public override void Render(Graphics gr, GraphicsPath path)
{
var color1 = Color;
var color2 = ColorShadow;
var light = Direction.Normalized();
var flatten = (GraphicsPath)path.Clone();
flatten.Flatten();
//get points from the path
var points = flatten.PathPoints;
var types = flatten.PathTypes;
var pen = new Pen(Color.Black, Distance + 1);
pen.StartCap = pen.EndCap = LineCap.Flat;
//
void Render(int from, int to)
{
for (int i = from; i <= to; i++)
{
var p1 = points[i];
var p2 = i == to ? points[from] : points[i + 1];
var dir = p2.Sub(p1).Normalized();
var n = new PointF(-dir.Y, dir.X);
var dot = n.DotScalar(light);
var c = GraphicsHelper.Lerp(ColorShadow, Color, (dot + 1) / 2f);
pen.Color = c;
gr.DrawLine(pen, p1, p2);
}
}
var start = 0;
for (int i = 1; i < points.Length; i++)
{
if ((types[i] == 0xa1 || types[i] == 0xa3 || types[i] == 129))//end of figure
{
if (start >= 0)
{
Render(start, i);
}
start = i + 1;
}
}
if (start < points.Length)
{
Render(start, points.Length - 1);
}
pen.Dispose();
}