private void WpfMap_Loaded(object sender, RoutedEventArgs e)
        {
            Map1.MapUnit = GeographyUnit.DecimalDegree;
            Map1.CurrentExtent = new RectangleShape(-155.733, 95.60, 104.42, -81.9);

            InMemoryFeatureLayer inmLayer = new InMemoryFeatureLayer();
            inmLayer.InternalFeatures.Add(new Feature(0, 0));
            inmLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level10;
            inmLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = new PointStyle
            {
                PointType = PointType.Symbol,
                SymbolType = PointSymbolType.Diamond,
                SymbolSolidBrush = new GeoSolidBrush(GeoColor.SimpleColors.Red),
                SymbolSize = 50
            };

            LayerOverlay ov = new LayerOverlay();
            ov.Layers.Add(inmLayer);
            Map1.Overlays.Add(ov);
            Map1.Refresh();
        }