Propane::Math Namespace Reference

Classes and methods that provide helpful math functionality. More...

Classes
class	Frustum
	A solid that can be used to determine visibility information. More...
class	Matrix
	A square matrix class for managing 3D (NOT INTENDED for scientific purposes or speed). More...
class	Plane
class	Quaternion
	3D Quaternion class for complex rotation More...
Typedefs
typedef Matrix< 3, double >	Matrix3d
	3x3 high precision type
typedef Matrix< 4, double >	Matrix4d
	4x4 high precision type
typedef Matrix< 3, float >	Matrix3
	3x3 matrix type
typedef Matrix< 4, float >	Matrix4
	4x4 matrix type
Functions
float	linearInterpolate (float f1, float f2, float amt)
float	barycentric (float v1, float v2, float v3, float a1, float a2)
float	randomFloat (float min, float max)
Propane::Math::Matrix4	getMatrix (GLenum matrixName)
template<size_t N, class T>
std::ostream &	operator<< (std::ostream &os, const Matrix< N, T > &m)
	Debugging output.
template<class T>
Matrix< 4, T >	rotation3D (const Vector< 3, T > &axis, double radians)
	Arbitrary axis rotation in 3D.
template<class T>
Matrix< 4, T >	rotationX (double rads)
	Rotation about the X axis.
template<class T>
Matrix< 4, T >	rotationY (double rads)
	Rotation about the Y axis.
template<class T>
Matrix< 4, T >	rotationZ (double rads)
	Rotation about the Z axis.
template<class T>
Matrix< 3, T >	rotation2D (double rads)
	Rotation about the Z axis (in 2D).
template<size_t N, class T>
Matrix< N, T >	scaling (const Vector< N, T > &scale)
	Scaling in 2D/3D.
template<size_t N, class T>
Matrix< N, T >	translation (const Vector< N, T > &translate)
	Translating in 2D/3D.
template<class T>
Vector< 3, T >	cross (const Vector< 3, T > &v1, const Vector< 3, T > &v2)
	Cross product.
template<class T>
Vector< 4, T >	cross (const Vector< 4, T > &v1, const Vector< 4, T > &v2)
	Cross product for 4-vector, ignoring the w-component.
template<size_t N, class T>
Vector< N, T >	operator * (double s, const Vector< N, T > &v)
	Scale with l-value double.

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Detailed Description

Classes and methods that provide helpful math functionality.

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Function Documentation

float Propane::Math::barycentric (  float  v1, float  v2, float  v3, float  a1, float  a2 )

Converts a 2D coordinate to barycentric coordinates along a single axis Parameters: v1  The first vertex of the triangle v2  The second vertex of the triangle v3  The third vertex of the triangle a1  The X-coordinate a2  The Y-coordinate Returns: The coordinate along that axis in barycentric coordinates

Propane::Math::Matrix4 Propane::Math::getMatrix (  GLenum  matrixName  )

Gets a matrix from OpenGL and converts it to the Propane Injector Matrix format. Parameters: matrixName  The matrix you want to get (GL_PROJECTION_MATRIX, GL_MODELVIEW_MATRIX are the only ones supported). Returns: A Propane::Math::Matrix4 of the requested matrix.

float Propane::Math::linearInterpolate (  float  f1, float  f2, float  amt )

Linearly interpolate between two values Parameters: f1  The first value f2  The second value amt  The fractional amount between the two values to interpolate

float Propane::Math::randomFloat (  float  min, float  max )

Get a random floating point number between two bounds Parameters: min  The minimum floating point number. max  The maximum floating point number. If this is less than min, this function always returns 0. Returns: The random floating point number, or 0 if max < min Examples: ShaderUse.cpp.

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