Calculate normal (directional) from polygons?
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Is it possible to turn a polygon shape into a surface in Matlab to find it's normal direction? The input matrix I have for each polygon is in the following format:
[column 1: x-coordinates; column 2: y-coordinates; column3: z-coordinates]
The coordinates are already sorted in sequential order, so it's normal will go in one direction or the other. The polygons are all 2-dimensional, but can be rotated in any direction (which is what is sought).
Matlab version R2007a is being used, if that makes any difference in the response to this problem.
Thanks!
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