syBR::Core Namespace Reference

core classes More...

Classes
class	AABB
	Axis-Aligned Bounding Box class. More...
class	FileSystem
	File system management class. More...
class	Logger
	Logger class. More...
class	XMLNode
	XML node class. More...
class	XMLFile
	XML file class. More...
class	Math
	Mathematical constants class. More...
class	MathHelpers
	Mathematical helpers operations class. More...
class	Matrix
	4x4 matrix class More...
class	Plane
	3D plane class More...
class	Vector2D
	2D vector class More...
class	Vector3D
	3D vector class More...
Functions
Matrix	operator * (const float scalar, const Matrix &matrix)
	Multiply a matrix by a scalar.
Matrix	operator/ (const float scalar, const Matrix &matrix)
	Divide a matrix by a scalar.
Vector3D	operator * (const Vector3D &vector, const Matrix &matrix)
	Multiply a matrix by a vector.

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Detailed Description

core classes

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Function Documentation

Vector3D syBR::Core::operator *	(	const Vector3D &	vector,
		const Matrix &	matrix
	)

Multiply a matrix by a vector.

Parameters:

	vector	Vector to multiply the matrix to
	matrix	Matrix to be multiplied by

Returns:

Vector containing the result of the multiplication of the matrix by the vector

Note:

This is a convenience operator used to allow two syntaxes for the multiplication of a matrix by a vector even if it isn't strictly correct mathematically speaking :

• matrix * vector
• vector * matrix

Matrix syBR::Core::operator *	(	const float	scalar,
		const Matrix &	matrix
	)

Multiply a matrix by a scalar.

The multiplication of a matrix by a scalar is simple: every element of the matrix will be multiplied by this scalar.

Parameters:

	scalar	Scalar to multiply the matrix by
	matrix	Matrix to be multiplied

Returns:

Matrix containing the result of the multiplication of the matrix by the scalar

Matrix syBR::Core::operator/	(	const float	scalar,
		const Matrix &	matrix
	)

Divide a matrix by a scalar.

The division of a matrix by a scalar is simple: every element of the matrix will be divided by this scalar.

Parameters:

	scalar	Scalar to divide the matrix by
	matrix	Matrix to be divided

Returns:

One of these:

• Matrix containing the result of the division of the matrix by the scalar
• Unmodified matrix if scalar is zero

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Copyright © 2008 by Sebastien Frippiat

This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License.
Last modified Tue Dec 30 17:57:33 2008