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Use defined datum transform also in server and fix datum transform re…

…lated bugs
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mhugent committed Nov 7, 2013
1 parent aec1d5e commit 1c47011fbbf1011fb59c51fbf56968f6ed9f0256
@@ -1251,7 +1251,9 @@ const QgsCoordinateTransform* QgsMapRenderer::tr( const QgsMapLayer *layer ) con
}

QHash< QString, QgsLayerCoordinateTransform >::const_iterator ctIt = mLayerCoordinateTransformInfo.find( layer->id() );
if ( ctIt != mLayerCoordinateTransformInfo.constEnd() )
if ( ctIt != mLayerCoordinateTransformInfo.constEnd()
&& ctIt->srcAuthId == layer->crs().authid()
&& ctIt->destAuthId == mDestCRS->authid() )
{
return QgsCoordinateTransformCache::instance()->transform( ctIt->srcAuthId, ctIt->destAuthId, ctIt->srcDatumTransform, ctIt->destDatumTransform );
}
@@ -1262,7 +1264,10 @@ const QgsCoordinateTransform* QgsMapRenderer::tr( const QgsMapLayer *layer ) con

//still not present? get coordinate transformation with -1/-1 datum transform as default
ctIt = mLayerCoordinateTransformInfo.find( layer->id() );
if ( ctIt == mLayerCoordinateTransformInfo.constEnd() )
if ( ctIt == mLayerCoordinateTransformInfo.constEnd()
|| ctIt->srcAuthId == layer->crs().authid()
|| ctIt->destAuthId == mDestCRS->authid()
)
{
return QgsCoordinateTransformCache::instance()->transform( layer->crs().authid(), mDestCRS->authid(), -1, -1 );
}
@@ -1353,4 +1358,9 @@ void QgsMapRenderer::addLayerCoordinateTransform( const QString& layerId, const
mLayerCoordinateTransformInfo.insert( layerId, lt );
}

void QgsMapRenderer::clearLayerCoordinateTransforms()
{
mLayerCoordinateTransformInfo.clear();
}

bool QgsMapRenderer::mDrawing = false;
@@ -296,6 +296,7 @@ class CORE_EXPORT QgsMapRenderer : public QObject
static QgsMapRenderer::BlendMode getBlendModeEnum( const QPainter::CompositionMode blendMode );

void addLayerCoordinateTransform( const QString& layerId, const QString& srcAuthId, const QString& destAuthId, int srcDatumTransform = -1, int destDatumTransform = -1 );
void clearLayerCoordinateTransforms();

const QgsCoordinateTransform* tr( const QgsMapLayer *layer ) const;

@@ -599,3 +599,8 @@ void QgsConfigParser::serviceCapabilities( QDomElement& parentElement, QDomDocum
}
}
}

QList< QPair< QString, QgsLayerCoordinateTransform > > QgsConfigParser::layerCoordinateTransforms() const
{
return QList< QPair< QString, QgsLayerCoordinateTransform > >();
}
@@ -164,6 +164,8 @@ class QgsConfigParser
/**Applies configuration specific label settings*/
virtual void loadLabelSettings( QgsLabelingEngineInterface* lbl ) { Q_UNUSED( lbl ); }

virtual QList< QPair< QString, QgsLayerCoordinateTransform > > layerCoordinateTransforms() const;

protected:
/**Parser to forward not resolved requests (e.g. SLD parser based on user request might have a fallback parser with admin configuration)*/
QgsConfigParser* mFallbackParser;
@@ -3661,7 +3661,7 @@ void QgsProjectParser::loadLabelSettings( QgsLabelingEngineInterface* lbl )
{
pal->setShowingAllLabels( showAllLabelsElem.text().compare( "true", Qt::CaseInsensitive ) == 0 );
}

//mShowingPartialsLabels
QDomElement showPartialsLabelsElem = palElem.firstChildElement( "ShowingPartialsLabels" );
if ( !showPartialsLabelsElem.isNull() )
@@ -3670,3 +3670,30 @@ void QgsProjectParser::loadLabelSettings( QgsLabelingEngineInterface* lbl )
}
}
}

QList< QPair< QString, QgsLayerCoordinateTransform > > QgsProjectParser::layerCoordinateTransforms() const
{
QList< QPair< QString, QgsLayerCoordinateTransform > > layerTransformList;

QDomElement coordTransformInfoElem = mXMLDoc->documentElement().firstChildElement( "mapcanvas" ).firstChildElement( "layer_coordinate_transform_info" );
if ( coordTransformInfoElem.isNull() )
{
return layerTransformList;
}

QDomNodeList layerTransformNodeList = coordTransformInfoElem.elementsByTagName( "layer_coordinate_transform" );
for ( int i = 0; i < layerTransformNodeList.size(); ++i )
{
QPair< QString, QgsLayerCoordinateTransform > layerEntry;
QDomElement layerTransformElem = layerTransformNodeList.at( i ).toElement();
layerEntry.first = layerTransformElem.attribute( "layerid" );
QgsLayerCoordinateTransform t;
t.srcAuthId = layerTransformElem.attribute( "srcAuthId" );
t.destAuthId = layerTransformElem.attribute( "destAuthId" );
t.srcDatumTransform = layerTransformElem.attribute( "srcDatumTransform", "-1" ).toInt();
t.destDatumTransform = layerTransformElem.attribute( "destDatumTransform", "-1" ).toInt();
layerEntry.second = t;
layerTransformList.push_back( layerEntry );
}
return layerTransformList;
}
@@ -140,6 +140,8 @@ class QgsProjectParser: public QgsConfigParser

void loadLabelSettings( QgsLabelingEngineInterface* lbl );

QList< QPair< QString, QgsLayerCoordinateTransform > > layerCoordinateTransforms() const;

private:

//forbidden
@@ -1136,6 +1136,7 @@ int QgsWMSServer::configureMapRender( const QPaintDevice* paintDevice ) const
return 1; //paint device is needed for height, width, dpi
}

mMapRenderer->clearLayerCoordinateTransforms();
mMapRenderer->setOutputSize( QSize( paintDevice->width(), paintDevice->height() ), paintDevice->logicalDpiX() );

//map extent
@@ -1193,6 +1194,18 @@ int QgsWMSServer::configureMapRender( const QPaintDevice* paintDevice ) const
mMapRenderer->setDestinationCrs( outputCRS );
mMapRenderer->setProjectionsEnabled( true );
mapUnits = outputCRS.mapUnits();

//read layer coordinate transforms from project file (e.g. ct with special datum shift)
if ( mConfigParser )
{
QList< QPair< QString, QgsLayerCoordinateTransform > > lt = mConfigParser->layerCoordinateTransforms();
QList< QPair< QString, QgsLayerCoordinateTransform > >::const_iterator ltIt = lt.constBegin();
for ( ; ltIt != lt.constEnd(); ++ltIt )
{
QgsLayerCoordinateTransform t = ltIt->second;
mMapRenderer->addLayerCoordinateTransform( ltIt->first, t.srcAuthId, t.destAuthId, t.srcDatumTransform, t.destDatumTransform );
}
}
}
mMapRenderer->setMapUnits( mapUnits );

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