Point belongs to segment?

Anonymous's picture
Anonymous (not verified)
Fri, 12/06/2002 - 17:24
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Other usage issues

Hello!

Is there a standard way to determine if point belongs to line segment bounded by 2 points?

Currently I project point to segment, calculate distance from initial point to projection point and compare it with Precision::Confusion().

Stephane Routelous's picture
Stephane Routelous
Thu, 12/12/2002 - 07:31

Let's say your segment is between P1 and P2, and P is your point.

compute
gp_Vec V1(P,P1);
gp_Vec V2(P,P2);

Standard_Boolean PBelongToSeg = V1.IsParallel(V2,Precision::Angular());

HTH
compute the 2 gp_Vec from