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https://github.com/qgis/QGIS.git
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Move all datum transform related methods to QgsDatumTransform
This commit is contained in:
Nyall Dawson
parent
e678bfa042
commit
f216b188d6
@ -935,9 +935,9 @@ plugins calling these methods will need to be updated.
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- 'theNode', 'theDoc' parameters in readXML and writeXML have been renamed to 'node' and 'document' respectively
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- readXML() and writeXML() have been removed.
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- initialize() was removed.
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- datumTransformations() now returns a list of QgsCoordinateTransform.TransformPair instead of a list of lists.
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- datumTransformString() was renamed to datumTransformToProj()
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- datumTransformCrsInfo() was renamed to datumTransformInfo(), and now returns a QgsCoordinateTransform.TransformInfo object.
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- datumTransformations() was moved to QgsDatumTransform, and now returns a list of QgsDatumTransform.TransformPair instead of a list of lists.
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- datumTransformString() was moved to QgsDatumTransform and renamed to datumTransformToProj()
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- datumTransformCrsInfo() was moved to QgsDatumTransform and renamed to datumTransformInfo(), and now returns a QgsDatumTransform.TransformInfo object.
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- sourceDatumTransform() was renamed to sourceDatumTransformId()
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- setSourceDatumTransform() was renamed to setSourceDatumTransformId()
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- destinationDatumTransform() was renamed to destinationDatumTransformId()
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@ -28,6 +28,10 @@ transforms coordinates from the layer's coordinate system to the map canvas.
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.. note::
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Since QGIS 3.0 QgsCoordinateReferenceSystem objects are implicitly shared.
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.. seealso:: :py:class:`QgsDatumTransform`
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.. seealso:: :py:class:`QgsCoordinateTransformContext`
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%End
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%TypeHeaderCode
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@ -252,47 +256,6 @@ otherwise points are transformed from destination to source CRS.
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bool isShortCircuited() const;
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%Docstring
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Returns true if the transform short circuits because the source and destination are equivalent.
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%End
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static QList< QgsDatumTransform::TransformPair > datumTransformations( const QgsCoordinateReferenceSystem &source, const QgsCoordinateReferenceSystem &destination );
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%Docstring
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Returns a list of datum transformations which are available for the given ``source`` and ``destination`` CRS.
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.. seealso:: :py:func:`datumTransformToProj()`
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.. seealso:: :py:func:`datumTransformInfo()`
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%End
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static QString datumTransformToProj( int datumTransformId );
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%Docstring
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Returns a proj string representing the specified ``datumTransformId`` datum transform ID.
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.. seealso:: :py:func:`datumTransformations()`
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.. seealso:: :py:func:`datumTransformInfo()`
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.. seealso:: :py:func:`projStringToDatumTransformId()`
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%End
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static int projStringToDatumTransformId( const QString &string );
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%Docstring
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Returns the datum transform ID corresponding to a specified proj ``string``.
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Returns -1 if matching datum ID was not found.
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.. seealso:: :py:func:`datumTransformToProj()`
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.. versionadded:: 3.0
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%End
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static QgsDatumTransform::TransformInfo datumTransformInfo( int datumTransformId );
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%Docstring
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Returns detailed information about the specified ``datumTransformId``.
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If ``datumTransformId`` was not a valid transform ID, a TransformInfo with TransformInfo.datumTransformId of
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-1 will be returned.
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.. seealso:: :py:func:`datumTransformations()`
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.. seealso:: :py:func:`datumTransformToProj()`
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%End
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int sourceDatumTransformId() const;
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@ -37,6 +37,11 @@ applies for destination CRS transforms set using addDestinationDatumTransform().
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QgsCoordinateTransformContext objects are implicitly shared.
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.. seealso:: :py:class:`QgsDatumTransform`
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.. seealso:: :py:class:`QgsCoordinateTransform`
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.. versionadded:: 3.0
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%End
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@ -8,11 +8,17 @@
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class QgsDatumTransform
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{
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%Docstring
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Contains methods and classes relating the datum transformations.
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.. seealso:: :py:class:`QgsCoordinateTransformContext`
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.. seealso:: :py:class:`QgsCoordinateTransform`
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.. versionadded:: 3.0
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%End
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@ -103,6 +109,46 @@ True if transform is deprecated
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%End
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};
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static QList< QgsDatumTransform::TransformPair > datumTransformations( const QgsCoordinateReferenceSystem &source, const QgsCoordinateReferenceSystem &destination );
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%Docstring
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Returns a list of datum transformations which are available for the given ``source`` and ``destination`` CRS.
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.. seealso:: :py:func:`datumTransformToProj()`
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.. seealso:: :py:func:`datumTransformInfo()`
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%End
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static QString datumTransformToProj( int datumTransformId );
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%Docstring
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Returns a proj string representing the specified ``datumTransformId`` datum transform ID.
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.. seealso:: :py:func:`datumTransformations()`
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.. seealso:: :py:func:`datumTransformInfo()`
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.. seealso:: :py:func:`projStringToDatumTransformId()`
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%End
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static int projStringToDatumTransformId( const QString &string );
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%Docstring
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Returns the datum transform ID corresponding to a specified proj ``string``.
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Returns -1 if matching datum ID was not found.
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.. seealso:: :py:func:`datumTransformToProj()`
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%End
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static QgsDatumTransform::TransformInfo datumTransformInfo( int datumTransformId );
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%Docstring
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Returns detailed information about the specified ``datumTransformId``.
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If ``datumTransformId`` was not a valid transform ID, a TransformInfo with TransformInfo.datumTransformId of
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-1 will be returned.
