How to create a mesh of distances between neibouring points?

Hi fella's!

I am trying to use meshgrid() to create a grid (matlab surf figure). Let's say I have 6 points on xy plane. A(0,0) B(1,0) C(2,0) D(0,1) E(1,1) F(2,1) I want to create a meshgrid of vertical distances between two adjacent points. Something like this figure : If you can help with with these 6 points, I should find my way to the end. The result for these points, will be a grid with same color(why? because these points are equally located in the neighborhood of each other)

Thanks!!