#include "Grid.h"
#include "../../../common/StringUtils.h"
#include "../../../geometry/Envelope.h"
#include "../../../geometry/MultiLineString.h"
#include "../../../geometry/Utils.h"
#include "../../../maptools/Utils.h"
#include "../Utils.h"
#include "MapDisplay.h"
#include <QPainter>
#include <QPixmap>
#include <vector>

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

Functions
std::vector< te::gm::LineString >	CalculateHorizontalLines (const te::gm::Envelope &world, const double &horizontalLineInitial, const double &horizontalLineGap, const int &maxGaps)
	Calculates the lines in x-axis. More...

std::vector< te::gm::LineString >	CalculateHorizontalLines (const te::gm::Envelope &planarBox, const te::gm::Envelope &geographicBox, const te::gm::Envelope &boxMM, const double &horizontalLineInitial, const double &horizontalLineGap, const int &maxGaps, const int &planarSRID, const int &geodesicSRID)
	Calculates the horizontal lines of the grid. More...

double	CalculateInitialX (const te::gm::Envelope &env, const double &verticalLineInitial, const double &verticalLineGap)
	Calculates the initial coordinate in x-axis. More...

double	CalculateInitialY (const te::gm::Envelope &env, const double &horizontalLineInitial, const double &horizontalLineGap)
	Calculates the initial coordinate in y-axis. More...

std::vector< te::gm::LineString >	CalculateVerticalLines (const te::gm::Envelope &planarBox, const double &verticalLineInitial, const double &verticalLineGap, const int &maxGaps)
	Calculates the lines in y-axis. More...

std::vector< te::gm::LineString >	CalculateVerticalLines (const te::gm::Envelope &planarBox, const te::gm::Envelope &geographicBox, const te::gm::Envelope &boxMM, const double &verticalLineInitial, const double &verticalLineGap, const int &maxGaps, const int &planarSRID, const int &geodesicSRID)
	Calculates the vertical lines of the grid. More...

std::string	ConvertDecimalToDegree (const double &value, bool bDegrees, bool bMinutes, bool bSeconds, int precision)
	Converts a value to a degree-minute-second description. For presentation purposes. More...

void	ConvertToMillimeter (const WorldTransformer &transf, te::gm::LineString *line)
	Converts the line from world coordinate system to device coordinate system. More...

void	DrawAllLines (WorldTransformer transf, QPainter *painter, const std::vector< te::gm::LineString > &vlines, const std::vector< te::gm::LineString > &hlines, const QFont &font)
	Draw horizontal and vertical lines. More...

void	DrawLine (QPainter *painter, QLineF &line, const int &txtOffSet, const bool &vertical)
	Draws the line using the giving painter. More...

void	DrawLines (WorldTransformer transf, QPainter *painter, const std::vector< te::gm::LineString > &lines, const int &txtOffSet, const bool &vertical)
	Draws lines on painter. More...

void	DrawTexts (WorldTransformer transf, QPainter *painter, const std::vector< te::gm::LineString > &vlines, const std::vector< te::gm::LineString > &hlines, const QFont &font)
	Draws all texts of the lines on the grid. More...

void	GetGeographicCoordLine (WorldTransformer transf, te::gm::LineString &line, const int &geoSRID)
	Transforms a line from a coordinate system to another. More...

double	GetInitialCoord (const double &initialCoord, const double &distance, double &gap)
	Calculates a suggar initial coordinate in world coordinate system. More...

void	GetTextDimensions (const QFont font, const QString &text, int &w, int &h)
	Returns the dimensions of a text giving a font. More...

QPixmap *	GetTextPixmap (const QString &txt, const QFont &font, const QPen &pen)
	Returns a pixmap with the text. More...

QPixmap *	GetTextsPixmap (WorldTransformer transf, const std::vector< te::gm::LineString > &lines, const QFont &font, const QPen &pen, const bool &vertical, const QSize &displayDimensions)
	Returns an image with the headers of the grid. More...

