Tracking with Marker ID plugin

[mjabon]

Is there any way to do it with serial?

[Jeff]

For example, if you only had one marker with ID 4 being tracked you would need to add ppt.dls four times to get marker 4. Trackers 1-3 would not have any data.

tracker1 = viz.add('vizppt.dls') 
tracker2 = viz.add('vizppt.dls') 
tracker3 = viz.add('vizppt.dls') 
tracker4 = viz.add('vizppt.dls')

Is it difficult for you to switch over to using VRPN?

[mjabon]

We cannot easily switch to VPRN as we have an entire library of files that all use serial and we would prefer to leave the code.

We have tried the following code:

    viz.tracker()                        # start tracking
    
    lowarmleft_ppt_1 = viz.add('vizppt.dls')
    #lowarmleft_ppt_1.command(5,'',5)
    lowarmright_ppt_3 = viz.add('vizppt.dls')
    #lowarmright_ppt_3.command(5,'',5)
    uparmleft_ppt_2 = viz.add('vizppt.dls')
    uparmleft_ppt_2.command(5,'',5)
    uparmright_ppt_4 = viz.add('vizppt.dls')
    uparmright_ppt_4.command(5,'',5)
    
    lowarmleft_ppt_1.reset()
    lowarmright_ppt_3.reset()
    uparmleft_ppt_2.reset()
    uparmright_ppt_4.reset()
   


newline = ''
            newline += str(lowarmleft_ppt_1.get()[:]) + ' ' + str(lowarmright_ppt_3.get()[:]) + ' ' +  str(uparmleft_ppt_2.get()[:]) + ' ' +  str(uparmright_ppt_4.get()[:]) + '\n'
            print newline

We get all zeros.

Any suggestions?

[Jeff]

It looks like the resets cause the values to be zero. What are the ID's of the markers used?

[mjabon]

We were using IDs 1-4.

If we do not reset the ppts how will they know when they are in the center of the room? Normally we have our subject stand at a certain line and hit reset. That should only make 1 line be zeros, not all of them, right?