/usr/include/freefoam/meshTools/meshTools.H is in libfreefoam-dev 0.1.0+dfsg-1build1.
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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/>.
Namespace
Foam::meshTools
Description
Collection of static functions to do various simple mesh related things.
SourceFiles
meshTools.C
\*---------------------------------------------------------------------------*/
#ifndef meshTools_H
#define meshTools_H
#include <OpenFOAM/label.H>
#include <OpenFOAM/vector.H>
#include <OpenFOAM/labelList.H>
#include <OpenFOAM/pointField.H>
#include <OpenFOAM/faceList.H>
#include <OpenFOAM/cellList.H>
#include <OpenFOAM/primitivePatch.H>
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
class primitiveMesh;
class polyMesh;
/*---------------------------------------------------------------------------*\
Namespace meshTools Declaration
\*---------------------------------------------------------------------------*/
namespace meshTools
{
// Bit identifiers for octants (p=plus, m=min e.g. plusXminYminZ)
static const label mXmYmZ = 0;
static const label pXmYmZ = 1;
static const label mXpYmZ = 2;
static const label pXpYmZ = 3;
static const label mXmYpZ = 4;
static const label pXmYpZ = 5;
static const label mXpYpZ = 6;
static const label pXpYpZ = 7;
static const label mXmYmZMask = 1 << mXmYmZ;
static const label pXmYmZMask = 1 << pXmYmZ;
static const label mXpYmZMask = 1 << mXpYmZ;
static const label pXpYmZMask = 1 << pXpYmZ;
static const label mXmYpZMask = 1 << mXmYpZ;
static const label pXmYpZMask = 1 << pXmYpZ;
static const label mXpYpZMask = 1 << mXpYpZ;
static const label pXpYpZMask = 1 << pXpYpZ;
// Normal handling
//- Check if n is in same direction as normals of all faceLabels
bool visNormal
(
const vector& n,
const vectorField& faceNormals,
const labelList& faceLabels
);
//- Calculate point normals on a 'box' mesh (all edges aligned with
// coordinate axes)
vectorField calcBoxPointNormals(const primitivePatch& pp);
//- Normalized edge vector
vector normEdgeVec(const primitiveMesh&, const label edgeI);
// OBJ writing
//- Write obj representation of point
void writeOBJ
(
Ostream& os,
const point& pt
);
//- Write obj representation of faces subset
void writeOBJ
(
Ostream& os,
const faceList&,
const pointField&,
const labelList& faceLabels
);
//- Write obj representation of faces
void writeOBJ
(
Ostream& os,
const faceList&,
const pointField&
);
//- Write obj representation of cell subset
void writeOBJ
(
Ostream& os,
const cellList&,
const faceList&,
const pointField&,
const labelList& cellLabels
);
// Cell/face/edge walking
//- Is edge used by cell
bool edgeOnCell
(
const primitiveMesh&,
const label cellI,
const label edgeI
);
//- Is edge used by face
bool edgeOnFace
(
const primitiveMesh&,
const label faceI,
const label edgeI
);
//- Is face used by cell
bool faceOnCell
(
const primitiveMesh&,
const label cellI,
const label faceI
);
//- Return edge among candidates that uses the two vertices.
label findEdge
(
const edgeList& edges,
const labelList& candidates,
const label v0,
const label v1
);
//- Return edge between two vertices. Returns -1 if no edge.
label findEdge
(
const primitiveMesh&,
const label v0,
const label v1
);
//- Return edge shared by two faces. Throws error if no edge found.
label getSharedEdge
(
const primitiveMesh&,
const label f0,
const label f1
);
//- Return face shared by two cells. Throws error if none found.
label getSharedFace
(
const primitiveMesh&,
const label cell0,
const label cell1
);
//- Get faces on cell using edgeI. Throws error if no two found.
void getEdgeFaces
(
const primitiveMesh&,
const label cellI,
const label edgeI,
label& face0,
label& face1
);
//- Return label of other edge (out of candidates edgeLabels)
// connected to vertex but not edgeI. Throws error if none found.
label otherEdge
(
const primitiveMesh&,
const labelList& edgeLabels,
const label edgeI,
const label vertI
);
//- Return face on cell using edgeI but not faceI. Throws error
// if none found.
label otherFace
(
const primitiveMesh&,
const label cellI,
const label faceI,
const label edgeI
);
//- Return cell on other side of face. Throws error
// if face not internal.
label otherCell
(
const primitiveMesh&,
const label cellI,
const label faceI
);
//- Returns label of edge nEdges away from startEdge (in the direction
// of startVertI)
label walkFace
(
const primitiveMesh&,
const label faceI,
const label startEdgeI,
const label startVertI,
const label nEdges
);
// Constraints on position
//- Set the constrained components of position to mesh centre
void constrainToMeshCentre
(
const polyMesh& mesh,
point& pt
);
void constrainToMeshCentre
(
const polyMesh& mesh,
pointField& pt
);
//- Set the constrained components of directions/velocity to zero
void constrainDirection
(
const polyMesh& mesh,
const Vector<label>& dirs,
vector& d
);
void constrainDirection
(
const polyMesh& mesh,
const Vector<label>& dirs,
vectorField& d
);
// Hex only functionality.
//- Given edge on hex find other 'parallel', non-connected edges.
void getParallelEdges
(
const primitiveMesh&,
const label cellI,
const label e0,
label&,
label&,
label&
);
//- Given edge on hex find all 'parallel' (i.e. non-connected)
// edges and average direction of them
vector edgeToCutDir
(
const primitiveMesh&,
const label cellI,
const label edgeI
);
//- Reverse of edgeToCutDir: given direction find edge bundle and
// return one of them.
label cutDirToEdge
(
const primitiveMesh&,
const label cellI,
const vector& cutDir
);
} // End namespace meshTools
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************ vim: set sw=4 sts=4 et: ************************ //
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