I added the ability to change the radial scaling, so I could change from orthographic to Lambert's equivalent, to equidistant, to stereographic. Then I changed the radius component so it was a variable, not a constant. The global shape was read out of a 2-D array addressed by latitude and longitude and holding the radius at each point. The starting point was a triaxial ellipsoid. Enter values for its long, short and intermediate axes and the array is populated with radii. 2/n
