private void BuildPlusShape(double square_size, Dictionary <string, object> args = null)
{
Svg.BeginGroup(args)
.Rect(square_size, 0, square_size, square_size * 3)
.Rect(0, square_size, square_size * 3, square_size)
.EndGroup();
}
private void BuildChevronShape(double width, double height, Dictionary <string, object> args = null)
{
var e = height * 0.66;
Svg.BeginGroup(args)
.PolyLine(string.Format("0,0,{0},{1},{2},{3},0,{4},0,0",
width / 2, height - e, width / 2, height, e))
.PolyLine(string.Format("{0},{1},{2},0,{3},{4},{5},{6},{7},{8}",
width / 2, height - e, width, width, e, width / 2, height, width / 2, height - e))
.EndGroup();
}