is given.
4. A sight advice will show up as a small sight-pin with a red exclamation mark, as
is shown on the right.
A sight advice is given when needed!
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As an example, let’s have a look at the screenshot on the right. In the input tab, you
would have noticed the sight icon with the exclamation mark telling you that a sight
advice can be given. If you would click on the "Group" tab to show the group, it will
show a green 'blob' indicating the average grouping of all arrows in the match. The
black cross-hair indicates the trend of the last 6 arrows
that were shot. In this case both the trend and the
complete group are slightly off-target at about liner-10
at 2 o'clock.
So go back to "Input" and click on the Sight Advisor to
get the actual advice as is shown in the screenshot on
the right. Now you can either; accept the advice and adjust your sight, or ignore it.
Because the Sight Advisor's logic needs to know if your have reset/adjusted your sight
in order to keep working, be sure to click OK when you
accept the advice or Cancel when you choose to ignore
it.
In the Scorecard and in the current end a small green
icon (which looks like a sightpin) will appear indicating
the shot after which the sight was adjusted. The Sight
Advisor is reset and will continue to monitor only the
shots which have been entered after this sight change.
If you accept the sight advice and click OK, the advisor
will keep on monitoring and providing you with valuable
advices when needed.
For even more advanced
use; sometimes you
have a shot which was
technically bad executed. This shot will probably not
land dead-center but will be taken into account by the
sight advisor tool. This means that you get an advice to
adjust your sight, based on bad shots. This is obviously
not what you want!
If you rate your shots (using the rating dialog), you can
(and should) give the badly executed shots a lower
rating than your good shots. Assume you give your
normal shots a 4 star rating, and your bad shots a 1 or
2 star rating. If you click the rating-filter button (the
small star on the action bar) and set it to e.g. 3-star
filter, the bad shots (shots with 1 and 2 stars) are filtered out (and they are filtered out
of the sight advisor as well!).
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Use shot rating in combination with rating filter to get the most accurate sight advice!
3.3.3.6 Using the shot rating
The shot rating is an easy way to tell the system something about the shot. TBD
3.3.3.7 Arrow Advice
One of the advanced features of Artemis, which might save a couple of points now and
then, is the Arrow Advisor. During the recording of shots, Artemis keeps track of some
statistical data about the positions of where each individual arrow land. To use Arrow
Advice, the arrow for each shot needs to be identified (turn this feature on in the
options menu). Artemis gives a warning when it is needed to check an arrow because it
exhibits inconsistent behavior compared to the other arrows. E.g. when a nock is
damaged or the shaft is slightly bent, the arrow that may have grouped perfectly,
could fall outside of the group.
The math behind it is quite complicated, but to summarize;
1. The trend in average position and group size of each individual arrow is
computed.
2. The trend in average position and group size of all other arrows (except the
arrow under consideration) is computed.
3. Every individual arrow is checked against the group of all other arrows, and
when inconsistencies are found, an alert is raised; the so-called Arrow Advice.
The arrow advice will show up as a small group of arrows with a red
exclamation mark, as is shown on the right.
Always take Arrow Advices seriously, investigate the arrow and if you’re really sure
nothing is wrong, you might put it back in the set. But notice that some damage is hard
to identify. Competition advice: take the arrow out of the set, and investigate during a
training session.
Let's, in the case of the example on the right, have a look why you get this advice. Click
on the "Arrow" tab. This tab will show for each arrow the average grouping in the
match.
For even more advanced use; sometimes you have a shot which was technically bad
executed. This shot will probably not land dead-center but will be taken into account
by the arrow advisor tool. This means that you get an advice to check an arrow, simply
based on a bad shot with that particular arrow. This is obviously not what you want!
If you rate your shots (using the rating dialog), you can (and should) give the badly
executed shots a lower rating than your good shots. Assume you give your normal shot
a 4 star rating, and your bad shot a 1 or 2 star rating. If you click the rating-filter button
(the small star on the action bar) and set it to e.g. 3-star filter, the bad shots (shots
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with 1 and 2 stars) are filtered out (and they are filtered out of the sight advisor as
well!).
Use shot rating in combination with rating filter to get the most accurate arrow advice!
3.3.4 SightSettings
TBD
3.3.4.1 Enter new sight setting
TBD
3.3.4.2 Compute sight settings
TBD
3.3.5 Timer
As most top-coaches know; timing says a lot about the performance of your archer. So
it is important to know if timing changes. Or, what timing does to your performance.
3.3.5.1 Use the timer
To be able to use the timer, you have to turn in on in the options. When it is on, in the
record screen there is an extra button on the bottom right of the screen. This button
simply acts as a stopwatch. If you tap on it, it starts to count up (in tenth of seconds). If
you tap again it stops. If you tap again is resets to zero and starts again. When entering
a score the value shown in the stopwatch (when stopped and not equal to zero) will be
added to the shot info.
It has been used to some advantage for several international top-archers. Their coach
started the stopwatch when the archer lifted the bow-arm, and stopped the time
when the shot happened. Then the arrow was plotted. Afterwards, the coach could tell
that the shots within a specific time window also scored best. The shots outside this
time window usually scored lower (their groups were bigger).
3.3.5.2 Timer settings
TBD
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3.4 Analyze
3.4.1 Multi-View and GroupView
TBD
3.4.2 Graphs
TBD
3.4.3 Sjef’s Arrow Selector (SAS)
The difference between the shoot-off for
gold and silver for the women’s recurve at
the Outdoor Archery World Championships
in Belek, Turkey in 2013 was about 1mm.
How do you make sure that the arrow you're
going to use for
your most precious shot ever, is the best pick of your set?
Introducing; Sjef's Arrow Selector (SAS), named after top
recurve archer Sjef VAN DEN BERG who originally came up
with the idea.
If you have a large set of shots, Artemis can assess the
grouping performance of each arrow compared with the
grouping performance of the rest of the set. It will then
order the set of arrows from best performing arrows to
worst performing arrows. You can have the best choice
for your shoot-off arrow, your best 3 arrows for
eliminations or which arrows you probably need to check
for damage.
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The set of shots that is used to base the selection on can be a single Match. In
which case you long-press a match in the Matchlist and the SAS menu button
appears. However, in a typical Match, a specific arrow is not shot many times. It would
be better to use a larger number of shots.
For better accuracy, you can use the SAS button in the Analysis tab of
the App. Create a filter (in the Analyze tab) where you can select a large
set of shots (e.g. all shots you recorded with that arrow-set in the weeks
before some major tournament). Artemis will compute each arrow's
performance as accurate as possible.
Arrows will be ordered based on their performance. The better the individual
performance compared to the entire group, the higher the arrow is in the ranking.
Usually you want to simply pick the highest arrows for your competition set.
Archery just became a game of statistics...!
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3.4.4 What is a Filter?
When you have collected a lot of data about your (or your athletes) shooting, you can
do different kinds of analysis. First step is to define filters. A filter is a selection or subset of shots from all the shots in your database. The following selections are examples
of filters
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All shots shot on a specific date
All shots shot at a specific distance
All first shots of each end you ever shot
All shots with a specific bow-setup
Etc.
It becomes even better when you combine these
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All shots shot in a date range, on distances greater than 50m, which were the
1st shot in every end, shot with a specific bow-setup.
Etc.
When you select the analysis tab and in that, the group or multiview tile, you get
presented a filter-page. This page consists of 6 tabs (for a maximum of six different
filters).
3.4.4.1 Setting up a filter
At the top of the filter page, a total of 6 tabs representing a maximum of 6 filters, are
shown. Each filter is either activated or deactivated. A green checkmark
indicating filter activation and a red cancel
symbol
symbol indicating its deactivation.
A single filter can be activated/deactived with its checkbutton, has a name (that can be
changed) is shown in a specific color-coding and has a list of filter-items.
Filter-items are parts of the filter that can be used to define a selection of shots. Filteritems can be activated individually by checking their checkboxes
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Tags
Questions
Form-change
Bow-Setup
Quiver
Date
Match
Distance
Weather
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End/Serie
Shot-Order
Shot-Rating
Shot-Timing
Volume
Accuracy
If multiple filter-items are active, these are AND-ed together. For example, if the Date
filter-item is active and the Setup filter-item is active, the resulting selection of shots is
the set of shots that comply with both the Date filter-item AND the Setup filter-item.
