Rotates a point distribution (defined by ifirst,ilast,istride) about a point xcen,ycen,zcen. phi (in degrees) is the angle of rotation of the XY plane around the Z-axis, where positive phi is measured from the positive x-axis toward the positive y-axis. theta (in degrees) is the angle of rotation toward the negative z-axis. The (no) copy options are as described in the rotateln command.
rotatept /ifirst,ilast,istride/ [no] copy / xcen,ycen,zcen/theta/phi