geos::algorithm::distance::DiscreteFrechetDistance::HashMapMatrix Class Reference

#include <DiscreteFrechetDistance.h>

Inheritance diagram for geos::algorithm::distance::DiscreteFrechetDistance::HashMapMatrix:

Public Member Functions
	HashMapMatrix (std::size_t numRows, std::size_t numCols, double defaultValue)
double	get (std::size_t i, std::size_t j) const override
void	set (std::size_t i, std::size_t j, double value) override
bool	isValueSet (std::size_t i, std::size_t j) const override
Public Member Functions inherited from geos::algorithm::distance::DiscreteFrechetDistance::MatrixStorage
	MatrixStorage (std::size_t numRows, std::size_t numCols, double defaultValue)

Additional Inherited Members
Public Attributes inherited from geos::algorithm::distance::DiscreteFrechetDistance::MatrixStorage
std::size_t	m_numRows
std::size_t	m_numCols
double	m_defaultValue

Detailed Description

A sparse matrix based on java's HashMap.

Constructor & Destructor Documentation

HashMapMatrix()

geos::algorithm::distance::DiscreteFrechetDistance::HashMapMatrix::HashMapMatrix ( std::size_t  numRows, std::size_t  numCols, double  defaultValue  )

inline

Creates an instance of this class

Parameters

numRows	the number of rows
numCols	the number of columns
defaultValue	a default value

Member Function Documentation

get()

double geos::algorithm::distance::DiscreteFrechetDistance::HashMapMatrix::get ( std::size_t  i, std::size_t  j  ) const

inlineoverridevirtual

Gets the matrix value at i, j

Parameters

i	the row index
j	the column index

Returns

The matrix value at i, j

Implements geos::algorithm::distance::DiscreteFrechetDistance::MatrixStorage.

isValueSet()

bool geos::algorithm::distance::DiscreteFrechetDistance::HashMapMatrix::isValueSet ( std::size_t  i, std::size_t  j  ) const

inlineoverridevirtual

Gets a flag indicating if the matrix has a set value, e.g. one that is different than MatrixStorage defaultValue.

Parameters

i	the row index
j	the column index

Returns

a flag indicating if the matrix has a set value

Implements geos::algorithm::distance::DiscreteFrechetDistance::MatrixStorage.

set()

void geos::algorithm::distance::DiscreteFrechetDistance::HashMapMatrix::set ( std::size_t  i, std::size_t  j, double  value  )

inlineoverridevirtual

Sets the matrix value at i, j

Parameters

i	the row index
j	the column index
value	The matrix value to set at i, j

Implements geos::algorithm::distance::DiscreteFrechetDistance::MatrixStorage.

---

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

• DiscreteFrechetDistance.h