SDK & Switching Between Scanners

[the_researcher]

Hello there, it's me again with a new question regarding the SDK

We have two projectors and I'm writing a little application that sends vector data to be written in both of them. Now I need to send different images to each projector at the same time.

I tried:

* changing "SetWorkingScanners" between 1 and 2 before sending point and frame information, but it doesn't work.
* setting two projection zones (Read/WriteProejctionZone) and setting the 'scanner' field to 1 and 2 respectively, and later set the "preferred projection zone" inside the FRAMESTRUCTEX structure. Doesn't seem to do much either.
* playing with the DisplayProjectionZones() function, but it's undocumented, so I don't know what it does or how to use it properly.

Here's an idea of what I'm doing

<pre> 
//prepare the projection zones 
PROJECTIONZONE * pz = new PROJECTIONZONE;
for(int i=0, pZone=1; i &lt; nProjectors; i++, pZone++)
{
	 ReadProjectionZone(pZone, pz); 
	pz-&gt;Scanner = 1&lt;&lt;i; //1, 2, 4, 8, etc...
	WriteProjectionZone(pZone, pz);
}
delete pz;

//this would be the displaying part
SetWorkingScanners (scannerNumber); //where scannerNumber is 1 or 2
//...
//add point information into a PTSRUCT structure array
//..
FRAMESTRUCTEX frame;
frame.PreferredProjectionZone = pzNumber; //here I set the projection zone number
WriteFrameStructEx(frameNumber, &frame);
WriteFrameEx(&frame,  points);

DisplayFrame(frameNumber);
DisplayUpdateEx(1);
</pre>

Any help would be greatly appreciated.

Thanks in advance!

 

[the_researcher]

[SOLVED] SDK & Switching Between Scanners

Adding a SetWorkingTracks after each SetWorkingScanners and before any "Display..." commands seems do to the trick
Something like...

<pre>
SetWorkingTracks(scannerNumber);
SetWorkingTracks(1);
DisplayProjectionZones(pzNumber);
DisplayUpdateEx(1);
</pre>

Then write all the point data and display as usual.