174 lines
5.2 KiB
C++
174 lines
5.2 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.1
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::regionSide
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Description
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Determines the 'side' for every face and connected to a
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singly-connected (through edges) region of faces. Gets set of faces and
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a list of mesh edges ('fenceEdges') which should not be crossed.
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Used in splitting a mesh region.
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Determines:
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- For every face on the surface: whether the owner was visited
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from starting face.
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- List of faces using an internal point of the region visitable by
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edge-face-edge walking from the correct side of the region.
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SourceFiles
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regionSide.C
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\*---------------------------------------------------------------------------*/
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#ifndef regionSide_H
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#define regionSide_H
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#include "HashSet.H"
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#include "typeInfo.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// Forward declaration of classes
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class primitiveMesh;
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/*---------------------------------------------------------------------------*\
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Class regionSide Declaration
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\*---------------------------------------------------------------------------*/
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class regionSide
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{
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// Private data
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//- For every face on region tells whether the owner is on the
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// 'regionside'.
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labelHashSet sideOwner_;
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//- Contains the faces using an internal point and visited face
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labelHashSet insidePointFaces_;
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// Private Member Functions
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//- Step across point to other edge on face
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static label otherEdge
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(
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const primitiveMesh& mesh,
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const label faceI,
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const label edgeI,
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const label pointI
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);
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//- From faceI, side cellI, cross to other faces/cells by
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// face-cell walking and store visited faces and update sideOwner_.
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void visitConnectedFaces
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(
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const primitiveMesh& mesh,
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const labelHashSet& region,
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const labelHashSet& fenceEdges,
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const label cellI,
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const label faceI,
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labelHashSet& visitedFace
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);
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//- From edge on face connected to point on region (regionPointI) cross
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// to all other edges using this point by walking across faces
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// Does not cross regionEdges so stays on one side of region
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void walkPointConnectedFaces
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(
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const primitiveMesh& mesh,
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const labelHashSet& regionEdges,
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const label regionPointI,
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const label startFaceI,
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const label startEdgeI,
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labelHashSet& visitedEdges
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);
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//- Visits all internal points on region and marks edges reachable
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// from sideOwner side (using walkPointConnectedFaces)
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void walkAllPointConnectedFaces
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(
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const primitiveMesh& mesh,
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const labelHashSet& regionFaces,
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const labelHashSet& fenceEdges
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);
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public:
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//- Runtime type information
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ClassName("regionSide");
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// Static Functions
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//- Step across edge onto other face on cell
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static label otherFace
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(
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const primitiveMesh& mesh,
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const label cellI,
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const label excludeFaceI,
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const label edgeI
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);
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// Constructors
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//- Construct from components
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regionSide
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(
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const primitiveMesh& mesh,
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const labelHashSet& region,
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const labelHashSet& fenceEdges, // labels of fence edges
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const label startCell,
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const label startFace
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);
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// Member Functions
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// Access
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const labelHashSet& sideOwner() const
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{
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return sideOwner_;
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}
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const labelHashSet& insidePointFaces() const
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{
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return insidePointFaces_;
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}
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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