public GeometryConverter()
{
var ptConv = AddConverter(new PointConverter(_pt3dConv));
var curveConv = new CurveConverter(_pt3dConv, _arcConv, _lineConv);
AddConverter(curveConv);
var meshConv = AddConverter(new MeshConverter(_pt3fConv));
var surfaceConverter = new SurfaceConverter(curveConv, _vec3DConv, _pt3dConv);
AddConverter(surfaceConverter);
var brepConv = new BrepConverter(surfaceConverter, curveConv, _pt3dConv);
AddConverter(brepConv);
}
public static bool TryCreateBrepWithBuiltInMethods(pps.PolySurface pb, out Brep brep, SurfaceConverter surfConv, CurveConverter curveConv)
{
if (pb.Surfaces.Count <= 0)
{
brep = null;
return(true);
}
brep = null;
try
{
int attempts = 0;
while (attempts < 15)
{
if (pb.Surfaces.Count == 1)
{
var surf = pb.Surfaces.FirstOrDefault();
brep = GetTrimmedBrep(surf, surfConv, curveConv);
}
else
{
for (int i = 0; i < pb.Surfaces.Count; i++)
{
pps.Surface s = pb.Surfaces[i];
var subrep = GetTrimmedBrep(s, surfConv, curveConv);
if (!subrep.IsValid)
{
subrep.Repair(Rhino.RhinoMath.ZeroTolerance);
}
if (i == 0)
{
brep = subrep;
}
else
{
//brep = Brep.MergeSurfaces(brep, subrep, Rhino.RhinoMath.ZeroTolerance,
// Rhino.RhinoMath.ZeroTolerance, Point2d.Unset, Point2d.Unset, 0.0, true) ??
// Brep.MergeSurfaces(brep, subrep, Rhino.RhinoMath.ZeroTolerance, Rhino.RhinoMath.ZeroTolerance) ??
// Brep.JoinBreps(new List<Brep>() { brep, subrep }, Rhino.RhinoMath.ZeroTolerance).First();
brep = Brep.MergeBreps(new List <Brep>()
{
brep, subrep
}, Rhino.RhinoMath.ZeroTolerance);
}
}
}
attempts += 1;
//not doing anymore attempts if this time was successful
if (!brep.IsValid)
{
brep.Repair(Rhino.RhinoMath.ZeroTolerance);
}
if (brep.IsValid)
{
break;
}
}
if (!brep.IsValid)
{
brep.Repair(Rhino.RhinoMath.ZeroTolerance);
}
return(brep.IsValid);
}
catch (Exception e)
{
brep = null;
return(false);
}
}
public static Brep GetTrimmedBrep(pps.Surface surface, SurfaceConverter surfConv, CurveConverter curveConv)
{
var rhSurf = surfConv.FromPipe <Surface, pps.Surface>(surface);
var brep = Brep.CreateFromSurface(rhSurf);
if (!brep.IsValid)
{
brep.Repair(Rhino.RhinoMath.ZeroTolerance);
}
if (typeof(pps.NurbsSurface).IsAssignableFrom(surface.GetType()) &&
((pps.NurbsSurface)surface).TrimCurves.Count > 0)
{
List <ppc.Curve> trims = ((pps.NurbsSurface)surface).TrimCurves;
List <ppc.Curve> loops = brep.Faces.First().Loops.Select((l) =>
curveConv.ToPipe <Curve, ppc.Curve>(l.To3dCurve())).ToList();
if (!PipeDataUtil.EqualIgnoreOrder(loops, trims))
{
var rhTrims = trims.Select((c) => {
var cur = curveConv.FromPipe <Curve, ppc.Curve>(c);
var cur2d = rhSurf.Pullback(cur, Rhino.RhinoMath.ZeroTolerance);
return(rhSurf.Pushup(cur2d, Rhino.RhinoMath.ZeroTolerance));
}).ToList();
var faceToSplit = brep.Faces.First();
var brep2 = faceToSplit.Split(rhTrims, Rhino.RhinoMath.ZeroTolerance);
if (brep2 != null && !brep2.IsValid)
{
brep2.Repair(Rhino.RhinoMath.ZeroTolerance);
}
if (brep2 != null && brep2.IsValid)
{
brep = GetEnclosedFacesAsBrep(brep2, rhTrims) ?? brep2;
}
}
}
return(brep);
}
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);
}
));
}
public BrepConverter(SurfaceConverter surfConv, CurveConverter curveConv, Point3dConverter ptConv) :
base(
(rb) => {
List <pps.Surface> faces = new List <pps.Surface>();
List <List <int> > adjacency = new List <List <int> >();
for (int i = 0; i < rb.Faces.Count; i++)
{
var surf = (pps.NurbsSurface)surfConv.ToPipe <rh.Surface, pps.Surface>(rb.Faces[i].ToNurbsSurface());
surf.OuterTrims.Clear();
surf.OuterTrims.AddRange(rb.Faces[i].Loops.Where((l) =>
l.LoopType == rh.BrepLoopType.Outer).Select((l) =>
curveConv.ToPipe <rh.Curve, ppc.Curve>(l.To3dCurve())));
surf.InnerTrims.Clear();
surf.InnerTrims.AddRange(rb.Faces[i].Loops.Where((l) =>
l.LoopType == rh.BrepLoopType.Inner).Select((l) =>
