private void SetCurveType(Rg.Curve curve)
{
Rg.Circle R = new Rg.Circle();
Rg.Arc A = new Rg.Arc();
Rg.Ellipse S = new Rg.Ellipse();
Rg.Polyline P = new Rg.Polyline();
if (curve.TryGetCircle(out R))
{
curveType = CurveTypes.Circle;
}
else if (curve.TryGetArc(out A))
{
curveType = CurveTypes.Arc;
}
else if (curve.TryGetEllipse(out S))
{
curveType = CurveTypes.Ellipse;
}
else if (curve.IsLinear())
{
curveType = CurveTypes.Line;
}
else if (curve.TryGetPolyline(out P))
{
curveType = CurveTypes.Polyline;
}
else
{
curveType = CurveTypes.Spline;
}
}
/***************************************************/
public static BHG.ICurve FromRhino(this RHG.Curve rCurve)
{
if (rCurve == null)
{
return(null);
}
Type curveType = rCurve.GetType();
if (rCurve.IsLinear() && rCurve.SpanCount < 2)
{
return(new BHG.Line {
Start = rCurve.PointAtStart.FromRhino(), End = rCurve.PointAtEnd.FromRhino(), Infinite = false
});
}
if (rCurve.IsCircle())
{
RHG.Circle circle = new RHG.Circle();
rCurve.TryGetCircle(out circle);
return(circle.FromRhino());
}
else if (rCurve.IsArc() || typeof(RHG.ArcCurve).IsAssignableFrom(curveType))
{
RHG.Arc arc = new RHG.Arc();
rCurve.TryGetArc(out arc);
return(arc.FromRhino());
}
else if (rCurve.IsPolyline() || typeof(RHG.PolylineCurve).IsAssignableFrom(curveType))
{
RHG.Polyline polyline = new RHG.Polyline();
rCurve.TryGetPolyline(out polyline);
return(polyline.FromRhino());
}
else if (rCurve.IsClosed && rCurve.IsEllipse())
{
RHG.Ellipse ellipse = new RHG.Ellipse();
rCurve.TryGetEllipse(out ellipse);
return(ellipse.FromRhino());
}
else if (rCurve is RHG.NurbsCurve)
{
return(((RHG.NurbsCurve)rCurve).FromRhino());
}
else if (rCurve is RHG.PolyCurve)
{
return(((RHG.PolyCurve)rCurve).FromRhino()); //The test of IsPolyline above is very important to make sure we can cast to PolyCurve here
}
else
{
return((rCurve.ToNurbsCurve()).FromRhino());
}
}