Defines a 2D transformation matrix. More...

#include <cadex/ModelData_Transformation2d.hxx>

Public Member Functions
	ModelData_Transformation2d (const ModelData_Transformation2d &theOther)
	Constructor.

	ModelData_Transformation2d (const ModelData_Vector2d &theTranslation)
	Constructor.

	ModelData_Transformation2d (const gp_Trsf2d &)
	Constructor.

	operator const gp_Trsf2d & () const

	operator gp_Trsf2d & ()

ModelData_Transformation2d &	operator= (const gp_Trsf2d &)
	Assignment operator.

bool	IsIdentity () const
	Returns true if the matrix is identity.

void	SetRotationPart (double theV00, double theV01, double theV10, double theV11)
	Sets a rotation component of the matrix.

void	RotationPart (double &theV00, double &theV01, double &theV10, double &theV11) const
	Returns a rotation component of the matrix.

void	SetTranslation (double theX, double theY)
	Sets a translation matrix.

void	SetTranslation (const ModelData_Vector2d &theVec)
	Sets a translation matrix.

void	SetTranslationPart (double theX, double theY)
	Sets a translation component of the matrix.

void	SetTranslationPart (const ModelData_Vector2d &theVec)
	Sets a translation component of the matrix.

void	TranslationPart (double &theX, double &theY) const
	Returns a translation part.

ModelData_Vector2d	TranslationPart () const
	Returns a translation part.

void	SetScaleFactor (double theScale)
	Sets a scale factor.

double	ScaleFactor () const
	Returns a scale factor.

double	Data (int i, int j) const

void	*operator=** (const gp_Trsf2d &theOther)
	Multiplies this matrix with another one.

ModelData_Transformation2d	operator* (const gp_Trsf2d &theOther) const
	Multiplies this matrix with another one.

void	Multiply (const ModelData_Transformation2d &theOther)
	Multiplies this matrix with another one.

ModelData_Transformation2d	Multiplied (const ModelData_Transformation2d &theOther) const

void	*operator=** (const ModelData_Transformation2d &theOther)

ModelData_Transformation2d	operator* (const ModelData_Transformation2d &theOther) const

void	Invert ()
	Inverts the matrix.

ModelData_Transformation2d	Inverted () const
	Returns an inverse of this matrix.

void	Transform (double &theX, double &theY) const
	Transforms the coordinates using this transformation.

Detailed Description

Defines a 2D transformation matrix.

Contains rotation and translation part and a scale factor. A rotation part (2 x 2 matrix) must not contain a scale factor or inversion, i.e. its matrix determinant must be equal to 1.

Individual matrix elements can retrieved using the Data() method.

Constructor & Destructor Documentation

◆ ModelData_Transformation2d() [1/2]

cadex::ModelData_Transformation2d::ModelData_Transformation2d ( const ModelData_Vector2d & theTranslation )

Constructor.

Creates a transformation matrix from translation component.

See also: SetTranslationPart(), TranslationPart().

◆ ModelData_Transformation2d() [2/2]

cadex::ModelData_Transformation2d::ModelData_Transformation2d ( const gp_Trsf2d & theOther )

Constructor.

Creates an identity matrix (IsIdentity() will return true).

Member Function Documentation

◆ Data()

double cadex::ModelData_Transformation2d::Data	(	int	i,
		int	j
	)		const

i must be in the range [0, 2], and j must be in the range [0, 3], otherwise behavior is undefined (most likely a call will result in access violation error).

◆ Invert()

void cadex::ModelData_Transformation2d::Invert ( )

Inverts the matrix.

Makes this matrix an inverse, i.e. A * A^(-1) = I.

◆ Inverted()

ModelData_Transformation2d cadex::ModelData_Transformation2d::Inverted ( ) const

inline

Returns an inverse of this matrix.

See also: Invert().

◆ ScaleFactor()

double cadex::ModelData_Transformation2d::ScaleFactor ( ) const

Returns a scale factor.

By default, a scale factor is 1.

See also: SetScaleFactor().

◆ SetScaleFactor()

void cadex::ModelData_Transformation2d::SetScaleFactor ( double theScale )

Sets a scale factor.

See also: ScaleFactor().

◆ SetTranslation() [1/2]

void cadex::ModelData_Transformation2d::SetTranslation ( const ModelData_Vector2d & theVec )

Sets a translation matrix.

Discards the existing transformation matrix and sets it to define translation for the specified vector.

To specify translation without affecting rotation and scale use SetTranslationPart() function.

◆ SetTranslation() [2/2]

void cadex::ModelData_Transformation2d::SetTranslation	(	double	theX,
		double	theY
	)

Sets a translation matrix.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Sets a matrix to define translation by specified vector.

◆ SetTranslationPart() [1/2]

void cadex::ModelData_Transformation2d::SetTranslationPart ( const ModelData_Vector2d & theVec )

Sets a translation component of the matrix.

See also: SetRotationPart().

◆ SetTranslationPart() [2/2]

void cadex::ModelData_Transformation2d::SetTranslationPart	(	double	theX,
		double	theY
	)

Sets a translation component of the matrix.

See also: SetRotationPart().

◆ Transform()

void cadex::ModelData_Transformation2d::Transform	(	double &	theX,
		double &	theY
	)		const

Transforms the coordinates using this transformation.

theX, theY, theZ are input/output parameters.

◆ TranslationPart()

ModelData_Vector2d cadex::ModelData_Transformation2d::TranslationPart ( ) const

Returns a translation part.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Public Member Functions