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202 | #ifndef MB_SETITERATOR_HPP
#define MB_SETITERATOR_HPP
#include "moab/Interface.hpp"
namespace moab
{
class Core;
/** \class Meshset iterator
* \brief A class to iterator over MOAB Meshsets
*/
class SetIterator
{
public:
friend class Core;
//! destructor
virtual ~SetIterator();
//! get the ent set for this iterator
inline EntityHandle ent_set() const
{
return entSet;
};
//! get the chunk size of this iterator
inline unsigned int chunk_size() const
{
return chunkSize;
};
//! get the entity type for this iterator
inline EntityType ent_type() const
{
return entType;
};
//! get the dimension for this iterator
inline int ent_dimension() const
{
return entDimension;
};
/** \brief get the next chunkSize entities
* Return the next chunkSize entities.
* \param arr Array of entities returned.
* \param atend Returns true if iterator is at the end of iterable values, otherwise false
*/
virtual ErrorCode get_next_arr( std::vector< EntityHandle >& arr, bool& atend ) = 0;<--- Virtual function in base class<--- Virtual function in base class<--- Virtual function in base class<--- Virtual function in base class
//! reset the iterator to the beginning of the set
virtual ErrorCode reset() = 0;<--- Virtual function in base class<--- Virtual function in base class<--- Virtual function in base class<--- Virtual function in base class
protected:
/** \brief Constructor
* \param core MOAB Core instance
* \param ent_set EntitySet to which this iterator corresponds
* \param chunk_size Chunk size of this iterator
* \param ent_type Entity type for this iterator
* \param ent_dim Entity dimension for this iterator
*/
inline SetIterator( Core* core,
EntityHandle eset,
unsigned int chunk_sz,
EntityType ent_tp,
int ent_dim,
bool check_valid = false )
: myCore( core ), entSet( eset ), chunkSize( chunk_sz ), entType( ent_tp ), entDimension( ent_dim ),
checkValid( check_valid ){};
//! Core instance
Core* myCore;
//! handle for entity set corresponding to this iterator
EntityHandle entSet;
//! chunk size of this iterator
unsigned int chunkSize;
//! entity type this iterator iterates over
EntityType entType;
//! dimension this iterator iterates over
int entDimension;
//! check for entity validity before returning handles
bool checkValid;
};
/** \class Set-type set iterator
* \brief A class to iterator over MOAB set-type meshsets
*/
class RangeSetIterator : public SetIterator
{
public:
friend class Core;
/** \brief Destructor
*/
virtual ~RangeSetIterator();
/** \brief get the next chunkSize entities
* Return the next chunkSize entities.
* \param arr Array of entities returned.
* \param atend Returns true if iterator is at the end of iterable values, otherwise false
*/
virtual ErrorCode get_next_arr( std::vector< EntityHandle >& arr, bool& atend );<--- Function in derived class<--- Function in derived class
//! reset the iterator to the beginning of the set
virtual ErrorCode reset();<--- Function in derived class<--- Function in derived class
protected:
/** \brief Constructor
* \param core MOAB Core instance
* \param ent_set EntitySet to which this iterator corresponds
* \param chunk_size Chunk size of this iterator
* \param ent_type Entity type for this iterator
* \param ent_dim Entity dimension for this iterator
*/
RangeSetIterator( Core* core,
EntityHandle ent_set,
int chunk_size,
EntityType ent_type,
int ent_dimension,
bool check_valid = false );
private:
ErrorCode get_next_by_type( const EntityHandle*& ptr, int count, std::vector< EntityHandle >& arr, bool& atend );
ErrorCode get_next_by_dimension( const EntityHandle*& ptr,
int count,
std::vector< EntityHandle >& arr,
bool& atend );
//! Build the special pair vector for the root set
ErrorCode build_pair_vec();
//! Current iterator position, 0 if at beginning
EntityHandle iterPos;
//! Special range pair ptr for root set
EntityHandle* pairPtr;
//! Number of range pairs
int numPairs;
};
/** \class List-type set iterator
* \brief A class to iterator over MOAB list-type meshsets
*/
class VectorSetIterator : public SetIterator
{
public:
friend class Core;
/** \brief get the next chunkSize entities
* Return the next chunkSize entities.
* \param arr Array of entities returned.
* \param atend Returns true if iterator is at the end of iterable values, otherwise false
*/
virtual ErrorCode get_next_arr( std::vector< EntityHandle >& arr, bool& atend );<--- Function in derived class<--- Function in derived class
//! reset the iterator to the beginning of the set
virtual ErrorCode reset();<--- Function in derived class<--- Function in derived class
//! decrement the position by the specified number; returns MB_FAILURE if resulting index is < 0
inline ErrorCode decrement( int num );
protected:
/** \brief Constructor
* \param core MOAB Core instance
* \param ent_set EntitySet to which this iterator corresponds
* \param chunk_size Chunk size of this iterator
* \param ent_type Entity type for this iterator
* \param ent_dim Entity dimension for this iterator
*/
inline VectorSetIterator( Core* core,
EntityHandle eset,
int chunk_sz,
EntityType ent_tp,
int ent_dim,
bool check_valid = false )
: SetIterator( core, eset, chunk_sz, ent_tp, ent_dim, check_valid ), iterPos( 0 )
{
}
private:
//! Current iterator position, 0 if at beginning
int iterPos;
};
inline ErrorCode VectorSetIterator::decrement( int num )
{
iterPos -= num;
return ( iterPos < 0 ? MB_FAILURE : MB_SUCCESS );
}
} // namespace moab
#endif
|