3.4.4.1.1 Filter-item: Tags
Select all shots/matches where this tag was added to the match (where the shot was
made)
3.4.4.1.2 Filter-item: Question
Select all shots/matches that were shot on days where the selected question was
answered with the selected answer
3.4.4.1.3 Filter-item: Form-change
Select all shots before or after the selected form-change
3.4.4.1.4 Filter-item: Bow-Setup
Select all shots made with selected Bow-Setup
3.4.4.1.5 Filter-item: Quiver
Select all shots made with arrows from the selected Quiver. From the selected Quiver,
selections can be made even more specific:
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When checked, select only shots made with one selected arrow (identification)
or with all arrows whose identification is higher or lower than selected.
When checked, select only arrows with the selected nock-color.
When checked, exclude bare-shafts
When checked, select only bare shafts
When checked, only shots with the vanes in some specific rotation will be
selected (Crossbow feature)
3.4.4.1.6 Filter-item: Date
Select all shots that were made within the selected date range
3.4.4.1.7 Filter-item: Match
Select all shots that comply with the match filter;
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Were shot in competition
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Were shot in training
Were shot in a WA Outdoor type match
Were shot in a WA Field type match
Were shot in a WA Indoor type match
Were shot in a IFAA type match
Were shot in a GNAS type match
3.4.4.1.8 Filter-item: Distance
Selects only shots that were shot at the given distance or greater than or less than
given distances or lie within some distance range
3.4.4.1.9 Filter-item: Weather
Selects all shots that were shot in the selected weather type with the selected
maximum wind-force.
3.4.4.1.10 End/Serie
Selects all shots that were shot in the selected end.
3.4.4.1.11 Filter-item: Shot-Order
Select all shots whose shot-order per end (the order in which the shot was shot per
end) lie within a range.
3.4.4.1.12 Filter-item: Shot-Rating
Select all shots that were rated and whose rating lies between the selected from and
to rating
3.4.4.1.13 Filter-item: Shot-Timing
Select all shots whose timing lie within the specified range
3.4.4.1.14 Filter-item: Volume
All shots that comply with the filters will be ordered by date and time. This filter will
then skip <offset> number of shots and display only <limit> number of shots.
3.4.4.1.15 Accuracy
This filter selects only those shots that lie within some accuracy interval. The accuracy
interval used is a circle with a radius measured in mm/m (millimeter per meter flight).
The following table gives an indication of these values;
Score
10
9
8
18m 40cm
1.1
2.2
3.3
R in mm/m for a target…
50m 80cm
0.8
1.6
2.4
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70m 122cm
0.9
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7
4.4
6
5.6
T ABLE 17 A CCURACY VALUES FOR USE IN FILTERS
3.4.4.2 Loading and saving (preset) filters
TBD
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3.5 Settings and Options
Settings and Options are divided into several sections. From the Main screen,
clicking the Options menu button will display a list of all Option categories;
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Match Input
Scorecard
Analysis & Advice
Database
Timer
Colors
Experimental
Info
In other screens, clicking on options will only display the corresponding category. For
example in the Match-input screen in the Scorecard tab, clicking on Options will display
the Scorecard category options.
3.5.1 Match Input
Option
Show partial scorecard
Scale current end
Show previous ends
Scale previous end(s)
Show current end average
With accurate nockcolor
Add shot with button
Pointer size
Left or Right handed
operation
Tactile feedback
Tone feedback
Default shot rating
Rate your shots
Confirm arrow
With vane rotation
Default vane rotation
With stopwatch
Description
When checked it includes the scoring end of a scorecard as
overlay over the target-face input area.
Scale the current end by this percentage
When checked, it shows the positions of the previous ends on
the target face as well.
Scale all previous ends by this percentage
Shows the average group of the current end on the target input
face
Draw all previous shots with the accurate nock color instead of a
default color
Use a button in the actionbar instead of a tap on the pointer to
add a new shot
Choose the size of the pointer shape
Choose to operate the Pointer with left or right hand (pointer
will be drawn to the left or to the right) or straight down.
When checked, the device will shortly vibrate on input.
When checked, the device will produce a small beep on input.
If shot-rating is checked, the default shot rating specifies what
rating is pre-selected
When checked, you must rate each shot after entering it.
When checked, you must confirm every arrow (identify) after
entering a shot.
With identification of vane rotation on rest or track (Crossbow
feature)
Select the default vane rotation to show when providing shot
details (Crossbow feature)
When checked, a stopwatch button appears than can be used to
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include timing information for each shot.
T ABLE 18 M ATCH I NPUT O PTIONS
3.5.2 Scorecard
Option
Show arrow identification
Show shot number
Show shot rating
Show timing
Show timing values
Show color background
Show vane rotation
Sort on scoring value
Description
When checked and the data is available for the shot, shows in
the scorecard and in the scoring end on the target face input the
arrow identification (number). The identification will be
displayed in white text in a black circle in the bottom right
corner of each score cell.
When checked, it shows in the scorecard and in the scoring end
on the target face input the number of the shot (i.e. the order in
which the arrow was shot in the end). The shot number will be
displayed in white text in the bottom left corner of each score
cell.
When checked and the data is available for the shot, shows in
the scorecard and in the scoring end on the target face input the
rating of the shot in 1 to 5 small blue dots. The rating will be
displayed in the bottom of each score cell.
When checked and data is available for the shot, shows in the
scorecard and in the scoring end on the target face input the
timing of each shot. The timing will be displayed in the top left
corner of each score cell.
When checked and if “Show timing” is checked and the data is
available for the shot, this shows the timing in seconds. When
unchecked, the timing information is coded with three small
colored dots. Where a GREEN dot indicates average timing, a
RED dot indicates the shot took longer than average and WHITE
dot indicates the shot was faster than average.
Checkbox, if enabled, the background of each score cell
represents the value of the score.
Shows the rotation of the vanes on the track (Crossbow feature)
When checked, the end is ordered by scoring value (which is
default in World Archery and many other scorecards). If
unchecked, the end is ordered by the order in which the arrows
were shot. For Dutch 25m 1arrow competition, this is usually the
default way to record scores.
T ABLE 19 S CORECARD O PTIONS
3.5.3 Analysis & Advice
Option
Show help
Minimum rating to analyze
Description
When checked, extra information/explanation is displayed in
several dialogs (for example in filters)
Minimum rating for a shot to be included in the sight advice or
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Sight advice window
Change Algorithm settings
Arrow Advice window
arrow advice. All shots with a lower rating will not be taken into
account.
Both the trend in the group display and the sight and arrow
advice are based on a moving window average. This means the
last n shots are used to compute the trend and the sight advice.
Check if you really know what do are doing
The arrow advice will be based on thethis moving average
window size
Directional Variance coeff
Relatie Deviation coeff
Relative Groupsize coeff
T ABLE 20 A NALYSIS & A DVICE O PTIONS
3.5.4 Database
The active database is the most valuable part of Artemis. It is where all your
information is kept; on the device itself. This means that at any time you can review
and analyze all data you ever entered. You don't need to download your data to your
PC in order to analyze it. At Artemis, we feel that your data is private! There is no need
for a third party server to store your information on (you can, but it is not required for
Artemis to function).
This also introduces a risk; the risk of losing your data. If you drop your device and it
breaks, your data is gone! If you buy a new device, your data is not on that device! If,
due to an update gone awry, your database becomes corrupt, your data is gone!
It is essential that you make backups of your database!
Option
Backup Name
Description
The Backup name of database
Google Drive (Premium only)
Backup As
Backup a snapshot of your database on Google Drive (providing
a name)
Restore
Restore a database located on your Google Drive
Sync with Google Drive Auto sync your database with a file on Google Drive. This file can
(Coached only)
be shared with e.g. a coach, see section 3.5.4.4 on how to set-up
synchronization
Local SDCARD
Backup to local SdCard
Backup a snapshot of your database on the local SdCard
Restore from local SdCard
Restore a database from the local SdCard
Dropbox
Restore from Dropbox
Restore a database from Dropbox
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T ABLE 21 D ATABASE O PTIONS
The active database is just a single file located in the install folder of Artemis. This
database (file) needs to be backed up regularly. There are several ways of backing up
your database
1. Local backup on the device itself (on the SdCard)
2. A backup in Google Drive
First some basic knowledge on storage and usage options.
