LagrangianSubMesh.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::LagrangianSubMesh
 
Description
    Mesh that relates to a sub-section of a Lagrangian mesh. This is used to
    construct fields that relate to a contiguous sub-set of the Lagrangian
    elements. This class only stores references and the indices defining the
    range of the sub-set, so it is very lightweight and can be constructed and
    thrown away largely without consideration of expense.
 
SourceFiles
    LagrangianSubMesh.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef LagrangianSubMesh_H
#define LagrangianSubMesh_H
 
#include "GeoMesh.H"
#include "LagrangianState.H"
#include "LagrangianFieldsFwd.H"
#include "LagrangianSubFieldsFwd.H"
#include "polyMesh.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class LagrangianMesh;
 
/*---------------------------------------------------------------------------*\
                         Class LagrangianSubMesh Declaration
\*---------------------------------------------------------------------------*/
 
class LagrangianSubMesh
:
    public GeoMesh<polyMesh>
{
    // Private Data
 
        //- Reference to the Lagrangian mesh
        const LagrangianMesh& mesh_;
 
        //- Group of the elements in this subset
        const LagrangianGroup group_;
 
        //- Size of the subset
        label size_;
 
        //- Start index of the subset
        label start_;
 
        //- Index with which to compare instances
        const label index_;
 
 
    // Private Constructors
 
        //- Construct from components
        explicit LagrangianSubMesh
        (
            const LagrangianMesh& mesh,
            const LagrangianGroup group,
            const label size,
            const label start,
            const label index
        );
 
 
public:
 
    // Friend classes
 
        //- Allow the Lagrangian mesh to construct with a specified index
        friend class LagrangianMesh;
 
 
    //- Runtime type information
    ClassName("LagrangianSubMesh");
 
 
    // Public Type Definitions
 
        //- Mesh type
        typedef LagrangianSubMesh Mesh;
 
 
    // Constructors
 
        //- Construct from components, except for the index which is
        //  automatically generated from the complete mesh
        explicit LagrangianSubMesh
        (
            const LagrangianMesh& mesh,
            const LagrangianGroup group,
            const label size,
            const label start
        );
 
        //- Construct from Lagrangian mesh, group offsets and group
        explicit LagrangianSubMesh
        (
            const LagrangianMesh& mesh,
            const labelList& groupOffsets,
            const LagrangianGroup group
        );
 
 
    //- Destructor
    ~LagrangianSubMesh();
 
 
    // Member functions
 
        // Access
 
            //- Return the mesh
            inline const LagrangianMesh& mesh() const;
 
            //- Return the group
            inline LagrangianGroup group() const;
 
            //- Return size
            inline label size() const;
 
            //- Return size
            inline label globalSize() const;
 
            //- Return size
            static inline label size(const LagrangianSubMesh& subMesh);
 
            //- Return whether or not the mesh is empty
            inline bool empty() const;
 
            //- Return start
            inline label start() const;
 
            //- Return end
            inline label end() const;
 
            //- Return the index
            inline label index() const;
 
 
        // Sub-setting
 
            //- Return a sub-list corresponding to this sub-mesh
            template<class Type>
            SubList<Type> sub(const List<Type>& list) const;
 
            //- Return a sub-field corresponding to this sub-mesh
            template<class Type>
            SubField<Type> sub(const Field<Type>& field) const;
 
            //- Return a sub-dimensioned-field corresponding to this sub-mesh
            template<class Type, template<class> class PrimitiveField>
            tmp<LagrangianSubSubField<Type>> sub
            (
                const DimensionedField<Type, LagrangianMesh, PrimitiveField>&
            ) const;
 
 
        // Geometry
 
            //- Return the face normals at the Lagrangian locations
            template<class FieldType>
            static tmp<FieldType> nf
            (
                const LagrangianSubScalarSubField& fraction
            );
 
            //- Return the face normals at the Lagrangian locations
            template<class FieldType>
            tmp<FieldType> nf
            (
                const LagrangianScalarInternalDynamicField& fraction
            ) const;
 
            //- Return the face velocities at the Lagrangian locations
            template<class FieldType>
            static tmp<FieldType> Uf
            (
                const LagrangianSubScalarSubField& fraction
            );
 
            //- Return the face velocities at the Lagrangian locations
            template<class FieldType>
            tmp<FieldType> Uf
            (
                const LagrangianScalarInternalDynamicField& fraction
            ) const;
 
 
    // Member Operators
 
        //- Add a sub-mesh to this one. Must relate to adjacent elements.
        void operator+=(const LagrangianSubMesh&);
};
 
 
// Template Specialisations
 
template<>
tmp<vectorField> LagrangianSubMesh::nf
(
    const LagrangianSubScalarSubField& fraction
);
 
template<>
tmp<LagrangianSubVectorField> LagrangianSubMesh::nf
(
    const LagrangianSubScalarSubField& fraction
);
 
template<>
tmp<vectorField> LagrangianSubMesh::nf
(
    const LagrangianScalarInternalDynamicField& fraction
) const;
 
template<>
tmp<LagrangianSubVectorField> LagrangianSubMesh::nf
(
    const LagrangianScalarInternalDynamicField& fraction
) const;
 
template<>
tmp<vectorField> LagrangianSubMesh::Uf
(
    const LagrangianSubScalarSubField& fraction
);
 
template<>
tmp<LagrangianSubVectorField> LagrangianSubMesh::Uf
(
    const LagrangianSubScalarSubField& fraction
);
 
template<>
tmp<vectorField> LagrangianSubMesh::Uf
(
    const LagrangianScalarInternalDynamicField& fraction
) const;
 
template<>
tmp<LagrangianSubVectorField> LagrangianSubMesh::Uf
(
    const LagrangianScalarInternalDynamicField& fraction
) const;
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "LagrangianSubMeshI.H"
 
#ifdef NoRepository
    #include "LagrangianSubMeshTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //