387 lines
10 KiB
C
387 lines
10 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | foam-extend: Open Source CFD
|
|
\\ / O peration | Version: 3.2
|
|
\\ / A nd | Web: http://www.foam-extend.org
|
|
\\/ M anipulation | For copyright notice see file Copyright
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of foam-extend.
|
|
|
|
foam-extend is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the
|
|
Free Software Foundation, either version 3 of the License, or (at your
|
|
option) any later version.
|
|
|
|
foam-extend is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Description
|
|
A surface analysis tool which sub-sets the triSurface
|
|
to choose only a part of interest. Based on subsetMesh.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "triSurface.H"
|
|
#include "argList.H"
|
|
#include "OFstream.H"
|
|
#include "IFstream.H"
|
|
#include "Switch.H"
|
|
#include "IOdictionary.H"
|
|
#include "boundBox.H"
|
|
#include "indexedOctree.H"
|
|
#include "octree.H"
|
|
#include "treeDataTriSurface.H"
|
|
#include "Random.H"
|
|
|
|
using namespace Foam;
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
// Main program:
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
argList::noParallel();
|
|
argList::validArgs.clear();
|
|
argList::validArgs.append("surfaceSubsetDict");
|
|
argList::validArgs.append("surface file");
|
|
argList::validArgs.append("output file");
|
|
argList args(argc, argv);
|
|
|
|
Info<< "Reading dictionary " << args.additionalArgs()[0] << " ..." << endl;
|
|
IFstream dictFile(args.additionalArgs()[0]);
|
|
dictionary meshSubsetDict(dictFile);
|
|
|
|
Info<< "Reading surface " << args.additionalArgs()[1] << " ..." << endl;
|
|
triSurface surf1(args.additionalArgs()[1]);
|
|
|
|
Info<< "Original:" << endl;
|
|
surf1.writeStats(Info);
|
|
Info<< endl;
|
|
|
|
|
|
labelList markedPoints
|
|
(
|
|
meshSubsetDict.lookup("localPoints")
|
|
);
|
|
|
|
labelList markedEdges
|
|
(
|
|
meshSubsetDict.lookup("edges")
|
|
);
|
|
|
|
labelList markedFaces
|
|
(
|
|
meshSubsetDict.lookup("faces")
|
|
);
|
|
|
|
pointField markedZone
|
|
(
|
|
meshSubsetDict.lookup("zone")
|
|
);
|
|
|
|
if (markedZone.size() && markedZone.size() != 2)
|
|
{
|
|
FatalErrorIn(args.executable())
|
|
<< "zone specification should be two points, min and max of "
|
|
<< "the boundingbox" << endl
|
|
<< "zone:" << markedZone
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
Switch addFaceNeighbours
|
|
(
|
|
meshSubsetDict.lookup("addFaceNeighbours")
|
|
);
|
|
|
|
Switch invertSelection
|
|
(
|
|
meshSubsetDict.lookup("invertSelection")
|
|
);
|
|
|
|
// Mark the cells for the subset
|
|
|
|
// Faces to subset
|
|
boolList facesToSubset(surf1.size(), false);
|
|
|
|
|
|
//
|
|
// pick up faces connected to "localPoints"
|
|
//
|
|
|
|
if (markedPoints.size())
|
|
{
|
|
Info << "Found " << markedPoints.size() << " marked point(s)." << endl;
|
|
|
|
// pick up cells sharing the point
|
|
|
|
forAll (markedPoints, pointI)
|
|
{
|
|
if
|
|
(
|
|
markedPoints[pointI] < 0
|
|
|| markedPoints[pointI] >= surf1.nPoints()
|
|
)
|
|
{
|
|
FatalErrorIn(args.executable())
|
|
<< "localPoint label " << markedPoints[pointI]
|
|
<< "out of range."
|
|
<< " The mesh has got "
|
|
<< surf1.nPoints() << " localPoints."
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
const labelList& curFaces =
|
|
surf1.pointFaces()[markedPoints[pointI]];
|
|
|
|
forAll (curFaces, i)
|
|
{
|
|
facesToSubset[curFaces[i]] = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//
|
|
// pick up faces connected to "edges"
|
|
//
|
|
|
|
if (markedEdges.size())
|
|
{
|
|
Info << "Found " << markedEdges.size() << " marked edge(s)." << endl;
|
|
|
|
// pick up cells sharing the edge
|
|
|
|
forAll (markedEdges, edgeI)
|
|
{
|
|
if
|
|
(
|
|
markedEdges[edgeI] < 0
|
|
|| markedEdges[edgeI] >= surf1.nEdges()
|
|
)
|
|
{
|
|
FatalErrorIn(args.executable())
|
|
<< "edge label " << markedEdges[edgeI]
|
|
<< "out of range."
|
|
<< " The mesh has got "
|
|
<< surf1.nEdges() << " edges."