3.5.4.1 Active, snapshot, SdCard or in the Cloud?
The database used by Artemis is called the active database and is just a file located
somewhere in the install folder of Artemis. This is usually hidden from the user. You
can make a copy of the active database. This copy will contain everything (all shots,
setups, arrows, questions, form changes, etc.) up to the moment you make the copy,
that’s why it is called a snapshot of the database. You can make as many snapshots as
you like. A snapshot can be saved to a local SdCard (if one is available in your device) or
to the cloud (Google Drive). Once you have made a snapshot (again; it’s just a file) you
can distribute this file anyway you like.
If something really bad happens to your device, e.g. you drop it from 10 stories high; all
internal memory (phone memory) will most likely be destroyed or no longer accessible,
but the external SD-card usually survives.
The active database is shown at the top of the Database-Options screens . If the active
database has been backed up or restored, the name of the snapshot is displayed here.
If the active database contains changes compared to its last snapshot it is displayed
here as well.
If you try to restore a snapshot and your active database contains changes (i.e.
unsaved information). You will get a warning! Make sure you know what you’re
doing if you ignore this warning, because you will overwrite your active
database!
3.5.4.2 Local backup to and restore from SdCard
The default name for your snapshot is the current date and time. This
guarantees that all snapshots are unique. You can also name your
snapshot yourself. If you are a coach and have several athletes databases
and their backups, it might be a good idea to prefix the date and time with
the athletes name (e.g. VANDENBERGSjef-2015-01-07-103718) Snapshots to
SdCard can be found in the folder:
/sdcard/Artemis/Backups/<databases>
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3.5.4.3 Google Drive backup and restore (Premium feature)
If you have Premium features you and want to be extra safe in case
something disastrous happens to your device, you can make backups to
your Google Drive. Backups can be restored from Google Drive as well.
Please be careful when you have two devices with the same account. Both
devices can backup and restore the same database snapshots from the same
Google Drive account. Do not accidentally overwrite backups!
3.5.4.4 Google Drive Database Synchronization (Coached feature)
There is an auto-synchronization feature (in Coached mode only) where you can setup
a share between you and your coach/trainer/etc. It allows you to regularly upload your
active database to the cloud and your coach/trainer/etc. can download it in Artemis
and follow or analyze your progress. Follow these steps to setup database
synchronization
Prerequisites:
1. Both the archer and the Coach need to have upgraded Artemis to
ArtemisCoached
2. Both the archer and the Coach need to have a Google Drive account and the
Google Drive app installed
Steps to follow:
1
Select “Backup as” to make a snapshot of the active
database on Google Drive
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2
This Google Drive screen appears, select the “My Drive”
dropdown
3
It is adviced that you create a new folder for your Artemis
backups. In this example; SharedWithCoach.
Name your shared database file (in this example;
VANAPELDOORNMarcel)
And save…
4
4
Wait for the success dialog to be shown
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5
Select “Sync with Google Drive”
6
Select the file you just created on Google Drive (in the
example; VANAPELDOORNMarcel in the Folder
SharedWithCoach)
7
Wait for the success dialog to be shown
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8
The checkbox should be checked and the active database
(top
of
the
screen)
is
now
named
VANAPELDOORNMarcel and auto-synced (almost)
From now on….. When your active database contains
changes (new data) compared with the Google Drive
linked database, a small icon (left)
appears in the ActionBar (on the bottom
for mobile phones or at the top for
tablets). If you click on this icon, the app
synchronizes the active database with the
Google Drive database.
The synchronization is one way!! From Artemis to Google
Drive.
You don’t need to do this all the time, just do it once a day
or week.
Next step is to make the file on Google Drive available to your coach/trainer. To do
this, follow these steps
1
Open the Google Drive app
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2
Select the folder where you stored the database
snapshot. In the example SharedWithCoach. Now
click on the small info (i) symbol right next to the file
name of the database snapshot
3
Set the “Keep on device” to “On”, and click on “Add
people”
4
Add
the
google
account
Coach/Trainer/Spouse/etc.
name
of
your
Select “Can view”. This is important, because by default
“Can edit” is selected and you don’t want your database
to become corrupt when your Coach/Trainer/etc. by
accident makes changes.
Add a note and select “Add”
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5
Upon success, you will see a small notification and the
person you have added is added to the list of people who
have access.
6
You can revoke access at any time!
3.5.5 Timer
Option
Prepare Time
Shooting Time
Orange Time
With sound
With voice countdown
20
15
10
9,8,7,6
5,4,3,2,1
T ABLE 22 T IMER O PTIONS
Description
Time for Red light (archers prepare)
Time for green + orange light (total shooting time)
Time for warning (orange) light
When checked, the timer will play the correct beeps
The timer will countdown the last few seconds in the language
that you have choosen
Check for “20 seconds”
Check for “15 seconds”
Check for “10”
Check for “9”, “8”, “7”, “6”
Check for “5”, “4”, “3”, “2”, “1”
3.5.6 Colors
Most colors used in the app can be customized or reset to their default values
3.5.7 Experimental
As the name indicates, this is experimental stuff and may be changed every release.
Please use with caution!
ALWAYS MAKE A BACKUP OF YOUR DATABASE BEFORE TRYING EXPERIMENTAL
STUFF!
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3.5.8 Info
Option
Lanuage
Want
to
translation
Version
Description
Change the default language of the app
help
with Website explaining what to do if you want to help with
translating Artemis in your language
Displays the version of the App
Clicking brings up the What’s New dialog
Database version
Display the version of the database
QR tag version
The current QR tag versions (mostly downward compatible)
Unlock with developer key
Displays a dialog to unlock special features. This is ONLY for
unlocking the App on special requests. If you want to unlock
Premium or Coached features you need to do this in the Main
Help menu
Reset First Time Help
Reset Mailings
Reset Background
Reset defauts
T ABLE 23 I NFO O PTIONS
The dialog displays a security string (which is based on the
Google Account and the Device Id). The reply to this security
string should be a number you have received form the
developer. Enter this number and your App will be given
appropriate permissions
All First-Time-Help dialogs which you have checked “Do not
show again”, will be reset, and thus shown again
All mailings will be reset and you will receive notification if there
is mail
Reset the background
Reset all options to default values
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4 Tips and Tricks
The best way to learn is by example. And since Artemis has been tried and tested by
Team Netherlands for more than 2 years in Worldcups, European and World
Championships this chapter will provide examples with actual data of that period.
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4.1 Shooting order
An example of what kind of analysis is
possible with Artemis. This is a real-life
example! Two archers (one lady compound
and one lady recurve) have shot the
qualification round at the World Cup
Wroclaw in Poland in 2013.
All shots have been recorded in shooting
order. For the recurve, these were 144
arrows recorded on 4 different distances
(70m, 60m, 50m and 30m) whilst on the
compound side, all 72 arrows were shot at
50m. Both archers shot ends of 6 arrows.
In the Analysis tab, the so-called Multi-View is
chosen where 3 views (or filters) have been
prepared. The first view is named "1, 2" and is
a "shot-order" filter that selects all shots from
1 to (including) 2. So this view will show all
first and second shots of each end. The
second view is named "3, 4" and filters shot 3
to (including) 4. So every 3rd and 4th arrow of each end will be shown in view "3, 4".
The 3rd filter does the same for the last 2 arrows of each end.
For the compound, we select as reference target the 80cm at 50m target, since this
was the actual target used for all 72 shots.
The Image on the left is the result. Note that the top-left, top-right and bottom-left
represent the filters and the bottom-right view shows all arrows in a single target face.
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Now for the recurve lady, we have done the
same. There is however one difference; recurve
shoot their qualification round on 4 different
distances with 2 different target faces. So we
need to choose a reference target and distance.
The Multi-view on the right shows all shots on a
single reference target (in this case a 122cm set
at 70m).
Again, the upper left hand target face shows all
1st and 2nd shots of each end. The upper right
shows all 3rd and 4th shots of each end and the
lower left all 5th and 6th shots of each end. The
lower right view shows all shots on a single face.
