QgsQuickCoordinateTransformer Class Reference

Helper class for transform of coordinates (QgsPoint) to a different coordinate reference system. More...

#include <qgsquickcoordinatetransformer.h>

Inheritance diagram for QgsQuickCoordinateTransformer:

Signals
void	destinationCrsChanged ()
	Destination CRS.
void	projectedPositionChanged ()
	Projected (destination) position (in destination CRS)
void	sourceCrsChanged ()
	Source CRS, default 4326.
void	sourcePositionChanged ()
	Source position (in source CRS)
void	transformContextChanged ()
	Transformation context, can be set from QgsQuickMapSettings::transformContext()

Public Member Functions
	QgsQuickCoordinateTransformer (QObject *parent=nullptr)
	Creates new coordinate transformer.
QgsCoordinateReferenceSystem	destinationCrs () const
	Destination CRS.
QgsPoint	projectedPosition () const
	Projected (destination) position (in destination CRS)
void	setDestinationCrs (const QgsCoordinateReferenceSystem &destinationCrs)
	Destination CRS.
void	setSourceCrs (const QgsCoordinateReferenceSystem &sourceCrs)
	Source CRS, default 4326.
void	setSourcePosition (const QgsPoint &sourcePosition)
	Source position (in source CRS)
void	setTransformContext (const QgsCoordinateTransformContext &context)
	Transformation context, can be set from QgsQuickMapSettings::transformContext()
QgsCoordinateReferenceSystem	sourceCrs () const
	Source CRS, default 4326.
QgsPoint	sourcePosition () const
	Source position (in source CRS)
QgsCoordinateTransformContext	transformContext () const
	Transformation context, can be set from QgsQuickMapSettings::transformContext()

Properties
QgsCoordinateReferenceSystem	destinationCrs
	Destination CRS.
QgsPoint	projectedPosition
	Projected (destination) position (in destination CRS)
QgsCoordinateReferenceSystem	sourceCrs
	Source CRS, default 4326.
QgsPoint	sourcePosition
	Source position (in source CRS)
QgsCoordinateTransformContext	transformContext
	Transformation context, can be set from QgsQuickMapSettings::transformContext()

Detailed Description

Helper class for transform of coordinates (QgsPoint) to a different coordinate reference system.

It requires connection of transformation context from mapSettings, source position and source CRS to calculate projected position in desired destination CRS.

Note

QML Type: CoordinateTransformer

Since

QGIS 3.4

Definition at line 40 of file qgsquickcoordinatetransformer.h.

Constructor & Destructor Documentation

QgsQuickCoordinateTransformer()

QgsQuickCoordinateTransformer::QgsQuickCoordinateTransformer ( QObject *  parent = nullptr )

explicit

Creates new coordinate transformer.

Definition at line 19 of file qgsquickcoordinatetransformer.cpp.

Member Function Documentation

destinationCrs()

QgsCoordinateReferenceSystem QgsQuickCoordinateTransformer::destinationCrs

(

)

const

Destination CRS.

Definition at line 46 of file qgsquickcoordinatetransformer.cpp.

destinationCrsChanged

void QgsQuickCoordinateTransformer::destinationCrsChanged ( )

signal

Destination CRS.

projectedPosition()

QgsPoint QgsQuickCoordinateTransformer::projectedPosition

(

)

const

Projected (destination) position (in destination CRS)

Definition at line 25 of file qgsquickcoordinatetransformer.cpp.

projectedPositionChanged

void QgsQuickCoordinateTransformer::projectedPositionChanged ( )

signal

Projected (destination) position (in destination CRS)

setDestinationCrs()

void QgsQuickCoordinateTransformer::setDestinationCrs

(

const QgsCoordinateReferenceSystem &

destinationCrs

)

Destination CRS.

Definition at line 51 of file qgsquickcoordinatetransformer.cpp.

setSourceCrs()

void QgsQuickCoordinateTransformer::setSourceCrs

(

const QgsCoordinateReferenceSystem &

sourceCrs

)

Source CRS, default 4326.

Definition at line 66 of file qgsquickcoordinatetransformer.cpp.

setSourcePosition()

void QgsQuickCoordinateTransformer::setSourcePosition

(

const QgsPoint &

sourcePosition

)

Source position (in source CRS)

Definition at line 35 of file qgsquickcoordinatetransformer.cpp.

setTransformContext()

void QgsQuickCoordinateTransformer::setTransformContext

(

const QgsCoordinateTransformContext &

context

)

Transformation context, can be set from QgsQuickMapSettings::transformContext()

Definition at line 77 of file qgsquickcoordinatetransformer.cpp.

sourceCrs()

QgsCoordinateReferenceSystem QgsQuickCoordinateTransformer::sourceCrs

(

)

const

Source CRS, default 4326.

Definition at line 61 of file qgsquickcoordinatetransformer.cpp.

sourceCrsChanged

void QgsQuickCoordinateTransformer::sourceCrsChanged ( )

signal

Source CRS, default 4326.

sourcePosition()

QgsPoint QgsQuickCoordinateTransformer::sourcePosition

(

)

const

Source position (in source CRS)

Definition at line 30 of file qgsquickcoordinatetransformer.cpp.

sourcePositionChanged

void QgsQuickCoordinateTransformer::sourcePositionChanged ( )

signal

Source position (in source CRS)

transformContext()

QgsCoordinateTransformContext QgsQuickCoordinateTransformer::transformContext

(

)

const

Transformation context, can be set from QgsQuickMapSettings::transformContext()

Definition at line 83 of file qgsquickcoordinatetransformer.cpp.

transformContextChanged

void QgsQuickCoordinateTransformer::transformContextChanged ( )

signal

Transformation context, can be set from QgsQuickMapSettings::transformContext()

Property Documentation

destinationCrs

QgsCoordinateReferenceSystem QgsQuickCoordinateTransformer::destinationCrs

readwrite

Destination CRS.

Definition at line 51 of file qgsquickcoordinatetransformer.h.

projectedPosition

QgsPoint QgsQuickCoordinateTransformer::projectedPosition

read

Projected (destination) position (in destination CRS)

Definition at line 45 of file qgsquickcoordinatetransformer.h.

sourceCrs

QgsCoordinateReferenceSystem QgsQuickCoordinateTransformer::sourceCrs

readwrite

Source CRS, default 4326.

Definition at line 54 of file qgsquickcoordinatetransformer.h.

sourcePosition

QgsPoint QgsQuickCoordinateTransformer::sourcePosition

readwrite

Source position (in source CRS)

Definition at line 48 of file qgsquickcoordinatetransformer.h.

transformContext

QgsCoordinateTransformContext QgsQuickCoordinateTransformer::transformContext

readwrite

Transformation context, can be set from QgsQuickMapSettings::transformContext()

Definition at line 57 of file qgsquickcoordinatetransformer.h.

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The documentation for this class was generated from the following files:

• /home/fischer/src/qgis-3.38/src/quickgui/qgsquickcoordinatetransformer.h
• /home/fischer/src/qgis-3.38/src/quickgui/qgsquickcoordinatetransformer.cpp