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
const labelList& curFaces = surf1.edgeFaces()[markedEdges[edgeI]];
|
|
|
|
forAll (curFaces, i)
|
|
{
|
|
facesToSubset[curFaces[i]] = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// pick up faces with centre inside "zone"
|
|
//
|
|
|
|
if (markedZone.size() == 2)
|
|
{
|
|
const point& min = markedZone[0];
|
|
const point& max = markedZone[1];
|
|
|
|
Info << "Using zone min:" << min << " max:" << max << endl;
|
|
|
|
forAll(surf1, faceI)
|
|
{
|
|
const labelledTri& f = surf1[faceI];
|
|
const point centre = f.centre(surf1.points());
|
|
|
|
if
|
|
(
|
|
(centre.x() >= min.x())
|
|
&& (centre.y() >= min.y())
|
|
&& (centre.z() >= min.z())
|
|
&& (centre.x() <= max.x())
|
|
&& (centre.y() <= max.y())
|
|
&& (centre.z() <= max.z())
|
|
)
|
|
{
|
|
facesToSubset[faceI] = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// pick up faces on certain side of surface
|
|
//
|
|
|
|
if (meshSubsetDict.found("surface"))
|
|
{
|
|
const dictionary& surfDict = meshSubsetDict.subDict("surface");
|
|
|
|
fileName surfName(surfDict.lookup("name"));
|
|
|
|
Switch outside(surfDict.lookup("outside"));
|
|
|
|
if (outside)
|
|
{
|
|
Info<< "Selecting all triangles with centre outside surface "
|
|
<< surfName << endl;
|
|
}
|
|
else
|
|
{
|
|
Info<< "Selecting all triangles with centre inside surface "
|
|
<< surfName << endl;
|
|
}
|
|
|
|
// Read surface to select on
|
|
triSurface selectSurf(surfName);
|
|
|
|
// bb of surface
|
|
treeBoundBox bb(selectSurf.localPoints());
|
|
|
|
// Radnom number generator
|
|
Random rndGen(354543);
|
|
|
|
// search engine
|
|
indexedOctree<treeDataTriSurface> selectTree
|
|
(
|
|
treeDataTriSurface(selectSurf),
|
|
bb.extend(rndGen, 1E-4), // slightly randomize bb
|
|
8, // maxLevel
|
|
10, // leafsize
|
|
3.0 // duplicity
|
|
);
|
|
|
|
// Check if face (centre) is in outside or inside.
|
|
forAll(facesToSubset, faceI)
|
|
{
|
|
if (!facesToSubset[faceI])
|
|
{
|
|
const point fc(surf1[faceI].centre(surf1.points()));
|
|
|
|
indexedOctree<treeDataTriSurface>::volumeType t =
|
|
selectTree.getVolumeType(fc);
|
|
|
|
if (t == indexedOctree<treeDataTriSurface>::INSIDE && !outside)
|
|
{
|
|
facesToSubset[faceI] = true;
|
|
}
|
|
else if
|
|
(
|
|
t == indexedOctree<treeDataTriSurface>::OUTSIDE
|
|
&& outside
|
|
)
|
|
{
|
|
facesToSubset[faceI] = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// pick up specified "faces"
|
|
//
|
|
|
|
// Number of additional faces picked up because of addFaceNeighbours
|
|
label nFaceNeighbours = 0;
|
|
|
|
if (markedFaces.size())
|
|
{
|
|
Info << "Found " << markedFaces.size() << " marked face(s)." << endl;
|
|
|
|
// Check and mark faces to pick up
|
|
forAll (markedFaces, faceI)
|
|
{
|
|
if
|
|
(
|
|
markedFaces[faceI] < 0
|
|
|| markedFaces[faceI] >= surf1.size()
|
|
)
|
|
{
|
|
FatalErrorIn(args.executable())
|
|
<< "Face label " << markedFaces[faceI] << "out of range."
|
|
<< " The mesh has got "
|
|
<< surf1.size() << " faces."
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
// Mark the face
|
|
facesToSubset[markedFaces[faceI]] = true;
|
|
|
|
// mark its neighbours if requested
|
|
if (addFaceNeighbours)
|
|
{
|
|
const labelList& curFaces =
|
|
surf1.faceFaces()[markedFaces[faceI]];
|
|
|
|
forAll (curFaces, i)
|
|
{
|
|
label faceI = curFaces[i];
|
|
|
|
if (!facesToSubset[faceI])
|
|
{
|
|
facesToSubset[faceI] = true;
|
|
nFaceNeighbours++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (addFaceNeighbours)
|
|
{
|
|
Info<< "Added " << nFaceNeighbours
|
|
<< " faces because of addFaceNeighbours" << endl;
|
|
}
|
|
|
|
|
|
if (invertSelection)
|
|
{
|
|
Info<< "Inverting selection." << endl;
|
|
boolList newFacesToSubset(facesToSubset.size());
|
|
|
|
forAll(facesToSubset, i)
|
|
{
|
|
if (facesToSubset[i])
|
|
{
|
|
newFacesToSubset[i] = false;
|
|
}
|
|
else
|
|
{
|
|
newFacesToSubset[i] = true;
|
|
}
|
|
}
|
|
facesToSubset.transfer(newFacesToSubset);
|
|
}
|
|
|
|
|
|
// Create subsetted surface
|
|
labelList pointMap;
|
|
labelList faceMap;
|
|
triSurface surf2
|
|
(
|
|
surf1.subsetMesh(facesToSubset, pointMap, faceMap)
|
|
);
|
|
|
|
Info<< "Subset:" << endl;
|
|
surf2.writeStats(Info);
|
|
Info << endl;
|
|
|
|
fileName outFileName(args.additionalArgs()[2]);
|
|
|
|
Info << "Writing surface to " << outFileName << endl;
|
|
|
|
surf2.write(outFileName);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|