Plane Class Reference

Holds a vector that represents the normal to the plane plus a float that corresponds to D in the plane equation Ax + By + Cz + D = 0 where (A,B,C) is the normal. More...

List of all members.

Public Member Functions
EMMA_EXPORT	Plane ()
	Default constructor.
EMMA_EXPORT	Plane (const Fusion::Vec3f &n, float D)
	Construct a plane given normal and distance from origin along normal.
EMMA_EXPORT	Plane (const Fusion::Vec3f &p0, const Fusion::Vec3f &p1, const Fusion::Vec3f &p2)
	Construct a plane given 3 points.
EMMA_EXPORT	Plane (const Fusion::Vec3f &n, const Fusion::Vec3f &p)
	Construct a plane given normal and a point to pass through Orientation is given by the normal vector n.
void	getValue (Fusion::Vec3f &normal, float &D) const
	Returns the normal vector and distance from origin.
EMMA_EXPORT void	setValue (const Fusion::Vec3f &normal, float D)
	Sets the normal and D.
void	transform (const Matrix &mat, bool matIsInvTranspose)
	transforms plane by the given matrix if matIsInvTranspose is true, then the inverse transpose matrix has already been computed and should be used
EMMA_EXPORT bool	isInHalfSpace (const Fusion::Vec3f &point) const
	Returns TRUE if the given point is within the half-space defined by the plane.
EMMA_EXPORT float	distFromPlane (const Fusion::Vec3f &point)
	Returns the distance from the plane to the passed point as measured along the normal vector.
EMMA_EXPORT void	offset (float d)
	offset a plane by a given distance
EMMA_EXPORT bool	intersect (const Line &l, Fusion::Vec3f &intersection) const
	Intersect line and plane.

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Detailed Description

Holds a vector that represents the normal to the plane plus a float that corresponds to D in the plane equation Ax + By + Cz + D = 0 where (A,B,C) is the normal.

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Constructor & Destructor Documentation

EMMA_EXPORT Plane (  const Fusion::Vec3f &  n, float  D )  [inline]

Construct a plane given normal and distance from origin along normal. Orientation is given by the normal vector n.

EMMA_EXPORT Plane (  const Fusion::Vec3f &  p0, const Fusion::Vec3f &  p1, const Fusion::Vec3f &  p2 )

Construct a plane given 3 points. Orientation is computed by taking (p1 - p0) x (p2 - p0) and pointing the normal in that direction.

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Member Function Documentation

EMMA_EXPORT bool intersect (  const Line &  l, Fusion::Vec3f &  intersection )  const

Intersect line and plane. Parameters: l  line to intersect with plane. intersection  the returned intersection point Returns: true if there is an intersection, false if line is parallel to plane

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