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Add polygon to wpf map

#1

 Hi,


I try to add polygon to the map , without success.


I use the following code:   what wrong?


 



private void InitializeOverlays()


        {


.......



 if (Map.Overlays.GetKeys().Contains(lAYERS_OVERLAY) == false)


            {


                InMemoryFeatureLayer polygonrlayer = new InMemoryFeatureLayer();


                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.FromArgb(150, GeoColor.StandardColors.Red));


                polygonrlayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;


 


                LayerOverlay layerOverlay = new LayerOverlay();


                layerOverlay.Layers.Add(POLYGON_LAYER, polygonrlayer);


 


                Map.Overlays.Add(lAYERS_OVERLAY, layerOverlay);


            }



 


}


 



   private void AddPolygons( )


        {


            InMemoryFeatureLayer polygonLayer = (InMemoryFeatureLayer)Map.FindFeatureLayer(POLYGON_LAYER);


           polygonLayer.Open();


           polygonLayer.EditTools.BeginTransaction();


                    Feature feature = new Feature("POLYGON((14.863037109375 47.722412109375,14.80810546875 47.634521484375,14.928955078125 47.27197265625,15.09375 47.22802734375,15.236572265625 47.348876953125,15.324462890625 47.524658203125,15.324462890625 47.8212890625,15.15966796875 47.9091796875,14.863037109375 47.722412109375))");


                var valid = feature.IsValid();


             polygonLayer.EditTools.Add(feature);


                 }


         


            polygonLayer.EditTools.CommitTransaction();


            Map.CurrentExtent = Map.Overlays[lAYERS_OVERLAY].GetBoundingBox();


           Map.Refresh(Map.Overlays[lAYERS_OVERLAY]);


           polygonLayer.Close();


            


        }


 


Thanks alot!




 



#2

Hi, 
  
 It’s work now .but I need to add the layer every time I add the polygon (  Map.Overlays.Add(layerOverlay); ) 
  
 Why?

#3

Hi Yael, 
  
 Could you post your latest code or your sample project which works? That will help and speed up to figure out what’s going on. 
  
 Thanks, 
 Lee

#4

Hi, 
 this is the codeto init the  (after add some other overlays) 
 
 private void InitializeOverlays()
        {
        //…init other overlays

            //Overlay for polygons
            if (Map.Overlays.GetKeys().Contains(lAYERS_OVERLAY) == false)
            {
                InMemoryFeatureLayer polygonrlayer = new InMemoryFeatureLayer();
                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.FillSolidBrush.Color = GeoColor.FromArgb(100, GeoColor.StandardColors.RoyalBlue);
                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.OutlinePen.Color = GeoColor.StandardColors.Blue;
                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen = new GeoPen(GeoColor.FromArgb(200, GeoColor.StandardColors.Red), 5);
                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.FromArgb(255, GeoColor.StandardColors.Green), 8);
                polygonrlayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
              
                LayerOverlay layerOverlay = new LayerOverlay();
                layerOverlay.Layers.Add(POLYGON_LAYER, polygonrlayer);
                Map.Overlays.Add(lAYERS_OVERLAY, layerOverlay);
            }
}
  
 this is the code of init the polygons (It’s called several times during the application running) 
 
private void AddPolygons(List<Location> listLocations)
        {
  
            InMemoryFeatureLayer polygonLayer = (InMemoryFeatureLayer)Map.FindFeatureLayer(POLYGON_LAYER);
               

            foreach (var location in listLocations)
            { 
                var polygonShape =  CreatelPolygon(locationr);  
                if (polygonShape.Validate(ShapeValidationMode.Simple).IsValid)
                    polygonLayer.InternalFeatures.Add(new Feature(polygonShape)); 

            } 
               
           
            var layerOverlay = (LayerOverlay)Map.Overlays[lAYERS_OVERLAY];
             Map.Overlays.Add(layerOverlay);
            // if I delete the line above and use the following line it don’t work
          //  layerOverlay.Refresh(); 
}
  
  
 Thanks!

#5

yael, 



Thanks for your code, I have tested it, and looks like it works fine, is there something I missed? Please check my test code below:



private void WpfMap_Loaded(object sender, RoutedEventArgs e)
        {
            Map1.MapUnit = GeographyUnit.DecimalDegree;

            if (Map1.Overlays.GetKeys().Contains("lAYERS_OVERLAY") == false)
            {
                InMemoryFeatureLayer polygonrlayer = new InMemoryFeatureLayer();
                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.FillSolidBrush.Color = GeoColor.FromArgb(100, GeoColor.StandardColors.RoyalBlue);
                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.OutlinePen.Color = GeoColor.StandardColors.Blue;
                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen = new GeoPen(GeoColor.FromArgb(200, GeoColor.StandardColors.Red), 5);
                polygonrlayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.FromArgb(255, GeoColor.StandardColors.Green), 8);
                polygonrlayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
                polygonrlayer.InternalFeatures.Add(new Feature("POLYGON((14.863037109375 47.722412109375,14.80810546875 47.634521484375,14.928955078125 47.27197265625,15.09375 47.22802734375,15.236572265625 47.348876953125,15.324462890625 47.524658203125,15.324462890625 47.8212890625,15.15966796875 47.9091796875,14.863037109375 47.722412109375))"));
                LayerOverlay layerOverlay = new LayerOverlay();
                layerOverlay.Layers.Add("POLYGON_LAYER", polygonrlayer);
                Map1.Overlays.Add("lAYERS_OVERLAY", layerOverlay);
            }
            Map1.CurrentExtent = Map1.Overlays[0].GetBoundingBox();
            Map1.Refresh();
        }
        private void AddPolygons()
        {

            InMemoryFeatureLayer polygonLayer = (InMemoryFeatureLayer)Map1.FindFeatureLayer("POLYGON_LAYER");

            //foreach (var location in listLocations)
            //{
                //var polygonShape = CreatelPolygon(locationr);
                //if (polygonShape.Validate(ShapeValidationMode.Simple).IsValid)
                polygonLayer.InternalFeatures.Add(new Feature("POLYGON((15.863037109375 47.722412109375,15.80810546875 47.634521484375,14.928955078125 47.27197265625,15.09375 47.22802734375,15.236572265625 47.348876953125,15.324462890625 47.524658203125,15.324462890625 47.8212890625,15.15966796875 47.9091796875,15.863037109375 47.722412109375))"));
                polygonLayer.InternalFeatures.Add(new Feature("POLYGON((12.863037109375 47.722412109375,15.80810546875 47.634521484375,14.928955078125 47.27197265625,15.09375 47.22802734375,15.236572265625 47.348876953125,15.324462890625 47.524658203125,15.324462890625 47.8212890625,15.15966796875 47.9091796875,12.863037109375 47.722412109375))"));
                polygonLayer.InternalFeatures.Add(new Feature("POLYGON((18.863037109375 47.722412109375,15.80810546875 47.634521484375,14.928955078125 47.27197265625,15.09375 47.22802734375,15.236572265625 47.348876953125,15.324462890625 47.524658203125,15.324462890625 47.8212890625,15.15966796875 47.9091796875,18.863037109375 47.722412109375))"));
            //}
            var layerOverlay = (LayerOverlay)Map1.Overlays["lAYERS_OVERLAY"];
            layerOverlay.Refresh();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            AddPolygons();
        }



Any more questions please feel free to let me know. 



Thanks, 



Gary