The Multi-view clearly shows a trend; the
archer is starting each end on average in the
center of the target face but slowly creeps to
the lower left during the end of 6 arrows. This is
consistent throughout the 4 distances that have been shot. How and why this happens
and how to solve it is left to the archer and coach, that's not something this app is able
to provide, but it does show the strength of a tool such as Artemis.
Note that not all arrows on the recurve Multi-view are drawn with the same diameter.
The reason is that the diameter of arrows shot at 30m on an 80cm target face is
slightly exaggerated on the 70m 122cm reference target and also not in exactly the
same position.
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4.2 Dare-2-Dream
Introducing the feature called Dare2Dream. This feature will take a set of shots, for
example the match you just competed in, and compute the theoretical maximum
score that could have been reached, when the group was positioned better.
Take for example this (true) data from a compound archer who shot a nice score (682
at 50m) in competition. Everything was fine, so there was no need to adjust the
sight.... was there?
1) Go to Match Input
2) Go to the Group tab
3) Press the �Dare2Dream’ cloud
4) Artemis will compute and inform you about
the maximum theoretical score that would
have been possible with exactly those shots.
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Not really a big difference. The group might have scored just a fraction better (+4
points) if the sight was set correctly. In international competition, typically one extra
point means one position higher ranking in qualification!
Some might argue that this will not add anything to your game, that it's just wishful
thinking. I partly agree, yes, it is wishful thinking, but I disagree that it will not add
anything to your game. It shows you what your scoring ability as an archer is (i.e. the
ability to shoot accurate shots). But at the same time it will show you how good and
alert you are in adjusting your sight. It is a very common mistake, especially with
modern sights that have very fine adjustments, to under-estimate the amount you
need to change your sight. If you often have a significant difference in points between
your actual score and the 'Dare2Dream' score then you might need to spend some
training sessions on how to adjust your sight. And knowing how to operate your sight
is a much easier feat to learn than shooting your shots even more accurate than you
already do.
Learn how to use your sight!
Here's another real-life example of a recurve archer who scored 300 points at 70m
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4.3 Form Changes
With ArtemisPremium it is possible to compare archery performance before and after
some arbitrary change. This change can be anything worth writing down so it can later
be used to compare performances in a before/after comparison. It could be a technical
change in the archers shooting form, a habitual change, different clothing/footwear,
different preparation/nutrition, etc. A change becomes effective at some date. Later
on, a filter can be created to select shots before and after this (form)change and
review if it has improved the archers performance.
See the example below, where a change in finger hooking (especially the third finger
was gripped a bit deeper) is introduced at some point in time.
1) Go to the Archer tab
2) Select Form-Changes and add a new
Form-Change
3) In the Analysis tab, create a new form
filter for each before and after the form
change
4) Review the results of the form-change
In the Archer tab (1), a new Form-Change is created (2). Write down everything
important about the form change. Now starts training your ass off... After a week (or
more) and some 500 arrows further two filters can be created; one filter selecting all
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shots before the change and one filter selecting all the shots after the change (3),
press analysis and look at the results (4)
This looks like a simple feature, but it actually is very useful. There are a lot of things that
will help an archer to become better or get a higher score. Anything from nutrition,
clothing, footwear, mental state and preparation. All these things have nothing to do
with the setup of your bow (although you could write them down in Setup), it's all about
the archer itself! What did you change about yourself, and did it work???
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4.4 Arrow Tuning
Before the start of the 2014 outdoor season, World Champion Mike Schloesser used
ArtemisPremium to select between two different arrow builds. In a single arrowset, a
subset was prepared one way and the other
subset was prepared in an alternative way. Next
up; several hundred shots with arrows from
both subsets, shot at random but plotted by
arrow identification.
Halfway the training session, results were
already showing a winner. The subset in the top
target face showed a significantly smaller group
than the subset on the bottom target face.
Equipment choices were made based on what
ArtemisPremium had computed.
Some argue that you can do this with a shooting
machine. I disagree! A shooting machine fires
perfect arrows, and eventhough Mike Schloesser most of the time acts like a shooting
machine he is not. The occasional “not so good” shots are the ones you want to tune
to the center. A shooting machine is perfect to match an arrow set but not very useful
for tuning an arrowset to an archers particular style of shooting.
Suppose an archer wants to test different fletching offsets and has a single set of 12
arrows.
1. Prepare 6 arrows with one offset and use one nock color. Prepare another 6
with a different nock color.
2. Now, create a new ArrowSet in ArtemisPremium (don’t use your regular set,
because you are actually changing it for some tests) and make a note on which
nockcolor is which fletching offset
3. Shoot a lot of arrows and plot them all. Shoot them randomly (not in the same
order)
4. You can even shoot at different distances!
5. When finished, go to analysis mode
6. Create two filters for that particular day and that particular ArrowSet and both
nock colors
7. Plot, analyse and pick the best (smallest) group. The groups don’t necessarily
need to be in the center because the fletching may have different drags (and
you only shot with a single sight setting, and didn’t change the sight during
plotting!)
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4.5 Tuning
The following example is fictitious, but still shows what can be done with this app
Suppose we want to do some bare-shaft tuning.
Select the arrow-set to do the tuning with
Select the individual arrow view
Select the arrow(s) that you are going to rip off its vanes (in our case two arrows, #17
en #16)
For each arrow, select it and make tick 'Bare shaft', then save
This is the set you end up with. An arrow-set with two bare shafts, #16 and #17
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Now suppose you want to compare your normal nocking-point of 5mm with a nockingpoint of 7mm.
Start with your normal setup of 5mm
Create a match for this setup (in this example 6 ends of 4 arrows)
Shoot the match, shoot 3 fletched arrows and a bare shaft (so either #16 or #17) and
mark the results on the app
Adjust your nocking point on your bow (your real bow, not the app...)
Copy your 5mm setup and change the nocking point to 7mm
Create a match and shoot with your new setup and record in the app
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Now start analysis
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5 Technical Details
This chapter describes the technical details and mathematical foundation of the app. It
describes how the sight advice really works, what the database looks like and why a
normal distribution is insufficient and a new kind of distribution is used. All rather
technical and not always easy to understand. This chapter is for those who want to
know “how things work?”
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5.1 Sight Adjustments
A recent study2 shows that top-archers at international tournaments lose score due to
incorrectly adjusting their sights. This suggests that beginning and intermediate
archers lose score as well, and perhaps even more. That is why ArtemisPremium has a
sight advisor function.
Computing the absolute sight settings based on nothing else but the parameters of the
bow/arrow combination is difficult for a
compound archer and impossible for a recurve
archer. However, it is possible to determine
relative sight adjustments based on known
positions of the arrows on the target face.
This can be illustrated by the following simple
example;
F IGURE 22 P ERFECT SHOT ARROWS GROUP
TO THE LEFT
Assume there is a nice group of almost perfectly
shot arrows (aimed at the center) that land to the
left in the 9 ring. Suppose the arrows were shot at
50m on an 80cm target face. The center of the
group of arrows lies exactly at the same height as
the center of the target and to the left at around
9.5. As shown in Figure 22.
How much would you adjust your sight?
The sight picture of these perfectly shot arrows
would have looked like Figure 23. The sight pin
dead-center, and we can just see the group of 3 F IGURE 23 S IGHT PICTURE
arrows to the left in the nine-ring.
Clearly the sight is set wrong, the perfect shot arrows did not land where was aimed.
However, if the sight-pin would have been set as shown in Figure 25, it would be
2
Analysis of scores and arrow grouping at major international archery competitions, J.L. Park and J.E.
Larven, 2014
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perfect; the perfect shot arrows actually landed where was aimed, unfortunately the
aim was not in the center but at 9 o’clock in 9 ring.3
F IGURE 25 S IGHT ADJUSTMENT
F IGURE 24 S IGHT A DJUSTMENT
So the question is, how much is the value d, as depicted in Figure 24? This value d is
how much sight pin needs to move.
F IGURE 26 C OMPUTING RELATIVE SIGHT ADJUSTMENT
Figure 26 gives the answer. Everything else being equal, the ratio D (D = Group
deviation on the target face) to L (L = Distance of archers eye to the target) equals to
3
This example assumes that the archer is aligning the string on the handle (and not on the sight pin
itself).
