public TileSourceImage()
{
// Test image for binding
SourceImage = BitmapFactory.New(512, 512);
// Closed green polyline with P1(10, 5), P2(20, 40), P3(30, 30) and P4(7, 8)
int[] p = new int[] { 10, 5, 20, 40, 30, 30, 7, 8, 10, 5 };
SourceImage.DrawPolyline(p, Colors.Green);
}