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.. seealso:: :py:func:`datumTransformations()`
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.. seealso:: :py:func:`datumTransformToProj()`
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%End
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};
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/************************************************************************
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@ -9151,7 +9151,7 @@ void QgisApp::projectCrsChanged()
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if ( !transformsToAskFor.contains( it.value()->crs() ) &&
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it.value()->crs() != QgsProject::instance()->crs() &&
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!QgsProject::instance()->transformContext().hasTransform( it.value()->crs(), QgsProject::instance()->crs() ) &&
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QgsCoordinateTransform::datumTransformations( it.value()->crs(), QgsProject::instance()->crs() ).count() > 1 )
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QgsDatumTransform::datumTransformations( it.value()->crs(), QgsProject::instance()->crs() ).count() > 1 )
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{
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transformsToAskFor.append( it.value()->crs() );
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}
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@ -110,7 +110,7 @@ QVariant QgsDatumTransformTableModel::data( const QModelIndex &index, int role )
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case SourceTransformColumn:
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if ( sourceTransform != -1 )
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{
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return QgsCoordinateTransform::datumTransformToProj( sourceTransform );
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return QgsDatumTransform::datumTransformToProj( sourceTransform );
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}
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break;
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case DestinationCrsColumn:
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@ -119,7 +119,7 @@ QVariant QgsDatumTransformTableModel::data( const QModelIndex &index, int role )
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case DestinationTransformColumn:
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if ( destinationTransform != -1 )
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{
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return QgsCoordinateTransform::datumTransformToProj( destinationTransform );
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return QgsDatumTransform::datumTransformToProj( destinationTransform );
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}
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break;
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default:
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@ -161,6 +161,7 @@ SET(QGIS_CORE_SRCS
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qgsdatasourceuri.cpp
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qgsdataprovider.cpp
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qgsdatetimestatisticalsummary.cpp
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qgsdatumtransform.cpp
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qgsdbfilterproxymodel.cpp
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qgsdefaultvalue.cpp
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qgsdiagramrenderer.cpp
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@ -700,97 +700,6 @@ const char *finder( const char *name )
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return proj.toUtf8();
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}
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QList< QgsDatumTransform::TransformPair > QgsCoordinateTransform::datumTransformations( const QgsCoordinateReferenceSystem &srcCRS, const QgsCoordinateReferenceSystem &destCRS )
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{
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QList< QgsDatumTransform::TransformPair > transformations;
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QString srcGeoId = srcCRS.geographicCrsAuthId();
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QString destGeoId = destCRS.geographicCrsAuthId();
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if ( srcGeoId.isEmpty() || destGeoId.isEmpty() )
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{
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return transformations;
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}
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QStringList srcSplit = srcGeoId.split( ':' );
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QStringList destSplit = destGeoId.split( ':' );
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if ( srcSplit.size() < 2 || destSplit.size() < 2 )
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{
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return transformations;
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}
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int srcAuthCode = srcSplit.at( 1 ).toInt();
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int destAuthCode = destSplit.at( 1 ).toInt();
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if ( srcAuthCode == destAuthCode )
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{
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return transformations; //crs have the same datum
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}
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QList<int> directTransforms;
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searchDatumTransform( QStringLiteral( "SELECT coord_op_code FROM tbl_datum_transform WHERE source_crs_code=%1 AND target_crs_code=%2 ORDER BY deprecated ASC,preferred DESC" ).arg( srcAuthCode ).arg( destAuthCode ),
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directTransforms );
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QList<int> reverseDirectTransforms;
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searchDatumTransform( QStringLiteral( "SELECT coord_op_code FROM tbl_datum_transform WHERE source_crs_code = %1 AND target_crs_code=%2 ORDER BY deprecated ASC,preferred DESC" ).arg( destAuthCode ).arg( srcAuthCode ),
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reverseDirectTransforms );
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QList<int> srcToWgs84;
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searchDatumTransform( QStringLiteral( "SELECT coord_op_code FROM tbl_datum_transform WHERE (source_crs_code=%1 AND target_crs_code=%2) OR (source_crs_code=%2 AND target_crs_code=%1) ORDER BY deprecated ASC,preferred DESC" ).arg( srcAuthCode ).arg( 4326 ),
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srcToWgs84 );
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QList<int> destToWgs84;
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searchDatumTransform( QStringLiteral( "SELECT coord_op_code FROM tbl_datum_transform WHERE (source_crs_code=%1 AND target_crs_code=%2) OR (source_crs_code=%2 AND target_crs_code=%1) ORDER BY deprecated ASC,preferred DESC" ).arg( destAuthCode ).arg( 4326 ),
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destToWgs84 );
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//add direct datum transformations
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for ( int transform : qgis::as_const( directTransforms ) )
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{
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transformations.push_back( QgsDatumTransform::TransformPair( transform, -1 ) );
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}
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//add direct datum transformations
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for ( int transform : qgis::as_const( directTransforms ) )
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{
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transformations.push_back( QgsDatumTransform::TransformPair( -1, transform ) );
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}
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for ( int srcTransform : qgis::as_const( srcToWgs84 ) )
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{
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for ( int destTransform : qgis::as_const( destToWgs84 ) )
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{
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transformations.push_back( QgsDatumTransform::TransformPair( srcTransform, destTransform ) );
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}
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}
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return transformations;
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}
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void QgsCoordinateTransform::searchDatumTransform( const QString &sql, QList< int > &transforms )
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{
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sqlite3_database_unique_ptr database;
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int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );
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if ( openResult != SQLITE_OK )
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{
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return;
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}
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sqlite3_statement_unique_ptr statement;
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int prepareRes;
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statement = database.prepare( sql, prepareRes );
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if ( prepareRes != SQLITE_OK )
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{
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return;
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}
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QString cOpCode;
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while ( statement.step() == SQLITE_ROW )
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{
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cOpCode = statement.columnAsText( 0 );
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transforms.push_back( cOpCode.toInt() );
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}
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}
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bool QgsCoordinateTransform::setFromCache( const QgsCoordinateReferenceSystem &src, const QgsCoordinateReferenceSystem &dest, int srcDatumTransform, int destDatumTransform )
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{
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if ( !src.isValid() || !dest.isValid() )
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@ -833,61 +742,6 @@ void QgsCoordinateTransform::addToCache()
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sCacheLock.unlock();
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}
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QString QgsCoordinateTransform::datumTransformToProj( int datumTransform )
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{
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return QgsCoordinateTransformPrivate::datumTransformString( datumTransform );
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}
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int QgsCoordinateTransform::projStringToDatumTransformId( const QString &string )
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{
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return QgsCoordinateTransformPrivate::transformIdFromString( string );
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}
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QgsDatumTransform::TransformInfo QgsCoordinateTransform::datumTransformInfo( int datumTransform )
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{
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QgsDatumTransform::TransformInfo info;
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sqlite3_database_unique_ptr database;
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int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );
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if ( openResult != SQLITE_OK )
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{
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return info;
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}
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sqlite3_statement_unique_ptr statement;
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QString sql = QStringLiteral( "SELECT epsg_nr,source_crs_code,target_crs_code,remarks,scope,preferred,deprecated FROM tbl_datum_transform WHERE coord_op_code=%1" ).arg( datumTransform );
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int prepareRes;
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statement = database.prepare( sql, prepareRes );
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if ( prepareRes != SQLITE_OK )
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{
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return info;
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}
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int srcCrsId, destCrsId;
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if ( statement.step() != SQLITE_ROW )
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{
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return info;
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}
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info.datumTransformId = datumTransform;
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info.epsgCode = statement.columnAsInt64( 0 );
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srcCrsId = statement.columnAsInt64( 1 );
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destCrsId = statement.columnAsInt64( 2 );
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info.remarks = statement.columnAsText( 3 );
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info.scope = statement.columnAsText( 4 );
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info.preferred = statement.columnAsInt64( 5 ) != 0;
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info.deprecated = statement.columnAsInt64( 6 ) != 0;
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QgsCoordinateReferenceSystem srcCrs = QgsCoordinateReferenceSystem::fromOgcWmsCrs( QStringLiteral( "EPSG:%1" ).arg( srcCrsId ) );
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info.sourceCrsDescription = srcCrs.description();
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info.sourceCrsAuthId = srcCrs.authid();
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QgsCoordinateReferenceSystem destCrs = QgsCoordinateReferenceSystem::fromOgcWmsCrs( QStringLiteral( "EPSG:%1" ).arg( destCrsId ) );
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info.destinationCrsDescription = destCrs.description();
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info.destinationCrsAuthId = destCrs.authid();
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return info;
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}
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int QgsCoordinateTransform::sourceDatumTransformId() const
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{
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return d->mSourceDatumTransform;
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@ -44,6 +44,9 @@ class QgsProject;
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* operations are from the perspective of the layer. For example, a forward transformation
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* transforms coordinates from the layer's coordinate system to the map canvas.
