/usr/include/freefoam/OpenFOAM/PatchToolsCheck.C is in libfreefoam-dev 0.1.0+dfsg-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM 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.
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "PatchTools.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
template
<
class Face,
template<class> class FaceList,
class PointField,
class PointType
>
bool
Foam::PatchTools::checkOrientation
(
const PrimitivePatch<Face, FaceList, PointField, PointType>& p,
const bool report,
labelHashSet* setPtr
)
{
bool foundError = false;
// Check edge normals, face normals, point normals.
forAll(p.faceEdges(), faceI)
{
const labelList& edgeLabels = p.faceEdges()[faceI];
bool valid = true;
if (edgeLabels.size() < 3)
{
if (report)
{
Info<< "Face[" << faceI << "] " << p[faceI]
<< " has fewer than 3 edges. Edges: " << edgeLabels
<< endl;
}
valid = false;
}
else
{
forAll(edgeLabels, i)
{
if (edgeLabels[i] < 0 || edgeLabels[i] >= p.nEdges())
{
if (report)
{
Info<< "edge number " << edgeLabels[i]
<< " on face " << faceI
<< " out-of-range\n"
<< "This usually means the input surface has "
<< "edges with more than 2 faces connected."
<< endl;
}
valid = false;
}
}
}
if (!valid)
{
foundError = true;
continue;
}
//
//- Compute normal from 3 points, use the first as the origin
// minor warpage should not be a problem
const Face& f = p[faceI];
const point& p0 = p.points()[f[0]];
const point& p1 = p.points()[f[1]];
const point& p2 = p.points()[f[f.size()-1]];
const vector pointNormal((p1 - p0) ^ (p2 - p0));
if ((pointNormal & p.faceNormals()[faceI]) < 0)
{
foundError = false;
if (report)
{
Info
<< "Normal calculated from points inconsistent"
<< " with faceNormal" << nl
<< "face: " << f << nl
<< "points: " << p0 << ' ' << p1 << ' ' << p2 << nl
<< "pointNormal:" << pointNormal << nl
<< "faceNormal:" << p.faceNormals()[faceI] << endl;
}
}
}
forAll(p.edges(), edgeI)
{
const edge& e = p.edges()[edgeI];
const labelList& neighbouringFaces = p.edgeFaces()[edgeI];
if (neighbouringFaces.size() == 2)
{
// we use localFaces() since edges() are LOCAL
// these are both already available
const Face& faceA = p.localFaces()[neighbouringFaces[0]];
const Face& faceB = p.localFaces()[neighbouringFaces[1]];
// If the faces are correctly oriented, the edges must go in
// different directions on connected faces.
if (faceA.edgeDirection(e) == faceB.edgeDirection(e))
{
if (report)
{
Info<< "face orientation incorrect." << nl
<< "localEdge[" << edgeI << "] " << e
<< " between faces:" << nl
<< " face[" << neighbouringFaces[0] << "] "
<< p[neighbouringFaces[0]]
<< " localFace: " << faceA
<< nl
<< " face[" << neighbouringFaces[1] << "] "
<< p[neighbouringFaces[1]]
<< " localFace: " << faceB
<< endl;
}
if (setPtr)
{
setPtr->insert(edgeI);
}
foundError = true;
}
}
else if (neighbouringFaces.size() != 1)
{
if (report)
{
Info
<< "Wrong number of edge neighbours." << nl
<< "edge[" << edgeI << "] " << e
<< " with points:" << p.localPoints()[e.start()]
<< ' ' << p.localPoints()[e.end()]
<< " has neighbouringFaces:" << neighbouringFaces << endl;
}
if (setPtr)
{
setPtr->insert(edgeI);
}
foundError = true;
}
}
return foundError;
}
// ************************ vim: set sw=4 sts=4 et: ************************ //
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