georegression.metric.alg

Class DistancePointTriangle3D_F32

java.lang.Object

georegression.metric.alg.DistancePointTriangle3D_F32

public class DistancePointTriangle3D_F32
extends java.lang.Object

Computes the closest point and distance between a triangle in 3D and the closest point on a triangle.

David Eberly, "Distance Between Point and Triangle in 3D", Geometric Tools, LLC, 1999

Constructor Summary

Constructors

Constructor and Description
DistancePointTriangle3D_F32()

Method Summary

Modifier and Type	Method and Description
void	closestPoint(Point3D_F32 P, Point3D_F32 closestPt) Find the closest point on the triangle to P.
void	setTriangle(Point3D_F32 p0, Point3D_F32 p1, Point3D_F32 p2)
float	sign(Point3D_F32 P) Returns the signed of the vector.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DistancePointTriangle3D_F32

public DistancePointTriangle3D_F32()

Method Detail

setTriangle

public void setTriangle(Point3D_F32 p0,
                        Point3D_F32 p1,
                        Point3D_F32 p2)

closestPoint

public void closestPoint(Point3D_F32 P,
                         Point3D_F32 closestPt)

Find the closest point on the triangle to P.

Parameters:

P - Input. The point for which the closest point is to be found.

closestPt - Output. The found closest point.

sign

public float sign(Point3D_F32 P)

Returns the signed of the vector. If its "in front" it will be positive and negative if "behind". In front is defined as being on the same side as the cross product of p2-p0 and p1-p0.