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* \note Since QGIS 3.0 QgsCoordinateReferenceSystem objects are implicitly shared.
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*
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* \see QgsDatumTransform
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* \see QgsCoordinateTransformContext
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*/
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class CORE_EXPORT QgsCoordinateTransform
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{
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@ -312,38 +315,6 @@ class CORE_EXPORT QgsCoordinateTransform
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*/
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bool isShortCircuited() const;
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/**
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* Returns a list of datum transformations which are available for the given \a source and \a destination CRS.
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* \see datumTransformToProj()
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* \see datumTransformInfo()
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*/
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static QList< QgsDatumTransform::TransformPair > datumTransformations( const QgsCoordinateReferenceSystem &source, const QgsCoordinateReferenceSystem &destination );
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/**
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* Returns a proj string representing the specified \a datumTransformId datum transform ID.
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* \see datumTransformations()
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* \see datumTransformInfo()
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* \see projStringToDatumTransformId()
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*/
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static QString datumTransformToProj( int datumTransformId );
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/**
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* Returns the datum transform ID corresponding to a specified proj \a string.
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* Returns -1 if matching datum ID was not found.
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* \see datumTransformToProj()
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* \since QGIS 3.0
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*/
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static int projStringToDatumTransformId( const QString &string );
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/**
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* Returns detailed information about the specified \a datumTransformId.
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* If \a datumTransformId was not a valid transform ID, a TransformInfo with TransformInfo::datumTransformId of
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* -1 will be returned.
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* \see datumTransformations()
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* \see datumTransformToProj()
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*/
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static QgsDatumTransform::TransformInfo datumTransformInfo( int datumTransformId );
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/**
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* Returns the ID of the datum transform to use when projecting from the source
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* CRS.
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@ -406,8 +377,6 @@ class CORE_EXPORT QgsCoordinateTransform
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private:
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static void searchDatumTransform( const QString &sql, QList< int > &transforms );
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mutable QExplicitlySharedDataPointer<QgsCoordinateTransformPrivate> d;
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//! Transform context
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@ -140,7 +140,7 @@ bool QgsCoordinateTransformPrivate::initialize()
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}
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if ( sourceDatumTransform != -1 )
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{
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mSourceProjString += ( ' ' + datumTransformString( sourceDatumTransform ) );
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mSourceProjString += ( ' ' + QgsDatumTransform::datumTransformToProj( sourceDatumTransform ) );
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}
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mDestProjString = mDestCRS.toProj4();
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@ -150,7 +150,7 @@ bool QgsCoordinateTransformPrivate::initialize()
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}
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if ( destDatumTransform != -1 )
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{
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mDestProjString += ( ' ' + datumTransformString( destDatumTransform ) );
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mDestProjString += ( ' ' + QgsDatumTransform::datumTransformToProj( destDatumTransform ) );
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}
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if ( !useDefaultDatumTransform )
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@ -284,114 +284,6 @@ QString QgsCoordinateTransformPrivate::stripDatumTransform( const QString &proj4
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return newProjString;
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}
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QString QgsCoordinateTransformPrivate::datumTransformString( int datumTransform )
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{
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QString transformString;
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sqlite3_database_unique_ptr database;
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int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );
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if ( openResult != SQLITE_OK )
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{
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return transformString;
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}
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sqlite3_statement_unique_ptr statement;
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QString sql = QStringLiteral( "SELECT coord_op_method_code,p1,p2,p3,p4,p5,p6,p7 FROM tbl_datum_transform WHERE coord_op_code=%1" ).arg( datumTransform );
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int prepareRes;
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statement = database.prepare( sql, prepareRes );
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if ( prepareRes != SQLITE_OK )
|
||||
{
|
||||
return transformString;
|
||||
}
|
||||
|
||||
if ( statement.step() == SQLITE_ROW )
|
||||
{
|
||||
//coord_op_methode_code
|
||||
int methodCode = statement.columnAsInt64( 0 );
|
||||
if ( methodCode == 9615 ) //ntv2
|
||||
{
|
||||
transformString = "+nadgrids=" + statement.columnAsText( 1 );
|
||||
}
|
||||
else if ( methodCode == 9603 || methodCode == 9606 || methodCode == 9607 )
|
||||
{
|
||||
