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Point projection via matrices
Autore:
Jonathan Holland
Argomento:
Matrici
The 3x3 matrix Proj = eye(3) - [P_1;P_2;1][u_1 u_2 0]/dot(u,P) gives the point projection from projection point P=(P_1,P_2) onto the line through the origin with normal u=[u_1;u_2], in homogeneous coordinates.
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