meshSearch.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
    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/>.
 
Class
    Foam::meshSearch
 
Description
    Mesh object that implements searches within the local cells and faces
 
SourceFiles
    meshSearch.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef meshSearch_H
#define meshSearch_H
 
#include "DemandDrivenMeshObject.H"
#include "indexedOctree.H"
#include "pointInCell.H"
#include "treeDataCell.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                         Class meshSearch Declaration
\*---------------------------------------------------------------------------*/
 
class meshSearch
:
    public DemandDrivenMeshObject
    <
        polyMesh,
        DeletableMeshObject,
        meshSearch
    >
{
    // Private Data
 
        //- Cell tree
        const indexedOctree<treeDataCell> cellTree_;
 
 
protected:
 
    friend class DemandDrivenMeshObject
    <
        polyMesh,
        DeletableMeshObject,
        meshSearch
    >;
 
 
    // Protected Constructors
 
        //- Construct from mesh
        explicit meshSearch(const polyMesh& mesh);
 
 
public:
 
    //- Run-time type information
    TypeName("meshSearch");
 
 
    // Constructors
 
        //- Lookup or construct from mesh and cell decomposition option
        static const meshSearch& New
        (
            const polyMesh& mesh,
            const pointInCellShapes = pointInCellShapes::tets
        );
 
        //- Disallow default bitwise copy construction
        meshSearch(const meshSearch&) = delete;
 
 
    //- Destructor
    virtual ~meshSearch();
 
 
    // Member Functions
 
        // Access
 
            //- Access the cell tree
            inline const indexedOctree<treeDataCell>& cellTree() const
            {
                return cellTree_;
            }
 
 
        // Queries
 
            //- Find the cell with centre closest to the given point
            label findNearestCell(const point& p) const;
 
            //- Find the cell with centre closest to the given point. Do a
            //  linear search through all the cells instead of using the tree.
            static label findNearestCellNoTree
            (
                const polyMesh& mesh,
                const point& p
            );
 
            //- Find the face with centre closest to the given point
            label findNearestFace(const point& p) const;
 
            //- Find the cell containing the given point
            label findCell
            (
                const point& p,
                const pointInCellShapes = pointInCellShapes::tets
            ) const;
 
            //- Find the cell containing the given point. Do a
            //  linear search through all the cells instead of using the tree.
            static label findCellNoTree
            (
                const polyMesh& mesh,
                const point& p,
                const pointInCellShapes = pointInCellShapes::tets
            );
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const meshSearch&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //