custom alpha-data in surface plot

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Björn
Björn on 18 Sep 2013
Commented: Björn on 4 Oct 2013
I am plotting multiple surfaces in one figure. Now I want to make the areas of the plot close to zero a transparency-gradient. For example
if z(i,j) >= 0 && z(i,j) <= 0.1
transparancy(i,j) = 1-z(i,j)/0.1;
else
transparancy(i,j) = 0;
end
I tried using the 'alpha' function and the colormap method but didn't succeed. Can anybody help me on my way?

Answers (1)

Walter Roberson
Walter Roberson on 18 Sep 2013
Do not use the alpha function: use the AlphaData property of the surface object.
surf(z, 'AlphaData', transparancy)
  1 Comment
Björn
Björn on 4 Oct 2013
I tried this but it doesn't change anything. Do you have another suggestion?

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