PR-Tf1 Perspective Vanishing Point of P1,P2,P3
Given three collinear points in a fixed order, P1, P2 and P3.
These points determine a perspective scale from which the vanishing point V can be derived.
PR-Tf1 is the transformation that maps the ordered triple (P1,P2,P3) to the vanishing point V.
Construction
The following figure illustrates the construction.
Properties
- V is the Harmonic Conjugate of P2 wrt (P1,P3)
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