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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Dear IGSTK users,<br>
<br>
I come to you following my difficulties to understand observers and events in IGSTK.<br>
<br>
Basically, what I want to do, is simply print the position of a tracker every time its position is updated.
<br>
<br>
So I think I have to do something like:<br>
<br>
myClassXY{<br>
<br>
//in the constructor:<br>
ObserverType myObs = ObserverType::New();<br>
PolarisTrackerTool::Pointer myTrackerTool = PolarisTrackerTool::New();<br>
<br>
myObs->SetCallbackFnct(this,&myCallbackMethod);<br>
myTrackerTool->AddObserver(igstk::TrackerToolTransformUpdateEvent(), myObs);<br>
<br>
<br>
//myCallbackMethod definition<br>
void myCallbackMethod{<br>
//print the position of myTrackerTool<br>
}<br>
<br>
}<br>
<br>
But unfortunately, I am completely unsuccessful to implement it correctly. For example, I do not get how to create ObserverType.<br>
More generally, I would like to be able to link any igstkEvent to any personal callback method.<br>
<br>
Could anyone help me with this issue? I'm sure it is a basic thing, but I just can't figure out how to implement it...<br>
<br>
Thanks a lot for your help,<br>
Best,<br>
Steve<br>
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