Plot in 3D isolines from 2D image

Hello,

I'd like to ask if someone could help me to undersand how can I plot isolines of a portion of map (terrain with differen elevation) in 3D plot in matlab? I have 2D coloured map with different isolines, each represents different elevation. I'd like to obtain 3D map

Answer 1

[Image Analyst]

Is surfc what you want? Or one of the numerous contour functions?

Answer 2

[DGM]

Or perhaps

[x y z] = peaks(50);

hs = surf(x,y,z); hold on
hs.EdgeAlpha = 0.5;

[~,hc] = contour3(x,y,z);
hc.LineWidth = 5;

Note that this is a scenario where two objects are dependent on the same colormap. Utilizing different colormaps for both the surf and contour requires extra work.