mergePatchPairs.H

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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
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    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/>.
 
Class
    Foam::mergePatchPairs
 
Description
    Class to stitch mesh by merging patch-pairs
 
SourceFiles
    mergePatchPairs.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef mergePatchPairs_H
#define mergePatchPairs_H
 
#include "polyMesh.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class fvMesh;
class polyTopoChange;
class polyPatchIntersection;
 
/*---------------------------------------------------------------------------*\
                     Class mergePatchPairs Declaration
\*---------------------------------------------------------------------------*/
 
class mergePatchPairs
{
    // Private data
 
        polyMesh& mesh_;
 
        const scalar snapTol_;
 
        mutable labelList newPoints_;
 
 
    // Private member functions
 
        //- Return patch index of given patch name
        //  Throw a fatal error if the patch name is not found
        label findPatchIndex(const word& patchName) const;
 
        //- Return the patch index pairs
        //  corresponding to the give patch name pairs
        Pair<label> findPatchIndices
        (
            const Pair<word>& patchNamePair
        ) const;
 
        //- Set the patchPairs_ patch index pair list
        //  from the patchNamePairs_ patch name pair list
        List<Pair<label>> patchPairs
        (
            const List<Pair<word>>& patchNamePairs
        ) const;
 
        //- Remove all the points corresponding to the patch pairs to be merged
        void removePoints
        (
            polyTopoChange& meshMod,
            const List<Pair<label>>& patchPairs
        ) const;
 
        //- Add the points generated by the patch intersection
        void addPoints
        (
            polyTopoChange& meshMod,
            const polyPatchIntersection& intersection
        ) const;
 
        //- Remove all the faces of the source and target patches to me merged
        void removeFaces
        (
            polyTopoChange& meshMod,
            const polyPatchIntersection& intersection
        ) const;
 
        //- Map face from patch-local point indices to global mesh point indices
        face mapFace(const face& f) const;
 
        //- Add a new internal and patch face to the mesh
        void addFaces
        (
            polyTopoChange& meshMod,
            const polyPatchIntersection& intersection
        ) const;
 
        void addEdgeAddedPoints
        (
            HashTable<labelList, edge, Hash<edge>>& edgeAddedPoints,
            const primitivePatch& patch,
            const List<DynamicList<label>>& patchEdgeAddedPoints
        ) const;
 
        //- Update the point indices of the changed points in the pointMap
        void updatePoints
        (
            labelList& pointMap,
            const primitivePatch& patch,
            const labelList& pointPoints
        ) const;
 
        //- Modify the edges of existing edge-connected faces
        //  by changing the end-point and adding any additional points
        //  and point-connected faces by updating the point indices
        void modifyFaces
        (
            polyTopoChange& meshMod,
            const polyPatchIntersection& intersection
        ) const;
 
        //- Intersect the given pair of patches and insert all face changes
        //  into meshMod
        void intersectPatchPair
        (
            polyTopoChange& meshMod,
            const polyPatch& srcPatch,
            const polyPatch& tgtPatch
        ) const;
 
        //- Merge all the given patch pairs
        //  returning the polyTopoChangeMap for subsequent field mapping
        autoPtr<polyTopoChangeMap> merge
        (
            const List<Pair<label>>& patchPairIndices
        ) const;
 
        //- Return true if the points of patchi are connected to any
        //  of the patches already tested
        bool connected
        (
            boolList& patchPoints,
            const label patchi
        ) const;
 
        //- Merge all the given patch pairs
        //  and update all the fields cached in the given mesh
        template<class Mesh>
        inline void merge
        (
            Mesh& mesh,
            const List<Pair<word>>& patchPairNames
        ) const;
 
 
public:
 
    // Static Data Members
 
        ClassName("mergePatchPairs");
 
 
    // Constructors
 
        mergePatchPairs
        (
            polyMesh& mesh,
            const List<Pair<word>>& patchPairNames,
            const scalar snapTol
        );
 
        mergePatchPairs
        (
            fvMesh& mesh,
            const List<Pair<word>>& patchPairNames,
            const scalar snapTol
        );
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //