Unigine::Math::mat2 Struct

Methods:

Name	Description View: Sort by:
mat2	Default constructor.
set	Sets the matrix using the argument float values.
get	Returns the matrix values by filling the specified argument.
setColumn	Sets the specified column of the matrix using a given vec2 vector as a source.
getColumn	Returns the specified matrix column.
setIdentity	Sets the matrix equal to the identity matrix.
setRotate	Fills the rotation matrix using a given angle.
setRow	Sets the specified row of the matrix using a given vec2 vector as a source.
getRow	Returns the specified matrix row.
setScale	Fills the scaling matrix using a given vec2 source vector.
setZero	Sets all matrix elements equal to 0.
operator const float *	Performs type conversion to const float *.
operator const void *	Performs type conversion to const void *.
operator float *	Performs type conversion to float *.
operator void *	Performs type conversion to void *.
*operator =**	Performs matrix multiplication.
operator +=	Performs matrix addition.
operator -	Performs matrix negation.
operator -=	Performs matrix subtraction.
operator =	Performs matrix assignment.
operator []	Performs array access to the matrix item using a given item index.
trace	Returns the trace of the matrix.
determinant	Returns the determinant of the matrix.

Variables:

Name	Description
mat2_identity	Identity matrix.
mat2_one	Matrix of ones.
mat2_zero	Zero matrix.

mat2 Class

Members

mat2 ( ) #

Default constructor. Produces an identity matrix.

mat2 ( const mat2& m ) #

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

Arguments

const mat2& m - Source matrix.

mat2 ( float v ) #

Constructor. Initializes the matrix using a given scalar value.

Source code (UnigineScript)

mat2(2.0);
						
/* Creates a matrix						
| 2.0	2.0	|
| 2.0	2.0	|
*/

Arguments

float v - Scalar value.

mat2 ( 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.

Arguments

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

mat2 ( const mat4& m ) #

Constructor. Initializes the matrix 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).

mat2 ( const dmat4& m ) #

Constructor. Initializes the matrix using a given dmat4 source matrix (3x4). The matrix elements are filled using corresponding elements of the source matrix.

Arguments

const dmat4& m - Source matrix (3x4).

mat2 ( const vec2& col0, const vec2& col1 ) #

Constructor. Initializes the matrix by given two vec2 vectors.

Output

Resulting matrix: 
    | col0.x   	 col1.x | 
M=  | col0.y     col1.y |

Arguments

const vec2& col0 - Source vector for the first column.
const vec2& col1 - Source vector for the second column.

mat2 ( float m00_, float m10_, float m01_, float m11_ ) #

Constructor. Initializes the matrix with given float values.

Output

Resulting matrix: 
    | m00_   m10_ | 
M=  | m01_   m11_ |

Arguments

float m00_ - m00_ element.
float m10_ - m10_ element.
float m01_ - m01_ element.
float m11_ - m11_ element.

mat2 ( float m00_, float m10_, float m01_, float m11_, ConstexprTag ) #

Constructor. Initializes the matrix with given constant float values.

Output

Resulting matrix: 
    | m00_   m10_ | 
M=  | m01_   m11_ |

Arguments

float m00_ - m00_ element.
float m10_ - m10_ element.
float m01_ - m01_ element.
float m11_ - m11_ element.
ConstexprTag - Auxiliary tag.

mat2 ( float v, ConstexprTag ) #

Constructor. Initializes the matrix with the given float value.

Output

Resulting matrix: 
    | v   v | 
M=  | v   v |

Arguments

float v - Value.
ConstexprTag - Auxiliary tag.

mat2 ( const mat2x2_values& m ) #

Constructor. Initializes the matrix using a given source matrix values.

Arguments

const mat2x2_values& m - The source value storing matrix float values.

void set ( const mat2x2_values& m ) #

Sets the matrix using the argument float values.

Arguments

const mat2x2_values& m - The source value storing matrix float values.

void set ( const mat2& m ) #

Sets the matrix equal to the specified source matrix.

Arguments

const mat2& m - Source matrix.

void set ( const mat3& m ) #

Sets the matrix using a given mat3 source matrix (3x3). Values m00, m01, m10, m11 from the source matrix are used.

Arguments

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

void set ( const mat4& m ) #

Sets the matrix using a given mat4 source matrix (4x4). Values m00, m01, m10, m11 from the source matrix are used.

Arguments

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

void set ( const dmat4& m ) #

Sets the matrix using a given dmat4 source matrix (3x4). Values m00, m01, m10, m11 from the source matrix are used.

Arguments

const dmat4& m - Source matrix (3x4).

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

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

Arguments

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

void get ( mat2x2_values& m ) const#

Returns the matrix values by filling the specified argument.

Arguments

mat2x2_values& m - The destination value to store matrix float values.

mat2x2_values & get ( ) #

Returns the value storing matrix float values.

Return value

The value storing matrix float values.

const mat2x2_values & get ( ) const#

Returns the constant value storing matrix float values.

Return value

The constant value storing matrix float values.

float & 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.

float 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.

void setColumn ( int column, const vec2& v ) #

Sets the specified column of the matrix using a given vec2 vector as a source.

