This class is used to transform coordinates in world coordinate system to the screen coordinate system. More...

Public Member Functions
bool	isMirroring ()
	Returns TRUE if transformation is mirrored and FALSE otherwise. More...

bool	isValid ()
	Returns TRUE if transformation is ok and FALSE otherwise. More...

void	setMirroring (bool mirror)
	Updates mirroring internal attribute. More...

Constructor and destructor methods.
Methods related to instantiation and destruction.
	WorldTransformer ()
	Default constructor. More...

	WorldTransformer (const double &s1llx, const double &s1lly, const double &s1urx, const double &s1ury, double s2width, double s2height)
	Parameterized constructor. More...

	WorldTransformer (const te::gm::Envelope &system1Box, const te::gm::Envelope &system2Box)
	Parameterized constructor. More...

	WorldTransformer (const WorldTransformer &other)
	Copy constructor. More...

	~WorldTransformer ()=default
	Destructor. More...

Transformation methods.
Methods used to change coordinates of a coordinate system to another.
void	setTransformationParameters (const te::gm::Envelope &system1Box, const te::gm::Envelope &system2Box)
	Updates the matrix of transformation to be used. More...

void	system1Tosystem2 (double &wx, double &wy) const
	Transforms the coordinate from world system to screen coordinate system. More...

void	system1Tosystem2 (const double &wx, const double &wy, double &dx, double &dy) const

te::gm::Coord2D	system1Tosystem2 (const te::gm::Coord2D &c1) const

void	system2Tosystem1 (double &dx, double &dy) const
	Transforms the coordinate from screen system to world coordinate system. More...

void	system2Tosystem1 (double dx, double dy, double &wx, double &wy) const

Getter methods of matrix parameters.
Methods used to retrieve informations about the matrix of transformation.
double	getScaleX ()
	Returns the scale in X-axis. More...

double	getScaleY ()
	Returns the scale in Y-axis. More...

double	getTranslateX ()
	Returns the translation in X-axis. More...

double	getTranslateY ()
	Returns the translation in Y-axis. More...

Getter parameters of the world box.
Methods used to retrieve informations about the box in world coordinate system.
double	getS1llx ()
	Returns the lower left corner x value. More...

double	getS1lly ()
	Returns the lower left corner y value. More...

double	getS1urx ()
	Returns the upper right corner x value. More...

double	getS1ury ()
	Returns the upper right corner y value. More...

double	getS1Width ()
	Returns the width of the world box. More...

double	getS1Height ()
	Returns the height of the world box. More...

Getter parameters of the device box.
Methods used to retrieve informations about the box in device coordinate system.
double	getS2llx ()
	Returns the lower left corner x value. More...

double	getS2lly ()
	Returns the lower left corner y value. More...

double	getS2urx ()
	Returns the upper right corner x value. More...

double	getS2ury ()
	Returns the upper right corner y value. More...

double	getS2Width ()
	Returns the width of the device box. More...

double	getS2Height ()
	Returns the height of the device box. More...

Protected Member Functions
void	initVariables (const te::gm::Envelope &system1Box, const te::gm::Envelope &system2Box)
	Initializes the transformer using the arguments. More...

Protected Attributes
bool	m_mirroring {true}
	Flag sinalizing the mirroring. More...

double	m_s1Height {0.}
	Height of System 1 coordinate system. More...

double	m_s1llx {0.}
	Lower left x-coordinate of the System 1. More...

double	m_s1lly {0.}
	Lower left y-coordinate of the System 1. More...

double	m_s1urx {0.}
	Upper right x-coordinate of the System 1. More...

double	m_s1ury {0.}
	Upper right y-coordinate of the System 1. More...

double	m_s1Width {0.}
	Width of System 1 coordinate system. More...

double	m_s2Height {0.}
	Height of System 2 coordinate system. More...

double	m_s2llx {0.}
	Lower left x-coordinate of the System 2. More...

double	m_s2lly {0.}
	Lower left y-coordinate of the System 2. More...

double	m_s2urx {0.}
	Upper right x-coordinate of the System 2. More...

double	m_s2ury {0.}
	Upper right y-coordinate of the System 2. More...

double	m_s2Width {0.}
	Width of System 2 coordinate system. More...

double	m_scaleX {0.}
	Map units per unit along x-direction between Coordinate Systems. More...

double	m_scaleY {0.}
	Map units per unit along y-direction between Coordinate Systems. More...

double	m_translateX
	The value corresponds to the X-Axis translation of system 2. More...

double	m_translateY
	The value corresponds to the Y-Axis translation of system 2. More...

bool	m_valid {false}
	Flag specifying the state of validation of the transformation being used. More...

Detailed Description

This class is used to transform coordinates in world coordinate system to the screen coordinate system.

Definition at line 48 of file qt/widgets/canvas/Grid.cpp.

Constructor & Destructor Documentation

WorldTransformer::WorldTransformer ( )

inline

Default constructor.

Definition at line 60 of file qt/widgets/canvas/Grid.cpp.

