/// <summary>
/// Generates a rectangular polycurve on the XY plane centred on the origin
/// </summary>
/// <param name="depth">The depth of the rectangle</param>
/// <param name="width">The width of the rectangle</param>
/// <returns></returns>
public static PolyCurve Rectangle(double depth, double width, double cornerRadius = 0.0)
{
cornerRadius = Math.Max(cornerRadius, 0.0);
double x = width / 2;
double y = depth / 2;
double x2 = Math.Max(x - cornerRadius, 0.0);
double y2 = Math.Max(y - cornerRadius, 0.0);
PolyCurve result = new PolyCurve(new Line(x2, y, -x2, y));
if (cornerRadius > 0)
{
result.AddArcTangent(new Vector(-1, 0), new Vector(-x, y2));
}
result.AddLine(-x, -y2);
if (cornerRadius > 0)
{
result.AddArcTangent(new Vector(0, -1), new Vector(-x2, -y));
}
result.AddLine(x2, -y);
if (cornerRadius > 0)
{
result.AddArcTangent(new Vector(1, 0), new Vector(x, -y2));
}
result.AddLine(x, y2);
if (cornerRadius > 0)
{
result.AddArcTangent(new Vector(0, 1), new Vector(x2, y));
}
return(result);
}
