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mesh.hh
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mesh.hh
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/**
* @file mesh.hh
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @date Wed Jun 16 11:53:53 2010
*
* @brief the class representing the meshes
*
* @section LICENSE
*
* <insert license here>
*
* @todo struct element + function linerized index <-> element
*/
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_MESH_HH__
#define __AKANTU_MESH_HH__
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "aka_memory.hh"
#include "aka_vector.hh"
#include "element_class.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
class Element {
public:
Element(ElementType type = _not_defined, UInt element = 0) :
type(type), element(element) {};
/// function to print the containt of the class
virtual void printself(std::ostream & stream, int indent = 0) const;
public:
ElementType type;
UInt element;
};
/* -------------------------------------------------------------------------- */
class Mesh : protected Memory {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
/// constructor that create nodes coordinates array
Mesh(UInt spatial_dimension,
const MeshID & id = "mesh",
const MemoryID & memory_id = 0);
/// constructor that use an existing nodes coordinates array, by knowing its ID
Mesh(UInt spatial_dimension,
const VectorID & nodes_id,
const MeshID & id = "mesh",
const MemoryID & memory_id = 0);
/**
* constructor that use an existing nodes coordinates
* array, by getting the vector of coordinates
*/
Mesh(UInt spatial_dimension,
Vector<Real> & nodes,
const MeshID & id = "mesh",
const MemoryID & memory_id = 0);
virtual ~Mesh();
typedef std::set<ElementType> ConnectivityTypeList;
typedef Vector<UInt> * ConnectivityMap[_max_element_type];
private:
/// initialize the connectivity to NULL
void initConnectivities();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// function to print the containt of the class
virtual void printself(std::ostream & stream, int indent = 0) const;
Vector<UInt> & createConnectivity(ElementType type, UInt nb_element);
#ifdef AKANTU_USE_MPI
Vector<UInt> & createGhostConnectivity(ElementType type, UInt nb_element);
#endif //AKANTU_USE_MPI
/// convert a element to a linearized element
inline UInt elementToLinearized(const Element & elem);
/// convert a linearized element to an element
inline Element linearizedToElement (UInt linearized_element);
/// update the types offsets array for the conversions
inline void updateTypesOffsets();
#ifdef AKANTU_USE_MPI
/// convert a element to a linearized element
inline UInt ghostElementToLinearized(const Element & elem);
/// convert a linearized element to an element
inline Element ghostLinearizedToElement (UInt linearized_element);
/// update the types offsets array for the conversions
inline void updateGhostTypesOffsets();
#endif //AKANTU_USE_MPI
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
AKANTU_GET_MACRO(ID, id, const MeshID &);
AKANTU_GET_MACRO(SpatialDimension, spatial_dimension, UInt);
AKANTU_GET_MACRO_BY_ELEMENT_TYPE(Connectivity, connectivities, Vector<UInt> &);
inline const Mesh & getInternalFacetsMesh() const;
#ifdef AKANTU_USE_MPI
AKANTU_GET_MACRO_BY_ELEMENT_TYPE(Connectivity, ghost_connectivities, Vector<UInt> &);
#endif //AKANTU_USE_MPI
/// get the number of element of a type in the mesh
inline UInt getNbElement(const ElementType & type) const;
inline const ConnectivityTypeList & getConnectivityTypeList(bool local = true) const;
AKANTU_GET_MACRO(Nodes, *nodes, Vector<Real> &);
AKANTU_GET_MACRO(NbNodes, nodes->getSize(), UInt);
/// get the number of nodes per element for a given element type
static inline UInt getNbNodesPerElement(const ElementType & type);
/// get the number of nodes per element for a given element type considered as
/// a first order element
static inline UInt getNbNodesPerElementP1(const ElementType & type);
/// get spatial dimension of a type of element
static inline UInt getSpatialDimension(const ElementType & type);
/// get number of facets of a given element type
inline UInt getNbFacetsPerElementType(const ElementType & type) const;
/// get number of facets of a given element type
inline UInt ** getFacetLocalConnectivityPerElementType(const ElementType & type) const;
/// get the type of the surface element associated to a given element
static inline const ElementType getFacetElementType(const ElementType & type);
private:
friend class MeshIOMSH;
friend class MeshUtils;
inline Vector<UInt> * getConnectivityPointer(ElementType type) const;
inline Mesh * getInternalFacetsMeshPointer();
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// id of the mesh
MeshID id;
/// array of the nodes coordinates
Vector<Real> * nodes;
/// boolean to know if the nodes have to be deleted with the mesh or not
bool created_nodes;
/// all class of elements present in this mesh (for heterogenous meshes)
ConnectivityMap connectivities;
/// list of all existing types in the mesh
ConnectivityTypeList type_set;
/// the spatial dimension of this mesh
UInt spatial_dimension;
/// internal facets mesh
Mesh * internal_facets_mesh;
/// types offsets
Vector<UInt> types_offsets;
#ifdef AKANTU_USE_MPI
/// all class of elements present in this mesh (for heterogenous meshes)
ConnectivityMap ghost_connectivities;
/// list of all existing types in the mesh
ConnectivityTypeList ghost_type_set;
/// ghost types offsets
Vector<UInt> ghost_types_offsets;
#endif //AKANTU_USE_MPI
};
/* -------------------------------------------------------------------------- */
/* Inline functions */
/* -------------------------------------------------------------------------- */
/// standard output stream operator
inline std::ostream & operator <<(std::ostream & stream, const Element & _this)
{
_this.printself(stream);
return stream;
}
#include "mesh_inline_impl.cc"
/// standard output stream operator
inline std::ostream & operator <<(std::ostream & stream, const Mesh & _this)
{
_this.printself(stream);
return stream;
}
__END_AKANTU__
#endif /* __AKANTU_MESH_HH__ */

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