public override Exp Radius()
{
return(Exp.Abs(radius));
}
public override ExpVector PointOn(Exp t)
{
var angle = t * 2.0 * Math.PI;
return(basis.TransformPosition(new ExpVector(Exp.Cos(angle) * Exp.Abs(r0), Exp.Sin(angle) * Exp.Abs(r1), 0.0)));
}