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the ratio d (d = the sight adjustment needed) to e (e = the distance of the sightpin to
the archers eye).
Let’s try some typical values:
e = archers-eye to sight pin = 85cm = 0.85m
L = 50m
D = 60mm (a group whose center is in the middle of the 9-ring on a 80cm target face,
lies about 60mm from the center)
рќ‘‘=
рќђ·
60рќ‘љрќ‘љ
в€—рќ‘’=
в€— 0.85рќ‘љ = 1.02 рќ‘љрќ‘љ
рќђї
50рќ‘љ
If this was shot by a recurve archer using the Shibuya Ultima RC sight, the windage
adjustment 1/32 inch per revolution which is approximately 0.8mm per revolution. So
to get this group dead-center we need more than a full turn of the sight windage knob.
With such a sight having 20 clicks in each full turn, you would need 26 clicks!!
Just for fun, let’s compute how much one click will move our group at 70m. With the
Shibuya Ultima, 1 click moves the windage 0.04mm
рќђ·: рќђї = рќ‘‘: рќ‘’ в†’ рќђ· = рќђї в€—
рќ‘‘
0.04рќ‘љрќ‘љ
= 70рќ‘љ в€—
= 3.3рќ‘љрќ‘љ
рќ‘’
0.85рќ‘љ
Each windage click will only move the center of your group at 70m just over 3mm!!
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5.2 Arrow Advisory
The arrow advisory tries to find inconsistent arrow behavior. The challenge is to find it
as soon as possible, but the archer is still human and not a shooting machine, so most
mistakes (deviations) are introduced by the archer, and only some can be due to the
fact that the arrow is broken or in any other way inconsistent.
Simulations have been performed with the Arrow Advice algorithm to work with
different archer’s skill level. The higher the level, the smaller the arrow inconsistency
you want to identify.
The two plots below show one such simulation. On the left are shots performed by an
archer with skill level 90 (approx. 9 ВЅ average on 18m). The shots on the left are with
consistent arrows. The shots in the right plot are simulated with an arrow being
consistent (blue) and suddenly (at shot number 31) becoming inconsistent (in this case
it starts to group on average to the right)
-6.000
6.000
6.000
4.000
4.000
2.000
2.000
0.000
-1.000
-2.000
4.000
-6.000
0.000
-1.000
-2.000
-4.000
-4.000
-6.000
-6.000
4.000
The next graph shows the arrow advisor function inner workings. It detects the
directional variance of the arrow’s moving average position compared with the
position of the other arrows. You expect the variance to be high (an arrow which
groups consistently to one side has a small directional variance). So if the inverse
grows, the arrow behaves inconsistent. The second (and third) parameter is the
relative deviation of the position of the arrow compared with the standard deviation of
the group of the other arrows. In human language; if the arrow groups outside of the
group of other arrows, it is inconsistent. The fourth (and fifth) parameter is the relative
group size compared to the relative group size of the other arrows. Again in human
language; if the arrow’s group becomes bigger than the group of all other arrows, it is
inconsistent.
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3
2
1
0
1
3
5
7
9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47
DirVar
RelDevX
RelDevY
RelGrpX
RelGrpY
ALARM
As shown in the graph, the warning is triggered at shot 33 (only two shots of the
inconsistent arrow were needed to identify it!).
This early warning system also means that sometimes (look in the graph around shot
23) false alerts will be triggered as well.
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5.3 The database
All data is kept in a SQLite database on the device itself. This means that at any time
you can review and analyze all you ever entered. No internet connection is required
and you don't need to download your data to your PC in order to analyze. You should
know something about how the database is designed in order to get the fullest out of
the application. Data is stored in so-called tables where each row is a different entry in
the table. The columns of the table are the different attributes you want to store for a
single entry. For example, the table Shots consists of rows, where each row denotes a
single shot. Every shot consists of;
п‚·
п‚·
п‚·
п‚·
п‚·
a position
a reference to the arrow that was used for that particular shot,
a reference to the match it was shot in
a reference to the serie or end it was shot in
other information (like shot rating, value, etc.)
The Serie (or end) table, contains the serie number and a reference to the match it was
shot in. The Match table contains lots of information about the match (where it took
place, when, what kind of match is was, etc.)
F IGURE 27 E XAMPLE OF DATABASE STRUCTURE
These tables are needed to record the arrow positions and scores, but for the analysis,
we need more information. Each row in the Arrow table contains information about
one single specific arrow and a reference to the arrow-set it belongs to. The ArrowSet
table contains the generic information about a particular set of arrows (e.g. they are all
of the same manufacturer, type, shaftlength etc.). Next we have the Bow table which
contains some generic (fixed) data about your bow; manufacturer of handle and
manufacturer of limbs, marked weight on the limbs, etc. All data about your bow that
cannot be changed. Then there is the Sight table which contains your sight (or all the
different sights you have). Each row in this table contains data about sight
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adjustments; i.e. how many turns windage or elevation result in 1mm movement of
the pin, etc.
One of the most important tables is the BowSetup table which is the main table for
tuning parameters and which also “glues” the Bow and Sight table together. Each row
in the BowSetup table represents a different setup. Here you reference a specific bow
and sight and you can store (and thus change) different braceheights, weight at full
draw, tiller and nockingpoint settings, etc.
The Match table (as mentioned already) is where you link a match with a bowsetup
and an arrowset.
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5.4 Coordinate Reference Systems
Most archery related tools store the arrow positions in a coordinate system relative to
the target face that was shot on. This position is usually expressed in polar coordinates
(e.g. a seven on 3 o'clock) or in Cartesian coordinates (10cm right from the center and
8cm above the center). Units may differ as well. Instead of cm's one might use pixels
(on the image of the target face), mm's instead of cm's, rings (10, 9, 8, etc) or degrees
instead of the clock-indication. However, all these coordinate reference systems fail to
identify that these are all relative to the target face and relative to the distance shot at.
Every archer who has ever shot at different distances knows that some distances are
'harder' than others4, i.e. the personal best score on 30m (on a 80cm target face) is
always better than that of 50m (on a 80cm face).
5.4.1 Why?
The answer is simple; the intrinsic scoring ability of the archer is
the same on all distances. The ability of the archer dictates the
accuracy by which an arrow is shot. An arrow is released with an
initial error and this error is
magnified by the distance
traveled. An arrow shot at 18m
which lands on the edge of the nine (no matter
high/low, left or right) has deviated 40mm from the
center of the face in 18m of travel5. Its deviation
thus is around 40/18 mm/m = 2.22 mm/m. If this
arrow was shot at, say 50m at an 80cm face, it
wouldn't have landed on the edge of the nine, it
would have landed (taking parabolic effects, aerodynamic drag and effects and wind
out of the equation) 2.22mm x 50m = 111mm = 11.1cm from the center (far in the 8
ring, a few mm's from being a 7).
Recent study has shown that the human error in archery consists of errors which
increase linearly with distance and errors which increase quadratic with distance6.
Artemis takes a different approach than most apps that you can use to score your
arrows. It stores the position of the arrow in a right handed Cartesian coordinate
4
. Distances are not actually 'harder' or more difficult. Shooting arrows at any distance on any target
face is the same. It's our scores that are different, which is why people might consider some distances
'harder' than others.
5
. Even a bit further than 40mm if we take the shaft diameter and the parabolic flight path into account
as well. The centerline of the shaft may have deviated 44mm when the shaft (of 8mm diameter) is just
touching the 9 ring. For this explanation we assume the shafts are infinitely thin.
6
See J.L.Park, “Modelling archers’ score at different distances to quantify score loss due to equipment
selection and technique errors”, Part P: Journal of Sports Engineering and Technology
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reference system in so-called devs or deviations. A dev is expressed in mm/m
(millimeters per meter). Where x represents the amount of horizontal deviation from
the center or the target face and y represents the amount of vertical deviation from
the center.
So why would you want to store the arrows in this counter-intuitive and complex
coordinate reference system?
