public Shell GetInsidePart()
{
closedBorder.Flatten();
if (!closedBorder.IsClosed)
{
Line l = Line.Construct();
l.SetTwoPoints(closedBorder.EndPoint, closedBorder.StartPoint);
closedBorder.Add(l);
}
vertexToFace = new Face[closedBorder.CurveCount];
for (int i = 0; i < closedBorder.CurveCount; i++)
{
Face fc = FindClosestFace(closedBorder.Curve(i).StartPoint);
if (fc == null)
{
throw new SplitShellWithCurvesException();
}
vertexToFace[i] = fc;
}
all2DCurves = new Dictionary <Face, List <ICurve2D> >();
splitedEdges = new Dictionary <Edge, List <double> >();
for (int i = 0; i < vertexToFace.Length; i++)
{
InsertCurve(i);
}
// jetzt die Faces beschneiden und eine neue Shell bauen
Vertex[] vertices = shell.Vertices;
outsideVertices = new Set <Vertex>();
for (int i = 0; i < vertices.Length; i++)
{ // wenn der Vertex eine Außenkante hat, dann gilt er als außenliegend
Edge[] vedges = vertices[i].Edges;
for (int j = 0; j < vedges.Length; j++)
{
if (vedges[j].SecondaryFace == null)
{
FollowVertex(vertices[j]);
}
}
}
#if DEBUG
DebuggerContainer dc = new DebuggerContainer();
foreach (Vertex vtx in outsideVertices)
{
Point pnt = Point.Construct();
pnt.Location = vtx.Position;
pnt.Symbol = PointSymbol.Circle;
dc.Add(pnt, vtx.GetHashCode());
}
#endif
// alle Faces, die aufgesplitted werden müssen:
Set <Face> splittedFaces = new Set <Face>();
foreach (Edge edge in splitedEdges.Keys)
{
splittedFaces.Add(edge.PrimaryFace);
if (edge.SecondaryFace != null)
{
splittedFaces.Add(edge.SecondaryFace);
}
}
resultingFaces = new List <Face>();
for (int i = 0; i < shell.Faces.Length; i++)
{
Face face = shell.Faces[i];
if (splittedFaces.Contains(face))
{
AddSplittedFace(face);
}
else
{
if (!outsideVertices.Contains(face.Vertices[0]))
{
resultingFaces.Add(face.Clone() as Face);
}
}
}
GeoObjectList res = Make3D.SewFacesAndShells(new GeoObjectList(resultingFaces.ToArray()));
if (res.Count == 1)
{
return(res[0] as Shell);
}
return(null);
}