//DrawingVisual Approach
public Path AsTileUsingDrawingVisual(List <SqlGeometry> geometries, List <string> labels, double mapScale, TileInfo region, double tileWidth, double tileHeight, RectangleGeometry area, Func <Point, Point> viewTransform, sb.BoundingBox totalExtent)
{
if (geometries == null)
{
return(null);
}
//Pen pen = new Pen(this.VisualParameters.Stroke, this.VisualParameters.StrokeThickness);
//if (this.VisualParameters.DashStyle != null)
//{
// pen.DashStyle = this.VisualParameters.DashStyle;
//}
var pen = this.VisualParameters.GetWpfPen();
Brush brush = this.VisualParameters.Fill;
var transform = MapToTileScreenWpf(totalExtent, region.WebMercatorExtent, viewTransform);
var drawingVisual = new SqlSpatialToDrawingVisual().ParseSqlGeometry(geometries, transform, pen, brush, this.VisualParameters.PointSize, this.PointSymbol);
RenderTargetBitmap image = new RenderTargetBitmap((int)tileWidth, (int)tileHeight, 96, 96, PixelFormats.Pbgra32);
image.Render(drawingVisual);
if (labels != null)
{
this.DrawLabels(labels, geometries, image, transform);
}
image.Freeze();
Path path = new Path()
{
Data = area,
Tag = new LayerTag(mapScale)
{
Layer = this, IsTiled = true, Tile = region, IsDrawn = true, IsNew = true
}
};
this.Element = path;
path.Fill = new ImageBrush(image);
return(path);
}
//DrawingVisual Approach
public Path AsDrawingVisual(List <SqlGeometry> geometries, List <string> labels, double mapScale, sb.BoundingBox exactCurrentExtent, double width, double height, Func <Point, Point> mapToScreen, RectangleGeometry area)
{
if (geometries == null)
{
return(null);
}
//Pen pen = new Pen(this.VisualParameters.Stroke, this.VisualParameters.StrokeThickness);
//pen.DashStyle = this.VisualParameters.DashStyle;
var pen = this.VisualParameters.GetWpfPen();
Brush brush = this.VisualParameters.Fill;
DrawingVisual drawingVisual = new SqlSpatialToDrawingVisual().ParseSqlGeometry(geometries, i => mapToScreen(i), pen, brush, this.VisualParameters.PointSize, this.PointSymbol);
RenderTargetBitmap image = new RenderTargetBitmap((int)width, (int)height, 96, 96, PixelFormats.Pbgra32);
image.Render(drawingVisual);
if (this.IsLabeled(mapScale))
{
this.DrawLabels(labels, geometries, image, mapToScreen);
}
image.Freeze();
Path path = new Path()
{
Data = area,
Tag = new LayerTag(mapScale)
{
Layer = this, IsTiled = false
}
};
this.Element = path;
path.Fill = new ImageBrush(image);
return(path);
}
