Manages a Buffer over a cube. More...

#include <BufferManager.h>

Inheritance diagram for Isis::BufferManager:

Collaboration diagram for Isis::BufferManager:

Public Member Functions
	BufferManager (int maxsamps, int maxlines, int maxbands, int bufsamps, int buflines, int bufbands, Isis::PixelType type, bool reverse=false)
	Constructs a BufferManager object.
	BufferManager (const BufferManager &other)
	~BufferManager ()
	Destroys the BufferManager object.
bool	operator++ (int)
	Moves the shape buffer to the next position.
BufferManager &	operator+= (int i)
bool	begin ()
	Moves the shape buffer to the first position.
bool	next ()
	Moves the shape buffer to the next position.
bool	end () const
	Returns true if the shape buffer has accessed the end of the cube.
bool	setpos (BigInt map)
	Sets the position of the shape in the cube.
void	swap (BufferManager &other)
BufferManager &	operator= (const BufferManager &rhs)
int	SampleDimension () const
	Returns the number of samples in the shape buffer.
int	LineDimension () const
	Returns the number of lines in the shape buffer.
int	BandDimension () const
	Returns the number of bands in the shape buffer.
int	size () const
	Returns the total number of pixels in the shape buffer.
int	Sample (const int index=0) const
	Returns the sample position associated with a shape buffer index.
int	Line (const int index=0) const
	Returns the line position associated with a shape buffer index.
int	Band (const int index=0) const
	Returns the band position associated with a shape buffer index.
void	Position (const int index, int &i_samp, int &i_line, int &i_band) const
	Returns the sample, line, and band position associated with a shape buffer index.
int	Index (const int i_samp, const int i_line, const int i_band) const
	Given a sample, line, and band position, this returns the appropriate index in the shape buffer.
double	at (const int index) const
	Returns the value in the shape buffer at the given index.
double &	operator[] (const int index)
	Returns the value in the shape buffer at given index.
const double &	operator[] (const int index) const
	Returns the value in the shape buffer at given index.
double *	DoubleBuffer () const
	Returns the value of the shape buffer.
void	Copy (const Buffer &in, bool includeRawBuf=true)
	Allows copying of the buffer contents to another Buffer.
bool	CopyOverlapFrom (const Buffer &in)
	Allows copying of the buffer contents of a larger buffer to another same size or smaller Buffer, using their base positions to relate data.
void *	RawBuffer () const
	Returns a void pointer to the raw buffer.
Isis::PixelType	PixelType () const
	Returns the raw buffer pixel type.

Protected Member Functions
int	MaxSamples () const
	Returns the number of samples in the cube.
int	MaxLines () const
	Returns the number of lines in the cube.
int	MaxBands () const
	Returns the number of bands in the cube.
BigInt	MaxMaps () const
	Returns the maximum number of positions the shape buffer needs to cover the entire image (see setpos method for more info).
void	SetIncrements (const int sinc, const int linc, const int binc)
	Sets how the shape is incremented through the cube.
void	SetOffsets (const int soff, const int loff, const int boff)
	Sets the offset of the buffer.
void	SetBasePosition (const int start_sample, const int start_line, const int start_band)
	This method is used to set the base position of the shape buffer.
void	SetBaseSample (const int start_samp)
	This method is used to set the base sample position of the shape buffer.
void	SetBaseLine (const int start_line)
	This method is used to set the base line position of the shape buffer.
void	SetBaseBand (const int start_band)
	This method is used to set the base band position of the shape buffer.
void	Allocate ()
	Size or resize the memory buffer.

Protected Attributes
int	p_sample
	Starting sample to read/write.
int	p_nsamps
	Number of samples to read/write.
int	p_line
	Starting line to read/write.
int	p_nlines
	Number of lines to read/write.
int	p_band
	Starting band to read/write.
int	p_nbands
	Number of bands to read/write.
int	p_npixels
	Number of pixels (nsamps * nlines * nbands)
double *	p_buf
	Shape buffer allocated to the size of npixels for handling reads/writes.
const Isis::PixelType	p_pixelType
	The pixel type of the raw buffer.
void *	p_rawbuf
	The raw dm read from the disk.

Private Attributes
int	p_maxSamps
	Maximum samples to map.
int	p_maxLines
	Maximum lines to map.
int	p_maxBands
	Maximum bands to map.
int	p_sinc
	Sample increment.
int	p_linc
	Line increment.
int	p_binc
	Band increment.
int	p_soff
	Sample offset.
int	p_loff
	Line offset.
int	p_boff
	Band offset.
int	p_currentSample
	Current sample.
int	p_currentLine
	Current line.
int	p_currentBand
	Current band.
BigInt	p_nmaps
	Total number of objects to map.
BigInt	p_currentMap
	Current buffer map position.
bool	p_reverse
	If true the axies are processed in Band, Line, Sample order (e.g., BIL).

