This class implements and iterator to "navigate" over a raster, with a predefined number of bands. More...

#include <RasterIterator.h>

Public Member Functions
unsigned int	getColumn () const
	Returns the current column in iterator.

unsigned int	getRow () const
	Returns the current row in iterator.

void	getValues (std::vector< T > &v) const
	Gets the values from all bands in current position (column, row) from iterator.

bool	operator!= (const RasterIterator &rhs) const
	Difference operator.

std::vector< T >	operator* () const
	Returns a vector with pixel values from all bands in current position (column, row) from iterator.

void	operator++ ()
	Advances to the next position.

void	operator-- ()
	Returns to the previous position.

RasterIterator &	operator= (const RasterIterator &rhs)
	Assignment operator.

T	operator[] (const unsigned int i) const
	Returns the value in current position (column, row, band) from iterator.

	RasterIterator ()
	Empty constructor.

	RasterIterator (const RasterIterator &rhs)
	Copy constructor.

	RasterIterator (Raster *r, const std::vector< unsigned int > &bands, bool ignoreNoDataValue=false)
	Constructor.

	~RasterIterator ()
	Destructor.

Static Public Member Functions
static RasterIterator	begin (Raster *r, const std::vector< unsigned int > &bands, bool ignoreNoDataValue=false)
	Returns an iterator referring to the first value.

static RasterIterator	end (Raster *r, const std::vector< unsigned int > &bands)
	Returns an iterator referring to after the end of the iterator.

Protected Member Functions
bool	isNoDataValue ()
	Check if current position from iterartor represents a pixel with no data value.

Private Attributes
std::vector< unsigned int >	m_b
	The vector of bands to iterate.

bool	m_ignoreNoDataValue
	Flag used to not iterate over pixels with no data value.

std::vector< BandIterator< T > >	m_it
	The vector of band iterators.

Raster *	m_raster
	The raster from where to get the values.

Detailed Description

template<class T>
class te::rst::RasterIterator< T >

This class implements and iterator to "navigate" over a raster, with a predefined number of bands.

See also: te::rst::Raster

Definition at line 52 of file RasterIterator.h.

Constructor & Destructor Documentation

◆ RasterIterator() [1/3]

template<class T >

te::rst::RasterIterator< T >::RasterIterator

Empty constructor.

Definition at line 161 of file RasterIterator.h.

◆ RasterIterator() [2/3]

template<class T >

te::rst::RasterIterator< T >::RasterIterator	(	Raster *	r,
		const std::vector< unsigned int > &	bands,
		bool	ignoreNoDataValue = `false`
	)

Constructor.

Parameters

r	The raster to iterate.
bands	The vector of band indices that the iterator will use.

Definition at line 168 of file RasterIterator.h.

References te::rst::Raster::getBand(), te::rst::RasterIterator< T >::isNoDataValue(), te::rst::RasterIterator< T >::m_b, te::rst::RasterIterator< T >::m_ignoreNoDataValue, te::rst::RasterIterator< T >::m_it, and te::rst::RasterIterator< T >::operator++().

◆ RasterIterator() [3/3]

template<class T >

te::rst::RasterIterator< T >::RasterIterator ( const RasterIterator< T > & rhs )

Copy constructor.

Parameters

rhs	The right-hand-side copy used to copy from.

Definition at line 185 of file RasterIterator.h.

◆ ~RasterIterator()

template<class T >

te::rst::RasterIterator< T >::~RasterIterator

Destructor.

Definition at line 190 of file RasterIterator.h.

Member Function Documentation

◆ begin()

template<class T >

te::rst::RasterIterator< T > te::rst::RasterIterator< T >::begin	(	Raster *	r,
		const std::vector< unsigned int > &	bands,
		bool	ignoreNoDataValue = `false`
	)

static

Returns an iterator referring to the first value.

Parameters

r	The raster to iterate.
bands	The vector of band indices that the iterator will use.

Definition at line 297 of file RasterIterator.h.

◆ end()

template<class T >

te::rst::RasterIterator< T > te::rst::RasterIterator< T >::end	(	Raster *	r,
		const std::vector< unsigned int > &	bands
	)

static

Returns an iterator referring to after the end of the iterator.

Parameters

r	The raster to iterate.
bands	The vector of band indices that the iterator will use.

Definition at line 302 of file RasterIterator.h.

References te::rst::Raster::getBand(), and te::rst::RasterIterator< T >::m_it.

◆ getColumn()

template<class T >

unsigned int te::rst::RasterIterator< T >::getColumn

Returns the current column in iterator.

Definition at line 199 of file RasterIterator.h.

