Plane3D Class Reference

List of all members.

Public Member Functions
	Plane3D (const Point3D &normal, const Point3D &pt)
	Plane3D (const Point3D &p1, const Point3D &p2, const Point3D &p3)
double	evaluate (const Point3D &p) const
double	operator() (const Point3D &p) const
void	makePositive (const Point3D &p)
Public Attributes
Point3D	normal
double	distance

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Detailed Description

This class represents a Plane in 3D.

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Constructor & Destructor Documentation

Plane3D::Plane3D (  const Point3D &  normal, const Point3D &  pt )

This constructor generates a plane with the specified normal, passing through the point pt.

Plane3D::Plane3D (  const Point3D &  p1, const Point3D &  p2, const Point3D &  p3 )

This constructor generates a plane that contains the triangle specified by the three vertices.

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Member Function Documentation

double Plane3D::evaluate (  const Point3D &  p  )  const

This method evalues the plane equation at the specified point, returning p.dot(normal)+distance.

void Plane3D::makePositive (  const Point3D &  p  )

This method orients the plane so that the value of the plane function at p is non-negative.

double Plane3D::operator() (  const Point3D &  p  )  const

This method evalues the plane equation at the specified point, returning p.dot(normal)+distance.

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Member Data Documentation

double Plane3D::distance

(Minus) the normal distance of the plane from the origin

Point3D Plane3D::normal

The normal of the plane

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