With Direct Graphics, there were a couple of routines that let you produce 3D visualizations with POLAR coordinates. http://www.harrisgeospati...RFACE_Procedure.html http://www.harrisgeospati...NTOUR_Procedure.html If are using Function Graphics (like http://www.harrisgeospati...m/docs/PLOT3D.html), you will likely need to covert the coordinates to cartesian.