How to plot contour when the function has no relation with the coordinates.?

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obaid-ur-rehman 2018-1-22

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编辑： obaid-ur-rehman 2018-1-25

I have 3 matrices. x(n,1), y(n,1) and z(n,1). I want to plot the contour of 'z' in the 'x-y' coordinate. Can anyone help? I can plot it in Origin easily but I need to plot in Matlab.

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Answer 1

KSSV 2018-1-22

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https://ww2.mathworks.cn/matlabcentral/answers/378329-how-to-plot-contour-when-the-function-has-no-relation-with-the-coordinates#answer_301171

在 MATLAB Online 中打开

N = 50 ;
x = rand(N,1) ;
y = rand(N,1) ;
z = rand(N,1) ;
dt = delaunayTriangulation(x,y) ;
tri = dt.ConnectivityList ;
coor = dt.Points ;
trisurf(tri,x,y,z,'EdgeColor','none');
view(2)