◆ getRow()

template<class T >

unsigned int te::rst::RasterIterator< T >::getRow

Returns the current row in iterator.

Definition at line 194 of file RasterIterator.h.

◆ getValues()

template<class T >

void te::rst::RasterIterator< T >::getValues ( std::vector< T > & v ) const

Gets the values from all bands in current position (column, row) from iterator.

Parameters

v	A vector previously created to be filled with values.

Warning: The caller is responsible for creating the vector with enough space.

Definition at line 218 of file RasterIterator.h.

◆ isNoDataValue()

template<class T >

bool te::rst::RasterIterator< T >::isNoDataValue

protected

Check if current position from iterartor represents a pixel with no data value.

Returns: Returns true if the all values from vector matchs is no data value

Definition at line 312 of file RasterIterator.h.

Referenced by te::rst::RasterIterator< T >::RasterIterator().

◆ operator!=()

template<class T >

bool te::rst::RasterIterator< T >::operator!= ( const RasterIterator< T > & rhs ) const

Difference operator.

Parameters

rhs	The right-hand side to compare.

Returns: Returns true if the iterators are at different positions, or false otherwise.

Definition at line 292 of file RasterIterator.h.

References te::rst::RasterIterator< T >::m_it.

◆ operator*()

template<class T >

std::vector< T > te::rst::RasterIterator< T >::operator*

Returns a vector with pixel values from all bands in current position (column, row) from iterator.

Definition at line 209 of file RasterIterator.h.

◆ operator++()

template<class T >

void te::rst::RasterIterator< T >::operator++

Advances to the next position.

Definition at line 224 of file RasterIterator.h.

Referenced by te::rst::RasterIterator< T >::RasterIterator().

◆ operator--()

template<class T >

void te::rst::RasterIterator< T >::operator--

Returns to the previous position.

Definition at line 250 of file RasterIterator.h.

◆ operator=()

template<class T >

te::rst::RasterIterator< T > & te::rst::RasterIterator< T >::operator= ( const RasterIterator< T > & rhs )

Assignment operator.

Parameters

rhs	The right-hand-side copy used to copy from.

Returns: A reference to this object.

Definition at line 276 of file RasterIterator.h.

References te::rst::RasterIterator< T >::m_b, te::rst::RasterIterator< T >::m_ignoreNoDataValue, te::rst::RasterIterator< T >::m_it, and te::rst::RasterIterator< T >::m_raster.

◆ operator[]()

template<class T >

T te::rst::RasterIterator< T >::operator[] ( const unsigned int i ) const

Returns the value in current position (column, row, band) from iterator.

Parameters

i	The band index.

Returns: The pixel value in current position.

Definition at line 204 of file RasterIterator.h.

Member Data Documentation

◆ m_b

template<class T >

std::vector<unsigned int> te::rst::RasterIterator< T >::m_b

private

The vector of bands to iterate.

Definition at line 155 of file RasterIterator.h.

Referenced by te::rst::RasterIterator< T >::operator=(), and te::rst::RasterIterator< T >::RasterIterator().

◆ m_ignoreNoDataValue

template<class T >

bool te::rst::RasterIterator< T >::m_ignoreNoDataValue

private

Flag used to not iterate over pixels with no data value.

Definition at line 158 of file RasterIterator.h.

Referenced by te::rst::RasterIterator< T >::operator=(), and te::rst::RasterIterator< T >::RasterIterator().

◆ m_it

template<class T >

std::vector<BandIterator<T> > te::rst::RasterIterator< T >::m_it

private

The vector of band iterators.

Definition at line 157 of file RasterIterator.h.

Referenced by te::rst::RasterIterator< T >::end(), te::rst::RasterIterator< T >::operator!=(), te::rst::RasterIterator< T >::operator=(), and te::rst::RasterIterator< T >::RasterIterator().

◆ m_raster

template<class T >

Raster* te::rst::RasterIterator< T >::m_raster

private

The raster from where to get the values.

Definition at line 156 of file RasterIterator.h.

Referenced by te::rst::RasterIterator< T >::operator=().

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

/home/castejon/castejon_files/develop/terralib5/git_release/src/terralib/raster/RasterIterator.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ RasterIterator() [1/3]

◆ RasterIterator() [2/3]

◆ RasterIterator() [3/3]

◆ ~RasterIterator()

Member Function Documentation

◆ begin()

◆ end()

◆ getColumn()

◆ getRow()

◆ getValues()

◆ isNoDataValue()

◆ operator!=()

◆ operator*()

◆ operator++()

◆ operator--()

◆ operator=()

◆ operator[]()

Member Data Documentation

◆ m_b

◆ m_ignoreNoDataValue

◆ m_it

◆ m_raster