Mathlib Class Reference

Mathlib class. More...

#include <mathlib.hpp>

Static Public Member Functions
static void	normalize (float *vec)
	Vector-normalization I. Additionally check for non-zero division.
static void	compute_unit_vector (float *v)
	Vector-normalization II.
static void	compute_cross_prod (float *ret, float *v1, float *v2)
	Vector cross-product.
static void	compute_dot_prod (float &ret, float *v1, float *v2)
	Vector dot-product.
static float	compute_max (float v1, float v2)
	Compute the maximum of 2 values.
static void	compute_rotmat_around_axis (float *rotmat, float *v, float rotangle)
	Compute rotation matrix about an arbitrary axis.
static void	compute_vector_matrix_mult_right (float *retv, float *mat, float *v)
	Compute multiplication of a vector with a matrix. retv = M*v so the vector is multiplied from the right Immediately performs the division by the homogeneous component.
static void	compute_vector_matrix_mult_left (float *retv, float *mat, float *v)
	Compute multiplication of a vector with a matrix. retv = v*M so the vector is multiplied from the left Immediately performs the division by the homogeneous component.
static float	compute_len_2D (float x0, float y0, float x1, float y1)
	Compute the length of a line.

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Detailed Description

Mathlib class.

Implements some handy vector- and matrix arithmetic.

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Member Function Documentation

static void Mathlib::compute_cross_prod	(	float *	ret,
		float *	v1,
		float *	v2
	)			[inline, static]

Vector cross-product.

Parameters:

	ret	The cross product.
	v1	The first vector for the cross-product.
	v2	The second vector for the cross-product.

static void Mathlib::compute_dot_prod	(	float &	ret,
		float *	v1,
		float *	v2
	)			[inline, static]

Vector dot-product.

Parameters:

	ret	The dot-product.
	v1	The first vector for the dot-product.
	v2	The second vector for the dot-product.

static float Mathlib::compute_len_2D	(	float	x0,
		float	y0,
		float	x1,
		float	y1
	)			[inline, static]

Compute the length of a line.

Parameters:

	x0	x-coordinate of the start-point of the line.
	y0	y-coordinate of the start-point of the line.
	x1	x-coordinate of the end-point of the line.
	y1	y-coordinate of the end-point of the line.

static float Mathlib::compute_max	(	float	v1,
		float	v2
	)			[inline, static]

Compute the maximum of 2 values.

Parameters:

	v1	The first value.
	v2	The second value.

static void Mathlib::compute_rotmat_around_axis	(	float *	rotmat,
		float *	v,
		float	rotangle
	)			[inline, static]

Compute rotation matrix about an arbitrary axis.

Parameters:

	rotmat	Destination for the computed rotation matrix.
	v	Vector that determines the rotation axis.
	rotangle	Rotation angle in degrees.

static void Mathlib::compute_unit_vector

(

float *

v

)

[inline, static]

Vector-normalization II.

Parameters:

v

The vector to normalize.

static void Mathlib::compute_vector_matrix_mult_left	(	float *	retv,
		float *	mat,
		float *	v
	)			[inline, static]

Compute multiplication of a vector with a matrix. retv = v*M so the vector is multiplied from the left Immediately performs the division by the homogeneous component.

Parameters:

	retv	Destination for the result.
	mat	The matrix.
	v	The vector.

static void Mathlib::compute_vector_matrix_mult_right	(	float *	retv,
		float *	mat,
		float *	v
	)			[inline, static]

Compute multiplication of a vector with a matrix. retv = M*v so the vector is multiplied from the right Immediately performs the division by the homogeneous component.

Parameters:

	retv	Destination for the result.
	mat	The matrix.
	v	The vector.

static void Mathlib::normalize

(

float *

vec

)

[inline, static]

Vector-normalization I. Additionally check for non-zero division.

Parameters:

vec

The vector to normalize.

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The documentation for this class was generated from the following file:

• mathlib.hpp

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