Buffer for containing a three dimensional section of an image. More...

#include <Brick.h>

Inheritance diagram for Isis::Brick:

Collaboration diagram for Isis::Brick:

Public Member Functions
	Brick (const int nsamps, const int nlines, const int nbands, const Isis::PixelType type, bool reverse=false)
	Constructs a Brick object. More...

	Brick (const Isis::Cube &cube, const int &bufNumSamples, const int &bufNumLines, const int &bufNumBands, bool reverse=false)
	Constructs a Brick object. More...

	Brick (int maxSamples, int maxLines, int maxBands, int bufNumSamples, int bufNumLines, int bufNumBands, Isis::PixelType type, bool reverse=false)
	Constructs a Brick object of the specified buffer size and area size to map. More...

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. More...

void	SetBaseSample (const int start_samp)
	This method is used to set the base sample position of the shape buffer. More...

void	SetBaseLine (const int start_line)
	This method is used to set the base line position of the shape buffer. More...

void	SetBaseBand (const int start_band)
	This method is used to set the base band position of the shape buffer. More...

void	Resize (const int nsamps, const int nlines, const int nbands)
	Resizes the memory buffer to the specified number of samples, lines, and bands. More...

bool	SetBrick (const int brick)
	This method is used to set the position of the brick. More...

int	Bricks ()
	Returns the number of Bricks in the cube. More...

bool	operator++ (int)
	Moves the shape buffer to the next position. More...

BufferManager &	operator+= (int i)
	Moves the shape buffer by a certain amount. More...

bool	begin ()
	Moves the shape buffer to the first position. More...

bool	next ()
	Moves the shape buffer to the next position. More...

bool	end () const
	Returns true if the shape buffer has accessed the end of the cube. More...

bool	setpos (BigInt map)
	Sets the position of the shape in the cube. More...

void	swap (BufferManager &other)
	Swaps the values of this BufferManager with that of another. More...

int	SampleDimension () const
	Returns the number of samples in the shape buffer. More...

int	LineDimension () const
	Returns the number of lines in the shape buffer. More...

int	BandDimension () const
	Returns the number of bands in the shape buffer. More...

int	size () const
	Returns the total number of pixels in the shape buffer. More...

int	Sample (const int index=0) const
	Returns the sample position associated with a shape buffer index. More...

int	Line (const int index=0) const
	Returns the line position associated with a shape buffer index. More...

int	Band (const int index=0) const
	Returns the band position associated with a shape buffer index. More...

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. More...

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. More...

double	at (const int index) const
	Returns the value in the shape buffer at the given index. More...

double &	operator[] (const int index)
	Returns the value in the shape buffer at given index. More...

const double &	operator[] (const int index) const
	Returns the value in the shape buffer at given index. More...

double *	DoubleBuffer () const
	Returns the value of the shape buffer. More...

void	Copy (const Buffer &in, bool includeRawBuf=true)
	Allows copying of the buffer contents to another Buffer. More...

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. More...

void *	RawBuffer () const
	Returns a void pointer to the raw buffer. More...

Isis::PixelType	PixelType () const
	Returns the raw buffer pixel type. More...

Protected Member Functions
int	MaxSamples () const
	Returns the number of samples in the cube. More...

int	MaxLines () const
	Returns the number of lines in the cube. More...

int	MaxBands () const
	Returns the number of bands in the cube. More...

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

void	SetIncrements (const int sinc, const int linc, const int binc)
	Sets how the shape is incremented through the cube. More...

void	SetOffsets (const int soff, const int loff, const int boff)
	Sets the offset of the buffer. More...

void	Allocate ()
	Size or resize the memory buffer. More...

Protected Attributes
int	p_sample
	Starting sample to read/write. More...

int	p_nsamps
	Number of samples to read/write. More...

int	p_line
	Starting line to read/write. More...

int	p_nlines
	Number of lines to read/write. More...

int	p_band
	Starting band to read/write. More...

int	p_nbands
	Number of bands to read/write. More...

int	p_npixels
	Number of pixels (nsamps * nlines * nbands) More...

double *	p_buf
	Shape buffer allocated to the size of npixels for handling reads/writes. More...

const Isis::PixelType	p_pixelType
	The pixel type of the raw buffer. More...

void *	p_rawbuf
	The raw dm read from the disk. More...

