accessing skeletal tracker data
I had a problem in accessing and processing of the data given by Kinect in Openni package. The problem is I am piping the Kinect data to a text file using
rostopic echo /tf >> data.txt
then I am simultaneously trying to access the same data file in another program, but once i run this program the previous command stops writing into the data file. Can anyone please tell how do I make the computer do both the tasks simultaneously?