Geometry Transformations
#include “StTpcDb/StTpcDb.h”
#include “StCoordinates.hh”
StTpcCoordinateTransform transformer (gStTpcDb); //constructor needs StTpcDb
StTpcPadCoordinate raw(12,4,4,312); // sector 12, row 4, pad 4, bucket 312
StTpcLocalCoordinate local;