Calculate whether a point is above or below a plane
in [Matlab]
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From: Jan Simon on 12 Jul 2010 14:59 Dear Ian, If you have 50k points, you can rotate the 3D coordinates such that the normal vektor of the plane is parallel e.g. to the Z-axis. Then a simple >= operation of the Z-component of the points is enough to decide if they are over or under the plane. Jan |