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Unigine::Math::dmat4 Struct

Header: #include <UnigineMathLib.h>

This class represents a matrix of twelve (3x4) double components.

dmat4 Class

Members


dmat4 ( const dvec3 & col0, const dvec3 & col1, const dvec3 & col2, const dvec3 & col3 ) #

Constructor. Initializes the matrix using given three dvec3 vectors.
Output
Resulting matrix: 
    | col0.x  	 col1.x	  	col2.x	   col3.x | 
M=  | col0.y   	 col1.y	  	col2.y     col3.y |
    | col0.z   	 col1.z	  	col2.z     col3.z |

Arguments

  • const dvec3 & col0 - Source vector for the first column.
  • const dvec3 & col1 - Source vector for the second column.
  • const dvec3 & col2 - Source vector for the third column.
  • const dvec3 & col3 - Source vector for the fourth column.

dmat4 ( const quat & q, const dvec3 & v ) #

Constructor. Initializes the matrix using a given quaternion and a dvec3 vector.

Arguments

  • const quat & q - Source quaternion.
  • const dvec3 & v - Source vector.

dmat4 ( const mat3 & m, const dvec3 & v ) #

Constructor. Initializes the matrix using a given source mat3 matrix (3x3) and a dvec3 vector.

Arguments

  • const mat3 & m - Source matrix (3x3).
  • const dvec3 & v - Source vector.

dmat4 ( const float * m, int transpose ) #

Constructor. Initializes the matrix using a given pointer to the source matrix.

Arguments

  • const float * m - Pointer to the source matrix.
  • int transpose - If transpose is 0 (by default), the matrix is specified in the column major style.

dmat4 ( const double * m, int transpose ) #

Constructor. Initializes the matrix using a given pointer to the source matrix.

Arguments

  • const double * m - Pointer to the source matrix.
  • int transpose - If transpose is 0 (by default), the matrix is specified in the column major style.

dmat4 ( const mat3 & m ) #

Constructor. Initializes the matrix using a given mat3 source matrix (3x3). The matrix elements are filled using corresponding elements of the source matrix.
Output
Resulting matrix: 
    | m00  	 m01  	 m02	  0.0f | 
M=  | m10    m11  	 m12      0.0f |
    | m20    m21     m22      0.0f |

Arguments

  • const mat3 & m - Source matrix (3x3).

dmat4 ( const mat2 & m ) #

Constructor. Initializes the matrix using a given mat2 source matrix (2x2). The matrix elements are filled using corresponding elements of the source matrix.
Output
Resulting matrix: 
    | m00  	 m01  	 0.0f	  0.0f | 
M=  | m10    m11  	 0.0f     0.0f |
    | 0.0f   0.0f    1.0f     0.0f |

Arguments

  • const mat2 & m - Source matrix (2x2).

dmat4 ( double v ) #

Constructor. Initializes the matrix using a given scalar value.
Source code (UnigineScript)
dmat4(2.0);
						
/* Creates a matrix						
| 2.0 	2.0 	2.0		2.0	|
| 2.0 	2.0 	2.0		2.0	|
| 2.0 	2.0 	2.0		2.0	|
*/

Arguments

  • double v - Scalar value.

dmat4 ( const dmat4 & m ) #

Constructor. Initializes the matrix by copying a given source matrix.

Arguments

  • const dmat4 & m - Source matrix.

dmat4 ( ) #

Default constructor. Produces an identity matrix.

explicit dmat4 ( const mat4 & m ) #

Constructor. Initializes the matrix using a given source mat4 matrix (4x4). The matrix elements are filled using corresponding elements of the source matrix.

Arguments

  • const mat4 & m - Source matrix (4x4).

explicit dmat4 ( const quat & q ) #

Constructor. Initializes the matrix using a given source quaternion.

Arguments

  • const quat & q - Source quaternion.

void set ( int row, int column, double v ) #

Sets a new value of the matrix element specified by row and column.

Arguments

  • int row - Row.
  • int column - Column.
  • double v - The value to be set.

void set ( const float * v, int transpose ) #

Sets new matrix values using a pointer to the source matrix.

Arguments

  • const float * v - Pointer to the source matrix.
  • int transpose - If transpose is 0 (by default), the matrix is specified in the column major style.

void set ( const mat2 & m ) #

Sets new matrix values using a given mat2 source matrix (2x2). The matrix elements are filled using corresponding elements of the source matrix.

Arguments

  • const mat2 & m - Source matrix (2x2).

void set ( const mat3 & m ) #

Sets new matrix values using a given mat3 source matrix (3x3). The matrix elements are filled using corresponding elements of the source matrix.

Arguments

  • const mat3 & m - Source matrix (3x3).

void set ( const quat & q, const dvec3 & v ) #

Sets new matrix values using a given quaternion and a dvec3 vector.

Arguments

  • const quat & q - Source quaternion.
  • const dvec3 & v - Source vector.

void set ( const quat & q ) #

Sets new matrix values using a given source quaternion.