transformString += QLatin1String( "+towgs84=" );
|
||||
double p1 = statement.columnAsDouble( 1 );
|
||||
double p2 = statement.columnAsDouble( 2 );
|
||||
double p3 = statement.columnAsDouble( 3 );
|
||||
double p4 = statement.columnAsDouble( 4 );
|
||||
double p5 = statement.columnAsDouble( 5 );
|
||||
double p6 = statement.columnAsDouble( 6 );
|
||||
double p7 = statement.columnAsDouble( 7 );
|
||||
if ( methodCode == 9603 ) //3 parameter transformation
|
||||
{
|
||||
transformString += QStringLiteral( "%1,%2,%3" ).arg( QString::number( p1 ), QString::number( p2 ), QString::number( p3 ) );
|
||||
}
|
||||
else //7 parameter transformation
|
||||
{
|
||||
transformString += QStringLiteral( "%1,%2,%3,%4,%5,%6,%7" ).arg( QString::number( p1 ), QString::number( p2 ), QString::number( p3 ), QString::number( p4 ), QString::number( p5 ), QString::number( p6 ), QString::number( p7 ) );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return transformString;
|
||||
}
|
||||
|
||||
int QgsCoordinateTransformPrivate::transformIdFromString( const QString &string )
|
||||
{
|
||||
sqlite3_database_unique_ptr database;
|
||||
int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );
|
||||
if ( openResult != SQLITE_OK )
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
sqlite3_statement_unique_ptr statement;
|
||||
QString sql = QStringLiteral( "SELECT coord_op_method_code,p1,p2,p3,p4,p5,p6,p7,coord_op_code FROM tbl_datum_transform" );
|
||||
int prepareRes;
|
||||
statement = database.prepare( sql, prepareRes );
|
||||
if ( prepareRes != SQLITE_OK )
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
while ( statement.step() == SQLITE_ROW )
|
||||
{
|
||||
QString transformString;
|
||||
//coord_op_methode_code
|
||||
int methodCode = statement.columnAsInt64( 0 );
|
||||
if ( methodCode == 9615 ) //ntv2
|
||||
{
|
||||
transformString = "+nadgrids=" + statement.columnAsText( 1 );
|
||||
}
|
||||
else if ( methodCode == 9603 || methodCode == 9606 || methodCode == 9607 )
|
||||
{
|
||||
transformString += QLatin1String( "+towgs84=" );
|
||||
double p1 = statement.columnAsDouble( 1 );
|
||||
double p2 = statement.columnAsDouble( 2 );
|
||||
double p3 = statement.columnAsDouble( 3 );
|
||||
double p4 = statement.columnAsDouble( 4 );
|
||||
double p5 = statement.columnAsDouble( 5 );
|
||||
double p6 = statement.columnAsDouble( 6 );
|
||||
double p7 = statement.columnAsDouble( 7 );
|
||||
if ( methodCode == 9603 ) //3 parameter transformation
|
||||
{
|
||||
transformString += QStringLiteral( "%1,%2,%3" ).arg( QString::number( p1 ), QString::number( p2 ), QString::number( p3 ) );
|
||||
}
|
||||
else //7 parameter transformation
|
||||
{
|
||||
transformString += QStringLiteral( "%1,%2,%3,%4,%5,%6,%7" ).arg( QString::number( p1 ), QString::number( p2 ), QString::number( p3 ), QString::number( p4 ), QString::number( p5 ), QString::number( p6 ), QString::number( p7 ) );
|
||||
}
|
||||
}
|
||||
|
||||
if ( transformString.compare( string, Qt::CaseInsensitive ) == 0 )
|
||||
{
|
||||
return statement.columnAsInt64( 8 );
|
||||
}
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
void QgsCoordinateTransformPrivate::addNullGridShifts( QString &srcProjString, QString &destProjString,
|
||||
int sourceDatumTransform, int destinationDatumTransform ) const
|
||||
{
|
||||
|
||||
@ -128,21 +128,6 @@ class QgsCoordinateTransformPrivate : public QSharedData
|
||||
QReadWriteLock mProjLock;
|
||||
QMap < uintptr_t, QPair< projPJ, projPJ > > mProjProjections;
|
||||
|
||||
/**
|
||||
* Returns the proj transform string corresponding to a
|
||||
* datum transform ID.
|
||||
* \see transformIdFromString()
|
||||
*/
|
||||
static QString datumTransformString( int transformId );
|
||||
|
||||
/**
|
||||
* Attempts to match a proj datum transform string to a datum ID.
|
||||
* Returns -1 if datum ID was not found.
|
||||
* \see datumTransformString()
|
||||
* \since QGIS 3.0
|
||||
*/
|
||||
static int transformIdFromString( const QString &string );
|
||||
|
||||
private:
|
||||
|
||||
//! Removes +nadgrids and +towgs84 from proj4 string
|
||||
|
||||
@ -203,7 +203,7 @@ bool QgsCoordinateTransformContext::readXml( const QDomElement &element, const Q
|
||||
//warn if value1 or value2 is non-empty, yet no matching transform was found
|
||||
if ( !value1.isEmpty() )
|
||||
{
|
||||
datumId1 = QgsCoordinateTransform::projStringToDatumTransformId( value1 );
|
||||
datumId1 = QgsDatumTransform::projStringToDatumTransformId( value1 );
|
||||
if ( datumId1 < 0 )
|
||||
{
|
||||
result = false;
|
||||
@ -212,7 +212,7 @@ bool QgsCoordinateTransformContext::readXml( const QDomElement &element, const Q
|
||||
}
|
||||
if ( !value2.isEmpty() )
|
||||
{
|
||||
datumId2 = QgsCoordinateTransform::projStringToDatumTransformId( value2 );
|
||||
datumId2 = QgsDatumTransform::projStringToDatumTransformId( value2 );
|
||||
if ( datumId2 < 0 )
|
||||
{
|
||||
result = false;
|
||||
@ -271,8 +271,8 @@ void QgsCoordinateTransformContext::writeXml( QDomElement &element, const QgsRea
|
||||
QDomElement transformElem = element.ownerDocument().createElement( QStringLiteral( "srcDest" ) );
|
||||
transformElem.setAttribute( QStringLiteral( "source" ), it.key().first );
|
||||
transformElem.setAttribute( QStringLiteral( "dest" ), it.key().second );
|
||||
transformElem.setAttribute( QStringLiteral( "sourceTransform" ), it.value().sourceTransformId < 0 ? QString() : QgsCoordinateTransform::datumTransformToProj( it.value().sourceTransformId ) );
|
||||
transformElem.setAttribute( QStringLiteral( "destTransform" ), it.value().destinationTransformId < 0 ? QString() : QgsCoordinateTransform::datumTransformToProj( it.value().destinationTransformId ) );
|
||||
transformElem.setAttribute( QStringLiteral( "sourceTransform" ), it.value().sourceTransformId < 0 ? QString() : QgsDatumTransform::datumTransformToProj( it.value().sourceTransformId ) );
|
||||
transformElem.setAttribute( QStringLiteral( "destTransform" ), it.value().destinationTransformId < 0 ? QString() : QgsDatumTransform::datumTransformToProj( it.value().destinationTransformId ) );
|
||||
contextElem.appendChild( transformElem );
|
||||
}
|
||||
|
||||
@ -334,7 +334,7 @@ void QgsCoordinateTransformContext::readSettings()
|
||||
}
|
||||
|
||||
QString proj = settings.value( *pkeyIt ).toString();
|
||||
int datumId = QgsCoordinateTransform::projStringToDatumTransformId( proj );
|
||||
int datumId = QgsDatumTransform::projStringToDatumTransformId( proj );
|
||||
if ( pkeyIt->contains( QLatin1String( "srcTransform" ) ) )
|
||||
{
|
||||
transforms[ qMakePair( srcAuthId, destAuthId )].first = datumId;
|
||||
@ -378,11 +378,11 @@ void QgsCoordinateTransformContext::writeSettings()
|
||||
int sourceDatumTransform = transformIt.value().sourceTransformId;
|
||||
QString sourceDatumProj;
|
||||
if ( sourceDatumTransform >= 0 )
|
||||
sourceDatumProj = QgsCoordinateTransform::datumTransformToProj( sourceDatumTransform );
|
||||
sourceDatumProj = QgsDatumTransform::datumTransformToProj( sourceDatumTransform );
|
||||
int destinationDatumTransform = transformIt.value().destinationTransformId;
|
||||
QString destinationDatumProj;
|
||||
if ( destinationDatumTransform >= 0 )
|
||||
destinationDatumProj = QgsCoordinateTransform::datumTransformToProj( destinationDatumTransform );
|
||||
destinationDatumProj = QgsDatumTransform::datumTransformToProj( destinationDatumTransform );
|
||||
|
||||
settings.setValue( srcAuthId + "//" + destAuthId + "_srcTransform", sourceDatumProj );
|
||||
settings.setValue( srcAuthId + "//" + destAuthId + "_destTransform", destinationDatumProj );
|
||||
|
||||
@ -53,6 +53,9 @@ class QDomElement;
|
||||
*
|
||||
* \note QgsCoordinateTransformContext objects are implicitly shared.