Detailed Description

Buffer for containing a three dimensional section of an image.

This class is a Buffer. The shape of the buffer is three dimensional in the line, sample, and band directions. This class provides a random access window into a cube. The position can be set to any line, sample and band, including outside the image.

Author: 2005-01-18 Jeff Anderson

Constructor & Destructor Documentation

◆ Brick() [1/3]

Isis::Brick::Brick	(	const int	nsamps,
		const int	nlines,
		const int	nbands,
		const Isis::PixelType	type,
		bool	reverse = `false`
	)

inline

Constructs a Brick object.

Parameters

nsamps	Number of samples in shape buffer
nlines	Number of lines in shape buffer
nbands	Number of bands in 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.

◆ Brick() [2/3]

Isis::Brick::Brick	(	const Isis::Cube &	cube,
		const int &	bufNumSamples,
		const int &	bufNumLines,
		const int &	bufNumBands,
		bool	reverse = `false`
	)

inline

Constructs a Brick object.

Parameters

&cube	Reference to the cube to calculate a Brick from
&bufNumSamples	Reference to the number of samples in shape buffer
&bufNumLines	Reference to the number of lines in shape buffer
&bufNumBands	Reference to the number of bands in shape 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.

◆ Brick() [3/3]

Isis::Brick::Brick	(	int	maxSamples,
		int	maxLines,
		int	maxBands,
		int	bufNumSamples,
		int	bufNumLines,
		int	bufNumBands,
		Isis::PixelType	type,
		bool	reverse = `false`
	)

inline

Constructs a Brick object of the specified buffer size and area size to map.

Parameters

maxSamples	Maximum number of samples to map
maxLines	Maximum number of lines to map
maxBands	Maximum number of bands to map
bufNumSamples	Number of samples in shape buffer
bufNumLines	Number of lines in shape buffer
bufNumBands	Number of bands in 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.

Member Function Documentation

◆ Allocate()

void Isis::Buffer::Allocate ( )

protectedinherited

Size or resize the memory buffer.

Exceptions

Isis::iException::System - Memory allocation failed

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 Resize().

◆ at()

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

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::CubeDataThreadTester::ReadBrick(), and Isis::CubeDataThreadTester::ReadWriteBrick().

◆ Band()

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.

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

Referenced by Isis::Buffer::CopyOverlapFrom(), Isis::IndependentCubeViewport::cubeDataChanged(), Isis::ImageImporter::operator()(), Isis::SpectralDefinition2D::operator()(), Isis::Average::operator()(), Isis::Equalization::ApplyFunctor::operator()(), Isis::Buffer::Position(), Isis::CubeIoHandler::read(), and Isis::ProcessRubberSheet::StartProcess().

◆ BandDimension()

int Isis::Buffer::BandDimension ( ) const

inlineinherited

Returns the number of bands in the shape buffer.

Returns: int

References Isis::Buffer::p_nbands.

Referenced by Isis::IndependentCubeViewport::cubeDataChanged(), Isis::CubeIoHandler::read(), Isis::RegionalCachingAlgorithm::recommendChunksToFree(), and Isis::Hillshade::shadedValue().

◆ begin()

bool Isis::BufferManager::begin ( )

inlineinherited

Moves the shape buffer to the first position.

Returns: bool

References Isis::BufferManager::setpos().

Referenced by Isis::Cube::copy(), Isis::ProcessExport::GetBuffersBIL(), Isis::ProcessExport::GetBuffersBIP(), Isis::ProcessExport::GetBuffersBSQ(), Isis::ProcessByBoxcar::StartProcess(), Isis::ProcessRubberSheet::StartProcess(), Isis::ProcessExport::StartProcess(), and Isis::ProcessByBrick::StartProcess().

◆ Bricks()

int Isis::Brick::Bricks ( )

inline

Returns the number of Bricks in the cube.

Returns: int

References Isis::BufferManager::MaxMaps().

