Hello !

We recently mounted fingertip pressure sensor on one hand of our PR2, and we are able to get the pressure data (under ROS Groovy). We successfully used the viewfingertippressure GUI but we are wondering about calibrating data. The /pressure/ topic provides raw data, and on the GUI, there is a "Zero" check box that allow to provide a relative measure (and so a calibrated one).

The question is : how can we get this calibrated data to use in other nodes ? Is there a node that process raw data to calibrated data (i.e. sensor readings moved from a "Zero" offset) ? Or should we write a procedure to do that ?