|
||||
*
|
||||
* \see QgsDatumTransform
|
||||
* \see QgsCoordinateTransform
|
||||
*
|
||||
* \since QGIS 3.0
|
||||
*/
|
||||
|
||||
|
||||
263
src/core/qgsdatumtransform.cpp
Normal file
263
src/core/qgsdatumtransform.cpp
Normal file
@ -0,0 +1,263 @@
|
||||
/***************************************************************************
|
||||
qgsdatumtransform.cpp
|
||||
------------------------
|
||||
begin : Dec 2017
|
||||
copyright : (C) 2017 Nyall Dawson
|
||||
email : nyall dot dawson at gmail dot com
|
||||
***************************************************************************/
|
||||
|
||||
/***************************************************************************
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or modify *
|
||||
* it under the terms of the GNU General Public License as published by *
|
||||
* the Free Software Foundation; either version 2 of the License, or *
|
||||
* (at your option) any later version. *
|
||||
* *
|
||||
***************************************************************************/
|
||||
#include "qgsdatumtransform.h"
|
||||
#include "qgscoordinatereferencesystem.h"
|
||||
#include "qgsapplication.h"
|
||||
#include "qgssqliteutils.h"
|
||||
#include <sqlite3.h>
|
||||
|
||||
QList< QgsDatumTransform::TransformPair > QgsDatumTransform::datumTransformations( const QgsCoordinateReferenceSystem &srcCRS, const QgsCoordinateReferenceSystem &destCRS )
|
||||
{
|
||||
QList< QgsDatumTransform::TransformPair > transformations;
|
||||
|
||||
QString srcGeoId = srcCRS.geographicCrsAuthId();
|
||||
QString destGeoId = destCRS.geographicCrsAuthId();
|
||||
|
||||
if ( srcGeoId.isEmpty() || destGeoId.isEmpty() )
|
||||
{
|
||||
return transformations;
|
||||
}
|
||||
|
||||
QStringList srcSplit = srcGeoId.split( ':' );
|
||||
QStringList destSplit = destGeoId.split( ':' );
|
||||
|
||||
if ( srcSplit.size() < 2 || destSplit.size() < 2 )
|
||||
{
|
||||
return transformations;
|
||||
}
|
||||
|
||||
int srcAuthCode = srcSplit.at( 1 ).toInt();
|
||||
int destAuthCode = destSplit.at( 1 ).toInt();
|
||||
|
||||
if ( srcAuthCode == destAuthCode )
|
||||
{
|
||||
return transformations; //crs have the same datum
|
||||
}
|
||||
|
||||
QList<int> directTransforms;
|
||||
searchDatumTransform( QStringLiteral( "SELECT coord_op_code FROM tbl_datum_transform WHERE source_crs_code=%1 AND target_crs_code=%2 ORDER BY deprecated ASC,preferred DESC" ).arg( srcAuthCode ).arg( destAuthCode ),
|
||||
directTransforms );
|
||||
QList<int> reverseDirectTransforms;
|
||||
searchDatumTransform( QStringLiteral( "SELECT coord_op_code FROM tbl_datum_transform WHERE source_crs_code = %1 AND target_crs_code=%2 ORDER BY deprecated ASC,preferred DESC" ).arg( destAuthCode ).arg( srcAuthCode ),
|
||||
reverseDirectTransforms );
|
||||
QList<int> srcToWgs84;
|
||||
searchDatumTransform( QStringLiteral( "SELECT coord_op_code FROM tbl_datum_transform WHERE (source_crs_code=%1 AND target_crs_code=%2) OR (source_crs_code=%2 AND target_crs_code=%1) ORDER BY deprecated ASC,preferred DESC" ).arg( srcAuthCode ).arg( 4326 ),
|
||||
srcToWgs84 );
|
||||
QList<int> destToWgs84;
|
||||
searchDatumTransform( QStringLiteral( "SELECT coord_op_code FROM tbl_datum_transform WHERE (source_crs_code=%1 AND target_crs_code=%2) OR (source_crs_code=%2 AND target_crs_code=%1) ORDER BY deprecated ASC,preferred DESC" ).arg( destAuthCode ).arg( 4326 ),
|
||||
destToWgs84 );
|
||||
|
||||
//add direct datum transformations
|
||||
for ( int transform : qgis::as_const( directTransforms ) )
|
||||
{
|
||||
transformations.push_back( QgsDatumTransform::TransformPair( transform, -1 ) );
|
||||
}
|
||||
|
||||
//add direct datum transformations
|
||||
for ( int transform : qgis::as_const( directTransforms ) )
|
||||
{
|
||||
transformations.push_back( QgsDatumTransform::TransformPair( -1, transform ) );
|
||||
}
|
||||
|
||||
for ( int srcTransform : qgis::as_const( srcToWgs84 ) )
|
||||
{
|
||||
for ( int destTransform : qgis::as_const( destToWgs84 ) )
|
||||
{
|
||||
transformations.push_back( QgsDatumTransform::TransformPair( srcTransform, destTransform ) );
|
||||
}
|
||||
}
|
||||
|
||||
return transformations;
|
||||
}
|
||||
|
||||
void QgsDatumTransform::searchDatumTransform( const QString &sql, QList< int > &transforms )
|
||||
{
|
||||
sqlite3_database_unique_ptr database;
|
||||
int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );
|
||||
if ( openResult != SQLITE_OK )
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
sqlite3_statement_unique_ptr statement;
|
||||
int prepareRes;
|
||||
statement = database.prepare( sql, prepareRes );
|
||||
if ( prepareRes != SQLITE_OK )
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
QString cOpCode;
|
||||
while ( statement.step() == SQLITE_ROW )
|
||||
{
|
||||
cOpCode = statement.columnAsText( 0 );
|
||||
transforms.push_back( cOpCode.toInt() );
|
||||
}
|
||||
}
|
||||
|
||||
QString QgsDatumTransform::datumTransformToProj( int datumTransform )
|
||||
{
|
||||
QString transformString;
|
||||
|
||||
sqlite3_database_unique_ptr database;
|
||||
int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );
|
||||
if ( openResult != SQLITE_OK )
|
||||
{
|
||||
