How to draw a surface starting from a 3 column vector X, Y, Z with no regular grid on X, Y ?

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Frederic Cleva
Frederic Cleva 2021-11-8
编辑： Chris 2021-11-8
Dear matlab users,
I have a file out from a fiit element software (ANSYS) which simulats the static distorsion of a metallic plate due to its own weight.
the file gives 3 columns, X, Y, Z
The coordinates X and Y scan the plate surface according to the mesh generated by the ANSYS software. There is no specific structure which would allow to use meshgrid function or so. X and Y are set arbitrarilly.
How is it possible to plot the surface Z associated to the coordinates X,Y?
How is it possible to get an interpolation of such a surface on a regular grid so I can make some analysis with standard tools?
Many thanks for your comments
Cheers
Frederic

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Frederic Cleva
Frederic Cleva 2021-11-8
Hum, it seems F = scatteredInterpolant(Y,Z,dX) makes the job...
Sorry for the trouble
Cheers,
Frederic

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Chris
Chris 2021-11-8
编辑：Chris 2021-11-8
Another useful function is griddata

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