Detailed Description

Manages a Buffer over a cube.

This class is used to manage a Buffer over a cube. Recall a Buffer is simply a 3-d shape (or subset) of a cube. For example, a line, tile, or spectra are some possible shapes. A buffer manager will walk the shape over the entire cube to ensure every pixel is accessed. When constructing a BufferManager, arguments for the cube size and buffer size are required. For example, construction for a (100 sample, 200 line, 2 band) cube accessed by a line shape would require the shape buffer to have 100 samples, 1 line, and 1 band. The manager would then access the lines sequentially in the first band and then proceed to the second band. A 100 sample, 1 line, and 2 band shape buffer would access each line but both bands simultaneously. Typically, a BufferManager is not instantiated directly but is used in a derived class such a Line or Tile.

If you would like to see BufferManager being used in implementation, see the LineManager, BoxcarManager, or TileManager class.

Author: 2003-02-01 Jeff Anderson

History:: 2003-05-16 Stuart Sides - modified schema from astrogeology...isis.astrogeology

History:: 2003-06-02 Jeff Anderson - Modified setpos method to allow for speedy reverse direction management.

History:: 2005-05-23 Jeff Anderson - Modified to support 2GB+ files

History:: 2007-12-04 Christopher Austin - Added option to constructor to change the order of the progression through the cube

History:: 2008-06-18 Christopher Austin - Fixed documenation errors

History:: 2012-02-24 Steven Lambright - Optimized setpos() and made it public.

Definition at line 67 of file BufferManager.h.

Constructor & Destructor Documentation

Isis::BufferManager::BufferManager	(	int	maxsamps,
		int	maxlines,
		int	maxbands,
		int	bufsamps,
		int	buflines,
		int	bufbands,
		Isis::PixelType	type,
		bool	reverse = `false`
	)

Constructs a BufferManager object.

Parameters

maxsamps	Maximum samples to map
maxlines	Maximum lines to map
maxbands	Maximum bands to map
bufsamps	Number of samples in the shape buffer
buflines	Number of lines in the shape buffer
bufbands	Number of bands in the shape buffer
type	Type of pixel in raw buffer
reverse	Modifies the order of progression this buffer takes through the cube. By default, progresses samples first, then lines, then bands. If reverse = true, then the buffer progresses bands first, then lines, then samples.

Definition at line 61 of file BufferManager.cpp.

References p_reverse, and SetIncrements().

Isis::BufferManager::~BufferManager ( )

inline

Destroys the BufferManager object.

Definition at line 78 of file BufferManager.h.

Member Function Documentation

void Isis::Buffer::Allocate ( )

protectedinherited

Size or resize the memory buffer.

Exceptions

Isis::iException::System - Memory allocation failed

Definition at line 341 of file Buffer.cpp.

References _FILEINFO_, Isis::Message::MemoryAllocationFailed(), Isis::Buffer::p_buf, Isis::Buffer::p_npixels, Isis::Buffer::p_pixelType, Isis::Buffer::p_rawbuf, Isis::SizeOf(), and Isis::IException::Unknown.

Referenced by Isis::Buffer::Buffer(), and Isis::Brick::Resize().

double Isis::Buffer::at ( const int index ) const

inherited

Returns the value in the shape buffer at the given index.

Parameters

index Index position in buffer. Out of bounds index is trapped.

Returns: double Buffer value at index

Exceptions

Isis::iException::Programmer - Array Subscript not in range

Definition at line 238 of file Buffer.cpp.

References _FILEINFO_, Isis::Message::ArraySubscriptNotInRange(), Isis::Buffer::p_buf, Isis::Buffer::p_npixels, and Isis::IException::Programmer.

Referenced by Isis::CubeDataThreadTester::BrickChanged(), Isis::ViewportBuffer::DataReady(), Isis::ViewportBuffer::fillBuffer(), Isis::StatisticsTool::getStatistics(), Isis::CubeDataThreadTester::ReadBrick(), Isis::CubeDataThreadTester::ReadWriteBrick(), and Isis::EditTool::undoAll().

int Isis::Buffer::Band ( const int index = 0 ) const

inherited

Returns the band position associated with a shape buffer index.

The shape buffer is one dimensional. Let us assume a nsamps=2, nlines=3, and nbands=2. Therefore the total size of the shape buffer is 12 and valid index values are 0-11. Indexes 0-5 will return band 1 and 6-11 will return band 2.

Parameters

index Shape buffer index to map to a band position. Defaults to 0.

Returns: int The absolute band number based on the buffer index.

Definition at line 172 of file Buffer.cpp.

References Isis::Buffer::p_band, Isis::Buffer::p_nlines, and Isis::Buffer::p_nsamps.

