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I figured it out by using a work around that had been posted for old versions. Rather than write a script I manually changed the identification when the kinects are launched in the command line window. In the code, a modification exists which will call the first device on a bus instead of the first device overall. For example:

roslaunch openni_launch openni.launch camera:=kinect_1 device_id:=1@0 roslaunch openni_launch openni.launch camera:=kinect_2 device_id:=2@0

Then simply use the normal functions but with kinect_1 instead of camera.

For example:

rosrun image_view image_view image:=/kinect_1/rgb/image_color rosrun image_view disparity_view image:=/kinect_1/depth/disparity rosrun image_view image_view image:=/kinect_1/depth/image