QGIS API Documentation
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src
core
proj
qgscoordinatereferencesystemregistry.h
Go to the documentation of this file.
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/***************************************************************************
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qgscoordinatereferencesystemregistry.h
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-------------------
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begin : January 2021
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copyright : (C) 2021 by Nyall Dawson
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email : nyall dot dawson at gmail dot com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSCOORDINATEREFERENCESYSTEMREGISTRY_H
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#define QGSCOORDINATEREFERENCESYSTEMREGISTRY_H
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#include <QObject>
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#include <QMap>
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#include "
qgscoordinatereferencesystem.h
"
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class
QgsCelestialBody
;
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class
QgsProjOperation
;
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class
CORE_EXPORT
QgsCoordinateReferenceSystemRegistry
:
public
QObject
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{
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Q_OBJECT
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public
:
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explicit
QgsCoordinateReferenceSystemRegistry
( QObject *parent =
nullptr
);
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~QgsCoordinateReferenceSystemRegistry
();
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class
UserCrsDetails
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{
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public
:
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long
id
= -1;
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QString
name
;
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QString
proj
;
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QString
wkt
;
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QgsCoordinateReferenceSystem
crs
;
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};
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QList< QgsCoordinateReferenceSystemRegistry::UserCrsDetails > userCrsList()
const
;
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long
addUserCrs(
const
QgsCoordinateReferenceSystem
&
crs
,
const
QString &name,
Qgis::CrsDefinitionFormat
nativeFormat =
Qgis::CrsDefinitionFormat::Wkt
);
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bool
updateUserCrs(
long
id
,
const
QgsCoordinateReferenceSystem
&
crs
,
const
QString &name,
Qgis::CrsDefinitionFormat
nativeFormat =
Qgis::CrsDefinitionFormat::Wkt
);
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bool
removeUserCrs(
long
id
);
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QMap< QString, QgsProjOperation > projOperations()
const
;
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QList< QgsCelestialBody > celestialBodies()
const
;
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signals:
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void
userCrsChanged
(
const
QString &
id
);
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void
userCrsAdded
(
const
QString &
id
);
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void
userCrsRemoved
(
long
id
);
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void
crsDefinitionsChanged
();
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private
:
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bool
insertProjection(
const
QString &projectionAcronym );
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mutable
QList< QgsCelestialBody > mCelestialBodies;
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mutable
QMap< QString, QgsProjOperation > mProjOperations;
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};
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#endif
// QGSCOORDINATEREFERENCESYSTEMREGISTRY_H
Qgis::CrsDefinitionFormat
CrsDefinitionFormat
CRS definition formats.
Definition
qgis.h:1857
Qgis::CrsDefinitionFormat::Wkt
@ Wkt
WKT format (always recommended over proj string format)
QgsCelestialBody
Contains information about a celestial body.
Definition
qgscelestialbody.h:32
QgsCoordinateReferenceSystemRegistry::UserCrsDetails
Contains details of a custom (user defined) CRS.
Definition
qgscoordinatereferencesystemregistry.h:57
QgsCoordinateReferenceSystemRegistry::UserCrsDetails::crs
QgsCoordinateReferenceSystem crs
QgsCoordinateReferenceSystem object representing the user-defined CRS.
Definition
qgscoordinatereferencesystemregistry.h:76
QgsCoordinateReferenceSystemRegistry::UserCrsDetails::proj
QString proj
PROJ string definition of CRS.
Definition
qgscoordinatereferencesystemregistry.h:67
QgsCoordinateReferenceSystemRegistry::UserCrsDetails::wkt
QString wkt
WKT definition of CRS.
Definition
qgscoordinatereferencesystemregistry.h:73
QgsCoordinateReferenceSystemRegistry::UserCrsDetails::name
QString name
CRS name (or description)
Definition
qgscoordinatereferencesystemregistry.h:64
QgsCoordinateReferenceSystemRegistry
A registry for known coordinate reference system (CRS) definitions, including any user-defined CRSes.
Definition
qgscoordinatereferencesystemregistry.h:40
QgsCoordinateReferenceSystemRegistry::userCrsAdded
void userCrsAdded(const QString &id)
Emitted whenever a new user CRS definition is added.
QgsCoordinateReferenceSystemRegistry::userCrsChanged
void userCrsChanged(const QString &id)
Emitted whenever an existing user CRS definition is changed.
QgsCoordinateReferenceSystemRegistry::userCrsRemoved
void userCrsRemoved(long id)
Emitted when the user CRS with matching id is removed from the database.
QgsCoordinateReferenceSystemRegistry::crsDefinitionsChanged
void crsDefinitionsChanged()
Emitted whenever an operation has caused any of the known CRS definitions (including user-defined CRS...
QgsCoordinateReferenceSystemRegistry::~QgsCoordinateReferenceSystemRegistry
~QgsCoordinateReferenceSystemRegistry()
QgsCoordinateReferenceSystem
This class represents a coordinate reference system (CRS).
Definition
qgscoordinatereferencesystem.h:212
QgsProjOperation
Contains information about a PROJ operation.
Definition
qgsprojoperation.h:31
qgscoordinatereferencesystem.h
crs
const QgsCoordinateReferenceSystem & crs
Definition
qgswfsgetfeature.cpp:53
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