Referenced by Isis::CubeIoHandler::bufferLessThan(), Isis::Buffer::CopyOverlapFrom(), Isis::CubeIoHandler::findIntersection(), Isis::ImageImporter::operator()(), Isis::SpectralDefinition2D::operator()(), Isis::Average::operator()(), Isis::ProcessByBrick::ProcessCubesFunctor< T >::operator()(), Isis::CubeDataThread::OverlapIndex(), Isis::Buffer::Position(), Isis::CubeIoHandler::read(), Isis::ProcessRubberSheet::StartProcess(), Isis::CubeIoHandler::synchronousWrite(), Isis::CubeIoHandler::writeIntoDouble(), and Isis::CubeIoHandler::writeIntoRaw().

int Isis::Buffer::BandDimension ( ) const

inlineinherited

Returns the number of bands in the shape buffer.

Returns: int

Definition at line 103 of file Buffer.h.

References Isis::Buffer::p_nbands.

Referenced by Isis::CubeIoHandler::bufferLessThan(), Isis::CubeIoHandler::findIntersection(), Isis::CubeIoHandler::read(), Isis::RegionalCachingAlgorithm::recommendChunksToFree(), Isis::Hillshade::shadedValue(), Isis::CubeIoHandler::synchronousWrite(), Isis::CubeIoHandler::writeIntoDouble(), and Isis::CubeIoHandler::writeIntoRaw().

bool Isis::BufferManager::begin ( )

inline

Moves the shape buffer to the first position.

Returns: bool

Definition at line 103 of file BufferManager.h.

References setpos().

Referenced by Isis::ProcessExport::GetBuffersBIL(), Isis::ProcessExport::GetBuffersBIP(), Isis::ProcessExport::GetBuffersBSQ(), Isis::MosaicSceneItem::getStretch(), Isis::ProcessByBrick::PrepProcessCubes(), Isis::ProcessByBoxcar::StartProcess(), Isis::ProcessRubberSheet::StartProcess(), Isis::ProcessExport::StartProcess(), and Isis::ProcessByBrick::StartProcess().

void Isis::Buffer::Copy	(	const Buffer &	in,
		bool	includeRawBuf = `true`
	)

inherited

Allows copying of the buffer contents to another Buffer.

Parameters

in	The Buffer to be copied.

Exceptions

Isis::iException::Programmer - Input and Output buffers are not the same size

Definition at line 259 of file Buffer.cpp.

References _FILEINFO_, Isis::Buffer::p_buf, Isis::Buffer::p_npixels, Isis::Buffer::p_pixelType, Isis::Buffer::p_rawbuf, Isis::Buffer::PixelType(), Isis::IException::Programmer, Isis::Buffer::size(), and Isis::SizeOf().

Referenced by Isis::Buffer::Buffer(), and Isis::FileTool::copy().

bool Isis::Buffer::CopyOverlapFrom ( const Buffer & in )

inherited

Allows copying of the buffer contents of a larger buffer to another same size or smaller Buffer, using their base positions to relate data.

This does not copy the raw buffer.

Parameters

in	The Buffer to be copied.

Returns: The operation was successful (the buffers overlapped)

Definition at line 288 of file Buffer.cpp.

References Isis::Buffer::Band(), Isis::Buffer::Index(), Isis::Buffer::Line(), Isis::Buffer::p_band, Isis::Buffer::p_line, Isis::Buffer::p_nbands, Isis::Buffer::p_nlines, Isis::Buffer::p_npixels, Isis::Buffer::p_nsamps, Isis::Buffer::p_sample, Isis::Buffer::Sample(), and Isis::Buffer::size().

double* Isis::Buffer::DoubleBuffer ( ) const

inlineinherited

Returns the value of the shape buffer.

Returns: double* The shape buffer

Definition at line 153 of file Buffer.h.

References Isis::Buffer::p_buf.

Referenced by Isis::AutoReg::ApplyGradientFilter(), Isis::Process::CalculateStatistics(), Isis::QnetTool::demRadius(), Isis::SpectralPlotTool::getSpectralStatistics(), Isis::Cube::histogram(), Isis::DemShape::localRadius(), Isis::HistogramTool::refreshPlot(), Isis::ProcessByQuickFilter::StartProcess(), Isis::Cube::statistics(), Isis::CubeIoHandler::writeIntoDouble(), and Isis::CubeIoHandler::writeIntoRaw().

bool Isis::BufferManager::end ( ) const

inline

Returns true if the shape buffer has accessed the end of the cube.

Returns: bool

Definition at line 122 of file BufferManager.h.

References p_currentMap, and p_nmaps.

Referenced by setpos(), Isis::ProcessByBoxcar::StartProcess(), Isis::ProcessRubberSheet::StartProcess(), Isis::ProcessExport::StartProcess(), and Isis::ProcessByBrick::StartProcess().

int Isis::Buffer::Index	(	const int	i_samp,
		const int	i_line,
		const int	i_band
	)		const

inherited

Given a sample, line, and band position, this returns the appropriate index in the shape buffer.

