[BUGFIX][QGIS Server] Add layer coordinate transforms before setting …

…destination CRS If the layer_coordinate_transform_info child of mapcanvas has not been well saved, the destinationCrs is not well applied and we get a blank image. To resolve this issue, we just have to add layer coordinate transforms to the map renderer before setting the destination CRS.
qgis · Oct 13, 2015 · 011109a · 011109a
1 parent 585b82e
commit 011109a
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/server/qgswmsserver.cpp b/src/server/qgswmsserver.cpp
@@ -1804,9 +1804,6 @@ int QgsWMSServer::configureMapRender( const QPaintDevice* paintDevice ) const
       throw QgsMapServiceException( "InvalidCRS", "Could not create output CRS" );
       return 5;
     }
-    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 )
@@ -1819,6 +1816,11 @@ int QgsWMSServer::configureMapRender( const QPaintDevice* paintDevice ) const
         mMapRenderer->addLayerCoordinateTransform( ltIt->first, t.srcAuthId, t.destAuthId, t.srcDatumTransform, t.destDatumTransform );
       }
     }
+
+    //then set destinationCrs
+    mMapRenderer->setDestinationCrs( outputCRS );
+    mMapRenderer->setProjectionsEnabled( true );
+    mapUnits = outputCRS.mapUnits();
   }
   mMapRenderer->setMapUnits( mapUnits );