QPixmap *	GetTextsPixmap (WorldTransformer transf, const std::vector< te::gm::LineString > &lines, QPainter &painter, const bool &vertical, const bool &top, const int &geoSrid)
	Returns a pixmap with the values of the coordinates to be presented. More...

WorldTransformer	GetTransformGeo (te::gm::Envelope boxgeo, te::gm::Envelope boxmm)
	Giving a box in world coordinate system and another in device coordinates, returns the WorldTransformer. More...

int	PlanarSRID (const te::gm::Envelope &worldBox)
	Giving a box in world coordinate system, calculates the better SRID we must use to transform. More...

std::string	Proj4DescToGeodesic ()
	Returns a default description for a geodesic coordinate system. More...

void	RemapToPlanar (te::gm::LineString *line, int sourceSRID, int planarSRID)
	Transforms a LineString from a coordinate system to another. More...

int	RoundNumber (const double &value)
	Retuns an rounded number. If the decimal part of number is less than .5, rounds to the floor, otherwise it will be rounded up. More...

void	SetSRID (std::vector< te::gm::LineString > &lines, const int &srid)
	Sets the srid of a set of lines. More...

int	ToGeographic (const te::gm::Envelope &worldBox, int sourceSRID)
	Calculates the srid for the better geodesic coordinate system, given a bounding rectangle and it's srid. More...

int	ToPlanar (const te::gm::Envelope &worldBox, int sourceSRID)
	Calculates the srid for the better planar coordinate system, given a bounding rectangle and it's srid. More...

te::common::UnitOfMeasurePtr	UnitMeasure (int srid)
	Returns the unit of measure of the given srid. More...

te::gm::Envelope	WorldBoxTo (const te::gm::Envelope &worldBox, const unsigned int &sourceSRID, const unsigned int &targetSRID)
	Transforms the coordinates of an envelope from a system of coordinates to another. More...

te::gm::Envelope	WorldBoxTo (const te::gm::Envelope &worldBox, int sourceSRID, int targetSRID)
	Transforms a bounding rectangle from a srid into another one. More...

Function Documentation

std::vector<te::gm::LineString> CalculateHorizontalLines	(	const te::gm::Envelope &	world,
		const double &	horizontalLineInitial,
		const double &	horizontalLineGap,
		const int &	maxGaps
	)

Calculates the lines in x-axis.

Parameters

world	Box in world coordinate system (MUST BE in a planar coordinate system).
horizontalLineInitial	Inital X.
horizontalLineGap	Distance between lines in x-axis.
maxGaps	Maximum number of lines to be presented on the grid.

Returns: A vector with the calculated lines in x-axis.

Definition at line 664 of file qt/widgets/canvas/Grid.cpp.

References CalculateInitialY(), te::gm::Envelope::getHeight(), te::gm::Envelope::getLowerLeftX(), te::gm::Envelope::getLowerLeftY(), te::gm::Envelope::getUpperRightX(), te::gm::Envelope::getUpperRightY(), te::gm::LineStringType, and te::gm::LineString::setPoint().

Referenced by te::qt::widgets::Grid::makeGeographicGrid(), and te::qt::widgets::Grid::makePlanarGrid().

std::vector<te::gm::LineString> CalculateHorizontalLines	(	const te::gm::Envelope &	planarBox,
		const te::gm::Envelope &	geographicBox,
		const te::gm::Envelope &	boxMM,
		const double &	horizontalLineInitial,
		const double &	horizontalLineGap,
		const int &	maxGaps,
		const int &	planarSRID,
		const int &	geodesicSRID
	)

Calculates the horizontal lines of the grid.

Parameters

planarBox	Bounding rectangle in planar coordinate system.
geographicBox	Bounding rectangle in geographic coordinates.
boxMM	Bounding rectangle of the device in pixel coordinate system.
horizontalLineInitial	Initial coordinate.
horizontalLineGap	Difference between the coordinates.
maxGaps	Maximum number of lines to be created.
planarSRID	Srid of a planar coordinate system.
geodesicSRID	Srid of a geographic coordinate system.

