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Find the axis of symmetry in a point cloud

I have some dataset which describes a spherical cloud of points in 4D space. Actually, the coordinates of the points are the coefficients of unit quaternions, so you get the idea on what the data is ...
noncom's user avatar
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4 votes
2 answers
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How can I efficiently determine which side of a line segment is internal to the polygon?

As part of a larger analysis I have a need to break a polygon into it's individual line segments and mark which side is "inside" of the polygon. If your curious this is going to be fed into a big ...
Kevin Nuckolls's user avatar