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2016-05-10 17:58:04 -0600	asked a question	writing a subscriber with 2 arguments Hi, im new to ROS and PCL and i want to process the data provided by a xtion pro live using openni. my goal is to estimate a groundplane using a function void groundplane (CloudT::ConstPtr cloud_in, CloudT::Ptr cloud_out) { ...code... } So the function needs 2 arguments, a pointcloud cloud_in from the xtion and a pointcloud cloud_out that should be empty at the beginning. searching the web i think i need to use boost::bind, but i cant figure out how. help would be very much appreciated