Returns: A vector with the created lines.

Note: If display is in a geographic coordinate system, planarBox MUST be an invalid rectangle and planarSRID MUST be the value -1. If both weren't correctly passed, this method may not work properly.

Definition at line 1314 of file qt/widgets/canvas/Grid.cpp.

References CalculateInitialY(), ConvertToMillimeter(), te::mnt::CreateLine, te::gm::GeometryCollection::getGeometryN(), te::gm::GetGeomFromEnvelope(), te::gm::Envelope::getLowerLeftX(), te::gm::Envelope::getLowerLeftY(), te::gm::GeometryCollection::getNumGeometries(), te::gm::Geometry::getSRID(), GetTransformGeo(), te::gm::Envelope::getUpperRightX(), te::gm::Envelope::getUpperRightY(), te::gm::Geometry::intersection(), te::gm::Envelope::isValid(), line, te::gm::LineStringType, te::gm::MultiLineStringType, RemapToPlanar(), WorldTransformer::setMirroring(), and te::gm::LineString::setPoint().

double CalculateInitialX	(	const te::gm::Envelope &	env,
		const double &	verticalLineInitial,
		const double &	verticalLineGap
	)

Calculates the initial coordinate in x-axis.

Parameters

env	Bounding rect in world coordinate system.
verticalLineInitial	Initial coordinate in y-axis.
verticalLineGap	Distance between two grid lines.

Returns: The initial value in the x-axis.

Definition at line 564 of file qt/widgets/canvas/Grid.cpp.

References te::gm::Envelope::getLowerLeftX().

Referenced by CalculateVerticalLines().

double CalculateInitialY	(	const te::gm::Envelope &	env,
		const double &	horizontalLineInitial,
		const double &	horizontalLineGap
	)

Calculates the initial coordinate in y-axis.

Parameters

env	Bounding rect in world coordinate system.
horizontalLineInitial	Initial coordinate in X-axis.
horizontalLineGap	Distance between two grid lines.

Returns: The initial value in the y-axis.

Definition at line 592 of file qt/widgets/canvas/Grid.cpp.

References te::gm::Envelope::getLowerLeftY().

Referenced by CalculateHorizontalLines().

std::vector<te::gm::LineString> CalculateVerticalLines	(	const te::gm::Envelope &	planarBox,
		const double &	verticalLineInitial,
		const double &	verticalLineGap,
		const int &	maxGaps
	)

Calculates the lines in y-axis.

Parameters

planarBox	Box in world coordinate system (MUST BE in a planar coordinate system).
verticalLineInitial	Inital Y.
verticalLineGap	Distance between lines in y-axis.
maxGaps	Maximum number of lines to be presented on the grid.

Returns: A vector with the calculated lines in y-axis.

Definition at line 622 of file qt/widgets/canvas/Grid.cpp.

References CalculateInitialX(), te::gm::Envelope::getLowerLeftX(), te::gm::Envelope::getLowerLeftY(), te::gm::Envelope::getUpperRightX(), te::gm::Envelope::getUpperRightY(), te::gm::Envelope::getWidth(), te::gm::LineStringType, and te::gm::LineString::setPoint().

Referenced by te::qt::widgets::Grid::makeGeographicGrid(), and te::qt::widgets::Grid::makePlanarGrid().

std::vector<te::gm::LineString> CalculateVerticalLines	(	const te::gm::Envelope &	planarBox,
		const te::gm::Envelope &	geographicBox,
		const te::gm::Envelope &	boxMM,
		const double &	verticalLineInitial,
		const double &	verticalLineGap,
		const int &	maxGaps,
		const int &	planarSRID,
		const int &	geodesicSRID
	)

Calculates the vertical lines of the grid.

