3D plot from 3D matrix

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Hans123 2020-6-18

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https://ww2.mathworks.cn/matlabcentral/answers/550800-3d-plot-from-3d-matrix

回答： Walter Roberson 2020-6-18

I read through the forums to help answer my questions before submitting a question. Eventhough there were similar questions asked, I do not believe that my question was answered.

I have a 200x200x600 matrix that needs to be plotted. The matrix contains potential data in a grid cube, The plot is basically a 3D x,y,z grid that contains potential data at those each (x,y,z) point. My question is how would one.

Surf requires (X,Y,Z) co-ordinates and Patch does not seem to be fitting. Any help appreciated!

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Adam Danz 2020-6-18

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I see what you mean. So, if I understand correctly, you want to plot a solid object. How will you see beyond its surface? Since it's a rectangle, how will you see point (50,50,50) for example?

Here's a way to plot a 3D scatter plot but I don't think this is what you're looking for.

data = reshape(1:175, 5,5,7);  % Fake data,  5x5x7
[X,Y,Z] = meshgrid(1:size(data,1), 1:size(data,2),1:size(data,3)); 
scatter3(X(:),Y(:),Z(:), 80, data(:),'filled')