How to get a smooth elevation topography data in matlab?

Hello, help~~~~ I'm new to Matlab. So the question may be simple for you guys, but it haunts me for one month.

I want to have Some kind of data (or a function I don't know how to call it), that when I type in any x-y coordination, it gives a elevation value.

It is like a contour, but smooth. It is the best to be a real-world data, but the artificial one is OK for me too.

Many Thanks!!!!!

Answer 1

[Image Analyst]

Try TriScatteredInterp(), or the newer griddedInterpolant class.