Search found 31 matches

by litch09
Tue Jan 12, 2010 7:52 pm
Forum: Tracking Tools
Topic: Help on rotation using quaternions or YPR
Replies: 11
Views: 6856

Re: Help on rotation using quaternions or YPR

<t>Thank you for you post Doug. Can you please let us know what rotation sequence this applies to? The calculations I would have used to go from yaw, pitch, roll to the direction cosine matrix (DCM) would have been - <br/> <br/> A = a*pi/180; % a = azmiuth in degrees (yaw?)<br/> E = e*pi/180; % e = ...
by litch09
Mon Nov 16, 2009 5:07 pm
Forum: Tracking Tools
Topic: Rotation order in Tracking Tools
Replies: 4
Views: 3423

Re: Rotation order in Tracking Tools

I would also like to get some more information on the rotation sequence. Is there any documentation available?

I have been trying to match raw marker data up with the rotated body data, but can't seem to get the sequence correct (or perhaps my calculations are not correct!).
by litch09
Wed Oct 07, 2009 9:35 pm
Forum: Tracking Tools
Topic: Tracking tools - Matlab and Labview
Replies: 33
Views: 37494

Re: Tracking tools - Matlab

<t>Thanks guys. This is now working well in Matlab, and I have been able to make good live plots of position and orientation of the trackables and also the 3D marker positions. The only problem I am having is using the TT_IsTrackableTracked function which seems to return a library pointer... i think...
by litch09
Tue Oct 06, 2009 5:41 pm
Forum: Tracking Tools
Topic: Tracking tools - Matlab and Labview
Replies: 33
Views: 37494

Re: Tracking tools - Matlab

<r>I have put the Labview files up at the following links -<br/> <br/> First the VI library in case you haven't been able to build it using the instructions in the earlier post. <br/> <br/> <URL url="http://www.easy-share.com/1908042120/NPTrackingTools.zip"><LINK_TEXT text="http://www.easy-share.com...
by litch09
Tue Oct 06, 2009 5:03 pm
Forum: Tracking Tools
Topic: Tracking tools - Matlab and Labview
Replies: 33
Views: 37494

Re: Tracking tools - Matlab

<t>Thanks Doug. I will wait for Beta 4 to be released over the coming days.<br/> <br/> Ory - It is relatively simple to build a VI library in Labview from the DLL. To do this, just go to Tools --> Import --> Shared Library (.dll) --> Create VI's for shared library --> Enter the location of DLL and H...
by litch09
Sun Oct 04, 2009 7:12 pm
Forum: Tracking Tools
Topic: Tracking tools - Matlab and Labview
Replies: 33
Views: 37494

Tracking tools - Matlab and Labview

<t>Hi, <br/> <br/> I have been trying to use the Tracking Tools API through Matlab.<br/> <br/> When I load the library (using the 'loadlibrary' function in Matlab) I am getting the following messages -<br/> <br/> Warning: The function 'TT_CameraMarkerCount' was not found in the library <br/> Warning...
by litch09
Thu Oct 01, 2009 2:02 pm
Forum: Tracking Tools
Topic: Markers in a tracked rigid body
Replies: 6
Views: 3266

Re: Markers in a tracked rigid body

Yes, that does sound like a good way of doing this. I will give it a go.

Cheers
by litch09
Wed Sep 30, 2009 3:39 pm
Forum: Tracking Tools
Topic: Markers in a tracked rigid body
Replies: 6
Views: 3266

Re: Markers in a tracked rigid body

<t>This is certainly an important feature which would help if implemented in future versions. What is the best way to do this calculation?<br/> <br/> Do you have to calculate the distance of each marker (obtained from TT_FrameMarkerX-Z) from the the other markers and determine which markers best mat...
by litch09
Sun Aug 02, 2009 10:56 pm
Forum: OptiTrack Data Streaming
Topic: Streaming Question
Replies: 19
Views: 14134

Re: Streaming Question

<t>Hi Morgan, <br/> <br/> I would certainly be interested in a .Net Assembly or Active X control wrapper to make it easier to access streaming data via Labview or Matlab (particularly using Tracking Tools).<br/> <br/> I have written Labview VI's in the past using the Optitrack SDK to communicate wit...
by litch09
Sun Apr 26, 2009 3:01 pm
Forum: OptiTrack Data Streaming
Topic: streaming question
Replies: 2
Views: 1565

Re: streaming question

Thanks Vincent. This answers my question perfectly!