Again, the answer is quite simple. Archery is all about statistics, and in order to
perform statistical analysis, you need to be able to compare all data available. If you
store your arrows in a target-face and distance depending coordinate system you can
only compare data when shooting the same distance on the same target face. But
when shooting an outdoor FITA round on 4 different distances or when shooting a field
round on all different distances and target faces, you can only compare your data if it
is stored in a distance and target-face independent coordinate reference system.
5.4.2 How does this work?
First we need some terminology, because Artemis takes a very different approach
from most other archery and shooting related analysis software.
If we think of an arrow on a bow, ready to shoot, as a single infinitely small point
(instead of the object it actually is) that starts out at some point and moves along
some path to its final position on the target face. There are three different (straight)
lines we can draw.
Line of objective; which is the line from the initial position to the center of the target
face; our objective.
Line of aim; which is the line from the initial position to the position where the perfect
arrow shot from a perfect bow in perfect conditions (no wind) with perfect technique
and perfect aim, would land. If the sight is set correct, then this will be the same line
and the line-of-objective.
Line of flight; which is the line from the initial position to the position where an
imperfect arrow shot from an imperfect bow in imperfect conditions with imperfect
technique (and thus imperfect aim) would land. This is (unfortunately) what we
archers do from shot to shot.
So when the point where your arrows hit does not coincide with the center of the
target this can only be for two reasons:
1. You shot with perfect aim and perfect equipment under perfect conditions and
with perfect form but failed to set the sight correctly, so the arrow landed
where it was supposed to land; at your point-of-aim.
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2. You failed to shoot perfectly with perfect equipment in perfect conditions.
There is no way of knowing (for a single arrow at least) if in the second case the sight is
set correctly or not! And unfortunately, since we're all human, it is the second case
that we shoot our arrows in.
Artemis assumes that every archer shoots its arrows scattered around some point.
Most arrows will land near this point and some arrows will land further from it. The
distribution in which this occurs is assumed to be a normal distribution7. In statistical
analysis, a normal distribution is a very common symmetrical distribution. A normal
distribution is defined by its shape, its average and its standard deviation value.
5.4.2.1 The normal distribution
A normal distribution is symmetrical around the average point on the target face
(which coincides with the center of the target face if the sight is set correctly). All
archers of all abilities and level (Olympic champion or club beginners) with their sights
set correctly will shoot, on average, perfect tens! Their normal distribution only differs
in standard deviation. The standard deviation (denoted Пѓ) is a number which indicates
(for normal distributions) how many percent of all arrows shot will lie within some
distance of the average. For normal distributed shots, 68% lies within the range -Пѓ to
+Пѓ and 98% lies within the range -2Пѓ to +2Пѓ.
For example, with the sight set correctly on the center, an archer with a standard
deviation of 1 ring (on a 40cm face at 18m) means that an archer will shoot 98% of
his/her arrows in the 8 (2Пѓ ) or higher. An archer, having a standard deviation of 2 rings
(again on a 40cm face at 18m) will shoot 68% of his/her arrows in the 8 (Пѓ) or higher
and 98% (2Пѓ) of the arrows in a 6 or higher. In theory, both archers can still miss the
target completely, only at different probabilities. For those who like to know, the first
archer will shoot XXX and the second will shoot XXX.
So as explained, the difference between a mediocre archer and a good archer is
his/her standard deviation, i.e. how accurate he/she is at shooting at his/her average
aiming point. In archery this is known as the size of your groups.
However, this is all theory; an archer is not symmetrical in making its errors, so why
should the distribution be symmetrical? Artemis first assumes that the horizontal error
is uncoupled from the vertical error and that therefore the values for the horizontal
normal distribution can be different from the values of the vertical normal distribution.
A second assumption is that archers are not symmetrical in making errors and that
both distributions (horizontal and vertical) need to be split up in left/right and
up/down).
7
In a recent study of J.L.Park this assumption was proved to hold
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5.4.2.1.1 Mathematical definition of the normal distribution
For those who don't like math, skip to the next section and just rely on the results and
advices of Artemis, they are correct and most likely the most accurate you will find in any
archery related (or shooting related) notation and analysis application. If you do like
math, keep on reading this section.
For any set of N values z, the average zavg of this set can be computed as;
∑ 𝑧𝑖
𝑧𝑎𝑣𝑔 = 𝑖=1..𝑁
рќ‘Ѓ
The standard deviation of this set can be computed with;
∑ (𝑧𝑖 − 𝑧𝑎𝑣𝑔 )2
рќњЋ=
рќ‘–=1..рќ‘Ѓ
рќ‘Ѓ
For a given set of shots, computing the average is straight forward. If arrow i lands at
point Pi defined by Cartesian coordinates xi and yi, then the average point of hit Pavg
with coordinates xavg and yavg for a set of i shots is computed as;
рќ‘Ґрќ‘Ћрќ‘Јрќ‘” =
∑𝑥𝑖
рќ‘Ѓ
and 𝑦𝑎𝑣𝑔 =
∑𝑦𝑖
рќ‘Ѓ
And because we assumed the horizontal and vertical errors as being uncoupled, the
standard deviations can be computed (uncoupled) as;
рќњЋрќ‘Ґ =
∑(𝑥𝑖 −𝑥𝑎𝑣𝑔 )2
рќ‘Ѓ
and 𝜎𝑦 =
∑(𝑦𝑖 −𝑦𝑎𝑣𝑔 )2
рќ‘Ѓ
This is for the symmetrical case, now for the asymmetrical case which Artemis
assumes, the formula for the averages still holds, but for the standard deviations
become;
𝜎𝑥≥0 =
𝜎𝑦≥0 =
∑(𝑥𝑖 −𝑥𝑎𝑣𝑔 )2
𝑁𝑥≥0
∑(𝑦𝑖 −𝑦𝑎𝑣𝑔 )2
𝑁𝑦≥0
∀𝑥 ≥ 0 and 𝜎𝑥<0 =
∀𝑦 ≥ 0 and 𝜎𝑦<0 =
∑(𝑥𝑖 −𝑥𝑎𝑣𝑔 )2
рќ‘Ѓрќ‘Ґ<0
∑(𝑦𝑖 −𝑦𝑎𝑣𝑔 )2
𝑁𝑦<0
∀𝑥 < 0and 𝑁𝑥<0 + 𝑁𝑥≥0 = 𝑁
∀𝑦 < 0and 𝑁𝑥<0 + 𝑁𝑥≥0 = 𝑁
They look quite complex, but they essentially say that the standard deviation in x
direction to the right is the standard deviation of that part of the population of shots
that err to the right, whilst the standard deviation in x direction to the left is the
standard deviation of that part of the population of shots that err to the left. And the
same goes for y direction.
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5.4.3 Relative arrow diameter
Figure 28 shows a rather strange situation. It
shows all shots that were shot with a single
arrow-set. Thus all arrows in the image on the
left have the same diameter, and still they get
depicted with different diameters? This is quite
difficult to explain. Suppose you have shot a
number of arrows on 90m and some on 30m on
different target faces, etc. When you want to
compare all the shots, Artemis has to show
them on the same face on the same distance. It
is incorrect to assume that an arrow that landed
in the 8 ring at 122cm face at 90m was shot with
the same accuracy as an arrow that landed in
the 8 ring at 80cm face at 30m. So in order to
correctly compare shots, Artemis computes the
relative position of each arrow independent of
distance and target face. All arrows are
computes on a thing called a unit-target-face.
However, on this unit-target-face, an arrow shot
DEPICTED WITH DIFFERENT DIAMETERS ? at 90m (with an actual arrow diameter of 5.5mm)
will have a different relative diameter than the
same arrow that was shot at 30m on an 80cm face. Both shots with the same arrow
are depicted on the unit-target-face with correct relative positions and with correct
(but different) relative diameters.
F IGURE
28
A
SINGLE
ARROWSET
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6 Quick start
Once installed you want to test drive your new app as soon as possible. If you did a
fresh install, the first time you start the App you get presented an “About” screen and
a “What’s new” screen. On fresh first start, two generic setups are added to the
database;
1. A generic recurve setup
2. A generic compound setup
Also two arrow-sets with each 12 arrows will be added to the database as well8;
1. A generic small diameter arrow set
2. A generic big diameter arrow set
To quick-start with the App, follow the steps in the table’s left column. To use the App
quickly and get valuable feedback on sight-settings as well, follow the steps in the
table’s right column;
8
If you want to (re)create these generic setups and arrow-sets, go to Options, then Database and select
“Add generic data”
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Quick Start
Quick start (no sight advice)
Quick start with correct sight advices
1.