return transformString;
|
||||
}
|
||||
|
||||
sqlite3_statement_unique_ptr statement;
|
||||
QString sql = QStringLiteral( "SELECT coord_op_method_code,p1,p2,p3,p4,p5,p6,p7 FROM tbl_datum_transform WHERE coord_op_code=%1" ).arg( datumTransform );
|
||||
int prepareRes;
|
||||
statement = database.prepare( sql, prepareRes );
|
||||
if ( prepareRes != SQLITE_OK )
|
||||
{
|
||||
return transformString;
|
||||
}
|
||||
|
||||
if ( statement.step() == SQLITE_ROW )
|
||||
{
|
||||
//coord_op_methode_code
|
||||
int methodCode = statement.columnAsInt64( 0 );
|
||||
if ( methodCode == 9615 ) //ntv2
|
||||
{
|
||||
transformString = "+nadgrids=" + statement.columnAsText( 1 );
|
||||
}
|
||||
else if ( methodCode == 9603 || methodCode == 9606 || methodCode == 9607 )
|
||||
{
|
||||
transformString += QLatin1String( "+towgs84=" );
|
||||
double p1 = statement.columnAsDouble( 1 );
|
||||
double p2 = statement.columnAsDouble( 2 );
|
||||
double p3 = statement.columnAsDouble( 3 );
|
||||
double p4 = statement.columnAsDouble( 4 );
|
||||
double p5 = statement.columnAsDouble( 5 );
|
||||
double p6 = statement.columnAsDouble( 6 );
|
||||
double p7 = statement.columnAsDouble( 7 );
|
||||
if ( methodCode == 9603 ) //3 parameter transformation
|
||||
{
|
||||
transformString += QStringLiteral( "%1,%2,%3" ).arg( QString::number( p1 ), QString::number( p2 ), QString::number( p3 ) );
|
||||
}
|
||||
else //7 parameter transformation
|
||||
{
|
||||
transformString += QStringLiteral( "%1,%2,%3,%4,%5,%6,%7" ).arg( QString::number( p1 ), QString::number( p2 ), QString::number( p3 ), QString::number( p4 ), QString::number( p5 ), QString::number( p6 ), QString::number( p7 ) );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return transformString;
|
||||
}
|
||||
|
||||
int QgsDatumTransform::projStringToDatumTransformId( const QString &string )
|
||||
{
|
||||
sqlite3_database_unique_ptr database;
|
||||
int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );
|
||||
if ( openResult != SQLITE_OK )
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
sqlite3_statement_unique_ptr statement;
|
||||
QString sql = QStringLiteral( "SELECT coord_op_method_code,p1,p2,p3,p4,p5,p6,p7,coord_op_code FROM tbl_datum_transform" );
|
||||
int prepareRes;
|
||||
statement = database.prepare( sql, prepareRes );
|
||||
if ( prepareRes != SQLITE_OK )
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
while ( statement.step() == SQLITE_ROW )
|
||||
{
|
||||
QString transformString;
|
||||
//coord_op_methode_code
|
||||
int methodCode = statement.columnAsInt64( 0 );
|
||||
if ( methodCode == 9615 ) //ntv2
|
||||
{
|
||||
transformString = "+nadgrids=" + statement.columnAsText( 1 );
|
||||
}
|
||||
else if ( methodCode == 9603 || methodCode == 9606 || methodCode == 9607 )
|
||||
{
|
||||
transformString += QLatin1String( "+towgs84=" );
|
||||
double p1 = statement.columnAsDouble( 1 );
|
||||
double p2 = statement.columnAsDouble( 2 );
|
||||
double p3 = statement.columnAsDouble( 3 );
|
||||
double p4 = statement.columnAsDouble( 4 );
|
||||
double p5 = statement.columnAsDouble( 5 );
|
||||
double p6 = statement.columnAsDouble( 6 );
|
||||
double p7 = statement.columnAsDouble( 7 );
|
||||
if ( methodCode == 9603 ) //3 parameter transformation
|
||||
{
|
||||
transformString += QStringLiteral( "%1,%2,%3" ).arg( QString::number( p1 ), QString::number( p2 ), QString::number( p3 ) );
|
||||
}
|
||||
else //7 parameter transformation
|
||||
{
|
||||
transformString += QStringLiteral( "%1,%2,%3,%4,%5,%6,%7" ).arg( QString::number( p1 ), QString::number( p2 ), QString::number( p3 ), QString::number( p4 ), QString::number( p5 ), QString::number( p6 ), QString::number( p7 ) );
|
||||
}
|
||||
}
|
||||
|
||||
if ( transformString.compare( string, Qt::CaseInsensitive ) == 0 )
|
||||
{
|
||||
return statement.columnAsInt64( 8 );
|
||||
}
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
QgsDatumTransform::TransformInfo QgsDatumTransform::datumTransformInfo( int datumTransform )
|
||||
{
|
||||
QgsDatumTransform::TransformInfo info;
|
||||
|
||||
sqlite3_database_unique_ptr database;
|
||||
int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );
|
||||
if ( openResult != SQLITE_OK )
|
||||
{
|
||||
return info;
|
||||
}
|
||||
|
||||
sqlite3_statement_unique_ptr statement;
|
||||
QString sql = QStringLiteral( "SELECT epsg_nr,source_crs_code,target_crs_code,remarks,scope,preferred,deprecated FROM tbl_datum_transform WHERE coord_op_code=%1" ).arg( datumTransform );
|
||||
int prepareRes;
|
||||
statement = database.prepare( sql, prepareRes );
|
||||
if ( prepareRes != SQLITE_OK )
|
||||
{
|
||||
return info;
|
||||
}
|
||||
|
||||
int srcCrsId, destCrsId;
|
||||
if ( statement.step() != SQLITE_ROW )
|
||||
{
|
||||
return info;
|
||||
}
|
||||
|
||||
info.datumTransformId = datumTransform;
|
||||
info.epsgCode = statement.columnAsInt64( 0 );
|
||||
srcCrsId = statement.columnAsInt64( 1 );
|
||||
destCrsId = statement.columnAsInt64( 2 );
|
||||
info.remarks = statement.columnAsText( 3 );
|
||||
info.scope = statement.columnAsText( 4 );
|
||||
info.preferred = statement.columnAsInt64( 5 ) != 0;
|
||||
info.deprecated = statement.columnAsInt64( 6 ) != 0;
