plot contour for x y z without defining a function
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I have some points with x y coordinates and value of stress of them saving in a matrix like z. how can i plot contour for these data? for example:
x=1 y=3 z=10
x=2.4 y=3.7 z=12
x=3.9 y=2.7 z=19
...
i cant write z as a function of x y because my equations are so complex and i just calculate results and want to contour for the results.
Thank You
回答（1 个）
Walter Roberson
2012-10-27
0 个投票
See griddata() and see TriScatteredInterp()
The key is to use the existing data to interpolate a grid and then contour the grid.
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