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facetNormals mPower Reference Home

facetNormals→False is an option for convexHullFormat in 3D. If facetNormals→True , then a list of 4-dimensional vectors, {x, y, z, m}, for each facet of the convex hull. {x,y,z} is an outward pointing unit normal vector, and m is an offset giving the distance from the origin. from the origin.


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The following figures illustrate the concepts. Click on any of the figures to see a larger view; the example notebook illustrates how to generate these figures.
A set of points
Convex hull, with vertices highlighted.
Convex hull
Convex hull with facet centroids highlighted
Convex hull with facet normals attached to facet centroids Logo