Parameters

planarBox	Bounding rectangle in planar coordinate system.
geographicBox	Bounding rectangle in geographic coordinates.
boxMM	Bounding rectangle of the device in pixel coordinate system.
verticalLineInitial	Initial coordinate.
verticalLineGap	Difference between the coordinates.
maxGaps	Maximum number of lines to be created.
planarSRID	Srid of a planar coordinate system.
geodesicSRID	Srid of a geographic coordinate system.

Returns: A vector with the created lines.

Note: If display is in a geographic coordinate system, planarBox MUST be an invalid rectangle and planarSRID MUST be the value -1. If both weren't correctly passed, this method may not work properly.

Definition at line 1208 of file qt/widgets/canvas/Grid.cpp.

References CalculateInitialX(), ConvertToMillimeter(), te::mnt::CreateLine, te::gm::GeometryCollection::getGeometryN(), te::gm::GetGeomFromEnvelope(), te::gm::Envelope::getLowerLeftX(), te::gm::Envelope::getLowerLeftY(), te::gm::GeometryCollection::getNumGeometries(), te::gm::Geometry::getSRID(), GetTransformGeo(), te::gm::Envelope::getUpperRightX(), te::gm::Envelope::getUpperRightY(), te::gm::Geometry::intersection(), te::gm::Envelope::isValid(), line, te::gm::LineStringType, te::gm::MultiLineStringType, RemapToPlanar(), WorldTransformer::setMirroring(), and te::gm::LineString::setPoint().

std::string ConvertDecimalToDegree	(	const double &	value,
		bool	bDegrees,
		bool	bMinutes,
		bool	bSeconds,
		int	precision
	)

Converts a value to a degree-minute-second description. For presentation purposes.

Parameters

value	Value to be converted. (MUST be in a geodesic coordinate system)
bDegrees	True to degrees section to be presented, false otherwise.
bMinutes	True to minutes section to be presented, false otherwise.
bSeconds	True to seconds section to be presented, false otherwise.
precision	Number of the decimals to be used.

Returns: Returns a text formatted as a degree-minute-second value.

Definition at line 1577 of file qt/widgets/canvas/Grid.cpp.

References te::common::Convert2String(), and RoundNumber().

Referenced by GetTextsPixmap().

void ConvertToMillimeter	(	const WorldTransformer &	transf,
		te::gm::LineString *	line
	)

Converts the line from world coordinate system to device coordinate system.

Parameters

transf	WorldTransformer previously created with the both world rectangle and device rectangle.
line	The line to be converted.

Definition at line 1162 of file qt/widgets/canvas/Grid.cpp.

References te::gm::LineString::computeMBR(), te::gm::LineString::getNPoints(), te::gm::LineString::getX(), te::gm::LineString::getY(), te::gm::LineString::setPoint(), te::gm::LineString::setSRID(), WorldTransformer::system1Tosystem2(), and TE_UNKNOWN_SRS.

Referenced by CalculateHorizontalLines(), and CalculateVerticalLines().

void DrawAllLines	(	WorldTransformer	transf,
		QPainter *	painter,
		const std::vector< te::gm::LineString > &	vlines,
		const std::vector< te::gm::LineString > &	hlines,
		const QFont &	font
	)

Draw horizontal and vertical lines.

Parameters

transf	The world transformer being used.
painter	The painter being used.
vlines	Set of vertical lines.
hlines	Set of horizontal lines.
font	The font to be used to render the texts.

Definition at line 868 of file qt/widgets/canvas/Grid.cpp.

References DrawLines(), and GetTextDimensions().

Referenced by te::qt::widgets::Grid::redraw().

void DrawLine	(	QPainter *	painter,
		QLineF &	line,
		const int &	txtOffSet,
		const bool &	vertical
	)

Draws the line using the giving painter.

Parameters

painter	The painter being used for rendering.
line	The line to be drawed.
txtOffSet	Position of the text.
vertical	Sinalizes that the line analysed is a vertical or horizontal line.

Definition at line 784 of file qt/widgets/canvas/Grid.cpp.

References te::qt::widgets::MillimetersToPixels().

