MATLAB offset surface

I want 开发者_开发知识库to offset surfaces which have grid points. I have some grid points for my goemetrical problem I can plot it with matlab but I can not offset surfaces.

Thanks for your interest

Aliis

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I don't fully understand your question, but if you want arbitrary 3D plots not on the grid, you can try delaunay and trisurf.

N = 300;
X = randn(N,1);
Y = randn(N,1);
Z = sin(X+Y.^2);
tri = delaunay(X,Y);
trisurf(tri,X,Y,Z);