Eigene Dateien/9.Semester/Visualisierung/LU/Volume_Renderer_dec05v2/Volume Renderer/VectorMatrixOp.h File Reference

#include "Vector3.h"
#include "Structs.h"

Functions
void	addVector (Vector3 *vector, Vector3 *vector1, Vector3 *vector2)
void	subtractVector (Vector3 *vector, Vector3 *vector1, Vector3 *vector2)
void	multVector (Vector3 *vector, Vector3 *vector1, GLfloat scalar)
void	scaleVector (Vector3 *vector, Vector3 *vector1, GLfloat scalar)
float	getSquaredLength (Vector3 *vector)
float	getDotProduct (Vector3 *vector1, Vector3 *vector2)
float	getDotProduct (Gradient *grad, Vector3 *vector)
void	setVector (Vector3 *vector, float x, float y, float z)
	----------------------------------------------------------------setVector()-
void	normalizeVector (Vector3 *vector1, Vector3 *vector2)
Vector3 *	calcVectorCrossProduct (Vector3 *vector, Vector3 *vector1, Vector3 *vector2)
float	calcAngle (Vector3 *vector1, Vector3 *vector2)
void	rotateVector (Vector3 *vector, Vector3 *vector1, Vector3 *vector2, float angle)
void	matrixMulVector (Vector3 *vector, matrix44 *matr, Vector3 *vector1)
void	loadIdentity (matrix44 *matrix)
void	matrixMulMatrix (matrix44 *matrix, matrix44 *matr1, matrix44 *matr2)
void	translateMatrix (matrix44 *matrix, float x_direction, float y_direction, float z_direction)
void	scaleMatrix (matrix44 *matrix, float x_direction, float y_direction, float z_direction)
void	rotateMatrix (matrix44 *matrix, float x, float y, float z, float angle)

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Function Documentation

void addVector	(	Vector3 *	vector,
		Vector3 *	vector1,
		Vector3 *	vector2
	)

VectorOperations.cpp - This file contains the definition of the vector operations.

float calcAngle	(	Vector3 *	vector1,
		Vector3 *	vector2
	)

This returns the angle between two vectors.

Parameters:

	vector1	The first vector for calculate the angle.
	vector2	The second vector for calculate the angle.

Returns:

The angle the vector.

Vector3* calcVectorCrossProduct	(	Vector3 *	vector,
		Vector3 *	vector1,
		Vector3 *	vector2
	)

This calculates the crossprodukt of two vectors.

Parameters:

	vector	In this parameter the result of the cross product operations will be stored.
	vector1	The first vector for calculate the cross produkt.
	vector2	The second vector for calculate the cross produkt.

float getDotProduct	(	Gradient *	grad,
		Vector3 *	vector
	)

This returns the dot product of the vector.

Parameters:

	gradient	The gradient for calculate the dot produkt.
	vector	The second vector for calculate the dot produkt.

Returns:

The dot product of the gradient and vector.

float getDotProduct	(	Vector3 *	vector1,
		Vector3 *	vector2
	)

This returns the dot product of the vector.

Parameters:

	vector1	The first vector for calculate the dot produkt.
	vector2	The second vector for calculate the dot produkt.

Returns:

The dot product of the vector1 and vector2.

float getSquaredLength

(

Vector3 *

vector

)

This returns the squared length of the vector.

Returns:

The squared length of the vector.

void loadIdentity

(

matrix44 *

matrix

)

This sets the identity matrix.

Parameters:

matrix

The matrix to reset to the identity matrix.

void matrixMulMatrix	(	matrix44 *	matrix,
		matrix44 *	matr1,
		matrix44 *	matr2
	)

This multiplies a matrix with another matrix.

Parameters:

	matrix	The matrix for calculate the produkt.
	matr1	The first matrix for the multiplication.
	matr2	The second matrix for the multiplication.

void matrixMulVector	(	Vector3 *	vector,
		matrix44 *	matr,
		Vector3 *	vector1
	)

This returns a vector multiplied with a matrix.

Parameters:

	vector	The vector for calculate produkt.
	matr	The matrix to multiplie with the vector.
	vector1	The vector to multiplie with the matrix.

Returns:

vector The produkt of matrix * vector.

void multVector	(	Vector3 *	vector,
		Vector3 *	vector1,
		GLfloat	scalar
	)

Operator overoading of * to multiply this vector with a skalar.

Parameters:

	vector1	The vector to multiplie with the scale factor.
	scalar	The scale factor.

void normalizeVector	(	Vector3 *	vector1,
		Vector3 *	vector2
	)

This normalizes the vector

Parameters:

	vector	In this parameter the result of the normalization will be stored.
	vector1	The vector to normalize.

void rotateMatrix	(	matrix44 *	matrix,
		float	x,
		float	y,
		float	z,
		float	angle
	)

This rotates a matrix on the specified point around the specified angle.

Parameters:

	x	The x coordinate of the point.
	y	The y coordinate of the point.
	z	The z coordinate of the point.
	angle	The rotation angle.

void rotateVector	(	Vector3 *	vector,
		Vector3 *	vector1,
		Vector3 *	vector2,
		float	angle
	)

This returns the vector rotated in the direction of vector2 and the specified angle.

Parameters:

	vector1	The vector which should be rotated.
	vector2	The dirction vector of the rotation.
	angle	The rotation angle.

Returns:

vector The rotated vector.

void scaleMatrix	(	matrix44 *	matrix,
		float	x_direction,
		float	y_direction,
		float	z_direction
	)

This scales a matrix with the specified scale factors of each direction.

Parameters:

	x_direction	The scale factor along the x-direction.
	y_direction	The scale factor along the y-direction.
	z_direction	The scale factor along the z-direction.

void scaleVector	(	Vector3 *	vector,
		Vector3 *	vector1,
		GLfloat	scalar
	)

Operator overoading of / to divide this vector by a skalar.

Parameters:

	vector1	The vector to divide by the scale factor.
	scalar	The scale factor.

Returns:

vector The vector with the produkt of vector1 / scalar.

void setVector	(	Vector3 *	vector,
		float	x,
		float	y,
		float	z
	)

----------------------------------------------------------------setVector()-

----------------------------------------------------------------setVector()-

This sets the values of the vector.

Parameters:

	vector	The vector in which the values should be inserted.
	x	The new x coordinate.
	y	The new y coordinate.
	z	The new z coordinate.

void subtractVector	(	Vector3 *	vector,
		Vector3 *	vector1,
		Vector3 *	vector2
	)

Operator overoading of - to subtract vectors.

Parameters:

	vector1	The first vector to subtract.
	vector2	The second vector to subtract.

void translateMatrix	(	matrix44 *	matrix,
		float	x_direction,
		float	y_direction,
		float	z_direction
	)

This translates a matrix to the specified location.

Parameters:

	x_direction	The direction along the x-axis.
	y_direction	The direction along the y-axis.
	z_direction	The direction along the z-axis.

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