Partial transparent surface plot

Question

Rafael Kübler 2017-3-9

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/328915-partial-transparent-surface-plot

编辑： Massimo Zanetti 2017-3-9

Hello together,

I'm trying to plot a surface where all points with a z value between -0.5 and 0.5 are 100% transperent. I've tried to make all these values to NaN (not a number). This works, so far, that the surface looks like expected, but i can not use the data cursor. When using the data cursor matlab crashes. Is there another way of makeing areas transparent or does anyone know, why matlab crashes?

Thank you for your help.

Rafael

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Answer 1

Massimo Zanetti 2017-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/328915-partial-transparent-surface-plot#answer_257982

编辑：Massimo Zanetti 2017-3-9

在 MATLAB Online 中打开

Play with Chart Surface Options: https://it.mathworks.com/help/matlab/ref/chartsurface-properties.html

You can set AlphaData to 0 where you don't want to see any colour. Here is an example hiding values of a trigonometric function between 0 and 1:

[X,Y] = meshgrid(1:0.5:10,1:20);
Z = sin(X) + cos(Y);
s = surf(X,Y,Z);
s.AlphaData = (Z<=0) | (Z>=1);
s.FaceColor = 'texturemap';
s.FaceAlpha = 'texturemap';

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Rafael Kübler 2017-3-9

编辑：Rafael Kübler 2017-3-9

Thank you. This somehow worked. But i'm using z-buffer as renderer and with this, it doesn't seem to make any difference in transperency. When using painters the surface looks like expected but i also get some ugly numbers all over the figure. That was the reason to choose z-buffer in the first place.

Massimo Zanetti 2017-3-9