public static void DrawPolygon(D2D1.RenderTarget renderTarget, D2D1.Factory factory, IPolygon pol, D2D1.Brush brush, D2D1.Brush pen, float penWidth, D2D1.StrokeStyle penStrokeStyle, bool clip, Map map)
{
if (pol.ExteriorRing == null)
return;
Vector2[] points;
var startPoint = TransformToImage(pol.ExteriorRing, map, out points);
if (points.Length > 1)
{
using (var geom = new D2D1.PathGeometry(factory))
{
using (var gs = geom.Open())
{
gs.SetFillMode(D2D1.FillMode.Alternate);
gs.BeginFigure(startPoint, D2D1.FigureBegin.Filled);
gs.AddLines(points);
gs.EndFigure(D2D1.FigureEnd.Closed);
for (var i = 0; i < pol.NumInteriorRings; i++)
{
startPoint = TransformToImage(pol.GetInteriorRingN(i), map, out points);
if (points.Length > 1)
{
gs.BeginFigure(startPoint, D2D1.FigureBegin.Filled);
gs.AddLines(points);
gs.EndFigure(D2D1.FigureEnd.Closed);
}
}
gs.Close();
}
if (brush != null)
renderTarget.FillGeometry(geom, brush);
if (pen != null)
renderTarget.DrawGeometry(geom, pen, penWidth, penStrokeStyle);
}
}
}
/// <summary>
/// Renders a LineString to the map.
/// </summary>
/// <param name="renderTarget">The render target</param>
/// <param name="factory">The factory to create shapes</param>
/// <param name="line">LineString to render</param>
/// <param name="pen">Pen style used for rendering</param>
/// <param name="map">Map reference</param>
/// <param name="offset">Offset by which line will be moved to right</param>
public static void DrawLineString(D2D1.RenderTarget renderTarget, D2D1.Factory factory, ILineString line, D2D1.Brush pen, float penWidth, D2D1.StrokeStyle penStrokeStyle, Map map, float offset)
{
var points = TransformToImage(line, map);
if (points.Length > 1)
{
using (var geom = new D2D1.PathGeometry(factory))
{
using (var gs = geom.Open())
{
gs.BeginFigure(points[0], D2D1.FigureBegin.Filled);
gs.AddLines(points);
gs.EndFigure(D2D1.FigureEnd.Open);
gs.Close();
}
renderTarget.DrawGeometry(geom, pen, penWidth, penStrokeStyle);
}
}
}
