private static ImageSource GetEditTraceLineImageSourceWithGdiPlusGeoCanvas(MapArguments mapArguments, InMemoryFeatureLayer inProcessLayer, Collection <SimpleCandidate> simpleCandidates, OutlineDrawMode outlineDrawMode)
{
MemoryStream streamSource = null;
OutlineGdiPlusGeoCanvas geoCanvas = new OutlineGdiPlusGeoCanvas();
geoCanvas.OutlineDrawMode = outlineDrawMode;
using (var nativeImage = new System.Drawing.Bitmap((int)mapArguments.ActualWidth, (int)mapArguments.ActualHeight))
{
geoCanvas.BeginDrawing(nativeImage, mapArguments.CurrentExtent, mapArguments.MapUnit);
lock (inProcessLayer)
{
if (!inProcessLayer.IsOpen)
{
inProcessLayer.Open();
}
inProcessLayer.Draw(geoCanvas, simpleCandidates);
}
geoCanvas.EndDrawing();
streamSource = new MemoryStream();
nativeImage.Save(streamSource, System.Drawing.Imaging.ImageFormat.Png);
streamSource.Seek(0, SeekOrigin.Begin);
}
BitmapImage bitmapImage = new BitmapImage();
bitmapImage.BeginInit();
bitmapImage.StreamSource = streamSource;
bitmapImage.EndInit();
bitmapImage.Freeze();
return(bitmapImage);
}
protected override void DrawCore(GeoCanvas canvas)
{
if (highlightFeature != null)
{
highlightFeatureLayer.Clear();
highlightFeatureLayer.InternalFeatures.Add(highlightFeature);
highlightFeatureLayer.Draw(canvas, new Collection <SimpleCandidate>());
}
}
private static ImageSource GetEditTraceLineImageSourceWithDrawingVisualGeoCanvas(MapArguments mapArguments, InMemoryFeatureLayer inProcessLayer, Collection <SimpleCandidate> simpleCandidates, OutlineDrawMode outlineDrawMode)
{
OutlineDrawingVisualGeoCanvas geoCanvas = new OutlineDrawingVisualGeoCanvas();
geoCanvas.OutlineDrawMode = outlineDrawMode;
RenderTargetBitmap nativeImage = new RenderTargetBitmap((int)mapArguments.ActualWidth, (int)mapArguments.ActualHeight, geoCanvas.Dpi, geoCanvas.Dpi, PixelFormats.Pbgra32);
geoCanvas.BeginDrawing(nativeImage, mapArguments.CurrentExtent, mapArguments.MapUnit);
lock (inProcessLayer)
{
if (!inProcessLayer.IsOpen)
{
inProcessLayer.Open();
}
inProcessLayer.Draw(geoCanvas, simpleCandidates);
}
geoCanvas.EndDrawing();
return(nativeImage);
}
