QGIS API Documentation  2.18.21-Las Palmas (9fba24a)
Classes | Public Member Functions | Protected Attributes | List of all members
QgsDatumTransformStore Class Reference

The QgsDatumTransformStore class keeps track of datum transformations as chosen by the user. More...

#include <qgsdatumtransformstore.h>


struct  Entry

Public Member Functions

 QgsDatumTransformStore (const QgsCoordinateReferenceSystem &destCrs)
void addEntry (const QString &layerId, const QString &srcAuthId, const QString &destAuthId, int srcDatumTransform, int destDatumTransform)
void clear ()
bool hasEntryForLayer (QgsMapLayer *layer) const
void readXML (const QDomNode &parentNode)
void setDestinationCrs (const QgsCoordinateReferenceSystem &destCrs)
const QgsCoordinateTransformtransformation (QgsMapLayer *layer) const
 Will return transform from layer's CRS to current destination CRS. More...
void writeXML (QDomNode &parentNode, QDomDocument &theDoc) const

Protected Attributes

QgsCoordinateReferenceSystem mDestCRS
QHash< QString, EntrymEntries
 key = layer ID More...

Detailed Description

The QgsDatumTransformStore class keeps track of datum transformations as chosen by the user.

added in 2.4

Definition at line 32 of file qgsdatumtransformstore.h.

Constructor & Destructor Documentation

◆ QgsDatumTransformStore()

QgsDatumTransformStore::QgsDatumTransformStore ( const QgsCoordinateReferenceSystem destCrs)

Definition at line 22 of file qgsdatumtransformstore.cpp.

Member Function Documentation

◆ addEntry()

void QgsDatumTransformStore::addEntry ( const QString layerId,
const QString srcAuthId,
const QString destAuthId,
int  srcDatumTransform,
int  destDatumTransform 

Definition at line 38 of file qgsdatumtransformstore.cpp.

◆ clear()

void QgsDatumTransformStore::clear ( )

Definition at line 27 of file qgsdatumtransformstore.cpp.

◆ hasEntryForLayer()

bool QgsDatumTransformStore::hasEntryForLayer ( QgsMapLayer layer) const

Definition at line 48 of file qgsdatumtransformstore.cpp.

◆ readXML()

void QgsDatumTransformStore::readXML ( const QDomNode parentNode)

Definition at line 77 of file qgsdatumtransformstore.cpp.

◆ setDestinationCrs()

void QgsDatumTransformStore::setDestinationCrs ( const QgsCoordinateReferenceSystem destCrs)

Definition at line 32 of file qgsdatumtransformstore.cpp.

◆ transformation()

const QgsCoordinateTransform * QgsDatumTransformStore::transformation ( QgsMapLayer layer) const

Will return transform from layer's CRS to current destination CRS.

Will emit datumTransformInfoRequested signal if the layer has no entry. Returns an instance from QgsCoordinateTransformCache

Definition at line 53 of file qgsdatumtransformstore.cpp.

◆ writeXML()

void QgsDatumTransformStore::writeXML ( QDomNode parentNode,
QDomDocument theDoc 
) const

Definition at line 105 of file qgsdatumtransformstore.cpp.

Member Data Documentation

◆ mDestCRS

QgsCoordinateReferenceSystem QgsDatumTransformStore::mDestCRS

Definition at line 64 of file qgsdatumtransformstore.h.

◆ mEntries

QHash< QString, Entry > QgsDatumTransformStore::mEntries

key = layer ID

Definition at line 67 of file qgsdatumtransformstore.h.

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