Arguments

  • const quat & q - Source quaternion.

void set ( const mat4 & m ) #

Sets new matrix values using a given mat4 source matrix (4x4). The matrix elements are filled using corresponding elements of the source matrix.

Arguments

  • const mat4 & m - Source matrix (4x4).

void set ( const double * v, int transpose ) #

Sets new matrix values using a pointer to the source matrix.

Arguments

  • const double * v - Pointer to the source matrix.
  • int transpose - If transpose is 0 (by default), the matrix is specified in the column major style.

void set ( const dmat4 & m ) #

Sets the matrix equal to the specified source matrix.

Arguments

  • const dmat4 & m - Source matrix.

void set ( const mat3 & m, const dvec3 & v ) #

Sets new matrix values using a given source mat3 matrix (3x3) and a dvec3 vector.

Arguments

  • const mat3 & m - Source matrix (3x3).
  • const dvec3 & v - Source vector.

double & get ( int row, int column ) #

Returns the reference to the matrix element specified by given row and column.

Arguments

  • int row - Row.
  • int column - Column.

Return value

Matrix element reference.

double get ( int row, int column ) const#

Returns the value of the matrix element specified by given row and column.

Arguments

  • int row - Row.
  • int column - Column.

Return value

Matrix element value.

double * get ( ) #

Returns the pointer to the matrix.

Return value

Pointer to the matrix.

const double * get ( ) const#

Returns the constant pointer to the matrix.

Return value

Constant pointer to the matrix.

void get ( double * m, int transpose ) #

Fills the destination matrix, specified by the given pointer, with matrix values.

Arguments

  • double * m - Destination matrix pointer.
  • int transpose - If transpose is 0 (by default), the matrix is specified in the column major style.

void setColumn ( int column, const dvec4 & v ) #

Sets the specified column of the matrix using a given dvec4 vector as a source.

Arguments

  • int column - Column.
  • const dvec4 & v - Source vector.

dvec4 getColumn ( int column ) const#

Returns the specified matrix column.

Arguments

  • int column - Column.

Return value

The dvec4 vector with column values.

void setColumn3 ( int column, const dvec3 & v ) #

Sets the specified column of the matrix using a given three-component dvec3 vector as a source.

Arguments

  • int column - Column.
  • const dvec3 & v - Three-component source vector.

dvec3 getColumn3 ( int column ) const#

Returns the specified matrix column.

Arguments

  • int column - Column.

Return value

The dvec3 vector with column values.

void setIdentity ( ) #

Sets the matrix equal to the identity matrix.

void setRotate ( const dvec3 & axis, double angle ) #

Sets the rotation matrix for a given axis.

Arguments

  • const dvec3 & axis - Rotation axis.
  • double angle - Rotation angle, in degrees.

quat getRotate ( ) const#

Returns the quaternion, representing the rotation part of the matrix.

Return value

Matrix rotation part.

void setRotateX ( double angle ) #

Sets X rotation matrix.

Arguments

  • double angle - Rotation angle, in degrees.

void setRotateY ( double angle ) #

Sets Y rotation matrix.

Arguments

  • double angle - Rotation angle, in degrees.

void setRotateZ ( double angle ) #

Sets Z rotation matrix.

Arguments

  • double angle - Rotation angle, in degrees.

void setRow ( int row, const dvec4 & v ) #

Sets the specified row of the matrix using a given dvec4 vector as a source.

Arguments

  • int row - Row.
  • const dvec4 & v - Source vector.

dvec4 getRow ( int row ) const#

Returns the specified matrix row.

Arguments

  • int row - Row.

Return value

The dvec4 vector with row values.

void setRow3 ( int row, const dvec3 & v ) #

Sets the specified row of the matrix using a given three-component dvec3 vector as a source, the last element of the row remains as is.

Arguments

  • int row - Row.
  • const dvec3 & v - Three-component source vector.

dvec3 getRow3 ( int row ) const#

Returns the first three elements of the specified matrix row.

Arguments

  • int row - Row.

Return value

The dvec3 vector with the first three elements of the specified matrix row.

void setScale ( const dvec3 & v ) #

Fills the scaling matrix using a given dvec3 source vector.
Output
Scaling matrix: 
    | v.x   	0.0f  	  0.0f	    0.0f | 
S=  | 0.0f      v.y  	  0.0f      0.0f |
    | 0.0f      0.0f      v.z  		0.0f |

Arguments

  • const dvec3 & v - Source vector.

vec3 getScale ( ) const#

Returns the three-component vec3 vector, representing the scaling part of the matrix.