Referenced by Isis::ProcessByBrick::ProcessCubeInPlace(), and Isis::ProcessByBrick::StartProcess().

◆ Copy()

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.
includeRawBuf	Whether to include raw dm read from disk

Exceptions

Isis::iException::Programmer	- Input and Output buffers are not the same size
Isis::iException::Programmer	- Input and Output buffers do not use the same pixel type

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().

◆ CopyOverlapFrom()

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)

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().

◆ DoubleBuffer()

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

inlineinherited

Returns the value of the shape buffer.

Returns: double* The shape buffer

References Isis::Buffer::p_buf.

Referenced by Isis::Process::CalculateStatistics(), Isis::IndependentCubeViewport::cubeDataChanged(), Isis::Cube::histogram(), Isis::DemShape::localRadius(), Isis::HistogramTool::refreshPlot(), Isis::ProcessByQuickFilter::StartProcess(), and Isis::Cube::statistics().

◆ end()

bool Isis::BufferManager::end ( ) const

inlineinherited

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

Returns: bool

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

◆ Index()

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

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(), and Isis::ViewportBuffer::fillBuffer().

◆ Line()

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

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

Referenced by Isis::Buffer::CopyOverlapFrom(), Isis::IndependentCubeViewport::cubeDataChanged(), Isis::CubeViewport::cubeDataChanged(), Isis::ViewportBuffer::DataReady(), Isis::ViewportBuffer::fillBuffer(), Isis::ImageImporter::operator()(), Isis::Nearest::operator()(), Isis::Average::operator()(), Isis::Equalization::CalculateFunctor::operator()(), Isis::Buffer::Position(), Isis::CubeIoHandler::read(), Isis::StreamExporter::writeGrayscale(), Isis::QtExporter::writeGrayscale(), Isis::StreamExporter::writeRgb(), Isis::QtExporter::writeRgb(), Isis::StreamExporter::writeRgba(), and Isis::QtExporter::writeRgba().

◆ LineDimension()

int Isis::Buffer::LineDimension ( ) const

inlineinherited

Returns the number of lines in the shape buffer.

Returns: int

References Isis::Buffer::p_nlines.

Referenced by Isis::IndependentCubeViewport::cubeDataChanged(), Isis::CubeViewport::cubeDataChanged(), Isis::ViewportBuffer::fillBuffer(), Isis::Equalization::CalculateFunctor::operator()(), Isis::CubeIoHandler::read(), Isis::RegionalCachingAlgorithm::recommendChunksToFree(), and Isis::Hillshade::shadedValue().

◆ MaxBands()

int Isis::BufferManager::MaxBands ( ) const

inlineprotectedinherited

Returns the number of bands in the cube.

Returns: int

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

◆ MaxLines()

int Isis::BufferManager::MaxLines ( ) const

inlineprotectedinherited

Returns the number of lines in the cube.

Returns: int

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

◆ MaxMaps()

BigInt Isis::BufferManager::MaxMaps ( ) const

inlineprotectedinherited

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

Returns: int

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

◆ MaxSamples()

int Isis::BufferManager::MaxSamples ( ) const

inlineprotectedinherited

Returns the number of samples in the cube.

Returns: int

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

◆ next()

bool Isis::BufferManager::next ( )

inlineinherited

Moves the shape buffer to the next position.

Returns true if the next position is valid.

Returns: bool

References Isis::BufferManager::setpos().

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

◆ operator++()

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

inlineinherited

Moves the shape buffer to the next position.

Returns true if the next position is valid.

Returns: bool

References Isis::BufferManager::next().

◆ operator+=()

BufferManager& Isis::BufferManager::operator+= ( int i )

inlineinherited

Moves the shape buffer by a certain amount.

Returns a pointer to the BufferManager it was called on.

Parameters

i	How far to shift the shape buffer

Returns: BufferManager

References Isis::BufferManager::setpos().

◆ operator[]() [1/2]

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&

References Isis::Buffer::p_buf.

◆ operator[]() [2/2]

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

References Isis::Buffer::p_buf.

◆ PixelType()

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

inlineinherited

Returns the raw buffer pixel type.

