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BUG: distributedTriSurfaceMesh: handle zero sized local surfaces

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This commit is contained in:
mattijs
2013-05-16 11:17:54 +01:00
parent 0bf5772998
commit fe32d73d5a
5 changed files with 99 additions and 61 deletions
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34
src/meshTools/searchableSurface/triSurfaceMesh.C
View File

@ -433,24 +433,28 @@ Foam::triSurfaceMesh::edgeTree() const
+ nInternalEdges()
);
treeBoundBox bb;
label nPoints;
PatchTools::calcBounds
(
static_cast<const triSurface&>(*this),
bb,
nPoints
);
treeBoundBox bb(vector::zero, vector::zero);
// Random number generator. Bit dodgy since not exactly random ;-)
Random rndGen(65431);
if (bEdges.size())
{
label nPoints;
PatchTools::calcBounds
(
static_cast<const triSurface&>(*this),
bb,
nPoints
);
// Slightly extended bb. Slightly off-centred just so on symmetric
// geometry there are less face/edge aligned items.
// Random number generator. Bit dodgy since not exactly random ;-)
Random rndGen(65431);
bb = bb.extend(rndGen, 1e-4);
bb.min() -= point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
bb.max() += point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
// Slightly extended bb. Slightly off-centred just so on symmetric
// geometry there are less face/edge aligned items.
bb = bb.extend(rndGen, 1e-4);
bb.min() -= point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
bb.max() += point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
}
scalar oldTol = indexedOctree<treeDataEdge>::perturbTol();
indexedOctree<treeDataEdge>::perturbTol() = tolerance();

55
src/meshTools/triSurface/triSurfaceSearch/triSurfaceRegionSearch.C
View File

@ -121,33 +121,40 @@ Foam::triSurfaceRegionSearch::treeByRegion() const
);
// Calculate bb without constructing local point numbering.
treeBoundBox bb;
label nPoints;
PatchTools::calcBounds
(
indirectRegionPatches_[regionI],
bb,
nPoints
);
treeBoundBox bb(vector::zero, vector::zero);
// if (nPoints != surface().points().size())
// {
// WarningIn("triSurfaceRegionSearch::treeByRegion() const")
// << "Surface does not have compact point numbering. "
// << "Of " << surface().points().size()
// << " only " << nPoints
// << " are used. This might give problems in some routines."
// << endl;
// }
if (indirectRegionPatches_[regionI].size())
{
label nPoints;
PatchTools::calcBounds
(
indirectRegionPatches_[regionI],
bb,
nPoints
);
// Random number generator. Bit dodgy since not exactly random ;-)
Random rndGen(65431);
// if (nPoints != surface().points().size())
// {
// WarningIn("triSurfaceRegionSearch::treeByRegion() const")
// << "Surface does not have compact point numbering. "
// << "Of " << surface().points().size()
// << " only " << nPoints
// << " are used."
// << " This might give problems in some routines."
// << endl;
// }
// Slightly extended bb. Slightly off-centred just so on symmetric
// geometry there are fewer face/edge aligned items.
bb = bb.extend(rndGen, 1e-4);
bb.min() -= point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
bb.max() += point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
// Random number generator. Bit dodgy since not exactly
// random ;-)
Random rndGen(65431);
// Slightly extended bb. Slightly off-centred just so
// on symmetric geometry there are fewer face/edge
// aligned items.
bb = bb.extend(rndGen, 1e-4);
bb.min() -= point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
bb.max() += point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
}
treeByRegion_.set
(

41
src/meshTools/triSurface/triSurfaceSearch/triSurfaceSearch.C
View File

@ -200,28 +200,33 @@ Foam::triSurfaceSearch::tree() const
if (treePtr_.empty())
{
// Calculate bb without constructing local point numbering.
treeBoundBox bb;
label nPoints;
PatchTools::calcBounds(surface(), bb, nPoints);
treeBoundBox bb(vector::zero, vector::zero);
if (nPoints != surface().points().size())
if (surface().size())
{
WarningIn("triSurfaceSearch::tree() const")
<< "Surface does not have compact point numbering."
<< " Of " << surface().points().size() << " only " << nPoints
<< " are used. This might give problems in some routines."
<< endl;
label nPoints;
PatchTools::calcBounds(surface(), bb, nPoints);
if (nPoints != surface().points().size())
{
WarningIn("triSurfaceSearch::tree() const")
<< "Surface does not have compact point numbering."
<< " Of " << surface().points().size()
<< " only " << nPoints
<< " are used. This might give problems in some routines."
<< endl;
}
// Random number generator. Bit dodgy since not exactly random ;-)
Random rndGen(65431);
// Slightly extended bb. Slightly off-centred just so on symmetric
// geometry there are less face/edge aligned items.
bb = bb.extend(rndGen, 1e-4);
bb.min() -= point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
bb.max() += point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
}
// Random number generator. Bit dodgy since not exactly random ;-)
Random rndGen(65431);
// Slightly extended bb. Slightly off-centred just so on symmetric
// geometry there are less face/edge aligned items.
bb = bb.extend(rndGen, 1e-4);
bb.min() -= point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
bb.max() += point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
scalar oldTol = indexedOctree<treeDataTriSurface>::perturbTol();
indexedOctree<treeDataTriSurface>::perturbTol() = tolerance_;

24
src/parallel/distributed/distributedTriSurfaceMesh/distributedTriSurfaceMesh.C
View File

@ -2360,10 +2360,28 @@ bool Foam::distributedTriSurfaceMesh::writeObject
// Make sure dictionary goes to same directory as surface
const_cast<fileName&>(dict_.instance()) = searchableSurface::instance();
// Copy of triSurfaceMesh::writeObject except for the sorting of
// triangles by region. This is done so we preserve region names,
// even if locally we have zero triangles.
{
fileName fullPath(searchableSurface::objectPath());
if (!mkDir(fullPath.path()))
{
return false;
}
// Important: preserve any zero-sized patches
triSurface::write(fullPath, true);
if (!isFile(fullPath))
{
return false;
}
}
// Dictionary needs to be written in ascii - binary output not supported.
return
triSurfaceMesh::writeObject(fmt, ver, cmp)
&& dict_.writeObject(IOstream::ASCII, ver, cmp);
return dict_.writeObject(IOstream::ASCII, ver, cmp);
}

6
src/parallel/distributed/distributedTriSurfaceMesh/distributedTriSurfaceMesh.H
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -446,6 +446,10 @@ public:
// regIOobject implementation
//- Write using given format, version and compression
// Do not use the triSurfaceMesh::writeObject since it
// would filter out empty regions. These need to be preserved
// in case we want to make decisions based on the number of
// regions.
virtual bool writeObject
(
IOstream::streamFormat fmt,