/// <summary>
/// Create Edge (Line or Arc1) from Rhino LineCurve or open ArcCurve.
/// </summary>
public static Geometry.Edge FromRhinoLineOrArc1(this Rhino.Geometry.Curve obj)
{
// check length
if (obj.GetLength() < FemDesign.Tolerance.Point3d)
{
throw new System.ArgumentException("Curve has no length.");
}
// if ArcCurve
if (obj.GetType() == typeof(Rhino.Geometry.ArcCurve))
{
Rhino.Geometry.ArcCurve arcCurve = (Rhino.Geometry.ArcCurve)obj;
// if Arc
if (!obj.IsClosed)
{
return(arcCurve.FromRhinoArc1());
}
else
{
throw new System.ArgumentException($"Curve type: {obj.GetType()}, is not Line or Arc.");
}
}
// if LineCurve
else if (obj.GetType() == typeof(Rhino.Geometry.LineCurve))
{
return(((Rhino.Geometry.LineCurve)obj).FromRhinoLineCurve());
}
// if PolylineCurve
else if (obj.GetType() == typeof(Rhino.Geometry.PolylineCurve))
{
if (obj.SpanCount == 1)
{
Rhino.Geometry.LineCurve lnCrv = new Rhino.Geometry.LineCurve(obj.PointAtStart, obj.PointAtEnd);
return(lnCrv.FromRhinoLineCurve());
}
else
{
throw new System.ArgumentException($"PolylineCurve with SpanCount: {obj.SpanCount}, is not supported for conversion to an Edge.");
}
}
else
{
throw new System.ArgumentException($"Curve type: {obj.GetType()}, is not Line or Arc.");
}
}
/// <summary>
/// Convert a Rhino Curve to Edge
/// </summary>
/// <param name="obj"></param>
/// <param name="arcType1">True if output is general purpose Edge. False if output is BarPart Edge.</param>
/// <returns></returns>
public static Geometry.Edge FromRhino(this Rhino.Geometry.Curve obj)
{
// check length
if (obj.GetLength() < FemDesign.Tolerance.Point3d)
{
throw new System.ArgumentException("Curve has no length.");
}
// if ArcCurve
if (obj.GetType() == typeof(Rhino.Geometry.ArcCurve))
{
Rhino.Geometry.ArcCurve arcCurve = (Rhino.Geometry.ArcCurve)obj;
// if Arc
if (!obj.IsClosed)
{
return(arcCurve.FromRhinoArc1());
}
// if Circle
else
{
return(arcCurve.FromRhinoCircle());
}
}
// if LineCurve
else if (obj.GetType() == typeof(Rhino.Geometry.LineCurve))
{
return(((Rhino.Geometry.LineCurve)obj).FromRhinoLineCurve());
}
// if NurbsCurve
else if (obj.GetType() == typeof(Rhino.Geometry.NurbsCurve))
{
return(((Rhino.Geometry.NurbsCurve)obj).FromRhinoNurbsCurve());
}
// else
else
{
throw new System.ArgumentException($"Curve type: {obj.GetType()}, is not supported for conversion to an Edge.");
}
}