I would like to know why surfaces or patch objects that block light sources do not cast shadows on other surfaces or patches.
MATLAB: Don’t surfaces or patch objects that block light sources cast shadows on other surfaces or patches
blockingcastlightMATLABobjectsshadowshadowssources
Related Solutions
Set the caxis limits:
A simple working example:
>> map = [1,0,0;1,0.5,0;1,1,0]; % red;orange;yellow
>> colormap(map)>> patch([0,1,2,0],[0,2,0,0],3) % 3 -> should be yellow
>> saveas(gcf,'Before.png')>> caxis([1,3]) % set the color limits
>> saveas(gcf,'After.png')Before:
After:
The ability to fill a patch object with a pattern or texture mapping using the FILL function is not available in MATLAB R2020b.
To work around this issue, you can create a surface object using the SURF function rather than a PATCH object and apply a texturemap to the surface object. An example demonstrating how to do this using the surface CData and FaceColor properties is given in the following article:
Also, you may use the files at the following link at the MATLAB Central file exchange:
Note that MathWorks does not guarantee or warrant the use or content of these submissions. Any questions, issues, or complaints should be directed to the contributing author.
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