Go to the setup tab
1.
Go to the setup tab
2.
3.
Select Bow-Setup
Select the bow-setup you are intending
to use (recurve or compound)
2.
3.
Select Bow-Setup
Select the bow-setup you are intending
to use (recurve or compound)
4.
Click the
4.
Click the
5.
your default setup (a green star
will
be shown in the setup)
Click back and select the Quiver tile
6.
7.
8.
9.
symbol to make this setup
Select the arrow set you’re intending to
use (small vs big diameter)
Click the
symbol, to make this your
default arrow-set
Click back
Now you’re set to create your first Match
5.
6.
7.
8.
9.
symbol to make this setup
your default setup (a green star
will
be shown in the setup)
Click edit to edit the still selected setup
Find the entry “Eye-pin distance”,
measure this (see 3.2.3.1 on how to do
this) and enter this value
Click save
Click back and select the Quiver tile
Select the arrow set you’re intending to
use (small vs big diameter)
10. Click the
symbol, to make this your
default arrow-set
11. Click back
12. Now you’re set to create your first Match
Suppose you want to try the App with a 30 arrows 18m Match. Do the following;
1.
Go to the Record tab
1.
Go to the Record tab
2.
3.
Select Match
Click the
button to define a new
Match
Notice that the first item (Bow-Setup) has
your default setup and arrow-set already
selected
In Format the default is a 30 arrows 18m
match
2.
3.
Select Match
Click the
button to define a new
Match
Notice that the first item (Bow-Setup) has
your default setup and arrow-set already
selected
In Format (all defaults are OK)
4.
5.
6.
4.
5.
a.
Click save
b.
c.
d.
6.
In “Environment” (All defaults are OK)
a.
b.
c.
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Choose a type, e.g. WA Indoor
(World Archery Indoor types)
The target face defaults to a 5 ring
40cm face. If you like a full 40cm
face better, choose this
Default format is 10 ends of 3
arrows (which is already selected)
You might tick the checkbox
“competition” if you’re shooting a
competition. For a training, leave it
unchecked.
Enter the location
The date is the current date
In outdoor competitions you might
enter the weather conditions if you
like
7.
In “Notes” you can enter anything else
you want to be stored in the database
8.
Click save
Artemis User Manual
To start recording
1.
Select the created Match
1.
Select the created Match
2.
3.
Click the
to start the next end
Enter your shots
2.
3.
Click the
to start the next end
Enter your shots
a.
b.
c.
d.
e.
4.
5.
6.
Move the face with your finger
Zoom in/out by holding the face
with your finger, then move
up/down
Move the pointer to the correct
location
Click on the pointer to add an arrow
Select the arrow number
Repeat for 3 arrows
Start over at step 2
If you have the Premium version;
a.
a.
b.
c.
d.
e.
4.
5.
6.
If the arrow advice
symbol
appears, press it to get advice on
which arrows to check
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Move the face with your finger
Zoom in/out by holding the face
with your finger, then move
up/down
Move the pointer to the correct
location
Click on the pointer to add an arrow
Select the arrow number
Repeat for 3 arrows
Start over at step 2
If you have the Premium version;
a.
If the sight advice
symbol
appears, press it to get an advice on
how to adjust your sight.
b.
If the arrow advice
symbol
appears, press it to get advice on
which arrows to check
Artemis User Manual
7 Iconography
The following list of tiles is used throughout the app
Tile
Purpose/Description
To indicate a main feature that is unavailable. This happens when there is
not enough data in the database to use this feature, or this feature is a
Premium feature and the app is not unlocked
Form-Changes. Shows the list of your (form)changes. Form-Changes can
be created, edited or removed and are used to analyze before/after
performance.
Bow. Shows the list of your bows. Bows can be created, edited or
removed and are used to define a Bow-Setup.
Sights. Shows the list of your sights. Sights can be created, edited or
removed and are used to define a Bow-Setup.
Arrowsets or Quivers. Shows the list of different arrowsets you have
defined. Arrowsets can be created, edited or removed and filled with
individual arrows. Arrowsets are used in Rounds and Matches.
Bow-Setup. Shows the list of different setups you have defined. Bowsetups can be created, edited or removed and are used in Rounds and
Matches.
Rounds. Shows the list of Rounds you have shot. Rounds can be created,
edited or deleted. Rounds are just a collection of Matches.
Match. Shows the list of your Matches. Matches can be created, edited or
removed.
Sight-Settings.
Archery Timer. This starts an Archery Timer. A simple countdown timer
you can use during practice.
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Multi-view analysis.
Group-view analysis
Graphs
Sjef’s Arrow Selector.
T ABLE 24 T ILES AND I CONS
The following list of menu/action-item buttons is used throughout the app
Menu item
Purpose/Description
Add something
Copy the selected item
Edit the selected item
Delete the selected item
Help
!
With the red , you have new mail
Without, then read latest mail from Artemis
Start the match or go to the next end
Go to the previous end
The rating filter is active and (in this case as indicated) set to 3
Dare-2-dream about the current score
Analyze
Arrow advice! There might be something wrong with an arrow you are
using.
Sight advice (in this case indicated to be based on last 4 shots). Please
review the advice to adjust your sight.
Save
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Options
Share the selected item
Dropbox
External storage
A filter is active. The matchlist shown, is filtered
Add the selected match to a round
Load preset filter-settings
Make this Bow-Setup or Arrowset the default to use from now on.
Create or scan a QR tag
Start the �Sjef’s Arrow Selector’ function with input the selected match
Unlink the selected match from its round
This match is linked to a round
This Bow-Setup or Arrowset is the default set which is being used when
creating matches, Sight-Settings, etc.
T ABLE 25 M ENU I CONS
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8 Contents
Table of Contents
1
2
3
Introduction.................................................................................................................. 2
1.1
Archery; a game of statistics! .............................................................................. 4
1.2
About the author .................................................................................................. 6
Installation .................................................................................................................... 7
2.1
Hardware required ............................................................................................... 9
2.2
Lite vs Premium .................................................................................................. 10
Overview ..................................................................................................................... 12
3.1
Archer .................................................................................................................. 14
3.2
Setup ................................................................................................................... 16
3.2.1
Bow .............................................................................................................. 16
3.2.2
Sight ............................................................................................................. 17
3.2.3
Bow-Setup ................................................................................................... 20
3.2.4
Quiver/Arrow-set ........................................................................................ 23
3.3
Record ................................................................................................................. 27
3.3.1
Round .......................................................................................................... 27
3.3.2
Match .......................................................................................................... 31
3.3.3
Record a Match ........................................................................................... 38
3.3.4
SightSettings................................................................................................ 49
3.3.5
Timer............................................................................................................ 49
3.4
Analyze ................................................................................................................ 50
3.4.1
Multi-View and GroupView ........................................................................ 50
3.4.2
Graphs ......................................................................................................... 50
3.4.3
Sjef’s Arrow Selector (SAS) ......................................................................... 50
3.4.4
What is a Filter? .......................................................................................... 52
3.5
Settings and Options .......................................................................................... 56
3.5.1
Match Input................................................................................................. 56
3.5.2
Scorecard..................................................................................................... 57
3.5.3
Analysis & Advice ........................................................................................ 57
3.5.4
Database...................................................................................................... 58
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100
4
5
3.5.5
Artemis User Manual
Timer............................................................................................................ 65
3.5.6
Colors ........................................................................................................... 65
3.5.7
Experimental ............................................................................................... 65
3.5.8
Info ............................................................................................................... 66
Tips and Tricks ............................................................................................................ 67
4.1
Shooting order .................................................................................................... 68
4.2
Dare-2-Dream ..................................................................................................... 70
4.3
Form Changes ..................................................................................................... 72
4.4
Arrow Tuning ...................................................................................................... 74
4.5
Tuning ................................................................................................................. 76
Technical Details ........................................................................................................ 81
5.1
Sight Adjustments............................................................................................... 82
5.2
The database ...................................................................................................... 87
5.3
Coordinate Reference Systems.......................................................................... 89
5.3.1
Why?............................................................................................................ 89
5.3.2
How does this work? .................................................................................. 90
5.3.3
Relative arrow diameter ............................................................................. 93
6
Quick start .................................................................................................................. 94
7
Iconography ................................................................................................................ 97
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Artemis User Manual
List of Figures
FIGURE 1PGA STATISTICS WEBSITE
4
FIGURE 2STATE-OF-ART PLOTTING OF ARROWS
5
FIGURE 3 SCAN TO INSTALL ARTEMIS
7
FIGURE 4 MAIN MENU
12
FIGURE 6 TAB: ARCHER
14
FIGURE 7 NEW FORM-CHANGE
15
FIGURE 8 TAB: SETUP
16
FIGURE 9 NEW BOW
17
FIGURE 10NEW SIGHT
18
FIGURE 11 SHIBUYA WEBSITE SPECIFIES THE ELEVATION AND WINDAGE RATES IN INCH/ REVOLUTION
19
FIGURE 12NEW BOW-SETUP
20
FIGURE 13 QUIVER OR ARROWSET LIST
24
FIGURE 14 ARROW LIST
26
FIGURE 15 NEW QUIVER / ARROWSET
25
FIGURE 16 TAB: RECORD
27
FIGURE 17 MATCH LIST
33
FIGURE 18 WORLD ARCHERY 1440 ROUND FOR MEN
37
FIGURE 19 INPUT SCREEN LAYOUT
38
FIGURE 20 SCORE CARD
43
FIGURE 21 GROUP VIEW
45
FIGURE 22 PERFECT SHOT ARROWS GROUP TO THE LEFT
82
FIGURE 23 SIGHT PICTURE
82
FIGURE 24 SIGHT ADJUSTMENT
83
FIGURE 25 SIGHT ADJUSTMENT
83
FIGURE 26 COMPUTING RELATIVE SIGHT ADJUSTMENT
83
FIGURE 27 EXAMPLE OF DATABASE STRUCTURE
87
FIGURE 28 A SINGLE ARROWSET DEPICTED WITH DIFFERENT DIAMETERS?
