ShiftIterator Class Reference

#include <ProblemDomain.H>

List of all members.


Detailed Description

Class to manage box-shifting used to enforce periodic BC's.

The ShiftIterator class contains a list of shift vectors necessary to enforce periodic boundary conditions (enforced by shifting the Box of each Fab, then copying any overlapping valid cells with ghost cells of the shifted Fab. Depending on the number of periodic directions, the list of shift vectors over which to iterate differs.

Public Member Functions

 ShiftIterator ()
 Basic constructor.
 ShiftIterator (const bool *a_isPeriodic)
 Defining Constructor.
 ShiftIterator (const ShiftIterator &a_shiftIt)
 Copy constructor.
 ~ShiftIterator ()
 Destructor.
ShiftIteratoroperator= (const ShiftIterator &a_src)
 Assignment operator.
void computeShifts (const bool *a_isPeriodic)
 Recompute shift vectors based on periodic directions.
IntVect operator() () const
 Returns the current shift unit vector.
IntVect i () const
 Equivalent to the () operator.
void operator++ ()
 Increment to the next shift unit vector.
void incr ()
 Equivalent to the ++ operator.
bool ok () const
 Is the iterator still within its range of shift vectors?
int index () const
 which periodic image is this
const IntVectoperator[] (int index) const
void reset ()
 Reset to first shift unit vector.
void begin ()
 Equivalent to reset().
void end ()
 Skip the iterator to the end.

Private Attributes

int m_index
Vector< IntVectm_shift_vectors


Constructor & Destructor Documentation

ShiftIterator::ShiftIterator (  )  [inline]

Basic constructor.

ShiftIterator::ShiftIterator ( const bool *  a_isPeriodic  ) 

Defining Constructor.

Builds a ShiftIterator based on the periodicity in a_isPeriodic

ShiftIterator::ShiftIterator ( const ShiftIterator a_shiftIt  )  [inline]

Copy constructor.

References m_index, and m_shift_vectors.

ShiftIterator::~ShiftIterator (  ) 

Destructor.


Member Function Documentation

ShiftIterator & ShiftIterator::operator= ( const ShiftIterator a_src  )  [inline]

Assignment operator.

References m_index, and m_shift_vectors.

void ShiftIterator::computeShifts ( const bool *  a_isPeriodic  ) 

Recompute shift vectors based on periodic directions.

IntVect ShiftIterator::operator() (  )  const [inline]

Returns the current shift unit vector.

References CH_assert, m_index, m_shift_vectors, and ok().

Referenced by i().

IntVect ShiftIterator::i (  )  const [inline]

Equivalent to the () operator.

References operator()().

void ShiftIterator::operator++ (  )  [inline]

Increment to the next shift unit vector.

References m_index.

void ShiftIterator::incr (  )  [inline]

Equivalent to the ++ operator.

bool ShiftIterator::ok (  )  const [inline]

Is the iterator still within its range of shift vectors?

References m_index, m_shift_vectors, and Vector< T >::size().

Referenced by operator()().

int ShiftIterator::index (  )  const [inline]

which periodic image is this

References m_index.

const IntVect& ShiftIterator::operator[] ( int  index  )  const [inline]

References m_shift_vectors.

void ShiftIterator::reset (  )  [inline]

Reset to first shift unit vector.

References m_index.

void ShiftIterator::begin (  )  [inline]

Equivalent to reset().

References m_index.

void ShiftIterator::end (  )  [inline]

Skip the iterator to the end.

ok() will return false after this method is called.

References m_index, m_shift_vectors, and Vector< T >::size().


Member Data Documentation

int ShiftIterator::m_index [private]


The documentation for this class was generated from the following file:

Generated on Fri Aug 18 04:04:08 2017 for Chombo + EB by  doxygen 1.5.5