Referenced by DrawLines().

void DrawLines	(	WorldTransformer	transf,
		QPainter *	painter,
		const std::vector< te::gm::LineString > &	lines,
		const int &	txtOffSet,
		const bool &	vertical
	)

Draws lines on painter.

Parameters

transf	The world transformer being used.
painter	The painter being used.
lines	The set of lines to be drawed
txtOffSet	Position of the text.
vertical	Sinalizes that the lines being analysed are vertical or horizontal lines.

Definition at line 833 of file qt/widgets/canvas/Grid.cpp.

References DrawLine(), line, and WorldTransformer::system1Tosystem2().

Referenced by DrawAllLines().

void DrawTexts	(	WorldTransformer	transf,
		QPainter *	painter,
		const std::vector< te::gm::LineString > &	vlines,
		const std::vector< te::gm::LineString > &	hlines,
		const QFont &	font
	)

Draws all texts of the lines on the grid.

Parameters

transf	The world transformer being used.
painter	The painter being used.
vlines	Set of vertical lines.
hlines	Set of vertical lines.
font	The font being used to draw texts.

Definition at line 1023 of file qt/widgets/canvas/Grid.cpp.

References dx, GetTextsPixmap(), and te::qt::widgets::MillimetersToPixels().

Referenced by te::qt::widgets::Grid::redraw().

void GetGeographicCoordLine	(	WorldTransformer	transf,
		te::gm::LineString &	line,
		const int &	geoSRID
	)

Transforms a line from a coordinate system to another.

Parameters

transf	WorldTransformer created with a planar bounding rectangle and the device bounding rectangle.
line	A line in device coordinate system.
geoSRID	The srid of the geodesic coordinate system.

Definition at line 1532 of file qt/widgets/canvas/Grid.cpp.

References te::gm::LineString::getNPoints(), te::gm::LineString::getPointN(), te::gm::LineString::setPointN(), WorldTransformer::system2Tosystem1(), and te::gm::LineString::transform().

Referenced by GetTextsPixmap().

double GetInitialCoord	(	const double &	initialCoord,
		const double &	distance,
		double &	gap
	)

Calculates a suggar initial coordinate in world coordinate system.

Parameters

	initialCoord	Initial coordinate.
	distance	The distance to be used.
[out]	gap	The value of the distance between lines in axis.

Returns: A suggar value for initial coordinate.

Definition at line 702 of file qt/widgets/canvas/Grid.cpp.

Referenced by te::qt::widgets::Grid::makeGeographicGrid(), and te::qt::widgets::Grid::makePlanarGrid().

void GetTextDimensions	(	const QFont	font,
		const QString &	text,
		int &	w,
		int &	h
	)

Returns the dimensions of a text giving a font.

Parameters

	font	The font being used for the texts.
	text	The text analysed.
[out]	w	The calculated text width.
[out]	h	The calculated text height.

Definition at line 765 of file qt/widgets/canvas/Grid.cpp.

Referenced by DrawAllLines(), GetTextPixmap(), and GetTextsPixmap().

QPixmap* GetTextPixmap	(	const QString &	txt,
		const QFont &	font,
		const QPen &	pen
	)

Returns a pixmap with the text.

Parameters

txt	The text to be drawed.
font	The font to be used.
pen	The pen being used.

Returns: A pixmap with text and dimensions calculated based on font parameter.

Definition at line 891 of file qt/widgets/canvas/Grid.cpp.

References GetTextDimensions(), and p.

Referenced by GetTextsPixmap().

QPixmap* GetTextsPixmap	(	WorldTransformer	transf,
		const std::vector< te::gm::LineString > &	lines,
		const QFont &	font,
		const QPen &	pen,
		const bool &	vertical,
		const QSize &	displayDimensions
	)

Returns an image with the headers of the grid.

Parameters

transf	The world transformer being used.
lines	The calculated grid lines.
font	The font to be used.
pen	The pen being used.
vertical	Sinalizes that the lines being analysed are vertical or horizontal lines.
displayDimensions	Dimensions of the canvas being used.

