What is the correct way to get the convex hull

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user6567
user6567 2015-10-13
回答： Walter Roberson 2015-10-13
I have a 3D array of data which shows one concave figure. I want to find all points which don't belong to the figure, but belong to the convex hull. How can I do it?
I know I should use the convhull function, but I'm not sure how (the input is an array of size m by n, where m is the number of points and m is the number of dimensions, so 3 in my case). Also, I'm not sure how to process the output of this function - it has the same size as the input matrix.
I'd appreciate any examples.

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Walter Roberson
Walter Roberson 2015-10-13

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