Addicted to maps

I think I understand addicts better now. They waste their life in hopes of getting the thrill that the roll of the dice, the slurp of liquid, or the puff of the joint, will get them.
For me it is the joy of figuring something out about my program. It makes me feel good about myself. When I look for a job, I don’t feel good about myself. Instead it fills me with self loathing. It needs to be done for me to get on with my life. But with programming I get satisfaction now.
Today I discovered a solution to a problem I’ve been pondering.
My map program looks fairly good, but I’m not sure if it is correct. I can generate the surface of a planet, but is the shading looking anything accurate? Do real mountains look that way?
I’ve been able to get real-world data in, but only incredibly detailed information on a small area. It comes out looking quite nice. But my program usually thinks in terms of entire planets. And I’ve noticed that the mountains don’t have shading, because relatively, they are too shallow. If only I could compare them to what the real world would show in my program.
But today I discovered a way to get real world data into my program. There are web services out there that will return the elevation if they are given a coordinate. I just need to use that appropriately, and I will be able to get the real world displayed.
I wonder how it will look?