Files
LBPM/IO/MeshDatabase.h
2021-01-04 23:35:10 -05:00

91 lines
3.1 KiB
C++

#ifndef MeshDatabase_INC
#define MeshDatabase_INC
#include "IO/Mesh.h"
#include "common/MPI.h"
#include <iostream>
#include <memory>
#include <string.h>
#include <vector>
#include <map>
namespace IO {
class Mesh;
//! Enum to identify mesh type
//enum class MeshType : char { PointMesh=1, SurfaceMesh=2, VolumeMesh=3, Unknown=-1 };
enum MeshType { PointMesh=1, SurfaceMesh=2, VolumeMesh=3, Unknown=-1 };
//! Helper struct for containing offsets for the mesh info
struct DatabaseEntry {
std::string name; //!< Name of the entry
std::string file; //!< Name of the file containing the entry
size_t offset; //!< Offset in the file to start reading
std::string write( ) const; //!< Convert the data to a string
void read( const char* line ); //!< Convert the string to data
void read( const std::string& line ); //!< Convert the string to data
DatabaseEntry( ) {} //!< Empty constructor
DatabaseEntry( const char* line ); //!< Convert the string to data
~DatabaseEntry() {} //!< Destructor
};
//! Structure to hold the info about the variables
struct VariableDatabase {
std::string name; //!< Name of the variable
IO::VariableType type; //!< Variable
unsigned int dim; //!< Number of points per grid point (1: scalar, 3: vector, ...)
// Overload key operators
bool operator==(const VariableDatabase& rhs ) const;
bool operator!=(const VariableDatabase& rhs ) const;
bool operator>=(const VariableDatabase& rhs ) const;
bool operator<=(const VariableDatabase& rhs ) const;
bool operator> (const VariableDatabase& rhs ) const;
bool operator< (const VariableDatabase& rhs ) const;
};
//! Structure to hold the info about the meshes
struct MeshDatabase {
typedef std::pair<std::string,std::string> variable_id;
std::string name; //!< Name of the mesh
MeshType type; //!< Mesh type
std::string meshClass; //!< Mesh class
unsigned char format; //!< Data format (1: old, 2: new, 3: new (single), 4: silo)
std::vector<DatabaseEntry> domains; //!< List of the domains
std::vector<VariableDatabase> variables; //!< List of the variables
std::map<variable_id,DatabaseEntry> variable_data; //!< Data for the variables
VariableDatabase getVariableDatabase( const std::string& varname ) const;
public:
MeshDatabase();
~MeshDatabase();
MeshDatabase(const MeshDatabase&);
MeshDatabase& operator=(const MeshDatabase&);
};
//! Gather the mesh databases from all processors
std::vector<MeshDatabase> gatherAll( const std::vector<MeshDatabase>& meshes, const Utilities::MPI& comm );
//! Write the mesh databases to a file
void write( const std::vector<MeshDatabase>& meshes, const std::string& filename );
//! Read the mesh databases from a file
std::vector<MeshDatabase> read( const std::string& filename );
//! Return the mesh type
IO::MeshType meshType( const IO::Mesh& mesh );
} // IO namespace
#endif