WorldTransformer::WorldTransformer	(	const double &	s1llx,
		const double &	s1lly,
		const double &	s1urx,
		const double &	s1ury,
		double	s2width,
		double	s2height
	)

inline

Parameterized constructor.

Definition at line 68 of file qt/widgets/canvas/Grid.cpp.

References setTransformationParameters().

WorldTransformer::WorldTransformer	(	const te::gm::Envelope &	system1Box,
		const te::gm::Envelope &	system2Box
	)

inline

Parameterized constructor.

Definition at line 82 of file qt/widgets/canvas/Grid.cpp.

References setTransformationParameters().

WorldTransformer::WorldTransformer ( const WorldTransformer & other )

inline

Copy constructor.

Parameters

other The object to be copied.

Definition at line 93 of file qt/widgets/canvas/Grid.cpp.

References m_mirroring, m_s1Height, m_s1llx, m_s1lly, m_s1urx, m_s1ury, m_s1Width, m_s2Height, m_s2llx, m_s2lly, m_s2urx, m_s2ury, m_s2Width, m_scaleX, m_scaleY, m_translateX, m_translateY, m_valid, and ~WorldTransformer().

WorldTransformer::~WorldTransformer ( )

default

Destructor.

Referenced by WorldTransformer().

Member Function Documentation

double WorldTransformer::getS1Height ( )

inline

Returns the height of the world box.

Returns: The height of the world box.

Definition at line 362 of file qt/widgets/canvas/Grid.cpp.

References m_s1Height.

double WorldTransformer::getS1llx ( )

inline

Returns the lower left corner x value.

Returns: The lower left corner x value.

Definition at line 312 of file qt/widgets/canvas/Grid.cpp.

References m_s1llx.

double WorldTransformer::getS1lly ( )

inline

Returns the lower left corner y value.

Returns: The lower left corner y value.

Definition at line 322 of file qt/widgets/canvas/Grid.cpp.

References m_s1lly.

double WorldTransformer::getS1urx ( )

inline

Returns the upper right corner x value.

Returns: The upper right corner x value.

Definition at line 332 of file qt/widgets/canvas/Grid.cpp.

References m_s1urx.

double WorldTransformer::getS1ury ( )

inline

Returns the upper right corner y value.

Returns: The upper right corner y value.

Definition at line 342 of file qt/widgets/canvas/Grid.cpp.

References m_s1ury.

double WorldTransformer::getS1Width ( )

inline

Returns the width of the world box.

Returns: The width of the world box.

Definition at line 352 of file qt/widgets/canvas/Grid.cpp.

References m_s1Width.

double WorldTransformer::getS2Height ( )

inline

Returns the height of the device box.

Returns: The height of the device box.

Definition at line 428 of file qt/widgets/canvas/Grid.cpp.

References m_s2Height.

double WorldTransformer::getS2llx ( )

inline

Returns the lower left corner x value.

Returns: The lower left corner x value.

Definition at line 378 of file qt/widgets/canvas/Grid.cpp.

References m_s2llx.

double WorldTransformer::getS2lly ( )

inline

Returns the lower left corner y value.

Returns: The lower left corner y value.

Definition at line 388 of file qt/widgets/canvas/Grid.cpp.

References m_s2lly.

double WorldTransformer::getS2urx ( )

inline

Returns the upper right corner x value.

Returns: The upper right corner x value.

Definition at line 398 of file qt/widgets/canvas/Grid.cpp.

References m_s2urx.

double WorldTransformer::getS2ury ( )

inline

Returns the upper right corner y value.

Returns: The upper right corner y value.

Definition at line 408 of file qt/widgets/canvas/Grid.cpp.

References m_s2ury.

double WorldTransformer::getS2Width ( )

inline

Returns the width of the device box.

Returns: The width of the device box.

Definition at line 418 of file qt/widgets/canvas/Grid.cpp.

References m_s2Width.

double WorldTransformer::getScaleX ( )

inline

Returns the scale in X-axis.

Returns: The scale in X-axis.

Definition at line 266 of file qt/widgets/canvas/Grid.cpp.

References m_scaleX.

double WorldTransformer::getScaleY ( )

inline

Returns the scale in Y-axis.

Returns: The scale in Y-axis.

Definition at line 276 of file qt/widgets/canvas/Grid.cpp.

References m_scaleY.

double WorldTransformer::getTranslateX ( )

inline

Returns the translation in X-axis.

Returns: The transation in X-axis.

Definition at line 286 of file qt/widgets/canvas/Grid.cpp.

References m_translateX.

double WorldTransformer::getTranslateY ( )

inline

Returns the translation in Y-axis.

Returns: The transation in Y-axis.

Definition at line 296 of file qt/widgets/canvas/Grid.cpp.

References m_translateY.

void WorldTransformer::initVariables	(	const te::gm::Envelope &	system1Box,
		const te::gm::Envelope &	system2Box
	)

inlineprotected

Initializes the transformer using the arguments.

