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Index › Programming Questions & Help › Syntax Questions › Processing+Fiducials+Rotation
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Processing+Fiducials+Rotation (Read 482 times)
wunner
Processing+Fiducials+Rotation
Jul 9th, 2009, 10:02am  
Hello,

we are working with fiducials(react_tevision)marker and want to know, how ROTATION of a marker is recognized by processing!
For example, we got a sketch with boids, which number of individuals should be increased by ROTATING the marker (the fiducial).
Do we have to work with the angle?

Anybody knows and can help us by posting sketches concerning this prob.?

GRACIAS
Cheesy
wunner
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PhiLho 
Re: Processing+Fiducials+Rotation
Reply #1 - Jul 10th, 2009, 4:05am  
I am not sure to understand the full request (how rotating a symbol can increase a number of elements?).
But well, I can answer 'yes' to your question: "Do we have to work with the angle?"
In Processing, rotation (see rotate()) is done at low level (unless you use a PShape): you have to use pushMatrix (to save current state), translate, rotate, translate to center the mark, and popMatrix...
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