Return value

Three-component vector with the scaling part of the matrix.

void setTranslate ( const dvec3 & v ) #

Fills the translation matrix using a given dvec3 source vector.
Output
Translation matrix: 
    | 1.0f   	0.0f  	  0.0f	    v.x | 
T=  | 0.0f      1.0f  	  0.0f      v.y |
    | 0.0f      0.0f      1.0f  	v.z |

Arguments

  • const dvec3 & v - Source vector.

dvec3 getTranslate ( ) const#

Returns the three-component vec3 vector, representing the translation part of the matrix.

Return value

Three-component vector with the translation part of the matrix.

void setZero ( ) #

Sets all matrix elements equal to 0.

const double * operator const double * ( ) #

Performs type conversion to const double *.

const void * operator const void * ( ) #

Performs type conversion to const void *.

double * operator double * ( ) #

Performs type conversion to double *.

void * operator void * ( ) #

Performs type conversion to void *.

dmat4 & operator*= ( const dmat4 & m ) #

Performs matrix multiplication.

Arguments

  • const dmat4 & m - Matrix.

Return value

Resulting matrix.

dmat4 & operator*= ( double v ) #

Performs scalar multiplication.

Arguments

  • double v - Scalar value.

Return value

Resulting matrix.

dmat4 & operator+= ( const dmat4 & m ) #

Performs matrix addition.

Arguments

  • const dmat4 & m - Matrix.

Return value

Resulting matrix.

dmat4 operator- ( ) #

Performs matrix negation.

Return value

Resulting matrix.

dmat4 & operator-= ( const dmat4 & m ) #

Performs matrix subtraction.

Arguments

  • const dmat4 & m - Matrix.

Return value

Resulting matrix.

dmat4 & operator= ( const dmat4 & m ) #

Performs matrix assignment. Destination matrix = Source matrix.

Arguments

  • const dmat4 & m - Source matrix.

Return value

Result.

double & operator[] ( int i ) #

Performs array access to the matrix item reference using given item index.

Arguments

  • int i - Matrix item index.

Return value

Matrix item reference.

double operator[] ( int i ) const#

Performs array access to the matrix item using given item index.

Arguments

  • int i - Matrix item index.

Return value

Matrix item.

__m128d sse0 ( ) #

Returns the values of matrix elements m00, m10 as a 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Return value

128-bit variable containing the following matrix elements: m00, m10.

void sse0 ( const __m128d & v ) #

Sets the values of matrix elements m00, m10 using a given 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

  • const __m128d & v - 128-bit variable containing the following matrix elements: m00, m10.

void sse1 ( const __m128d & v ) #

Sets the values of matrix elements m20, m01 using a given 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

  • const __m128d & v - 128-bit variable containing the following matrix elements: m20, m01.

__m128d sse1 ( ) #

Returns the values of matrix elements m20, m01 as a 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Return value

128-bit variable containing the following matrix elements: m20, m01.

void sse2 ( const __m128d & v ) #

Sets the values of matrix elements m11, m21 using a given 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

  • const __m128d & v - 128-bit variable containing the following matrix elements: m11, m21.

__m128d sse2 ( ) #

Returns the values of matrix elements m11, m21 as a 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Return value

128-bit variable containing the following matrix elements: m11, m21.

void sse3 ( const __m128d & v ) #

Sets the values of matrix elements m02, m12 using a given 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

  • const __m128d & v - 128-bit variable containing the following matrix elements: m02, m12.

__m128d sse3 ( ) #

Returns the values of matrix elements m02, m12 as a 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Return value

128-bit variable containing the following matrix elements: m02, m12.

void sse4 ( const __m128d & v ) #

Sets the values of matrix elements m22, m03 using a given 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

  • const __m128d & v - 128-bit variable containing the following matrix elements: m22, m03.

__m128d sse4 ( ) #

Returns the values of matrix elements m22, m03 as a 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Return value

128-bit variable containing the following matrix elements: m22, m03.

__m128d sse5 ( ) #

Returns the values of matrix elements m13, m23 as a 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Return value

128-bit variable containing the following matrix elements: m13, m23.

void sse5 ( const __m128d & v ) #

Sets the values of matrix elements m13, m23 using a given 128-bit variable.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

  • const __m128d & v - 128-bit variable containing the following matrix elements: m13, m23.

dvec3 getAxisX ( ) #

Returns the normalized vector representing the X axis. Call this method to get the right or left vector of the matrix:
Source code (C++)
matrix.getAxisX(); // the left vector
-matrix.getAxisX(); // the right vector

Return value

Vector representing the X axis.

dvec3 getAxisY ( ) #

Returns the normalized vector representing the Y axis. Call this method to get the back or forward vector of the matrix:
Source code (C++)
matrix.getAxisY(); // the back vector
-matrix.getAxisY(); // the forward vector

Return value

Vector representing the Y axis.

dvec3 getAxisZ ( ) #

Returns the normalized vector representing the Z axis. Call this method to get the up or down vector of the matrix:
Source code (C++)
matrix.getAxisZ(); // the up vector
-matrix.getAxisZ(); // the down vector

Return value

Vector representing the Z axis.
Last update: 2020-07-10