private Brep ToSurface(Face face, double tolerance)
{
Rhino.Geometry.Surface ghSurface = ToRhinoSurface(face);
double width = 0.0, height = 0.0;
bool canGetSurfaceSize = ghSurface.GetSurfaceSize(out width, out height);
if (!canGetSurfaceSize)
{
throw new Exception("Fails to get the surface size.");
}
double maxSize = Math.Max(width, height);
double maxSizeAndMargin = maxSize + 2;
ghSurface = ghSurface.Extend(IsoStatus.North, maxSizeAndMargin, true);
ghSurface = ghSurface.Extend(IsoStatus.South, maxSizeAndMargin, true);
ghSurface = ghSurface.Extend(IsoStatus.West, maxSizeAndMargin, true);
ghSurface = ghSurface.Extend(IsoStatus.East, maxSizeAndMargin, true);
//List<Wire> wires = face.Wires;
//List<GeometryBase> ghGeometryBases = new List<GeometryBase>();
//foreach (Wire wire in wires)
//{
// List<Object> ghCurves = ToCurves(wire);
// foreach (Object ghCurve in ghCurves)
// {
// GeometryBase geometryBase = ghCurve as GeometryBase;
// if (geometryBase != null)
// {
// ghGeometryBases.Add(geometryBase);
// }
// }
//}
//2.Create the Brep
//Brep ghBrep = ghNurbsSurface.ToBrep();
//Brep ghBrep = new Brep();
//// 2a. Add vertices
//List<Vertex> vertices = face.Vertices;
//foreach (Vertex vertex in vertices)
//{
// Point3d ghPoint = ToPoint(vertex);
// BrepVertex ghBrepVertex = ghBrep.Vertices.Add(ghPoint, 0.0);
// String ghBrepVertexLog = "";
// if (!ghBrepVertex.IsValidWithLog(out ghBrepVertexLog))
// {
// throw new Exception("Fails to create a valid BrepVertex with the following message: " + ghBrepVertexLog);
// }
//}
//// 2b. Add 3D curves and edges. The index dictionaries are used to identify the IDs of the edges.
//List<Edge> edges = face.Edges;
//Dictionary<Edge, Tuple<int, int>> edge2DIndices = new Dictionary<Edge, Tuple<int, int>>(); // edge, curve, reverse curve
//Dictionary<Edge, int> edge3DIndices = new Dictionary<Edge, int>();
//Dictionary<Edge, BrepEdge> edgeIndices = new Dictionary<Edge, BrepEdge>();
//foreach (Edge edge in edges)
//{
// Curve ghCurve3D = ToCurve(edge);
// Curve ghCurve2D = ghSurface.Pullback(ghCurve3D, 0.0001);
// // 2D curves --> need to check if the endpoints are near to previously generated points
// // if yes, change the value
// int curve3DID = ghBrep.Curves3D.Add(ghCurve3D);
// int curve2DID = ghBrep.Curves2D.Add(ghCurve2D);
// Curve ghReverseCurve2D = ghCurve2D.DuplicateCurve();
// ghReverseCurve2D.Reverse();
// int reverseCurve2DID = ghBrep.Curves2D.Add(ghReverseCurve2D);
// Point3d ghStartPoint = ghCurve3D.PointAtStart;
// Point3d ghEndPoint = ghCurve3D.PointAtEnd;
// int startVertexIndex = -1;
// int endVertexIndex = -1;
// foreach (BrepVertex ghBrepVertex in ghBrep.Vertices)
// {
// Point3d ghBrepPoint = ghBrepVertex.Location;
// if (startVertexIndex == -1 && ghBrepPoint.DistanceTo(ghStartPoint) < 0.0001)
// {
// startVertexIndex = ghBrepVertex.VertexIndex;
// }
// if (endVertexIndex == -1 && ghBrepPoint.DistanceTo(ghEndPoint) < 0.0001)
// {
// endVertexIndex = ghBrepVertex.VertexIndex;
// }
// }
// BrepEdge ghBrepEdge = ghBrep.Edges.Add(startVertexIndex, endVertexIndex, curve3DID, 0.0001);
// String brepEdgeLog = "";
// if (!ghBrepEdge.IsValidWithLog(out brepEdgeLog))
// {
// throw new Exception("Fails to create a valid BrepEdge with the following message: " + brepEdgeLog);
// }
// edge3DIndices.Add(edge, curve3DID);
// edge2DIndices.Add(edge, Tuple.Create(curve2DID, reverseCurve2DID));
// edgeIndices.Add(edge, ghBrepEdge);
//}
//// 2c. Add surface
//int ghSurfaceIndex = ghBrep.AddSurface(ghSurface);
//// 2d. Add face
//BrepFace ghBrepFace = ghBrep.Faces.Add(ghSurfaceIndex);
//// 2e. Create outer loop
//Wire outerWire = face.ExternalBoundary;
//ProcessFace(outerWire, ref ghBrep, ghBrepFace, BrepLoopType.Outer, ghSurface, edge2DIndices, edgeIndices);
//// 2g. Create inner loops
//List<Wire> innerWires = face.InternalBoundaries;
//foreach (Wire innerWire in innerWires)
//{
// ProcessFace(innerWire, ref ghBrep, ghBrepFace, BrepLoopType.Inner, ghSurface, edge2DIndices, edgeIndices);
//}
//String brepFaceLog = "";
//if (!ghBrepFace.IsValidWithLog(out brepFaceLog))
//{
// throw new Exception("Fails to create a valid Face with the following message: " + brepFaceLog);
//}
//ghBrep.Compact();
List <GeometryBase> ghGeometryBases = new List <GeometryBase>();
List <Edge> outerEdges = face.ExternalBoundary.Edges;
List <Curve> ghCurves = new List <Curve>();
foreach (Edge edge in outerEdges)
{
Curve ghCurve3D = ToCurve(edge);
ghGeometryBases.Add(ghCurve3D);
ghCurves.Add(ghCurve3D);
}
//ghGeometryBases.AddRange(ghBrep.Curves2D);
//ghGeometryBases.AddRange(ghBrep.Trims);
//ghGeometryBases.AddRange(ghBrep.Vertices);
Brep ghBrep2 = Brep.CreatePatch(
ghGeometryBases,
ghSurface,
20,
20,
true,
true,
tolerance,
100.0,
1,
new Boolean[] { true, true, true, true },
tolerance);
//return ghBrep2; // always returns the trimmed surface
BrepFace ghSurfaceAsBrepFace = ghSurface as BrepFace;
if (ghBrep2 == null)
{
return(null);
}
List <Wire> internalBoundaries = face.InternalBoundaries;
if (internalBoundaries.Count == 0)
{
return(ghBrep2);
}
BrepFace ghBrepFace = ghBrep2.Faces[0];
//return ghBrepFace.ToBrep(); // may return the untrimmed surface!