Parameters

i_samp	Sample position.
i_line	Line position.
i_band	Band position.

Returns: int Index at the specified sample, line and band.

Exceptions

Isis::iException::Programmer - Array Subscript not in range

Definition at line 205 of file Buffer.cpp.

References _FILEINFO_, Isis::Message::ArraySubscriptNotInRange(), Isis::Buffer::p_band, Isis::Buffer::p_line, Isis::Buffer::p_nbands, Isis::Buffer::p_nlines, Isis::Buffer::p_nsamps, Isis::Buffer::p_sample, and Isis::IException::Programmer.

Referenced by Isis::Buffer::CopyOverlapFrom(), Isis::ViewportBuffer::fillBuffer(), Isis::CubeIoHandler::writeIntoDouble(), and Isis::CubeIoHandler::writeIntoRaw().

int Isis::Buffer::Line ( const int index = 0 ) const

inherited

Returns the line position associated with a shape buffer index.

The shape buffer is one dimensional. Let us assume a nsamps=2, nlines=3, and nbands=2. Therefore the total size of the shape buffer is 12 and valid index values are 0-11. Line(0), Line(1), Line(6) and Line(7), will return a 1, Line(2), Line(3), Line(8) and Line(9) will return a 2, and Line(4), Line(5), Line(10), and Line(11) will return a 3.

Parameters

index Shape buffer index to map to a line position. Defaults to 0

Returns: int The absolute line number based on the buffer index

Definition at line 156 of file Buffer.cpp.

References Isis::Buffer::p_line, Isis::Buffer::p_nlines, and Isis::Buffer::p_nsamps.

Referenced by Isis::CubeIoHandler::bufferLessThan(), Isis::Buffer::CopyOverlapFrom(), Isis::CubeViewport::cubeDataChanged(), Isis::ViewportBuffer::DataReady(), Isis::ViewportBuffer::fillBuffer(), Isis::CubeIoHandler::findIntersection(), Isis::ImageImporter::operator()(), Isis::Nearest::operator()(), Isis::Average::operator()(), Isis::CubeDataThread::OverlapIndex(), Isis::Buffer::Position(), Isis::CubeIoHandler::read(), Isis::EditTool::redoEdit(), Isis::CubeIoHandler::synchronousWrite(), Isis::EditTool::undoEdit(), Isis::StreamExporter::writeGrayscale(), Isis::QtExporter::writeGrayscale(), Isis::StreamExporter::writeRgb(), Isis::QtExporter::writeRgb(), Isis::StreamExporter::writeRgba(), Isis::QtExporter::writeRgba(), and Isis::EditTool::writeToCube().

int Isis::Buffer::LineDimension ( ) const

inlineinherited

Returns the number of lines in the shape buffer.

Returns: int

Definition at line 94 of file Buffer.h.

References Isis::Buffer::p_nlines.

Referenced by Isis::CubeIoHandler::bufferLessThan(), Isis::CubeViewport::cubeDataChanged(), Isis::ViewportBuffer::fillBuffer(), Isis::CubeIoHandler::findIntersection(), Isis::CubeIoHandler::read(), Isis::RegionalCachingAlgorithm::recommendChunksToFree(), Isis::EditTool::redoEdit(), Isis::Hillshade::shadedValue(), Isis::CubeIoHandler::synchronousWrite(), Isis::EditTool::undoEdit(), and Isis::EditTool::writeToCube().

int Isis::BufferManager::MaxBands ( ) const

inlineprotected

Returns the number of bands in the cube.

Returns: int

Definition at line 159 of file BufferManager.h.

References p_maxBands.

Referenced by Isis::BandManager::SetBand().

int Isis::BufferManager::MaxLines ( ) const

inlineprotected

Returns the number of lines in the cube.

Returns: int

Definition at line 150 of file BufferManager.h.

References p_maxLines.

Referenced by Isis::LineManager::SetLine().

BigInt Isis::BufferManager::MaxMaps ( ) const

inlineprotected

Returns the maximum number of positions the shape buffer needs to cover the entire image (see setpos method for more info).

Returns: int

Definition at line 169 of file BufferManager.h.

References p_nmaps.

Referenced by Isis::Brick::Bricks(), and Isis::TileManager::Tiles().

int Isis::BufferManager::MaxSamples ( ) const

inlineprotected

Returns the number of samples in the cube.

Returns: int

Definition at line 141 of file BufferManager.h.

References p_maxSamps.

Referenced by Isis::SampleManager::SetSample().

bool Isis::BufferManager::next ( )

inline

Moves the shape buffer to the next position.

Returns true if the next position is valid.

Returns: bool

Definition at line 113 of file BufferManager.h.

References p_currentMap, and setpos().