Returns: A pixmap with the header, over some axis, of the grid.

Definition at line 939 of file qt/widgets/canvas/Grid.cpp.

References col, GetTextDimensions(), GetTextPixmap(), p, and WorldTransformer::system1Tosystem2().

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

QPixmap* GetTextsPixmap	(	WorldTransformer	transf,
		const std::vector< te::gm::LineString > &	lines,
		QPainter &	painter,
		const bool &	vertical,
		const bool &	top,
		const int &	geoSrid
	)

Returns a pixmap with the values of the coordinates to be presented.

Parameters

transf	WorldTransformer object previously created.
lines	The lines that are being processed
painter	A QPainter object previously configured with the the color and font to use on presentation.
vertical	Flag that sinalyzes if the pixmap is for the vertical lines or horizontal. (Depends on what lines are passed)
top	Flag that sinalyzes in wich side will be placed the pixmap: true -> top and right, false -> bottom and left.
geoSrid	The srid of the geodesic coordinate system to be used.

Returns: The pixmap to be placed on top, bottom, left or right position.

Note: If the display is in a geodesic coordinate the geoSrid MUST be defined as a valor different of -1.

Definition at line 1649 of file qt/widgets/canvas/Grid.cpp.

References ConvertDecimalToDegree(), GetGeographicCoordLine(), te::gm::LineString::getNPoints(), te::gm::LineString::getPointN(), GetTextDimensions(), GetTextPixmap(), line, p, and WorldTransformer::system2Tosystem1().

WorldTransformer GetTransformGeo	(	te::gm::Envelope	boxgeo,
		te::gm::Envelope	boxmm
	)

Giving a box in world coordinate system and another in device coordinates, returns the WorldTransformer.

Parameters

boxgeo	Bounding rectangle in world coordinate system.
boxmm	Bounding rectangle in device coordinate system.

Returns: The WorldTransformer object.

Definition at line 533 of file qt/widgets/canvas/Grid.cpp.

References te::gm::Envelope::isValid(), and WorldTransformer::setTransformationParameters().

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

int PlanarSRID ( const te::gm::Envelope & worldBox )

Giving a box in world coordinate system, calculates the better SRID we must use to transform.

Parameters

worldBox Box in world coordinate system.

Returns: The id of the projection we must use to transform.

Definition at line 740 of file qt/widgets/canvas/Grid.cpp.

References te::map::CalculatePlanarZone(), te::gm::Envelope::getCenter(), te::gm::Coord2D::getY(), and TE_UNKNOWN_SRS.

Referenced by ToPlanar().

std::string Proj4DescToGeodesic ( )

Returns a default description for a geodesic coordinate system.

Returns: Default srid for the geodesic coordinate system. (EPSG:4326)

Definition at line 1400 of file qt/widgets/canvas/Grid.cpp.

Referenced by ToGeographic().

void RemapToPlanar	(	te::gm::LineString *	line,
		int	sourceSRID,
		int	planarSRID
	)

Transforms a LineString from a coordinate system to another.

Parameters

line	Line to be converted.
sourceSRID	Srid of the line.
planarSRID	Srid of the output.

Definition at line 1104 of file qt/widgets/canvas/Grid.cpp.

References te::gm::LineString::computeMBR(), te::gm::LineString::getNPoints(), te::gm::LineString::getX(), te::gm::LineString::getY(), te::gm::LineString::makeEmpty(), te::gm::LineString::setNumCoordinates(), te::gm::LineString::setPoint(), and te::gm::LineString::setSRID().

Referenced by CalculateHorizontalLines(), and CalculateVerticalLines().

int RoundNumber ( const double & value )

Retuns an rounded number. If the decimal part of number is less than .5, rounds to the floor, otherwise it will be rounded up.

Parameters

value Value to be calculated.

Returns: The rounded number.

