public RayedMesh(int dimension, Factory factory) : base(dimension, factory)
{
BoundaryFace = Factory.CreateFace();
// ReSharper disable once VirtualMemberCallInConstructor
FacesInternal.Add(BoundaryFace);
// ReSharper disable once PossibleNullReferenceException
// ReSharper disable once VirtualMemberCallInConstructor
(BoundaryFace as IBoundary).IsBoundaryAccessor = true;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Finalizes the mesh. </summary>
///
/// <remarks> Sets up the outside edges. Is it possible we could end up
/// in an infinite loop that never returns to the original _boundaryFace.HalfEdge?
/// Needs mulling over. Only way that could happen is two incoming boundaries meet at a
/// single vertex. We're checking if more that one outside edge exit from a node but
/// not two incoming outside edges. I think that this may be impossible. Needs more
/// mulling over.
/// Darrell Plank, 12/7/2017. </remarks>
////////////////////////////////////////////////////////////////////////////////////////////////////
protected override void FinalizeHook()
{
while (_boundaryEdges.Count > 0)
{
var curEdge = _boundaryEdges.First();
var boundaryFace = Factory.CreateFace();
FacesInternal.Add(boundaryFace);
BoundaryFaces.Add(boundaryFace);
// ReSharper disable once PossibleNullReferenceException
(boundaryFace as IBoundary).IsBoundaryAccessor = true;
boundaryFace.HalfEdge = curEdge;
if (curEdge.NextEdge != null)
{
// Don't think this can happen
throw new MeshNavException("Internal error");
}
do
{
_boundaryEdges.Remove(curEdge);
var nextVertex = curEdge.NextVertex;
var foundNextEdge = false;
foreach (var nextEdge in MapVerticesToEdges[nextVertex])
{
if (nextEdge.Face == null)
{
if (foundNextEdge)
{
// Uh oh - found three outside edges at this vertex - not good
throw new MeshNavException("Found three outside edges at a node");
}
foundNextEdge = true;
curEdge.NextEdge = nextEdge;
nextEdge.PreviousEdge = curEdge;
curEdge = nextEdge;
curEdge.Face = boundaryFace;
}
}
if (!foundNextEdge)
{
throw new MeshNavException("Outside Edge has no successor");
}
} while (curEdge != boundaryFace.HalfEdge);
}
}