Referenced by operator++(), Isis::ProcessByBoxcar::StartProcess(), and Isis::ProcessExport::StartProcess().

bool Isis::BufferManager::operator++ ( int )

inline

Moves the shape buffer to the next position.

Returns true if the next position is valid.

Returns: bool

Definition at line 88 of file BufferManager.h.

References next().

double& Isis::Buffer::operator[] ( const int index )

inlineinherited

Returns the value in the shape buffer at given index.

Parameters

index Index position in buffer. No out of bounds index is checked

Returns: double&

Definition at line 133 of file Buffer.h.

References Isis::Buffer::p_buf.

const double& Isis::Buffer::operator[] ( const int index ) const

inlineinherited

Returns the value in the shape buffer at given index.

Parameters

index Index position in buffer. No out of bounds index is checked

Returns: double

Definition at line 144 of file Buffer.h.

References Isis::Buffer::p_buf.

Isis::PixelType Isis::Buffer::PixelType ( ) const

inlineinherited

Returns the raw buffer pixel type.

Returns: Isis::PixelType

Definition at line 175 of file Buffer.h.

References Isis::Buffer::p_pixelType.

Referenced by Isis::Buffer::Copy().

void Isis::Buffer::Position	(	const int	index,
		int &	i_samp,
		int &	i_line,
		int &	i_band
	)		const

inherited

Returns the sample, line, and band position associated with a shape buffer index.

Performs the same function as the Sample, Line, and Band methods.

Parameters

index	Shape buffer index to map to a band position.
i_samp	Sample position in shape buffer at index.
i_line	Line position in shape buffer at index
i_band	Band position in shape buffer at index.

Definition at line 186 of file Buffer.cpp.

References Isis::Buffer::Band(), Isis::Buffer::Line(), and Isis::Buffer::Sample().

void* Isis::Buffer::RawBuffer ( ) const

inlineinherited

Returns a void pointer to the raw buffer.

Cast this void pointer using information from the PixelType() method

Returns: void* Pointer to the raw buffer

Definition at line 166 of file Buffer.h.

References Isis::Buffer::p_rawbuf.

Referenced by Isis::CubeIoHandler::writeIntoDouble().

int Isis::Buffer::Sample ( const int index = 0 ) const

inherited

Returns the sample position associated with a shape buffer index.

The shape buffer is one dimensional. Let us assume a nsamps=2, nlines=3, and nbands=2. Therefore the total size of the shape buffer is 12 and valid index values are 0-11. Sample(0), Sample(2), Sample(4), etc will return a 1 while Sample(1), Sample(3), Sample(5), etc will return a 2.

Parameters

index Shape buffer index to map to a sample position. Defaults to 0.

Returns: int The absolute sample number based on the buffer index.

Definition at line 139 of file Buffer.cpp.

References Isis::Buffer::p_nsamps, and Isis::Buffer::p_sample.

Referenced by Isis::CubeIoHandler::bufferLessThan(), Isis::Buffer::CopyOverlapFrom(), Isis::CubeViewport::cubeDataChanged(), Isis::ViewportBuffer::DataReady(), Isis::ViewportBuffer::fillBuffer(), Isis::CubeIoHandler::findIntersection(), Isis::SpectralDefinition2D::operator()(), Isis::CubeDataThread::OverlapIndex(), Isis::Buffer::Position(), Isis::CubeIoHandler::read(), Isis::EditTool::redoEdit(), Isis::CubeIoHandler::synchronousWrite(), Isis::EditTool::undoEdit(), and Isis::EditTool::writeToCube().

int Isis::Buffer::SampleDimension ( ) const

inlineinherited

Returns the number of samples in the shape buffer.

Returns: int

Definition at line 85 of file Buffer.h.

References Isis::Buffer::p_nsamps.

Referenced by Isis::CubeIoHandler::bufferLessThan(), Isis::CubeViewport::cubeDataChanged(), Isis::ViewportBuffer::fillBuffer(), Isis::CubeIoHandler::findIntersection(), Isis::ImageImporter::operator()(), Isis::CubeIoHandler::read(), Isis::RegionalCachingAlgorithm::recommendChunksToFree(), Isis::EditTool::redoEdit(), Isis::Hillshade::shadedValue(), Isis::CubeIoHandler::synchronousWrite(), Isis::EditTool::undoEdit(), Isis::StreamExporter::writeGrayscale(), Isis::QtExporter::writeGrayscale(), Isis::StreamExporter::writeRgb(), Isis::QtExporter::writeRgb(), Isis::StreamExporter::writeRgba(), Isis::QtExporter::writeRgba(), and Isis::EditTool::writeToCube().

void Isis::Buffer::SetBaseBand ( const int start_band )

inlineprotectedinherited

This method is used to set the base band position of the shape buffer.

Parameters

start_band Starting band to set

Reimplemented in Isis::Brick.

Definition at line 208 of file Buffer.h.

References Isis::Buffer::p_band.

