bool Foam::meshTriangulation::isInternalFace
(
const primitiveMesh& mesh,
const boolList& includedCell,
const label faceI
)
{
if (mesh.isInternalFace(faceI))
{
label own = mesh.faceOwner()[faceI];
label nei = mesh.faceNeighbour()[faceI];
if (includedCell[own] && includedCell[nei])
{
// Neighbouring cell will get included in subset
// as well so face is internal.
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
// Step from faceI (on side cellI) to connected face & cell without crossing
// fenceEdges.
void Foam::regionSide::visitConnectedFaces
(
const primitiveMesh& mesh,
const labelHashSet& region,
const labelHashSet& fenceEdges,
const label cellI,
const label faceI,
labelHashSet& visitedFace
)
{
if (!visitedFace.found(faceI))
{
if (debug)
{
Info<< "visitConnectedFaces : cellI:" << cellI << " faceI:"
<< faceI << " isOwner:" << (cellI == mesh.faceOwner()[faceI])
<< endl;
}
// Mark as visited
visitedFace.insert(faceI);
// Mark which side of face was visited.
if (cellI == mesh.faceOwner()[faceI])
{
sideOwner_.insert(faceI);
}
// Visit all neighbouring faces on faceSet. Stay on this 'side' of
// face by doing edge-face-cell walk.
const labelList& fEdges = mesh.faceEdges()[faceI];
forAll(fEdges, fEdgeI)
{
label edgeI = fEdges[fEdgeI];
if (!fenceEdges.found(edgeI))
{
// Step along faces on edge from cell to cell until
// we hit face on faceSet.
// Find face reachable from edge
label otherFaceI = otherFace(mesh, cellI, faceI, edgeI);
if (mesh.isInternalFace(otherFaceI))
{
label otherCellI = cellI;
// Keep on crossing faces/cells until back on face on
// surface
while (!region.found(otherFaceI))
{
visitedFace.insert(otherFaceI);
if (debug)
{
Info<< "visitConnectedFaces : cellI:" << cellI
<< " found insideEdgeFace:" << otherFaceI
<< endl;
}
// Cross otherFaceI into neighbouring cell
otherCellI =
meshTools::otherCell
(
mesh,
otherCellI,
otherFaceI
);
otherFaceI =
otherFace
(
mesh,
otherCellI,
otherFaceI,
edgeI
);
}
visitConnectedFaces
(
mesh,
region,
fenceEdges,
otherCellI,
otherFaceI,
visitedFace
);
}
}
}
}