BlockSparsityPattern Class Reference
[Sparsity patterns]

Inheritance diagram for BlockSparsityPattern:

Inheritance graph
[legend]

List of all members.

Public Member Functions

 BlockSparsityPattern ()
 BlockSparsityPattern (const unsigned int n_rows, const unsigned int n_columns)
void reinit (const unsigned int n_block_rows, const unsigned int n_block_columns)
void reinit (const BlockIndices &row_indices, const BlockIndices &col_indices, const std::vector< std::vector< unsigned int > > &row_lengths)
bool is_compressed () const
unsigned int memory_consumption () const
void copy_from (const BlockCompressedSparsityPattern &csp)
void copy_from (const BlockCompressedSetSparsityPattern &csp)
void copy_from (const BlockCompressedSimpleSparsityPattern &csp)


Detailed Description

This class extends the base class to implement an array of sparsity patterns that can be used by block sparse matrix objects. It only adds a few additional member functions, but the main interface stems from the base class, see there for more information.

This class is an example of the "static" type of Sparsity patterns.

Author:
Wolfgang Bangerth, 2000, 2001

Constructor & Destructor Documentation

BlockSparsityPattern::BlockSparsityPattern (  ) 

Initialize the matrix empty, that is with no memory allocated. This is useful if you want such objects as member variables in other classes. You can make the structure usable by calling the reinit() function.

BlockSparsityPattern::BlockSparsityPattern ( const unsigned int  n_rows,
const unsigned int  n_columns 
)

Initialize the matrix with the given number of block rows and columns. The blocks themselves are still empty, and you have to call collect_sizes() after you assign them sizes.


Member Function Documentation

void BlockSparsityPattern::reinit ( const unsigned int  n_block_rows,
const unsigned int  n_block_columns 
) [inline]

void BlockSparsityPattern::reinit ( const BlockIndices row_indices,
const BlockIndices col_indices,
const std::vector< std::vector< unsigned int > > &  row_lengths 
)

Initialize the pattern with two BlockIndices for the block structures of matrix rows and columns as well as a row length vector in the format produced by DoFTools.

bool BlockSparsityPattern::is_compressed (  )  const

Return whether the structure is compressed or not, i.e. whether all sub-matrices are compressed.

unsigned int BlockSparsityPattern::memory_consumption (  )  const

Determine an estimate for the memory consumption (in bytes) of this object.

void BlockSparsityPattern::copy_from ( const BlockCompressedSparsityPattern csp  ) 

Copy data from an object of type BlockCompressedSparsityPattern, i.e. resize this object to the size of the given argument, and copy over the contents of each of the subobjects. Previous content of this object is lost.

void BlockSparsityPattern::copy_from ( const BlockCompressedSetSparsityPattern csp  ) 

Copy data from an object of type BlockCompressedSetSparsityPattern, i.e. resize this object to the size of the given argument, and copy over the contents of each of the subobjects. Previous content of this object is lost.

void BlockSparsityPattern::copy_from ( const BlockCompressedSimpleSparsityPattern csp  ) 

Copy data from an object of type BlockCompressedSimpleSparsityPattern, i.e. resize this object to the size of the given argument, and copy over the contents of each of the subobjects. Previous content of this object is lost.


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

deal.II documentation generated on Sat Aug 15 16:51:41 2009 by doxygen 1.5.9