BLMatrix2D Struct Reference [¶]
2D matrix represents an affine transformation matrix that can be used to transform geometry and images.
Public Members
double m[6]
struct {
double m00
double m01
double m10
double m11
double m20
double m21
}
};
Member Functions
Construction & Destruction
BLMatrix2D() noexcept = default
constexpr BLMatrix2D(double m00_value, double m01_value, double m10_value, double m11_value, double m20_value, double m21_value) noexcept
Reset Matrix
void reset(double m00_value, double m01_value, double m10_value, double m11_value, double m20_value, double m21_value) noexcept
Overloaded Operators
Common Functionality
Matrix Properties
Matrix Operations
Map Points and Primitives
BLMatrix2D::BLMatrix2D()defaultnoexcept[1/3][¶]
Creates an uninitialized 2D matrix, you must initialize all members before use.
BLMatrix2D::BLMatrix2D()constexprdefaultnoexcept[2/3][¶]
Creates a new matrix initialized to a copy of src matrix.
BLMatrix2D::BLMatrix2D(double m00_value, double m01_value, double m10_value, double m11_value, double m20_value, double m21_value)constexprnoexcept[3/3][¶]
Creates a new matrix initialized to:
[m00 m01]
[m10 m11]
[m20 m21]
BLMatrix2D BLMatrix2D::make_identity()constexprstaticnodiscardnoexcept[¶]
Creates a new matrix initialized to identity.
BLMatrix2D BLMatrix2D::make_translation(double x, double y)constexprstaticnodiscardnoexcept[1/3][¶]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
BLMatrix2D BLMatrix2D::make_translation()constexprstaticnodiscardnoexcept[2/3][¶]
Creates a new matrix initialized to translation.
BLMatrix2D BLMatrix2D::make_translation()constexprstaticnodiscardnoexcept[3/3][¶]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
BLMatrix2D BLMatrix2D::make_scaling(double xy)constexprstaticnodiscardnoexcept[1/4][¶]
Creates a new matrix initialized to scaling.
BLMatrix2D BLMatrix2D::make_scaling(double x, double y)constexprstaticnodiscardnoexcept[2/4][¶]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
BLMatrix2D BLMatrix2D::make_scaling()constexprstaticnodiscardnoexcept[3/4][¶]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
BLMatrix2D BLMatrix2D::make_scaling()constexprstaticnodiscardnoexcept[4/4][¶]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
BLMatrix2D BLMatrix2D::make_rotation(double angle)staticnodiscardnoexcept[1/3][¶]
Creates a new matrix initialized to rotation.
BLMatrix2D BLMatrix2D::make_rotation(double angle, double x, double y)staticnodiscardnoexcept[2/3][¶]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
BLMatrix2D BLMatrix2D::make_rotation(double angle, )staticnodiscardnoexcept[3/3][¶]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
BLMatrix2D BLMatrix2D::make_skewing(double x, double y)staticnodiscardnoexcept[1/2][¶]
Create a new skewing matrix.
BLMatrix2D BLMatrix2D::make_skewing()staticnodiscardnoexcept[2/2][¶]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void BLMatrix2D::reset()noexcept[1/3][¶]
Resets matrix to identity.
void BLMatrix2D::reset()noexcept[2/3][¶]
Resets matrix to other (copy its content to this matrix).
void BLMatrix2D::reset(double m00_value, double m01_value, double m10_value, double m11_value, double m20_value, double m21_value)noexcept[3/3][¶]
Resets matrix to [m00_value, m01_value, m10_value, m11_value, m20_value, m21_value].
void BLMatrix2D::reset_to_translation(double x, double y)noexcept[1/3][¶]
Resets matrix to translation.
void BLMatrix2D::reset_to_translation()noexcept[2/3][¶]
Resets matrix to translation.
void BLMatrix2D::reset_to_translation()noexcept[3/3][¶]
Resets matrix to translation.
void BLMatrix2D::reset_to_scaling(double xy)noexcept[1/4][¶]
Resets matrix to scaling.
void BLMatrix2D::reset_to_scaling(double x, double y)noexcept[2/4][¶]
Resets matrix to scaling.
void BLMatrix2D::reset_to_skewing(double x, double y)noexcept[1/2][¶]
Resets matrix to skewing.
void BLMatrix2D::reset_to_sin_cos(double sin, double cos, double tx = 0.0, double ty = 0.0)noexcept[1/2][¶]
Resets matrix to rotation specified by sin and cos and optional translation tx and ty.
void BLMatrix2D::reset_to_sin_cos(double sin, double cos, )noexcept[2/2][¶]
Resets matrix to rotation specified by sin and cos and optional translation t.
void BLMatrix2D::reset_to_rotation(double angle)noexcept[1/3][¶]
Resets matrix to rotation.
void BLMatrix2D::reset_to_rotation(double angle, double x, double y)noexcept[2/3][¶]
Resets matrix to rotation around a point [x, y].
void BLMatrix2D::reset_to_rotation(double angle, )noexcept[3/3][¶]
Resets matrix to rotation around a point p.
BLTransformType BLMatrix2D::type() constnodiscardnoexcept[¶]
Returns the matrix type, see BLTransformType.
double BLMatrix2D::determinant() constnodiscardnoexcept[¶]
Calculates the matrix determinant.
BLResult BLMatrix2D::invert()noexcept[1/2][¶]
Inverts the matrix, returns BL_SUCCESS if the matrix has been inverted successfully.
BLResult BLMatrix2D::invert(BLMatrix2D& dst, )staticnoexcept[2/2][¶]
Inverts src matrix and stores the result in `dst.
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
double BLMatrix2D::m[6][¶]
Matrix values stored in array.