// Locate point on patch. Returns (mesh) point label.
label findPoint(const primitivePatch& pp, const point& nearPoint)
{
const pointField& points = pp.points();
const labelList& meshPoints = pp.meshPoints();
// Find nearest and next nearest
scalar minDistSqr = GREAT;
label minI = -1;
scalar almostMinDistSqr = GREAT;
label almostMinI = -1;
forAll(meshPoints, i)
{
label pointI = meshPoints[i];
scalar distSqr = magSqr(nearPoint - points[pointI]);
if (distSqr < minDistSqr)
{
almostMinDistSqr = minDistSqr;
almostMinI = minI;
minDistSqr = distSqr;
minI = pointI;
}
else if (distSqr < almostMinDistSqr)
{
almostMinDistSqr = distSqr;
almostMinI = pointI;
}
}
// Collect all topological information about a point on a patch.
// (this information is the patch faces using the point and the relative
// position of the point in the face)
void Foam::globalPoints::addToSend
(
const primitivePatch& pp,
const label patchPointI,
const procPointList& knownInfo,
DynamicList<label>& patchFaces,
DynamicList<label>& indexInFace,
DynamicList<procPointList>& allInfo
)
{
label meshPointI = pp.meshPoints()[patchPointI];
// Add all faces using the point so we are sure we find it on the
// other side.
const labelList& pFaces = pp.pointFaces()[patchPointI];
forAll(pFaces, i)
{
label patchFaceI = pFaces[i];
const face& f = pp[patchFaceI];
patchFaces.append(patchFaceI);
indexInFace.append(findIndex(f, meshPointI));
allInfo.append(knownInfo);
}
Foam::pointField Foam::perfectInterface::calcFaceCentres
(
const primitivePatch& pp
)
{
const pointField& points = pp.points();
pointField ctrs(pp.size());
forAll(ctrs, patchFaceI)
{
ctrs[patchFaceI] = pp[patchFaceI].centre(points);
}
bool Foam::ggiPolyPatch::order
(
const primitivePatch& pp,
labelList& faceMap,
labelList& rotation
) const
{
faceMap.setSize(pp.size(), -1);
rotation.setSize(pp.size(), 0);
// Nothing changes
return false;
}
bool Foam::regionCouplePolyPatch::order
(
const primitivePatch& pp,
labelList& faceMap,
labelList& rotation
) const
{
faceMap.setSize(pp.size());
faceMap = -1;
rotation.setSize(pp.size());
rotation = 0;
// Nothing changes
return false;
}
// Get point neighbours of faceI (including faceI). Returns number of faces.
// Note: does not allocate storage but does use linear search to determine
// uniqueness. For polygonal faces this might be quite inefficient.
Foam::label Foam::cellDistFuncs::getPointNeighbours
(
const primitivePatch& patch,
const label patchFaceI,
labelList& neighbours
) const
{
label nNeighbours = 0;
// Add myself
neighbours[nNeighbours++] = patchFaceI;
// Add all face neighbours
const labelList& faceNeighbours = patch.faceFaces()[patchFaceI];
forAll(faceNeighbours, faceNeighbourI)
{
neighbours[nNeighbours++] = faceNeighbours[faceNeighbourI];
}
// Remember part of neighbours that contains edge-connected faces.
label nEdgeNbs = nNeighbours;
// Add all point-only neighbours by linear searching in edge neighbours.
// Assumes that point-only neighbours are not using multiple points on
// face.
const face& f = patch.localFaces()[patchFaceI];
forAll(f, fp)
{
label pointI = f[fp];
const labelList& pointNbs = patch.pointFaces()[pointI];
forAll(pointNbs, nbI)
{
label faceI = pointNbs[nbI];
// Check for faceI in edge-neighbours part of neighbours
if (findIndex(nEdgeNbs, neighbours, faceI) == -1)
{
neighbours[nNeighbours++] = faceI;
}
}
// Dump patch + weights to vtk file
void writeWeights
(
const scalarField& wghtSum,
const primitivePatch& patch,
const fileName& directory,
const fileName& prefix,
const word& timeName
)
{
vtkSurfaceWriter writer;
writer.write
(
directory,
prefix + "_proc" + Foam::name(Pstream::myProcNo()) + "_" + timeName,
patch.localPoints(),
patch.localFaces(),
"weightsSum",
wghtSum,
false
);
}