public SurfaceConverter(CurveConverter curveConv, Vector3DConverter vecConv, Point3dConverter ptConv) { //extrusion surfaces AddConverter(new PipeConverter <rh.Extrusion, pps.Extrusion>( (rhE) => { ppc.Line path = (ppc.Line)curveConv.ConvertToPipe <rh.Curve, ppc.Curve>(rhE.PathLineCurve()); pps.Extrusion extr = new pps.Extrusion(curveConv.ConvertToPipe <rh.Curve, ppc.Curve>(rhE.Profile3d(0, 0)), vecConv.ConvertToPipe <rh.Vector3d, pp.Vec>(rhE.PathTangent), path.Length); for (int i = 1; i < rhE.ProfileCount; i++) { extr.Holes.Add(curveConv.ConvertToPipe <rh.Curve, ppc.Curve>(rhE.Profile3d(i, 0))); } extr.CappedAtStart = rhE.IsCappedAtBottom; extr.CappedAtEnd = rhE.IsCappedAtTop; extr.SurfaceNormal = vecConv.ToPipe <rh.Vector3d, pp.Vec>(rhE.NormalAt(rhE.Domain(0).Mid, rhE.Domain(1).Mid)); return(extr); }, (ppE) => { if (1 - ppE.Direction.Dot(new pp.Vec(0, 0, 1)) > 1e-3) { //the extrusion is not vertical throw new InvalidOperationException("Cannot create this extrusion. " + "Try converting it into a polysurface and pushing it again"); } var profile = curveConv.FromPipe <rh.Curve, ppc.Curve>(ppE.ProfileCurve); rh.Extrusion extr = rh.Extrusion.Create(profile, ppE.Height, ppE.CappedAtEnd || ppE.CappedAtStart); ppE.Holes.ForEach((h) => extr.AddInnerProfile(curveConv.FromPipe <rh.Curve, ppc.Curve>(h))); //extr.SetOuterProfile(profile, false); //extr.SetPathAndUp(profile.PointAtStart, profile.PointAtStart + pathVec, pathVec); string msg; if (!extr.IsValidWithLog(out msg)) { System.Diagnostics.Debug.WriteLine(msg); throw new InvalidOperationException("Cannot create a valid extrusion from the received data: \n" + msg); } var rhNorm = extr.NormalAt(extr.Domain(0).Mid, extr.Domain(1).Mid); if (rh.Vector3d.Multiply(rhNorm, vecConv.FromPipe <rh.Vector3d, pp.Vec>(ppE.SurfaceNormal)) < 0) { //extrusions don't need to be flipped; } return(extr); } )); //NurbsSurfaces AddConverter(new PipeConverter <rh.NurbsSurface, pps.NurbsSurface>( (rns) => { pps.NurbsSurface nurbs = new pps.NurbsSurface(rns.Points.CountU, rns.Points.CountV, rns.Degree(0), rns.Degree(1)); for (int u = 0; u < rns.Points.CountU; u++) { for (int v = 0; v < rns.Points.CountV; v++) { nurbs.SetControlPoint(ptConv.ToPipe <rh.Point3d, pp.Vec>(rns.Points.GetControlPoint(u, v).Location), u, v); nurbs.SetWeight(rns.Points.GetControlPoint(u, v).Weight, u, v); } } rh.Interval uDomain = rns.Domain(0); rh.Interval vDomain = rns.Domain(1); Func <double, rh.Interval, double> scaleKnot = (k, domain) => (k - domain.Min) / (domain.Length); nurbs.UKnots = rns.KnotsU.Select((k) => scaleKnot.Invoke(k, uDomain)).ToList(); nurbs.VKnots = rns.KnotsV.Select((k) => scaleKnot.Invoke(k, vDomain)).ToList(); nurbs.IsClosedInU = rns.IsClosed(0); nurbs.IsClosedInV = rns.IsClosed(1); nurbs.SurfaceNormal = vecConv.ToPipe <rh.Vector3d, pp.Vec>(rns.NormalAt(rns.Domain(0).Mid, rns.Domain(1).Mid)); return(nurbs); }, (pns) => { if (pns.IsClosedInU) { pns.WrapPointsToCloseSurface(0); } if (pns.IsClosedInV) { pns.WrapPointsToCloseSurface(1); } var nurbs = rh.NurbsSurface.Create(3, true, pns.UDegree + 1, pns.VDegree + 1, pns.UCount, pns.VCount); for (int u = 0; u < pns.UCount; u++) { for (int v = 0; v < pns.VCount; v++) { var cp = new rh.ControlPoint(ptConv.FromPipe <rh.Point3d, pp.Vec>(pns.GetControlPointAt(u, v)), pns.GetWeightAt(u, v)); nurbs.Points.SetControlPoint(u, v, cp); } } rh.Interval uDomain = nurbs.Domain(0); rh.Interval vDomain = nurbs.Domain(1); Func <double, rh.Interval, double> scaleKnot = (k, domain) => k * (domain.Length) + domain.Min; if (nurbs.KnotsU.Count == pns.UKnots.Count) { for (int i = 0; i < nurbs.KnotsU.Count; i++) { nurbs.KnotsU[i] = scaleKnot.Invoke(pns.UKnots[i], uDomain); } } if (nurbs.KnotsV.Count == pns.VKnots.Count) { for (int i = 0; i < nurbs.KnotsV.Count; i++) { nurbs.KnotsV[i] = scaleKnot.Invoke(pns.VKnots[i], vDomain); } } string msg; if (!nurbs.IsValidWithLog(out msg)) { System.Diagnostics.Debug.WriteLine(msg); if (!nurbs.IsPeriodic(0)) { nurbs.KnotsU.CreateUniformKnots(1.0 / (nurbs.Points.CountU)); } else { nurbs.KnotsU.CreatePeriodicKnots(1.0 / (nurbs.Points.CountU)); } if (!nurbs.IsPeriodic(1)) { nurbs.KnotsV.CreateUniformKnots(1.0 / (nurbs.Points.CountV)); } else { nurbs.KnotsV.CreatePeriodicKnots(1.0 / (nurbs.Points.CountV)); } if (!nurbs.IsValid) { throw new InvalidOperationException("Cannot create a valid NURBS surface: \n" + msg); } } var rhNorm = nurbs.NormalAt(nurbs.Domain(0).Mid, nurbs.Domain(1).Mid); if (rh.Vector3d.Multiply(rhNorm, vecConv.FromPipe <rh.Vector3d, pp.Vec>(pns.SurfaceNormal)) < 0) { //need not flip rhino surfaces } return(nurbs); } )); }