Gazebo 1.9 Capture images at discrete intervals.

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Hi all,

I am trying to capture images of a moving robot arm simulated in Gazebo. I want to capture images only at some discrete intervals. Currently I am using 'libgazeborosopenni_kinect.so' camera plugin. But it is taking images continuously.

Please tell me if there is another method to implement cameras so that I will be able to take images only at some random discrete intervals.

Any help is greatly welcome.

Regards, Abhishek