WorldViz PPT-E, Operating Instructions Manual, Page: 111 / 163

Configuration
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CONFIGURING VIZARD V R TOOLKIT
This section describes how to use with wand with Vizard VR Toolkit. This usage
described here bases the Vizard side connection on the viztracker utility. This is the
recommended method because it provides considerable functionality without any
required Vizard-side programming. To use the wand without viztracker, please see
“Advanced usage” further in next section of the manual.
Configure viztracker
Viztracker is a module in Vizard that abstracts the functionality of trackers and
various inputs sensors from the hardware implementations. To use viztracker, a
Vizard application needs to call the appropriate functions, which in turn will use your
stored viztracker configuration settings to activate the appropriate hardware devices.
Configuring viztracker is accomplished by running the viztracker_setup.py script
which should be included in your local installation of Vizard (you can expect to find
this here: C:\Program Files\WorldViz\Vizard4 [or Vizard30]\python\viztracker.py).
To properly configure viztracker for a PPT Wand, use the following settings:
 Display: any setting—does not affect Wand
 Tracker: set to WorldViz / PPT *
 Input: set to WorldViz / VRPN Wand * (any option for hands)
 Avatar : any setting—does not affect Wand
These are recommended settings; using these settings allow for all wand
configurations to be stored on PPT and be removed from the rendering application.
The data are transmitted from PPT thru VRPN to the Vizard application.
NOTE: If you set viztracker to connect to a right hand, then you need to have PPT
configured with marker ID set to 3. For the left hand, you set it to 2 instead.
Vizard and viztracker together
To test out your wand in a Vizard-based application that uses the viztracker
configuration that you created above, please run the script called “WandTester.py”
that can be found in your “WorldViz / PPTStudio / Vizard Examples” program files
folder.
When you run this program, its default view will be to center the tracked hand on the
screen. You can use the onscreen control buttons to swap the view to that of the PPT
tracker.