Parameters

system1Box	Box in world coordinate system.
system2Box	Box in device coordinate system.

Definition at line 476 of file qt/widgets/canvas/Grid.cpp.

References te::gm::Envelope::getHeight(), te::gm::Envelope::getLowerLeftX(), te::gm::Envelope::getLowerLeftY(), te::gm::Envelope::getUpperRightX(), te::gm::Envelope::getUpperRightY(), te::gm::Envelope::getWidth(), m_s1Height, m_s1llx, m_s1lly, m_s1urx, m_s1ury, m_s1Width, m_s2Height, m_s2llx, m_s2lly, m_s2urx, m_s2ury, m_s2Width, m_scaleX, m_scaleY, m_translateX, and m_translateY.

Referenced by setTransformationParameters().

bool WorldTransformer::isMirroring ( )

inline

Returns TRUE if transformation is mirrored and FALSE otherwise.

Returns: True if the transformation is mirrored and false otherwise.

Definition at line 452 of file qt/widgets/canvas/Grid.cpp.

References m_mirroring.

bool WorldTransformer::isValid ( )

inline

Returns TRUE if transformation is ok and FALSE otherwise.

Returns: True if the transformation is valid and false otherwise.

Definition at line 439 of file qt/widgets/canvas/Grid.cpp.

References m_scaleX, and m_scaleY.

void WorldTransformer::setMirroring ( bool mirror )

inline

Updates mirroring internal attribute.

Parameters

mirror New mirroring state.

Definition at line 462 of file qt/widgets/canvas/Grid.cpp.

References m_mirroring.

Referenced by CalculateHorizontalLines(), CalculateVerticalLines(), and te::qt::widgets::Grid::redraw().

void WorldTransformer::setTransformationParameters	(	const te::gm::Envelope &	system1Box,
		const te::gm::Envelope &	system2Box
	)

inline

Updates the matrix of transformation to be used.

Parameters

system1Box	Box in world coordinate system.
system2Box	Box in screen coordinate system.

Definition at line 133 of file qt/widgets/canvas/Grid.cpp.

References initVariables(), te::gm::Envelope::isValid(), m_s1Height, m_s1llx, m_s1lly, m_s1Width, m_s2Height, m_s2llx, m_s2lly, m_s2Width, m_scaleX, m_scaleY, m_translateX, m_translateY, and m_valid.

Referenced by GetTransformGeo(), and WorldTransformer().

void WorldTransformer::system1Tosystem2	(	double &	wx,
		double &	wy
	)		const

inline

Transforms the coordinate from world system to screen coordinate system.

Parameters

[out]	wx	Coordinate in X-axis.
[out]	wy	Coordinate in Y-axis.

Definition at line 158 of file qt/widgets/canvas/Grid.cpp.

References m_mirroring, m_s2Height, m_scaleX, m_scaleY, m_translateX, and m_translateY.

Referenced by ConvertToMillimeter(), DrawLines(), GetTextsPixmap(), and system1Tosystem2().

void WorldTransformer::system1Tosystem2	(	const double &	wx,
		const double &	wy,
		double &	dx,
		double &	dy
	)		const

inline

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

Parameters

	wx	Coordinate, in X-axis, to be transformed to screen coordinate system.
	wy	Coordinate, in Y-axis, to be transformed to screen coordinate system.
[out]	dx	Coodinate, in X-axis, transformed.
[out]	dy	Coodinate, in Y-axis, transformed.

Definition at line 181 of file qt/widgets/canvas/Grid.cpp.

References m_mirroring, m_s2Height, m_scaleX, m_scaleY, m_translateX, and m_translateY.

void WorldTransformer::system1Tosystem2 ( const te::gm::Coord2D & c1 ) const

inline

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

Parameters

c1	Coordinate to be transformed.

Returns: Returns the coordinate transformed.

Definition at line 200 of file qt/widgets/canvas/Grid.cpp.

References te::gm::Coord2D::getX(), te::gm::Coord2D::getY(), and system1Tosystem2().

void WorldTransformer::system2Tosystem1	(	double &	dx,
		double &	dy
	)		const

inline

Transforms the coordinate from screen system to world coordinate system.

Parameters

[out]	dx	Coordinate in X-axis.
[out]	dy	Coordinate in Y-axis.

Definition at line 218 of file qt/widgets/canvas/Grid.cpp.

References m_mirroring, m_s2Height, m_scaleX, m_scaleY, m_translateX, and m_translateY.

Referenced by GetGeographicCoordLine(), and GetTextsPixmap().

void WorldTransformer::system2Tosystem1	(	double	dx,
		double	dy,
		double &	wx,
		double &	wy
	)		const

inline

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

Parameters

	dx	Coordinate, in X-axis, to be transformed to world coordinate system.
	dy	Coordinate, in Y-axis, to be transformed to world coordinate system.
[out]	wx	Coodinate, in X-axis, transformed.
[out]	wy	Coodinate, in Y-axis, transformed.