93
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Artemis User Manual
List of Tables
TABLE 1 REQUESTED PERMISSIONS DURING INSTALLATION
TABLE 2 DIFFERENCE BETWEEN LITE AND PREMIUM VERSIONS
TABLE 3 MAIN SCREEN MENU
TABLE 4 FORM CHANGES MENU
TABLE 5 FORM CHANGES LONG-CLICK (CONTEXT) MENU
TABLE 6 (CONTEXT) MENU OF BOW-LIST
TABLE 7 (CONTEXT) MENU FOR SIGHT LIST
TABLE 8 CONTEXT MENU OF ARROWSET/QUIVER
TABLE 9 MENU OF ROUNDLIST
TABLE 10 LONG PRESS MENU OF ROUND LIST
TABLE 11 SUPPORTED ROUNDS
TABLE 12 MENU FOR MATCH-LIST
TABLE 13 LONG PRESS MENU FOR MATCH-LIST
TABLE 14 SUPPORTED TARGETFACES
TABLE 15 MENU OF MATCH-INPUT GROUP TAB
TABLE 16 MENU OF MATCH-INPUT ARROW TAB
TABLE 17 MATCH INPUT OPTIONS
TABLE 18 SCORECARD OPTIONS
TABLE 19 ANALYSIS & ADVICE OPTIONS
TABLE 20 DATABASE OPTIONS
TABLE 21 TIMER OPTIONS
TABLE 22 INFO OPTIONS
TABLE 23 TILES AND ICONS
TABLE 24 MENU ICONS
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103
7
11
12
14
14
16
18
24
27
28
31
33
34
37
45
46
57
57
58
59
65
66
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Artemis User Manual
Index
Rest Vertical Position В· 23
Scope Magnification В· 23
Stabiliser setup В· 23
String В· 23
Tiller В· 23
Top Cam Timing В· 23
Coordinate Reference Systems В· 81
A
Add 12 arrows В· 26
Advice В· 57
AMO Draw Length Standard В· 22
Analysis В· 57
Analyze В· 8, 12, 50
Android В· 9
Archer В· 8, 12, 14
Archers Skill Level В· 44
Arrow Advice В· 47
Arrow Advisor В· 47
Arrow Identification В· 42
arrow selection В· 42
Arrows В· 26, 39, 45
Arrow-set В· 24
Diameter В· 25
Manufacturer В· 25
Name В· 25
Point-weight В· 25
Shaft-length В· 25
Spine В· 25
Type В· 25
ArtemisPremium В· 10
ArtemisProStaff В· 10
D
Dare2Dream В· 64
database В· 79
Database В· 57
default В· 34
destroyed В· 26
diameter В· 85
Dropbox В· 7, 58
E
Experimental В· 59
F
Filter В· 34, 52
Filter-item
Arrowset В· 53
Date В· 53
Distance В· 53
Form-change В· 53
Match В· 53
Setup В· 53
Shot-Order В· 54
Shot-Rating В· 54
Shot-Timing В· 54
Volume В· 54
Weather В· 53
Form Changes В· 14, 66
B
BarCode В· 37
Bow В· 16
Bow-Setup В· 20
Bow В· 21
Name В· 21
Sight В· 21
C
Cams В· 17
Cloud В· 58
Compound Bow-setup
Braceheight В· 23
Drawlength В· 23
Drawweight В· 23
General Notes В· 23
LetOffweight В· 23
Nocking point В· 23
Peep-Nock Distance В· 23
Peep-Scope distance В· 23
Rest Horizontal Position В· 23
Rest Stiffness В· 23
Rest Type В· 23
G
Golf В· 4
Google Play В· 7
Graphs В· 50
Group В· 39, 44
GroupView В· 50
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Artemis User Manual
H
Q
Handle В· 17
QR tag В· 37
Quick start В· 86
Quick Start В· 8
Quiver В· 24
I
Ice Cream Sandwich В· 7, 9
Info В· 59
Input В· 39
input-pointer В· 39, 41
Installation В· 7
Interaction В· 41
iOS В· 8
R
Record В· 8, 12, 27, 38
Recurve В· 21
Recurve Bow-setup
Braceheight В· 21
Button centershot В· 22
Button setting В· 22
Button spring В· 22
Drawlength В· 22
Drawweight В· 21
Eye-pin distance В· 21
General Notes В· 22
Nocking point В· 22
Stabiliser setup В· 22
String В· 22
Tiller В· 22
Round В· 27
L
landscape В· 9
Limbs В· 17
Local В· 58
M
Match В· 32
MatchList В· 33
Multi-View В· 50
S
N
SAS В· 50
score cell В· 40
scorecard В· 40
Scorecard В· 39, 43, 56
scoring value В· 41
select В· 41
Settings В· 55
Setup В· 8, 12, 16
Share В· 37
Sharing В· 7, 58
shooting form В· 14
Shooting order В· 62
Shot Details В· 42
shot rating В· 42
Shot Rating В· 42
Sight В· 17
Elevation В· 18
Left/Right clicks В· 18
Left/Right rate В· 18
Name В· 18
Up/Down clicks В· 18
Up/Down rate В· 18
Windage В· 18
sight adjustment В· 46
Sight Adjustments В· 76
sight advice В· 44
Name В· 17
normal distribution В· 83
Notes В· 17
O
Options В· 55
P
Permissions
BILLING В· 7
BLUETOOTH В· 7
BLUETOOTH_ADMIN В· 7
GALLERY_PROVIDER В· 7
INTERNET В· 7
NETWORK_STATE В· 7
VIBRATE В· 7
WAKE_LOCK В· 7
WRITE_EXTERNAL_STORAGE В· 7
Premium В· 8
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Artemis User Manual
Sight Advice В· 45
SightSettings В· 48
stopwatch В· 42
Stopwatch В· 42
Tuning В· 70
Type В· 17
T
un-usable В· 26
Upgrading В· 10
U
Team Netherlands В· 2, 6
Timer В· 48, 59
timing В· 42
Tips В· 61
trend В· 44, 47
Tricks В· 61
W
workflow В· 38
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106
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