Referenced by Isis::Buffer::SetBasePosition().

void Isis::Buffer::SetBaseLine ( const int start_line )

inlineprotectedinherited

This method is used to set the base line position of the shape buffer.

Parameters

start_line Starting line to set

Reimplemented in Isis::Brick.

Definition at line 198 of file Buffer.h.

References Isis::Buffer::p_line.

Referenced by Isis::Buffer::SetBasePosition().

void Isis::Buffer::SetBasePosition	(	const int	start_sample,
		const int	start_line,
		const int	start_band
	)

protectedinherited

This method is used to set the base position of the shape buffer.

In general it is used by BufferManager objects to progress sequentially through a cube by line, tile, boxcar, etc.

Parameters

start_sample	Starting sample to set.
start_line	Starting line to set.
start_band	Starting band to set.

Reimplemented in Isis::Brick.

Definition at line 118 of file Buffer.cpp.

References Isis::Buffer::SetBaseBand(), Isis::Buffer::SetBaseLine(), and Isis::Buffer::SetBaseSample().

Referenced by setpos(), and Isis::Portal::SetPosition().

void Isis::Buffer::SetBaseSample ( const int start_samp )

inlineprotectedinherited

This method is used to set the base sample position of the shape buffer.

Parameters

start_samp Starting sample to set

Reimplemented in Isis::Brick.

Definition at line 188 of file Buffer.h.

References Isis::Buffer::p_sample.

Referenced by Isis::Buffer::SetBasePosition().

void Isis::BufferManager::SetIncrements	(	const int	sinc,
		const int	linc,
		const int	binc
	)

protected

Sets how the shape is incremented through the cube.

By default (if this method is not invoked) shapes are moved sequentially through the cube with no overlap. For example, assume a 3 sample by 3 line tile buffer. It would first move across the image from left-to-right starting at sample 1, line 1, and band 1. Upon an increment it would be positioned at sample 4, line 1, and band 1. Each successive increment would cause the sample position to increase by 3 until it exceeds the number of samples in the cube. At that point the shape buffer would be positioned at sample 1, line 4, and band 1 (effectively moving to the next row of tiles). The shape would then continue moving across the cube until it reaches the edge again. Then the next row of tiles would be accessed until the shape reached the bottom of the cube. This default management can be overridden using this method. For example, by setting the increments to (6,3,1) we effectively skip every other tile. By setting them to (6,6,1) we skip every other tile and every other row of tiles. By setting them to (1,1,1) we essentially have NSxNLxNB positions in the cube and the 3x3 tile is managed such that the top left corner of the tile is moved over by 1 sample until it reaches the end of the line then down 1 line and so on until the end of the cube is reached.

Parameters

sinc	Sample increment
linc	Line increment
binc	Band increment

Definition at line 137 of file BufferManager.cpp.

References p_binc, p_boff, p_currentBand, p_currentLine, p_currentMap, p_currentSample, p_linc, p_loff, p_maxBands, p_maxLines, p_maxSamps, p_nmaps, p_sinc, and p_soff.

Referenced by Isis::BoxcarManager::BoxcarManager(), and BufferManager().

void Isis::BufferManager::SetOffsets	(	const int	soff,
		const int	loff,
		const int	boff
	)

protected

Sets the offset of the buffer.

By default (if this method is not invoked) the offsets are (0,0,0). Offsets are applied when computing the top-left corner of the shape buffer. When used in conjunction with the SetIncrements method, this allows for centering shape buffers around a pixel when passing in negative offsets. For example,with a 3x3x1 shape and offsets of (-1,-1,0) and increments of (1,1,1) would cause the manager to walk a 3x3 buffer through the entire image. Setting the manager position the beginning causes the 3x3 window to be positioned such that sample 1, line 1 of the cube would be at the center of the window and increment would cause sample 2, line 1 to be at the center of the window. Successive increments will move the window in the sample direction until the end of line is reached at which time the buffer would be centered on sample 1, line 2.

Parameters

soff	Sample offset
loff	Line offset
boff	Band offset

Definition at line 175 of file BufferManager.cpp.

References p_boff, p_loff, and p_soff.

Referenced by Isis::BoxcarManager::BoxcarManager().

bool Isis::BufferManager::setpos ( BigInt map )

Sets the position of the shape in the cube.

This shape fits into the cube a specific number of times.

When p_reverse is left false: (default) For example, a line shape on a 100 sample, 200 line, and 2 band cube would have 200*2 or 400 different positions as there are 400 total lines in the cube. Performing setpos(0) would position the shape at sample 1, line 1, and band 1. While setpos(200) would position the shape at sample 1, line 1, and band 2. Finally, setpos(399) would position the shape at sample 1, line 400, and band 2. Setpos returns true if it was sucessfully in setting the position, and false if the shape is at the end of the cube (beyond index 399 in the case of our example).

