AddWinding() public static method

public static AddWinding ( LibTessDotNet.MeshUtils.Edge eDst, LibTessDotNet.MeshUtils.Edge eSrc ) : void
eDst LibTessDotNet.MeshUtils.Edge
eSrc LibTessDotNet.MeshUtils.Edge
return void
Beispiel #1
0
 private void RemoveDegenerateFaces()
 {
     MeshUtils.Face next;
     for (MeshUtils.Face face = _mesh._fHead._next; face != _mesh._fHead; face = next)
     {
         next = face._next;
         MeshUtils.Edge anEdge = face._anEdge;
         if (anEdge._Lnext._Lnext == anEdge)
         {
             Geom.AddWinding(anEdge._Onext, anEdge);
             _mesh.Delete(anEdge);
         }
     }
 }
Beispiel #2
0
        private void AddRightEdges(ActiveRegion regUp, MeshUtils.Edge eFirst, MeshUtils.Edge eLast, MeshUtils.Edge eTopLeft, bool cleanUp)
        {
            bool flag = true;

            MeshUtils.Edge edge = eFirst;
            do
            {
                AddRegionBelow(regUp, edge._Sym);
                edge = edge._Onext;
            }while (edge != eLast);
            if (eTopLeft == null)
            {
                eTopLeft = RegionBelow(regUp)._eUp._Rprev;
            }
            ActiveRegion activeRegion = regUp;

            MeshUtils.Edge edge2 = eTopLeft;
            while (true)
            {
                ActiveRegion activeRegion2 = RegionBelow(activeRegion);
                edge = activeRegion2._eUp._Sym;
                if (edge._Org != edge2._Org)
                {
                    break;
                }
                if (edge._Onext != edge2)
                {
                    _mesh.Splice(edge._Oprev, edge);
                    _mesh.Splice(edge2._Oprev, edge);
                }
                activeRegion2._windingNumber = activeRegion._windingNumber - edge._winding;
                activeRegion2._inside        = Geom.IsWindingInside(_windingRule, activeRegion2._windingNumber);
                activeRegion._dirty          = true;
                if (!flag && CheckForRightSplice(activeRegion))
                {
                    Geom.AddWinding(edge, edge2);
                    DeleteRegion(activeRegion);
                    _mesh.Delete(edge2);
                }
                flag         = false;
                activeRegion = activeRegion2;
                edge2        = edge;
            }
            activeRegion._dirty = true;
            if (cleanUp)
            {
                WalkDirtyRegions(activeRegion);
            }
        }
Beispiel #3
0
        private void WalkDirtyRegions(ActiveRegion regUp)
        {
            ActiveRegion activeRegion = RegionBelow(regUp);

            while (true)
            {
                if (activeRegion._dirty)
                {
                    regUp        = activeRegion;
                    activeRegion = RegionBelow(activeRegion);
                }
                else
                {
                    if (!regUp._dirty)
                    {
                        activeRegion = regUp;
                        regUp        = RegionAbove(regUp);
                        if (regUp == null || !regUp._dirty)
                        {
                            break;
                        }
                    }
                    regUp._dirty = false;
                    MeshUtils.Edge eUp  = regUp._eUp;
                    MeshUtils.Edge eUp2 = activeRegion._eUp;
                    if (eUp._Dst != eUp2._Dst && CheckForLeftSplice(regUp))
                    {
                        if (activeRegion._fixUpperEdge)
                        {
                            DeleteRegion(activeRegion);
                            _mesh.Delete(eUp2);
                            activeRegion = RegionBelow(regUp);
                            eUp2         = activeRegion._eUp;
                        }
                        else if (regUp._fixUpperEdge)
                        {
                            DeleteRegion(regUp);
                            _mesh.Delete(eUp);
                            regUp = RegionAbove(activeRegion);
                            eUp   = regUp._eUp;
                        }
                    }
                    if (eUp._Org != eUp2._Org)
                    {
                        if (eUp._Dst != eUp2._Dst && !regUp._fixUpperEdge && !activeRegion._fixUpperEdge && (eUp._Dst == _event || eUp2._Dst == _event))
                        {
                            if (CheckForIntersect(regUp))
                            {
                                break;
                            }
                        }
                        else
                        {
                            CheckForRightSplice(regUp);
                        }
                    }
                    if (eUp._Org == eUp2._Org && eUp._Dst == eUp2._Dst)
                    {
                        Geom.AddWinding(eUp2, eUp);
                        DeleteRegion(regUp);
                        _mesh.Delete(eUp);
                        regUp = RegionAbove(activeRegion);
                    }
                }
            }
        }