triSurface triangulate
(
const polyBoundaryMesh& bMesh,
const labelHashSet& includePatches,
const labelListIOList& finalAgglom,
labelList& triSurfaceToAgglom,
const globalIndex& globalNumbering,
const polyBoundaryMesh& coarsePatches
)
{
const polyMesh& mesh = bMesh.mesh();
// Storage for surfaceMesh. Size estimate.
DynamicList<labelledTri> triangles
(
mesh.nFaces() - mesh.nInternalFaces()
);
label newPatchI = 0;
label localTriFaceI = 0;
forAllConstIter(labelHashSet, includePatches, iter)
{
const label patchI = iter.key();
const polyPatch& patch = bMesh[patchI];
const pointField& points = patch.points();
label nTriTotal = 0;
forAll(patch, patchFaceI)
{
const face& f = patch[patchFaceI];
faceList triFaces(f.nTriangles(points));
label nTri = 0;
f.triangles(points, nTri, triFaces);
forAll(triFaces, triFaceI)
{
const face& f = triFaces[triFaceI];
triangles.append(labelledTri(f[0], f[1], f[2], newPatchI));
nTriTotal++;
triSurfaceToAgglom[localTriFaceI++] = globalNumbering.toGlobal
(
Pstream::myProcNo(),
finalAgglom[patchI][patchFaceI]
+ coarsePatches[patchI].start()
);
}
}
newPatchI++;
}
triSurfaceToAgglom.resize(localTriFaceI-1);
triangles.shrink();
// Create globally numbered tri surface
triSurface rawSurface(triangles, mesh.points());
// Create locally numbered tri surface
triSurface surface
(
rawSurface.localFaces(),
rawSurface.localPoints()
);
// Add patch names to surface
surface.patches().setSize(newPatchI);
newPatchI = 0;
forAllConstIter(labelHashSet, includePatches, iter)
{
const label patchI = iter.key();
const polyPatch& patch = bMesh[patchI];
surface.patches()[newPatchI].index() = patchI;
surface.patches()[newPatchI].name() = patch.name();
surface.patches()[newPatchI].geometricType() = patch.type();
newPatchI++;
}
return surface;
}
