Immersive Visualization / IQ-Station Wiki
This site hosts information on virtual reality systems that are geared toward scientific visualization, and as such often toward VR on Linux-based systems. Thus, pages here cover various software (and sometimes hardware) technologies that enable virtual reality operation on Linux.
The original IQ-station effort was to create low-cost (for the time) VR systems making use of 3DTV displays to produce CAVE/Fishtank-style VR displays. That effort pre-dated the rise of the consumer HMD VR systems, however, the realm of midrange-cost large-fishtank systems is still important, and has transitioned from 3DTV-based systems to short-throw projectors.
PatriotWireless
Polhemus Patriot Wireless
Tracker Startup
Instructions differ somewhat for the single vs. dual receptor configurations. Each will be covered separately.
Single Receptor
- Determine TTY device name for base unit
- (for Keyspan, search dmesg output)
- (list files "/dev/tty*" -- if only one, that's probably it)
- Turn on base unit
- Turn on markers (switch to the left) numerically ascending order
- Arrange markers ~6" from receptor (such that axis pictures align)
- Test with Kermit
- % kermit -l /dev/tty<XX> -b 115200 -C"set flow-control none,set carrier-watch off,connect"
- Get signal strengh: @s/n
- Launch Markers for receptor #1: l1/n
- Verify launch of markers: ^u0/n
- for 3 markers, response should be
00u 00070007
- for 3 markers, response should be
(ie. one bit set per marker)
- if not all markers successfully launched, try turning the unlaunched markers off and then on in numerically ascending order and then go back to the launch step
- another thing to try is to do a soft-reset (
^Y/n
) and then relaunch - another thing to try is to move the markers closer to the receptor (but not too close -- they are too close if the signal strengh is reported as nearly zero)
- Now you are ready to try with
fastraktest
Dual Receptor
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Testing with FastrakTest
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