List <Curve> ghInternalCurves = new List <Curve>();
foreach (Wire internalBoundary in internalBoundaries)
{
List <Object> ghCurvesFromWireAsObjects = ToCurves(internalBoundary);
foreach (Object ghCurveFromWireAsObject in ghCurvesFromWireAsObjects)
{
Curve ghCurveFromWire = ghCurveFromWireAsObject as Curve;
if (ghCurveFromWire != null)
{
Curve[] ghPulledCurveFromWire = ghCurveFromWire.PullToBrepFace(ghBrepFace, tolerance);
ghInternalCurves.AddRange(ghPulledCurveFromWire);
}
}
}
//ghCurves.AddRange(ghInternalCurves);
Brep ghBrep3 = ghBrepFace.Split(ghInternalCurves, tolerance);
//return ghBrep3.Faces[0].DuplicateFace(true);
return(ghBrep3.Faces.ExtractFace(0));
//Brep[] ghBreps3 = ghBrep2.Split(ghInternalCurves, 0.0001);
//return ghBreps3.First();
//String brepLog = "";
//if (!ghBrep.IsValidWithLog(out brepLog))
//{
// throw new Exception("Fails to create a valid Brep with the following message: " + brepLog);
//}
//if (!ghBrep.IsValidGeometry(out brepLog))
//{
// throw new Exception("Fails to create a valid Brep with the following message: " + brepLog);
//}
//if (!ghBrep.IsValidTopology(out brepLog))
//{
// throw new Exception("Fails to create a valid Brep with the following message: " + brepLog);
//}
//if (!ghBrep.IsValidTolerancesAndFlags(out brepLog))
//{
// throw new Exception("Fails to create a valid Brep with the following message: " + brepLog);
//}
//return ghBrep;
}
public static Brep ToRhino(global::Topologic.Face face, double tolerance = Core.Tolerance.Distance)
{
Rhino.Geometry.Surface ghSurface = ToRhino(face);
double width = 0.0, height = 0.0;
bool canGetSurfaceSize = ghSurface.GetSurfaceSize(out width, out height);
if (!canGetSurfaceSize)
{
throw new Exception("Fails to get the surface size.");
}
double maxSize = Math.Max(width, height);
double maxSizeAndMargin = maxSize + 2;
ghSurface = ghSurface.Extend(IsoStatus.North, maxSizeAndMargin, true);
ghSurface = ghSurface.Extend(IsoStatus.South, maxSizeAndMargin, true);
ghSurface = ghSurface.Extend(IsoStatus.West, maxSizeAndMargin, true);
ghSurface = ghSurface.Extend(IsoStatus.East, maxSizeAndMargin, true);
List <GeometryBase> ghGeometryBases = new List <GeometryBase>();
IList <Edge> outerEdges = face.ExternalBoundary.Edges;
List <Curve> ghCurves = new List <Curve>();
foreach (Edge edge in outerEdges)
{
Curve ghCurve3D = ToRhino(edge);
ghGeometryBases.Add(ghCurve3D);
ghCurves.Add(ghCurve3D);
}
Brep ghBrep2 = Brep.CreatePatch(
ghGeometryBases,
ghSurface,
20,
20,
true,
true,
tolerance,
100.0,
1,
new Boolean[] { true, true, true, true },
tolerance);
BrepFace ghSurfaceAsBrepFace = ghSurface as BrepFace;
if (ghBrep2 == null)
{
return(null);
}
IList <Wire> internalBoundaries = face.InternalBoundaries;
if (internalBoundaries.Count == 0)
{
return(ghBrep2);
}
BrepFace ghBrepFace = ghBrep2.Faces[0];
List <Curve> ghInternalCurves = new List <Curve>();
foreach (Wire internalBoundary in internalBoundaries)
{
List <Curve> ghCurvesFromWireAsObjects = ToRhino(internalBoundary);
foreach (Curve ghCurveFromWireAsObject in ghCurvesFromWireAsObjects)
{
Curve ghCurveFromWire = ghCurveFromWireAsObject as Curve;
if (ghCurveFromWire != null)
{
Curve[] ghPulledCurveFromWire = ghCurveFromWire.PullToBrepFace(ghBrepFace, tolerance);
ghInternalCurves.AddRange(ghPulledCurveFromWire);
}
}
}
Brep ghBrep3 = ghBrepFace.Split(ghInternalCurves, tolerance);
return(ghBrep3.Faces.ExtractFace(0));
}