IcePlane.h File Reference

Go to the source code of this file.

Classes
class	Plane

Macros
#define	PLANE_EPSILON   (1.0e-7f)
#define	__ICEPLANE_H__
#define	PLANE_EPSILON   (1.0e-7f)

Functions
inline_ void	TransformPlane (Plane &transformed, const Plane &plane, const Matrix4x4 &transform)
inline_ void	TransformPlane (Plane &plane, const Matrix4x4 &transform)

Detailed Description

Contains code for planes.

Author

Pierre Terdiman

Date

April, 4, 2000

Definition in file IcePlane.h.

Macro Definition Documentation

#define __ICEPLANE_H__

Definition at line 14 of file Opcode.h.

#define PLANE_EPSILON   (1.0e-7f)

#define PLANE_EPSILON   (1.0e-7f)

Definition at line 16 of file Opcode.h.

Referenced by Plane::Belongs().

Function Documentation

inline_ void TransformPlane	(	Plane &	transformed,
		const Plane &	plane,
		const Matrix4x4 &	transform
	)

Transforms a plane by a 4x4 matrix. Same as Plane * Matrix4x4 operator, but faster.

Parameters

transformed	[out] transformed plane
plane	[in] source plane
transform	[in] transform matrix

Warning

the plane normal must be unit-length

Definition at line 87 of file IcePlane.h.

    {
        // Rotate the normal using the rotation part of the 4x4 matrix
        transformed.n = plane.n * Matrix3x3(transform);

        // Compute new d
        transformed.d = plane.d - (Point(transform.GetTrans())|transformed.n);
    }

inline_ void TransformPlane	(	Plane &	plane,
		const Matrix4x4 &	transform
	)

Transforms a plane by a 4x4 matrix. Same as Plane * Matrix4x4 operator, but faster.

Parameters

plane	[in/out] source plane (transformed on return)
transform	[in] transform matrix

Warning

the plane normal must be unit-length

Definition at line 104 of file IcePlane.h.

    {
        // Rotate the normal using the rotation part of the 4x4 matrix
        plane.n *= Matrix3x3(transform);

        // Compute new d
        plane.d -= Point(transform.GetTrans())|plane.n;
    }