When p_reverse is set to true: Following the above cube with 100 samples, 200 lines, and 2 bands, performing the setpos(0) would still position the shape at sample 1, line 1, and band 1. However, setpos(1) would position the shape at sample 1, line 1, band 2, while setpos(200) would position the spame at sample 1, line 100, band 1. Setpos returns true of it was sucessfully in setting the position, and false if the shape is at the end of the cube(beyond final index).

Parameters

map	Shape buffer position value

Returns: bool True or False depending on whether the shape is at the end of the cube or not.

Exceptions

Isis::iException::Programmer - Invalid value for map argument

Definition at line 214 of file BufferManager.cpp.

References _FILEINFO_, end(), p_binc, p_boff, p_currentBand, p_currentLine, p_currentMap, p_currentSample, p_linc, p_loff, p_maxBands, p_maxLines, p_maxSamps, p_reverse, p_sinc, p_soff, Isis::IException::Programmer, and Isis::Buffer::SetBasePosition().

Referenced by begin(), next(), Isis::ProcessByBrick::ProcessCubeInPlaceFunctor< T >::operator()(), Isis::ProcessByBrick::ProcessCubeFunctor< T >::operator()(), Isis::ProcessByBrick::ProcessCubesFunctor< T >::operator()(), Isis::BandManager::SetBand(), Isis::Brick::SetBrick(), Isis::LineManager::SetLine(), Isis::SampleManager::SetSample(), and Isis::TileManager::SetTile().

int Isis::Buffer::size ( ) const

inlineinherited

Returns the total number of pixels in the shape buffer.

Returns: int

Definition at line 112 of file Buffer.h.

References Isis::Buffer::p_npixels.

Referenced by Isis::ProcessMosaic::BandComparison(), Isis::CubeDataThreadTester::BrickChanged(), Isis::Process::CalculateStatistics(), Isis::Buffer::Copy(), Isis::Buffer::CopyOverlapFrom(), Isis::ViewportBuffer::DataReady(), Isis::ViewportBuffer::fillBuffer(), Isis::ProcessMapMosaic::FillNull(), Isis::Cube::histogram(), Isis::ProcessExport::isisOut16s(), Isis::ProcessExport::isisOut16u(), Isis::ProcessExport::isisOut32(), Isis::ProcessExport::isisOut8(), Isis::Average::operator()(), Isis::CubeDataThread::OverlapIndex(), Isis::Calculator::Push(), Isis::CubeIoHandler::read(), Isis::CubeDataThreadTester::ReadBrick(), Isis::CubeDataThreadTester::ReadWriteBrick(), Isis::ProcessMosaic::ResetCountBands(), Isis::ProcessMosaic::ResetOriginBand(), Isis::Hillshade::shadedValue(), Isis::AutoReg::SobelGradient(), Isis::ProcessByBoxcar::StartProcess(), Isis::ProcessExport::StartProcess(), Isis::ProcessMosaic::StartProcess(), Isis::Cube::statistics(), and Isis::EditTool::writeToCube().

Member Data Documentation

int Isis::Buffer::p_band

protectedinherited

Starting band to read/write.

Definition at line 219 of file Buffer.h.

Referenced by Isis::Buffer::Band(), Isis::Buffer::Buffer(), Isis::Buffer::CopyOverlapFrom(), Isis::Buffer::Index(), and Isis::Buffer::SetBaseBand().

int Isis::BufferManager::p_binc

private

Band increment.

Definition at line 183 of file BufferManager.h.

Referenced by SetIncrements(), and setpos().

int Isis::BufferManager::p_boff

private

Band offset.

Definition at line 187 of file BufferManager.h.

Referenced by SetIncrements(), SetOffsets(), and setpos().

double* Isis::Buffer::p_buf

protectedinherited

Shape buffer allocated to the size of npixels for handling reads/writes.

Definition at line 223 of file Buffer.h.

Referenced by Isis::Buffer::Allocate(), Isis::Buffer::at(), Isis::Buffer::Copy(), Isis::Buffer::DoubleBuffer(), Isis::Buffer::operator=(), Isis::Buffer::operator[](), Isis::Brick::Resize(), and Isis::Buffer::~Buffer().

int Isis::BufferManager::p_currentBand

private

Current band.

Definition at line 191 of file BufferManager.h.

Referenced by SetIncrements(), and setpos().

int Isis::BufferManager::p_currentLine

private

Current line.

Definition at line 190 of file BufferManager.h.

Referenced by SetIncrements(), and setpos().

BigInt Isis::BufferManager::p_currentMap

private

Current buffer map position.

Definition at line 194 of file BufferManager.h.

Referenced by end(), next(), SetIncrements(), and setpos().

int Isis::BufferManager::p_currentSample

private

Current sample.

Definition at line 189 of file BufferManager.h.

