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

#include "stdafx.h"
#include <stdlib.h>
#include <math.h>
#include "Vector3.h"
#include "VectorMatrixOp.h"

Functions
void	addVector (Vector3 *vector, Vector3 *vector1, Vector3 *vector2)
void	subtractVector (Vector3 *vector, Vector3 *vector1, Vector3 *vector2)
void	multVector (Vector3 *vector, Vector3 *vector1, float scalar)
void	scaleVector (Vector3 *vector, Vector3 *vector1, float 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 *vector, Vector3 *vector1)
void	calcVectorCrossprodukt (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.

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

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,
		float	scalar
	)

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,
		float	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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