QGIS API Documentation
3.0.2-Girona (307d082)
src
core
qgscoordinatetransformcontext.h
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/***************************************************************************
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qgscoordinatetransformcontext.h
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-------------------------------
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begin : November 2017
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copyright : (C) 2017 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 QGSCOORDINATETRANSFORMCONTEXT_H
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#define QGSCOORDINATETRANSFORMCONTEXT_H
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#include "qgis_core.h"
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#include "
qgis.h
"
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#include "
qgsdatumtransform.h
"
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class
QgsCoordinateReferenceSystem
;
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class
QgsReadWriteContext
;
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class
QgsCoordinateTransformContextPrivate;
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class
QDomElement;
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/***************************************************************************
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* This class is considered CRITICAL and any change MUST be accompanied with
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* full unit tests in testqgsfeature.cpp.
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* See details in QEP #17
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****************************************************************************/
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class
CORE_EXPORT
QgsCoordinateTransformContext
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{
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public
:
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QgsCoordinateTransformContext
();
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~
QgsCoordinateTransformContext
();
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QgsCoordinateTransformContext
(
const
QgsCoordinateTransformContext
&rhs );
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QgsCoordinateTransformContext
&operator=(
const
QgsCoordinateTransformContext
&rhs )
SIP_SKIP
;
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void
clear();
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#if 0
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//singlesourcedest
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QMap<QString, int> sourceDatumTransforms()
const
;
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bool
addSourceDatumTransform(
const
QgsCoordinateReferenceSystem
&crs,
int
transform );
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void
removeSourceDatumTransform(
const
QgsCoordinateReferenceSystem
&crs );
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QMap< QString, int > destinationDatumTransforms()
const
;
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bool
addDestinationDatumTransform(
const
QgsCoordinateReferenceSystem
&crs,
int
transform );
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void
removeDestinationDatumTransform(
const
QgsCoordinateReferenceSystem
&crs );
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#endif
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QMap< QPair< QString, QString>,
QgsDatumTransform::TransformPair
> sourceDestinationDatumTransforms()
const
;
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bool
addSourceDestinationDatumTransform(
const
QgsCoordinateReferenceSystem
&sourceCrs,
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const
QgsCoordinateReferenceSystem
&destinationCrs,
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int
sourceTransformId,
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int
destinationTransformId );
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void
removeSourceDestinationDatumTransform(
const
QgsCoordinateReferenceSystem
&sourceCrs,
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const
QgsCoordinateReferenceSystem
&destinationCrs );
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bool
hasTransform(
const
QgsCoordinateReferenceSystem
&source,
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const
QgsCoordinateReferenceSystem
&destination )
const
;
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QgsDatumTransform::TransformPair
calculateDatumTransforms(
const
QgsCoordinateReferenceSystem
&source,
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const
QgsCoordinateReferenceSystem
&destination )
const
;
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bool
readXml(
const
QDomElement &element,
const
QgsReadWriteContext
&context, QStringList &missingTransforms
SIP_OUT
);
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void
writeXml( QDomElement &element,
const
QgsReadWriteContext
&context )
const
;
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void
readSettings();
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void
writeSettings();
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private
:
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QExplicitlySharedDataPointer<QgsCoordinateTransformContextPrivate> d;
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};
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#endif // QGSCOORDINATETRANSFORMCONTEXT_H
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QgsReadWriteContext
The class is used as a container of context for various read/write operations on other objects...
Definition:
qgsreadwritecontext.h:29
qgsdatumtransform.h
SIP_SKIP
#define SIP_SKIP
Definition:
qgis_sip.h:119
QgsCoordinateTransformContext
Contains information about the context in which a coordinate transform is executed.
Definition:
qgscoordinatetransformcontext.h:62
QgsDatumTransform::TransformPair
Contains datum transform information.
Definition:
qgsdatumtransform.h:44
SIP_OUT
#define SIP_OUT
Definition:
qgis_sip.h:51
QgsCoordinateReferenceSystem
This class represents a coordinate reference system (CRS).
Definition:
qgscoordinatereferencesystem.h:189
qgis.h
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