Referenced by SetIncrements(), and setpos().

int Isis::BufferManager::p_linc

private

Line increment.

Definition at line 182 of file BufferManager.h.

Referenced by SetIncrements(), and setpos().

int Isis::Buffer::p_line

protectedinherited

Starting line to read/write.

Definition at line 216 of file Buffer.h.

Referenced by Isis::Buffer::Buffer(), Isis::Buffer::CopyOverlapFrom(), Isis::Buffer::Index(), Isis::Buffer::Line(), and Isis::Buffer::SetBaseLine().

int Isis::BufferManager::p_loff

private

Line offset.

Definition at line 186 of file BufferManager.h.

Referenced by SetIncrements(), SetOffsets(), and setpos().

int Isis::BufferManager::p_maxBands

private

Maximum bands to map.

Definition at line 179 of file BufferManager.h.

Referenced by MaxBands(), SetIncrements(), and setpos().

int Isis::BufferManager::p_maxLines

private

Maximum lines to map.

Definition at line 178 of file BufferManager.h.

Referenced by MaxLines(), SetIncrements(), and setpos().

int Isis::BufferManager::p_maxSamps

private

Maximum samples to map.

Definition at line 177 of file BufferManager.h.

Referenced by MaxSamples(), SetIncrements(), and setpos().

int Isis::Buffer::p_nbands

protectedinherited

Number of bands to read/write.

Definition at line 220 of file Buffer.h.

Referenced by Isis::Buffer::BandDimension(), Isis::Buffer::Buffer(), Isis::Buffer::CopyOverlapFrom(), Isis::Buffer::Index(), and Isis::Brick::Resize().

int Isis::Buffer::p_nlines

protectedinherited

Number of lines to read/write.

Definition at line 217 of file Buffer.h.

Referenced by Isis::Buffer::Band(), Isis::Buffer::Buffer(), Isis::Buffer::CopyOverlapFrom(), Isis::Buffer::Index(), Isis::Buffer::Line(), Isis::Buffer::LineDimension(), and Isis::Brick::Resize().

BigInt Isis::BufferManager::p_nmaps

private

Total number of objects to map.

Definition at line 193 of file BufferManager.h.

Referenced by end(), MaxMaps(), and SetIncrements().

int Isis::Buffer::p_npixels

protectedinherited

Number of pixels (nsamps * nlines * nbands)

Definition at line 222 of file Buffer.h.

Referenced by Isis::Buffer::Allocate(), Isis::Buffer::at(), Isis::Buffer::Buffer(), Isis::Buffer::Copy(), Isis::Buffer::CopyOverlapFrom(), Isis::Buffer::operator=(), Isis::Brick::Resize(), and Isis::Buffer::size().

int Isis::Buffer::p_nsamps

protectedinherited

Number of samples to read/write.

Definition at line 214 of file Buffer.h.

Referenced by Isis::Buffer::Band(), Isis::Buffer::Buffer(), Isis::Buffer::CopyOverlapFrom(), Isis::Buffer::Index(), Isis::Buffer::Line(), Isis::Brick::Resize(), Isis::Buffer::Sample(), and Isis::Buffer::SampleDimension().

const Isis::PixelType Isis::Buffer::p_pixelType

protectedinherited

The pixel type of the raw buffer.

Definition at line 226 of file Buffer.h.

Referenced by Isis::Buffer::Allocate(), Isis::Buffer::Copy(), and Isis::Buffer::PixelType().

void* Isis::Buffer::p_rawbuf

protectedinherited

The raw dm read from the disk.

Definition at line 227 of file Buffer.h.

Referenced by Isis::Buffer::Allocate(), Isis::Buffer::Copy(), Isis::Buffer::RawBuffer(), Isis::Brick::Resize(), and Isis::Buffer::~Buffer().

bool Isis::BufferManager::p_reverse

private

If true the axies are processed in Band, Line, Sample order (e.g., BIL).

If left false, the axies are processed in the Sample, Line, Band order (e.g., BSQ, BIP).

Definition at line 201 of file BufferManager.h.

Referenced by BufferManager(), and setpos().

int Isis::Buffer::p_sample

protectedinherited

Starting sample to read/write.

Definition at line 213 of file Buffer.h.

Referenced by Isis::Buffer::Buffer(), Isis::Buffer::CopyOverlapFrom(), Isis::Buffer::Index(), Isis::Buffer::Sample(), and Isis::Buffer::SetBaseSample().

int Isis::BufferManager::p_sinc

private

Sample increment.

Definition at line 181 of file BufferManager.h.

Referenced by SetIncrements(), and setpos().

int Isis::BufferManager::p_soff

private

Sample offset.

Definition at line 185 of file BufferManager.h.

Referenced by SetIncrements(), SetOffsets(), and setpos().

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

src/base/objs/BufferManager/BufferManager.h
src/base/objs/BufferManager/BufferManager.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation