public static global::Rhino.Geometry.NurbsSurface ToRhino_NurbsSurface(this global::Topologic.NurbsSurface nurbsSurface)
{
int uDegree = nurbsSurface.UDegree;
int vDegree = nurbsSurface.VDegree;
bool isRational = nurbsSurface.IsURational && nurbsSurface.IsVRational;
int uCount = nurbsSurface.NumOfUControlVertices;
int vCount = nurbsSurface.NumOfVControlVertices;
global::Rhino.Geometry.NurbsSurface ghNurbsSurface = global::Rhino.Geometry.NurbsSurface.Create(
3,
isRational,
uDegree + 1,
vDegree + 1,
uCount,
vCount
);
int i = 0;
for (int u = 0; u < uCount; ++u)
{
for (int v = 0; v < vCount; ++v)
{
global::Topologic.Vertex controlVertex = nurbsSurface.ControlVertex(u, v);
ghNurbsSurface.Points.SetPoint(u, v, ToRhino(controlVertex));
++i;
}
}
List <double> uKnots = nurbsSurface.UKnots;
uKnots = uKnots.GetRange(1, uKnots.Count - 2);
for (int u = 0; u < uKnots.Count; u++)
{
ghNurbsSurface.KnotsU[u] = uKnots[u];
}
List <double> vKnots = nurbsSurface.VKnots;
vKnots = vKnots.GetRange(1, vKnots.Count - 2);
for (int v = 0; v < vKnots.Count; v++)
{
ghNurbsSurface.KnotsV[v] = vKnots[v];
}
if (!ghNurbsSurface.IsValid)
{
throw new Exception("A valid surface cannot be created from this Face.");
}
return(ghNurbsSurface);
}
public static global::Topologic.Face ToTopologic(this global::Rhino.Geometry.Surface surface)
{
if (surface == null)
{
return(null);
}
SumSurface sumSurface = surface as SumSurface;
if (sumSurface != null)
{
return(sumSurface.ToTopologic());
}
RevSurface revSurface = surface as RevSurface;
if (revSurface != null)
{
return(revSurface.ToTopologic());
}
PlaneSurface planeSurface = surface as PlaneSurface;
if (planeSurface != null)
{
return(planeSurface.ToTopologic());
}
Extrusion ghExtrusion = surface as Extrusion;
if (ghExtrusion != null)
{
return(ghExtrusion.ToTopologic());
}
global::Rhino.Geometry.NurbsSurface ghNurbsSurface = surface as global::Rhino.Geometry.NurbsSurface;
if (ghNurbsSurface != null)
{
return(ghNurbsSurface.ToTopologic());
}
return(null);
}
public static global::Topologic.Face ToTopologic(this global::Rhino.Geometry.NurbsSurface nurbsSurface)
{
if (nurbsSurface == null)
{
return(null);
}
int uDegree = nurbsSurface.Degree(0);
int vDegree = nurbsSurface.Degree(1);
bool isUPeriodic = nurbsSurface.IsPeriodic(0);
bool isVPeriodic = nurbsSurface.IsPeriodic(1);
bool isRational = nurbsSurface.IsRational;
NurbsSurfaceKnotList ghUKnots = nurbsSurface.KnotsU;
List <double> uKnots = ghUKnots.ToList();
NurbsSurfaceKnotList ghVKnots = nurbsSurface.KnotsV;
List <double> vKnots = ghVKnots.ToList();
// OCCT-compatible
uKnots.Insert(0, uKnots[0]);
uKnots.Add(uKnots.Last());
vKnots.Insert(0, vKnots[0]);
vKnots.Add(vKnots.Last());
NurbsSurfacePointList ghControlPoints = nurbsSurface.Points;
List <IList <Vertex> > controlPoints = new List <IList <Vertex> >();
List <IList <double> > weights = new List <IList <double> >();
for (int i = 0; i < ghControlPoints.CountU; ++i)
{
List <Vertex> controlPoints1D = new List <Vertex>();
List <double> weights1D = new List <double>();
for (int j = 0; j < ghControlPoints.CountV; ++j)
{
ControlPoint ghControlPoint = ghControlPoints.GetControlPoint(i, j);
controlPoints1D.Add(ghControlPoint.Location.ToTopologic());
weights1D.Add(ghControlPoint.Weight);
}
controlPoints.Add(controlPoints1D);
weights.Add(weights1D);
}
return(global::Topologic.Face.ByNurbsParameters(controlPoints, weights, uKnots, vKnots, isRational, isUPeriodic, isVPeriodic, uDegree, vDegree));
}
public static global::Topologic.Face ToTopologic(Extrusion extrusion)
{
global::Rhino.Geometry.NurbsSurface ghNurbsSurface = extrusion?.ToNurbsSurface();
return(ghNurbsSurface?.ToTopologic());
}
public static global::Topologic.Face ToTopologic(this PlaneSurface planeSurface)
{
global::Rhino.Geometry.NurbsSurface ghNurbsSurface = planeSurface?.ToNurbsSurface();
return(ghNurbsSurface?.ToTopologic());
}
