use SRS

rblazek · rblazek · commit fbf546b7eeaa · 2006-02-06T15:53:17.000Z
git-svn-id: http://svn.osgeo.org/qgis/trunk@4801 c8812cc2-4d05-0410-92ff-de0c093fc19c
diff --git a/src/providers/wms/qgswmsprovider.cpp b/src/providers/wms/qgswmsprovider.cpp
@@ -245,11 +245,12 @@ QImage* QgsWmsProvider::draw(QgsRect  const & viewExtent, int pixelWidth, int pi
 
   // Bounding box in WMS format
   QString bbox;
+  // Warning: does not work with scientific notation
   bbox = QString("%1,%2,%3,%4").
-          arg(viewExtent.xMin()).
-          arg(viewExtent.yMin()).
-          arg(viewExtent.xMax()).
-          arg(viewExtent.yMax());
+          arg(viewExtent.xMin(),0,'f').
+          arg(viewExtent.yMin(),0,'f').
+          arg(viewExtent.xMax(),0,'f').
+          arg(viewExtent.yMax(),0,'f');
           
   // Width in WMS format
   QString width;
@@ -334,15 +335,23 @@ QImage* QgsWmsProvider::draw(QgsRect  const & viewExtent, int pixelWidth, int pi
 
   // compose the URL query string for the WMS server.
 
-  drawuri += "Service=WMS";
+  drawuri += "?Service=WMS";
   drawuri += "&";
   drawuri += "Version=1.1.0";
   drawuri += "&";
   drawuri += "Request=GetMap";
   drawuri += "&";
   drawuri += "BBox=" + bbox;
-  drawuri += "&";
-  drawuri += "SRS=EPSG:4326";
+  //drawuri += "&";
+  //drawuri += "SRS=EPSG:4326";
+  // TODO: for now use the first SRS of the first layer
+  if ( layersSupported.size() > 0 && 
+       layersSupported[0].crs.size() )
+  {
+    std::set<QString>::iterator it = layersSupported[0].crs.begin();
+    drawuri += "&";
+    drawuri += "SRS=" + *it;
+  }
   drawuri += "&";
   drawuri += "Width=" + width;
   drawuri += "&";
@@ -353,6 +362,8 @@ QImage* QgsWmsProvider::draw(QgsRect  const & viewExtent, int pixelWidth, int pi
   drawuri += "Styles=" + styles;
   drawuri += "&";
   drawuri += "Format=" + imageMimeType;
+  drawuri += "&";
+  drawuri += "Transparent=true";
 
   emit setStatus( QString("Test from QgsWmsProvider") );
 
@@ -1188,6 +1199,14 @@ void QgsWmsProvider::parseLayer(QDomElement const & e, QgsWmsLayerProperty& laye
           else if (e1.tagName() == "BoundingBox")
           {
             // TODO
+              QgsWmsBoundingBoxProperty bbox;
+              bbox.box = QgsRect ( e1.attribute("minx").toDouble(),
+                                   e1.attribute("miny").toDouble(),
+                                   e1.attribute("maxx").toDouble(),
+                                   e1.attribute("maxy").toDouble()
+                                 );
+              bbox.crs = e1.attribute("SRS");
+              layerProperty.boundingBox.push_back ( bbox );
           }
           else if (e1.tagName() == "Dimension")
           {
@@ -1254,7 +1273,17 @@ void QgsWmsProvider::parseLayer(QDomElement const & e, QgsWmsLayerProperty& laye
 
     // Store the extent so that it can be combined with others later
     // in calculateExtent()
-    extentForLayer[ layerProperty.name ] = layerProperty.ex_GeographicBoundingBox;
+    // For now use extent in the first SRS defined for the layer
+    //extentForLayer[ layerProperty.name ] = layerProperty.ex_GeographicBoundingBox;
+    if ( layerProperty.crs.size() > 0 ) 
+    {
+        // TODO: find the correct bounding box
+        if ( layerProperty.boundingBox.size() > 0 ) 
+        {
+            extentForLayer[ layerProperty.name ] = 
+               layerProperty.boundingBox[0].box;
+        }
+    }
 
     // Insert into the local class' registry
     layersSupported.push_back(layerProperty);