Definition at line 1554 of file qt/widgets/canvas/Grid.cpp.

Referenced by ConvertDecimalToDegree().

void SetSRID	(	std::vector< te::gm::LineString > &	lines,
		const int &	srid
	)

Sets the srid of a set of lines.

Parameters

lines	The lines to be updated.
srid	The new srid to be used.

Note: This method just sets the srid of the lines. It DOES NOT make any coordinate transformations.

Definition at line 1746 of file qt/widgets/canvas/Grid.cpp.

Referenced by te::qt::widgets::Grid::redraw().

int ToGeographic	(	const te::gm::Envelope &	worldBox,
		int	sourceSRID
	)

Calculates the srid for the better geodesic coordinate system, given a bounding rectangle and it's srid.

Parameters

worldBox	Bounding rectangle in a planar coordinate system.
sourceSRID	The srid of the input bounding rectangle.

Returns: Srid of the geodesic coordinate.

Definition at line 1498 of file qt/widgets/canvas/Grid.cpp.

References te::common::Convert2UCase(), te::common::Singleton< SpatialReferenceSystemManager >::getInstance(), te::gm::Envelope::isValid(), Proj4DescToGeodesic(), TE_UNKNOWN_SRS, and UnitMeasure().

Referenced by te::qt::widgets::Grid::initialize().

int ToPlanar	(	const te::gm::Envelope &	worldBox,
		int	sourceSRID
	)

Calculates the srid for the better planar coordinate system, given a bounding rectangle and it's srid.

Parameters

worldBox	Bounding rectangle in a geodesic coordinate system.
sourceSRID	The srid of the input bounding rectangle.

Returns: Srid of the better planar coordinate system found.

Definition at line 1470 of file qt/widgets/canvas/Grid.cpp.

References te::common::Convert2UCase(), te::gm::Envelope::isValid(), PlanarSRID(), TE_UNKNOWN_SRS, and UnitMeasure().

Referenced by te::qt::widgets::Grid::initialize(), and te::qt::widgets::Grid::makeGeographicGrid().

te::common::UnitOfMeasurePtr UnitMeasure ( int srid )

Returns the unit of measure of the given srid.

Parameters

srid	Srid of interest.

Returns: The corresponding unit of measure.

Definition at line 1419 of file qt/widgets/canvas/Grid.cpp.

References te::common::Singleton< SpatialReferenceSystemManager >::getInstance().

Referenced by ToGeographic(), and ToPlanar().

te::gm::Envelope WorldBoxTo	(	const te::gm::Envelope &	worldBox,
		const unsigned int &	sourceSRID,
		const unsigned int &	targetSRID
	)

Transforms the coordinates of an envelope from a system of coordinates to another.

Parameters

worldBox	Bounding rectangle.
sourceSRID	Srid of the bounding rectangle.
targetSRID	Srid of the new bounding rectangle.

Returns: The bounding rectangle in the targetSRID coordinate system.

Definition at line 1077 of file qt/widgets/canvas/Grid.cpp.

References te::common::Singleton< SpatialReferenceSystemManager >::getInstance(), te::gm::Envelope::isValid(), and te::gm::Envelope::transform().

Referenced by te::qt::widgets::Grid::makeGeographicGrid().

te::gm::Envelope WorldBoxTo	(	const te::gm::Envelope &	worldBox,
		int	sourceSRID,
		int	targetSRID
	)

Transforms a bounding rectangle from a srid into another one.

Parameters

worldBox	Bounding rectangle in some coordinate system.
sourceSRID	The srid of the rectangle.
targetSRID	The srid of the output rectangle.

Returns: A bounding rectangle in the targetSRID coordinate system, or an invalid bounding rectangle, if the operation couldn't be done.

Definition at line 1442 of file qt/widgets/canvas/Grid.cpp.

References te::common::Singleton< SpatialReferenceSystemManager >::getInstance(), te::gm::Envelope::isValid(), and te::gm::Envelope::transform().

Classes

Functions

Function Documentation