[Rock-dev] CameraWidget

Chris Mueller christoph.mueller at dfki.de
Fri Nov 16 12:07:15 CET 2012


Hi,

i have currently some problems with the camera widget used through 
scripting via vizkit.

1) It always shows a black image through (tested on 640x320 and 320x240 
configured camera tasks)

camera = TaskContext.get 'task'
Vizkit.display camera.frame

2) if i pickup the corresponding data with:

19 frame_reader = camera.frame.reader :type => :buffer, :size => 10
20
21 while true
22   sample = frame_reader.read
23
24   if sample
25     puts "#{sample.time}, #{sample.image.size}"
26 end
27 end

Output:
2012-11-16 12:02:15 +0100, 24290
2012-11-16 12:02:15 +0100, 24290
2012-11-16 12:02:15 +0100, 24290
2012-11-16 12:02:15 +0100, 24290
2012-11-16 12:02:15 +0100, 24290
...

Therefore the image data should be received successfully to my local 
machine.

3) It worked 2-3 weeks ago where the camera widget has been popped up 
two times sequencely at start up. One has shown the correct image.
The other one has been closed immediately.

Chris



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