public static Surface ToRhinoSurface(DB.RuledFace face, double relativeTolerance)
{
using (var surface = face.GetSurface() as DB.RuledSurface)
{
if (surface.MatchesParametricOrientation())
{
return(FromRuledSurface
(
new DB.Curve[] { surface.GetFirstProfileCurve(), surface.GetSecondProfileCurve() },
surface.HasFirstProfilePoint() ? surface.GetFirstProfilePoint() : null,
surface.HasSecondProfilePoint() ? surface.GetSecondProfilePoint() : null,
face.GetBoundingBox(),
relativeTolerance
));
}
else
{
return(FromRuledSurface
(
new DB.Curve[] { surface.GetFirstProfileCurve().CreateReversed(), surface.GetSecondProfileCurve().CreateReversed() },
surface.HasFirstProfilePoint() ? surface.GetFirstProfilePoint() : null,
surface.HasSecondProfilePoint() ? surface.GetSecondProfilePoint() : null,
face.GetBoundingBox(),
relativeTolerance
));
}
}
}
public static Surface ToRhinoSurface(DB.RuledFace face, double relativeTolerance)
{
NurbsSurface nurbsSurface = default;
try
{
#if REVIT_2021
using (var surface = DB.ExportUtils.GetNurbsSurfaceDataForSurface(face.GetSurface()))
nurbsSurface = ToRhino(surface, face.GetBoundingBox());
#else
using (var surface = DB.ExportUtils.GetNurbsSurfaceDataForFace(face))
nurbsSurface = ToRhino(surface, face.GetBoundingBox());
#endif
}
catch (Autodesk.Revit.Exceptions.ApplicationException) { }
if (nurbsSurface is null)
{
return(face.IsExtruded ?
FromExtrudedSurface
(
new DB.Curve[] { face.get_Curve(0), face.get_Curve(1) },
face.GetBoundingBox(),
relativeTolerance
) :
FromRuledSurface
(
new DB.Curve[] { face.get_Curve(0), face.get_Curve(1) },
face.get_Curve(0) is null ? face.get_Point(0) : null,
face.get_Curve(1) is null ? face.get_Point(1) : null,
face.GetBoundingBox(),
relativeTolerance
));
}
else
{
double ctol = relativeTolerance * Revit.ShortCurveTolerance * 5.0;
if (ctol != 0.0)
{
// Extend using smooth way avoids creating C2 discontinuities
nurbsSurface = nurbsSurface.Extend(IsoStatus.West, ctol, true) as NurbsSurface ?? nurbsSurface;
nurbsSurface = nurbsSurface.Extend(IsoStatus.East, ctol, true) as NurbsSurface ?? nurbsSurface;
nurbsSurface = nurbsSurface.Extend(IsoStatus.South, ctol, true) as NurbsSurface ?? nurbsSurface;
nurbsSurface = nurbsSurface.Extend(IsoStatus.North, ctol, true) as NurbsSurface ?? nurbsSurface;
}
}
return(nurbsSurface);
}