/// <summary>
/// This method overrides from its base class TileOverlay.
/// It actually requests image for the passed tile with the passed world extent.
/// </summary>
/// <param name="tile">A tile object that creating by the GetTileCore method. It's the tile which needs to be draw in this mehtod.</param>
/// <param name="targetExtent">A world extent that to draw the passed tile object.</param>
protected override void DrawTileCore(Wpf.Tile tile, RectangleShape targetExtent)
{
LayerTile layerTile = tile as LayerTile;
if (layerTile != null)
{
layerTile.TileCache = TileCache;
layerTile.DrawingLayers.Clear();
layerTile.DrawingLayers.Add(wktLayer);
Bitmap nativeImage = new Bitmap((int)tile.Width, (int)tile.Height);
PlatformGeoCanvas geoCanvas = new PlatformGeoCanvas();
geoCanvas.BeginDrawing(nativeImage, targetExtent, MapArguments.MapUnit);
if (tile.IsAsync)
{
layerTile.DrawAsync(geoCanvas);
}
else
{
layerTile.Draw(geoCanvas);
geoCanvas.EndDrawing();
layerTile.CommitDrawing(geoCanvas, MapUtils.GetImageSourceFromNativeImage(nativeImage));
}
}
}
protected override void DrawTileCore(GeoCanvas geoCanvas)
{
base.DrawTileCore(geoCanvas);
LayerTile layerTile = OverlayCanvas.Children.OfType <LayerTile>().FirstOrDefault(tmpTile
=> tmpTile.GetValue(FrameworkElement.NameProperty).Equals("DefaultLayerTile"));
if (layerTile != null)
{
layerTile.DrawingLayers.Insert(0, ShapeLayer);
layerTile.Draw(geoCanvas);
}
}
private LayerTile DrawHighlightTile(RectangleShape targetExtent, LayerTile tile)
{
tile.DrawingLayers.Clear();
if (highlightFeatureLayer.InternalFeatures.Count > 0)
{
tile.DrawingLayers.Add(highlightFeatureLayer);
}
GeoCanvas geoCanvas = new PlatformGeoCanvas()
{
CompositingQuality = CompositingQuality.HighSpeed,
DrawingQuality = DrawingQuality.HighSpeed,
SmoothingMode = SmoothingMode.HighSpeed
};
Bitmap bitmap = new Bitmap((int)tile.Width, (int)tile.Height);
geoCanvas.BeginDrawing(bitmap, targetExtent, MapArguments.MapUnit);
tile.Draw(geoCanvas);
geoCanvas.EndDrawing();
tile.CommitDrawing(geoCanvas, MapSuiteSampleHelper.GetImageSourceFromNativeImage(bitmap));
return(tile);
}
private void RedrawTile(LayerTile layerTile)
{
int tileSW = (int)MapArguments.ActualWidth;
int tileSH = (int)MapArguments.ActualHeight;
GeoCanvas geoCanvas = null;
object nativeImage = null;
if (RenderMode == RenderMode.DrawingVisual)
{
geoCanvas = new DrawingVisualGeoCanvas();
nativeImage = new RenderTargetBitmap(tileSW, tileSH, geoCanvas.Dpi, geoCanvas.Dpi, PixelFormats.Pbgra32);
}
else
{
nativeImage = new System.Drawing.Bitmap(tileSW, tileSH);
geoCanvas = new PlatformGeoCanvas();
}
geoCanvas.BeginDrawing(nativeImage, layerTile.TargetExtent, MapArguments.MapUnit);
layerTile.Draw(geoCanvas);
geoCanvas.EndDrawing();
layerTile.CommitDrawing(geoCanvas, GetImageSourceFromNativeImage(nativeImage));
}
private LayerTile DrawHighlightTile(RectangleShape targetExtent, LayerTile tile)
{
tile.DrawingLayers.Clear();
if (highlightFeatureLayer.InternalFeatures.Count > 0)
{
tile.DrawingLayers.Add(highlightFeatureLayer);
}
GeoCanvas geoCanvas = new GdiPlusGeoCanvas()
{
CompositingQuality = CompositingQuality.HighSpeed,
DrawingQuality = DrawingQuality.HighSpeed,
SmoothingMode = SmoothingMode.HighSpeed
};
Bitmap bitmap = new Bitmap((int)tile.Width, (int)tile.Height);
geoCanvas.BeginDrawing(bitmap, targetExtent, MapArguments.MapUnit);
tile.Draw(geoCanvas);
geoCanvas.EndDrawing();
tile.CommitDrawing(geoCanvas, MapSuiteSampleHelper.GetImageSourceFromNativeImage(bitmap));
return tile;
}