Create 4D surface plot from x, y, z and c column vectors

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Emmanouil Barmpounakis 2017-1-26

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https://ww2.mathworks.cn/matlabcentral/answers/322086-create-4d-surface-plot-from-x-y-z-and-c-column-vectors

评论： Walter Roberson 2022-9-12

I have 4 columns in a table named A. The 3 columns x,y,z are the initial conditions and c is the result of a specific function I use c = f(x,y,z). I want to show the result c[i] for every case x[i],y[i],z[i] as a surface where the colour will stand for how high/low the value of c is.

I use the code below:

xx = A.x
yy = A.y
zz = A.z
cc = A.c

but the following error appears:

Z must be a matrix, not a scalar or vector.

Any ideas?

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采纳的回答

Walter Roberson 2017-1-26

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https://ww2.mathworks.cn/matlabcentral/answers/322086-create-4d-surface-plot-from-x-y-z-and-c-column-vectors#answer_252144

scatteredInterpolant or TriScatteredInterp. Then evaluate at a regular grid. Then you can isosurface() or slice()

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Farid Khazaeli Moghadam 2022-9-12

Works perfectly. Thanks.

Walter Roberson 2022-9-12

Note that the UserData part is only there for potential future code extension with customizing datatips; if you are not planning to customize the datatips then you can leave out the 'UserData' part.

Also, the code to get a color from the color map to pass to FaceColor, uses interpolation of the current level compared to the potential range of the levels. If your levels are dense or if you choose the levels non-linearly, then you could end up with two surfaces the same color. The code does not use "next color" each time -- does not use the standard color order

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