|
||||
|
||||
QgsCoordinateReferenceSystem srcCrs = QgsCoordinateReferenceSystem::fromOgcWmsCrs( QStringLiteral( "EPSG:%1" ).arg( srcCrsId ) );
|
||||
info.sourceCrsDescription = srcCrs.description();
|
||||
info.sourceCrsAuthId = srcCrs.authid();
|
||||
QgsCoordinateReferenceSystem destCrs = QgsCoordinateReferenceSystem::fromOgcWmsCrs( QStringLiteral( "EPSG:%1" ).arg( destCrsId ) );
|
||||
info.destinationCrsDescription = destCrs.description();
|
||||
info.destinationCrsAuthId = destCrs.authid();
|
||||
|
||||
return info;
|
||||
}
|
||||
@ -20,9 +20,16 @@
|
||||
#include "qgis_core.h"
|
||||
#include <QString>
|
||||
|
||||
class QgsCoordinateReferenceSystem;
|
||||
|
||||
|
||||
/**
|
||||
* Contains methods and classes relating the datum transformations.
|
||||
* \ingroup core
|
||||
*
|
||||
* \see QgsCoordinateTransformContext
|
||||
* \see QgsCoordinateTransform
|
||||
*
|
||||
* \since QGIS 3.0
|
||||
*/
|
||||
class CORE_EXPORT QgsDatumTransform
|
||||
@ -107,6 +114,43 @@ class CORE_EXPORT QgsDatumTransform
|
||||
bool deprecated = false;
|
||||
|
||||
};
|
||||
|
||||
/**
|
||||
* Returns a list of datum transformations which are available for the given \a source and \a destination CRS.
|
||||
* \see datumTransformToProj()
|
||||
* \see datumTransformInfo()
|
||||
*/
|
||||
static QList< QgsDatumTransform::TransformPair > datumTransformations( const QgsCoordinateReferenceSystem &source, const QgsCoordinateReferenceSystem &destination );
|
||||
|
||||
/**
|
||||
* Returns a proj string representing the specified \a datumTransformId datum transform ID.
|
||||
* \see datumTransformations()
|
||||
* \see datumTransformInfo()
|
||||
* \see projStringToDatumTransformId()
|
||||
*/
|
||||
static QString datumTransformToProj( int datumTransformId );
|
||||
|
||||
/**
|
||||
* Returns the datum transform ID corresponding to a specified proj \a string.
|
||||
* Returns -1 if matching datum ID was not found.
|
||||
* \see datumTransformToProj()
|
||||
*/
|
||||
static int projStringToDatumTransformId( const QString &string );
|
||||
|
||||
/**
|
||||
* Returns detailed information about the specified \a datumTransformId.
|
||||
* If \a datumTransformId was not a valid transform ID, a TransformInfo with TransformInfo::datumTransformId of
|
||||
* -1 will be returned.
|
||||
* \see datumTransformations()
|
||||
* \see datumTransformToProj()
|
||||
*/
|
||||
static QgsDatumTransform::TransformInfo datumTransformInfo( int datumTransformId );
|
||||
|
||||
private:
|
||||
|
||||
static void searchDatumTransform( const QString &sql, QList< int > &transforms );
|
||||
|
||||
|
||||
};
|
||||
|
||||
#endif // QGSDATUMTRANSFORM_H
|
||||
|
||||
@ -46,7 +46,7 @@ QgsDatumTransformDialog::QgsDatumTransformDialog( const QgsCoordinateReferenceSy
|
||||
//get list of datum transforms
|
||||
mSourceCrs = sourceCrs;
|
||||
mDestinationCrs = destinationCrs;
|
||||
mDatumTransforms = QgsCoordinateTransform::datumTransformations( sourceCrs, destinationCrs );
|
||||
mDatumTransforms = QgsDatumTransform::datumTransformations( sourceCrs, destinationCrs );
|
||||
|
||||
QApplication::setOverrideCursor( Qt::ArrowCursor );
|
||||
|
||||
@ -84,10 +84,10 @@ void QgsDatumTransformDialog::load( const QPair<int, int> &selectedDatumTransfor
|
||||
if ( nr == -1 )
|
||||
continue;
|
||||
|
||||
item->setText( i, QgsCoordinateTransform::datumTransformToProj( nr ) );
|
||||
item->setText( i, QgsDatumTransform::datumTransformToProj( nr ) );
|
||||
|
||||
//Describe datums in a tooltip
|
||||
QgsDatumTransform::TransformInfo info = QgsCoordinateTransform::datumTransformInfo( nr );
|
||||
QgsDatumTransform::TransformInfo info = QgsDatumTransform::datumTransformInfo( nr );
|
||||
if ( info.datumTransformId == -1 )
|
||||
continue;
|
||||
|
||||
@ -266,7 +266,7 @@ void QgsDatumTransformDialog::mDatumTransformTreeWidget_currentItemChanged( QTre
|
||||
void QgsDatumTransformDialog::setSourceCrs( const QgsCoordinateReferenceSystem &sourceCrs )
|
||||
{
|
||||
mSourceCrs = sourceCrs;
|
||||
mDatumTransforms = QgsCoordinateTransform::datumTransformations( mSourceCrs, mDestinationCrs );
|
||||
mDatumTransforms = QgsDatumTransform::datumTransformations( mSourceCrs, mDestinationCrs );
|
||||
load();
|
||||
setOKButtonEnabled();
|
||||
}
|
||||
@ -274,7 +274,7 @@ void QgsDatumTransformDialog::setSourceCrs( const QgsCoordinateReferenceSystem &
|
||||
void QgsDatumTransformDialog::setDestinationCrs( const QgsCoordinateReferenceSystem &destinationCrs )
|
||||
{
|
||||
mDestinationCrs = destinationCrs;
|
||||
mDatumTransforms = QgsCoordinateTransform::datumTransformations( mSourceCrs, mDestinationCrs );
|
||||
mDatumTransforms = QgsDatumTransform::datumTransformations( mSourceCrs, mDestinationCrs );
|
||||
load();
|
||||
setOKButtonEnabled();
|
||||
}
|
||||
|
||||
@ -18,6 +18,7 @@ from qgis.core import (QgsRectangle,
|
||||
QgsCoordinateReferenceSystem,
|
||||
QgsCoordinateTransform,
|
||||
QgsCoordinateTransformContext,
|
||||
QgsDatumTransform,
|
||||
QgsProject)
|
||||
from qgis.testing import start_app, unittest
|
||||
|
||||
@ -209,27 +210,27 @@ class TestQgsCoordinateTransform(unittest.TestCase):
|
||||
|
||||
def testTransformInfo(self):