curveConv.ToPipe <rh.Curve, ppc.Curve>(l.To3dCurve())));
faces.Add(surf);
adjacency.Add(rb.Faces[i].AdjacentFaces().ToList());
}
var polySurf = new pps.PolySurface(faces, adjacency);
polySurf.IsSolid = rb.IsSolid;
return(polySurf);
},
(pb) => {
if (pb.Surfaces.Count <= 0)
{
return(null);
}
rh.Brep brep = null;
//trying to create a trimmed brep with built in methods
if (Util.TryCreateBrepWithBuiltInMethods(pb, out brep, surfConv, curveConv))
{
return(brep);
}
//attemping to build it from scratch - 15 attempts
int attempts = 0;
while (attempts < 15)
{
brep = new rh.Brep();
var ptCloud = new rh.PointCloud(pb.Vertices().Select((p) => ptConv.FromPipe <rh.Point3d, pp.Vec>(p)));
var ptList = ptCloud.GetPoints().ToList();
ptList.ForEach((p) => brep.Vertices.Add(p, Rhino.RhinoMath.ZeroTolerance));
var ppEdges = pb.Edges();
foreach (var ppCur in ppEdges)
{
var rhCurve = curveConv.FromPipe <rh.Curve, ppc.Curve>(ppCur);
int curveIndex = brep.Curves3D.Add(rhCurve);
int startIndex = ptCloud.ClosestPoint(rhCurve.PointAtStart);
int endIndex = ptCloud.ClosestPoint(rhCurve.PointAtEnd);
var edge = brep.Edges.Add(startIndex, endIndex, curveIndex, Rhino.RhinoMath.ZeroTolerance);
}
foreach (var ppSurf in pb.Surfaces)
{
var rhSurf = surfConv.FromPipe <rh.Surface, pps.Surface>(ppSurf);
var surfIndex = brep.AddSurface(rhSurf);
var face = brep.Faces.Add(surfIndex);
var loop = brep.Loops.Add(rh.BrepLoopType.Outer, face);
var surfEdges = ppSurf.Edges();
int loopCount = 0;
foreach (var ppLoop in surfEdges)
{
var rhCurve = curveConv.FromPipe <rh.Curve, ppc.Curve>(ppLoop);
var curve2d = rhSurf.Pullback(rhCurve, Rhino.RhinoMath.ZeroTolerance);
if (curve2d == null)
{
continue;
}
loopCount += 1;
int c2i = brep.Curves2D.Add(curve2d);
int c3i = ppEdges.IndexOf(ppLoop);
if (c3i == -1)
{
c3i = brep.Curves3D.Add(rhCurve);
}
int startIndex = ptCloud.ClosestPoint(rhCurve.PointAtStart);
int endIndex = ptCloud.ClosestPoint(rhCurve.PointAtEnd);
var trim = brep.Trims.Add(brep.Edges[c3i], false, loop, c2i);
trim.IsoStatus = rh.IsoStatus.None;
trim.TrimType = rh.BrepTrimType.Boundary;
trim.SetTolerances(0.0, 0.0);
}
if (loopCount == 0)
{
var curve2d = Util.Get2dEdgeLoop(rhSurf);
int c2i = brep.Curves2D.Add(curve2d);
var curve3d = rhSurf.Pushup(curve2d, Rhino.RhinoMath.ZeroTolerance);
int c3i = brep.Curves3D.Add(curve3d);
int startIndex = ptCloud.ClosestPoint(curve3d.PointAtStart);
int endIndex = ptCloud.ClosestPoint(curve3d.PointAtEnd);
var edge = brep.Edges.Add(startIndex, endIndex, c3i, Rhino.RhinoMath.ZeroTolerance);
var trim = brep.Trims.Add(brep.Edges[c3i], false, loop, c2i);
trim.IsoStatus = rh.IsoStatus.None;
trim.TrimType = rh.BrepTrimType.Boundary;
trim.SetTolerances(0.0, 0.0);
}
//var uSurfDom = rhSurf.Domain(0);
//var vSurfDom = rhSurf.Domain(1);
//var ufaceDom = face.Domain(0);
//var vfaceDom = face.Domain(1);
//var surfNorm = rhSurf.NormalAt(uSurfDom.Mid, vSurfDom.Mid);
//var faceNorm = face.NormalAt(ufaceDom.Mid, vfaceDom.Mid);
//face.OrientationIsReversed = rh.Vector3d.Multiply(surfNorm, faceNorm) < 0;
face.OrientationIsReversed = false;
}
//updating attempts and breaking if succeeded
attempts += 1;
if (brep.IsValid)
{
break;
}
}
string msg;
if (!brep.IsValidWithLog(out msg))
{
System.Diagnostics.Debug.WriteLine(msg);
brep.Repair(Rhino.RhinoMath.ZeroTolerance);
if (brep.IsValid)
{
return(brep);
}
//finally attemping to create an untrimmed brep
int attempt = 0;
while (!brep.IsValid && attempt < 15)
{
brep = rh.Brep.MergeBreps(pb.Surfaces.Select((s) =>
rh.Brep.CreateFromSurface(surfConv.FromPipe <rh.Surface, pps.Surface>(s))),
Rhino.RhinoMath.ZeroTolerance);
attempt += 1;
}
if (!brep.IsValid)
{
throw new InvalidOperationException("Failed to create a valid brep from " +
"received data because: \n" + msg);
}
}
return(brep);
}
)
{ }