Arguments

int column - Column.
const vec2& v - Source vector.

vec2 getColumn ( int column ) const#

Returns the specified matrix column.

Arguments

int column - Column.

Return value

The vec2 vector with column values.

void setIdentity ( ) #

Sets the matrix equal to the identity matrix.

void setRotate ( float angle ) #

Fills the rotation matrix using a given angle.

Output

Rotation matrix: 
    | cos(angle)   	-sin(angle) | 
R=  | sin(angle)     cos(angle) |

Arguments

float angle - Rotation angle, in degrees.

void setRow ( int row, const vec2& v ) #

Sets the specified row of the matrix using a given vec2 vector as a source.

Arguments

int row - Row.
const vec2& v - Source vector.

vec2 getRow ( int row ) const#

Returns the specified matrix row.

Arguments

int row - Row.

Return value

The vec2 vector with row values.

void setScale ( const vec2& v ) #

Fills the scaling matrix using a given vec2 source vector.

Output

Scaling matrix: 
    | v.x   	0.0f | 
S=  | 0.0f      v.y  |

Arguments

const vec2& v - Source vector.

void setZero ( ) #

Sets all matrix elements equal to 0.

const float * operator const float * ( ) const#

Performs type conversion to const float *.

const void * operator const void * ( ) const#

Performs type conversion to const void *.

float * operator float * ( ) #

Performs type conversion to float *.

void * operator void * ( ) #

Performs type conversion to void *.

mat2 & operator*= ( const mat2& m ) #

Performs matrix multiplication.

Arguments

const mat2& m - Matrix.

Return value

Resulting matrix.

mat2 & operator*= ( float v ) #

Performs scalar multiplication.

Arguments

float v - Scalar value.

Return value

Resulting matrix.

mat2 & operator+= ( const mat2& m ) #

Performs matrix addition.

Arguments

const mat2& m - Matrix.

Return value

Resulting matrix.

mat2 operator- ( ) const#

Performs matrix negation.

Return value

Resulting matrix.

mat2 & operator-= ( const mat2& m ) #

Performs matrix subtraction.

Arguments

const mat2& m - Matrix.

Return value

Resulting matrix.

mat2 & operator= ( const mat2& m ) #

Performs matrix assignment. Destination matrix = Source matrix.

Arguments

const mat2& m - Source matrix.

Return value

Result.

float operator[] ( int i ) const#

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

Arguments

int i - Matrix item index.

Return value

Matrix item.

float & operator[] ( int i ) #

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

Arguments

int i - Matrix item index.

Return value

Matrix item reference.

float trace ( ) const#

Returns the trace of the matrix.

Return value

Trace of the matrix.

float determinant ( ) const#

Returns the determinant of the matrix.

Return value

Determinant of the matrix.

Last update: 2024-08-16

Help improve this article

Was this article helpful?

Report a problem related to this article

(or select a word/phrase and press Ctrl+Enter)

Unigine::Math::mat2 Struct

In This Article:

Methods:

Variables:

mat2 Class

Members

mat2 ( ) #

mat2 ( const mat2& m ) #

Arguments

mat2 ( float v ) #

Arguments

mat2 ( const mat3& m ) #

Arguments

mat2 ( const mat4& m ) #

Arguments

mat2 ( const dmat4& m ) #

Arguments

mat2 ( const vec2& col0, const vec2& col1 ) #

Arguments

mat2 ( float m00_, float m10_, float m01_, float m11_ ) #

Arguments

mat2 ( float m00_, float m10_, float m01_, float m11_, ConstexprTag ) #

Arguments

mat2 ( float v, ConstexprTag ) #

Arguments

mat2 ( const mat2x2_values& m ) #

Arguments

void set ( const mat2x2_values& m ) #

Arguments

void set ( const mat2& m ) #

Arguments

void set ( const mat3& m ) #

Arguments

void set ( const mat4& m ) #

Arguments

void set ( const dmat4& m ) #

Arguments

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

Arguments

void get ( mat2x2_values& m ) const#

Arguments

mat2x2_values & get ( ) #

Return value

const mat2x2_values & get ( ) const#

Return value

float & get ( int row, int column ) #

Arguments

Return value

float get ( int row, int column ) const#

Arguments

Return value

void setColumn ( int column, const vec2& v ) #

Arguments

vec2 getColumn ( int column ) const#

Arguments

Return value

void setIdentity ( ) #

void setRotate ( float angle ) #

Arguments

void setRow ( int row, const vec2& v ) #

Arguments

vec2 getRow ( int row ) const#

Arguments

Return value

void setScale ( const vec2& v ) #

Arguments

void setZero ( ) #

const float * operator const float * ( ) const#

const void * operator const void * ( ) const#

float * operator float * ( ) #

void * operator void * ( ) #

mat2 & operator*= ( const mat2& m ) #

Arguments

Return value

mat2 & operator*= ( float v ) #

Arguments

Return value

mat2 & operator+= ( const mat2& m ) #

Arguments

Return value