|
||||
# hopefully this transform is available on all platforms!
|
||||
transforms = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4613), QgsCoordinateReferenceSystem(4326))
|
||||
transforms = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4613), QgsCoordinateReferenceSystem(4326))
|
||||
self.assertTrue(len(transforms) > 0)
|
||||
self.assertIn('+towgs84=-403,684,41', [QgsCoordinateTransform.datumTransformToProj(t.sourceTransformId) for t in transforms])
|
||||
self.assertIn('+towgs84=-403,684,41', [QgsCoordinateTransform.datumTransformToProj(t.destinationTransformId) for t in transforms])
|
||||
self.assertIn('EPSG:4613', [QgsCoordinateTransform.datumTransformInfo(t.destinationTransformId).sourceCrsAuthId for t in
|
||||
self.assertIn('+towgs84=-403,684,41', [QgsDatumTransform.datumTransformToProj(t.sourceTransformId) for t in transforms])
|
||||
self.assertIn('+towgs84=-403,684,41', [QgsDatumTransform.datumTransformToProj(t.destinationTransformId) for t in transforms])
|
||||
self.assertIn('EPSG:4613', [QgsDatumTransform.datumTransformInfo(t.destinationTransformId).sourceCrsAuthId for t in
|
||||
transforms])
|
||||
self.assertIn('EPSG:4326', [QgsCoordinateTransform.datumTransformInfo(t.destinationTransformId).destinationCrsAuthId for t in
|
||||
self.assertIn('EPSG:4326', [QgsDatumTransform.datumTransformInfo(t.destinationTransformId).destinationCrsAuthId for t in
|
||||
transforms])
|
||||
|
||||
def testStringToTransformId(self):
|
||||
"""
|
||||
Test converting proj strings to corresponding datum IDs
|
||||
"""
|
||||
self.assertEqual(QgsCoordinateTransform.projStringToDatumTransformId(''), -1)
|
||||
self.assertEqual(QgsCoordinateTransform.projStringToDatumTransformId('not'), -1)
|
||||
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId(''), -1)
|
||||
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId('not'), -1)
|
||||
test_string = '+towgs84=-403,684,41'
|
||||
id = QgsCoordinateTransform.projStringToDatumTransformId(test_string)
|
||||
id = QgsDatumTransform.projStringToDatumTransformId(test_string)
|
||||
self.assertNotEqual(id, -1)
|
||||
string = QgsCoordinateTransform.datumTransformToProj(id)
|
||||
string = QgsDatumTransform.datumTransformToProj(id)
|
||||
self.assertEqual(string, test_string)
|
||||
self.assertEqual(QgsCoordinateTransform.projStringToDatumTransformId(test_string.upper()), id)
|
||||
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId(test_string.upper()), id)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
|
||||
@ -302,15 +302,15 @@ class TestQgsCoordinateTransformContext(unittest.TestCase):
|
||||
# setup a context
|
||||
context = QgsCoordinateTransformContext()
|
||||
|
||||
source_id_1 = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326))[0].sourceTransformId
|
||||
dest_id_1 = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326))[0].destinationTransformId
|
||||
source_id_1 = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326))[0].sourceTransformId
|
||||
dest_id_1 = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326))[0].destinationTransformId
|
||||
|
||||
source_id_2 = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4205),
|
||||
QgsCoordinateReferenceSystem(4326))[0].sourceTransformId
|
||||
dest_id_2 = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4205),
|
||||
QgsCoordinateReferenceSystem(4326))[0].destinationTransformId
|
||||
source_id_2 = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4205),
|
||||
QgsCoordinateReferenceSystem(4326))[0].sourceTransformId
|
||||
dest_id_2 = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4205),
|
||||
QgsCoordinateReferenceSystem(4326))[0].destinationTransformId
|
||||
|
||||
self.assertTrue(context.addSourceDestinationDatumTransform(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326), source_id_1, dest_id_1))
|
||||
@ -373,15 +373,15 @@ class TestQgsCoordinateTransformContext(unittest.TestCase):
|
||||
context = QgsCoordinateTransformContext()
|
||||
context.readSettings()
|
||||
|
||||
source_id_1 = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326))[0].sourceTransformId
|
||||
dest_id_1 = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326))[0].destinationTransformId
|
||||
source_id_1 = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326))[0].sourceTransformId
|
||||
dest_id_1 = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4204),
|
||||
QgsCoordinateReferenceSystem(4326))[0].destinationTransformId
|
||||
|
||||
source_id_2 = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4205),
|
||||
QgsCoordinateReferenceSystem(4326))[0].sourceTransformId
|
||||
dest_id_2 = QgsCoordinateTransform.datumTransformations(QgsCoordinateReferenceSystem(4205),
|
||||
QgsCoordinateReferenceSystem(4326))[0].destinationTransformId
|
||||
source_id_2 = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4205),
|
||||
QgsCoordinateReferenceSystem(4326))[0].sourceTransformId
|
||||
dest_id_2 = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4205),
|
||||
QgsCoordinateReferenceSystem(4326))[0].destinationTransformId
|
||||
|
||||
# should be empty
|
||||
self.assertEqual(context.sourceDestinationDatumTransforms(), {})
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user