public async void MergineSelect()//合并选择区编辑的结果，实际是sImg和底层的拼合
{
Layer.Children.Remove(canvasTempObject);
//Layer.Children.Remove(Photo);
WriteableBitmap mb = await WriteableBitmapHelper.Snapshot(Layer);
//canvasSelect.Children.Clear();
Photo.Source = mb;
_Photo = mb;
sImg.Source = null;
Layer.Children.Remove(sImg);
Layer.Children.Remove(canvasTempObject);
}
public async Task <WriteableBitmap> getImage()//得到一个最终拼合图层的位图
{
ScaleTransform st = new ScaleTransform();
st.ScaleX = 1 / ScalePercent;
st.ScaleY = 1 / ScalePercent;
DCTestLibrary.PhotoTest pt = new DCTestLibrary.PhotoTest();
var tp = PhotoLayers.RenderTransform as TransformGroup;
if (tp != null)
{
tp.Children.Add(st);
}
WriteableBitmap b = await WriteableBitmapHelper.Snapshot(PhotoLayers);
//WriteableBitmap b = new WriteableBitmap(PhotoLayers, null);
return(b);
}