public override void Render(ViewPort port, Graphics canvas, Pen pen)
{
var polyPath = new GraphicsPath();
polyPath.AddPolygon((from p in IterPoints() select(PointF) port.ScreenCoord(p.X, p.Y)).ToArray());
if (holes != null)
{
foreach (var poly in holes)
{
polyPath.AddPolygon((from p in poly.IterPoints() select(PointF) port.ScreenCoord(p.X, p.Y)).ToArray());
}
}
canvas.FillPath(pen.Brush, polyPath);
}
// 绘制接口
public override void Render(ViewPort port, Graphics canvas, Pen pen)
{
PointF pt = port.ScreenCoord(X, Y);
canvas.DrawLine(pen, pt, new PointF(pt.X, pt.Y + 0.01f));
}