Returns: Isis::PixelType

References Isis::Buffer::p_pixelType.

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

◆ Position()

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.

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

◆ RawBuffer()

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

References Isis::Buffer::p_rawbuf.

◆ Resize()

void Isis::Brick::Resize	(	const int	nsamps,
		const int	nlines,
		const int	nbands
	)

Resizes the memory buffer to the specified number of samples, lines, and bands.

Parameters

nsamps	Number of samples
nlines	Number of lines
nbands	Number of bands

References Isis::Buffer::Allocate(), Isis::Buffer::p_buf, Isis::Buffer::p_nbands, Isis::Buffer::p_nlines, Isis::Buffer::p_npixels, Isis::Buffer::p_nsamps, and Isis::Buffer::p_rawbuf.

◆ Sample()

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.

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

Referenced by Isis::Buffer::CopyOverlapFrom(), Isis::IndependentCubeViewport::cubeDataChanged(), Isis::CubeViewport::cubeDataChanged(), Isis::ViewportBuffer::DataReady(), Isis::ViewportBuffer::fillBuffer(), Isis::SpectralDefinition2D::operator()(), Isis::Buffer::Position(), and Isis::CubeIoHandler::read().

◆ SampleDimension()

int Isis::Buffer::SampleDimension ( ) const

inlineinherited

Returns the number of samples in the shape buffer.

Returns: int

References Isis::Buffer::p_nsamps.

Referenced by Isis::IndependentCubeViewport::cubeDataChanged(), Isis::CubeViewport::cubeDataChanged(), Isis::ViewportBuffer::fillBuffer(), Isis::ImageImporter::operator()(), Isis::CubeIoHandler::read(), Isis::RegionalCachingAlgorithm::recommendChunksToFree(), Isis::Hillshade::shadedValue(), Isis::StreamExporter::writeGrayscale(), Isis::QtExporter::writeGrayscale(), Isis::StreamExporter::writeRgb(), Isis::QtExporter::writeRgb(), Isis::StreamExporter::writeRgba(), and Isis::QtExporter::writeRgba().

◆ SetBaseBand()

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

inline

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

Parameters

start_band Starting band to set

References Isis::Buffer::SetBaseBand().

◆ SetBaseLine()

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

inline

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

Parameters

start_line Starting line to set

References Isis::Buffer::SetBaseLine().

◆ SetBasePosition()

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

inline

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

It is used to progress sequentially through a cube by brick.

Parameters

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

References Isis::Buffer::SetBasePosition().

Referenced by Isis::CubeViewport::bluePixel(), Isis::CubeViewport::grayPixel(), Isis::CubeViewport::greenPixel(), Isis::StretchTool::histFromCube(), Isis::EditTool::mouseButtonRelease(), Isis::OverlapStatistics::OverlapStatistics(), Isis::CubeViewport::redPixel(), Isis::HistogramTool::refreshPlot(), and Isis::StretchTool::statsFromCube().

◆ SetBaseSample()

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

inline

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

Parameters

start_samp Starting sample to set

References Isis::Buffer::SetBaseSample().

◆ SetBrick()

bool Isis::Brick::SetBrick ( const int brick )

This method is used to set the position of the brick.

Sets the current brick as requested.

Parameters

brick Brick number to move to.

Returns: bool Is the brick at the end of the cube?

Parameters

brick The brick number within a cube. This number starts with the upper left corner of the cube and proceedes across the samples then down the lines and lastly through the bands. The first brick starts at (1,1,1). The last brick contains the point (cubeSamples,cubeLines,cubeBands).

Returns: bool

Exceptions

Isis::iException::Programmer - invalid argument value

References _FILEINFO_, Isis::IException::Programmer, and Isis::BufferManager::setpos().

◆ SetIncrements()

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

protectedinherited

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

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

◆ SetOffsets()

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

protectedinherited

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

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

◆ setpos()

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

inherited

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

References _FILEINFO_, Isis::BufferManager::end(), Isis::IException::Programmer, and Isis::Buffer::SetBasePosition().

Referenced by Isis::BufferManager::begin(), Isis::BufferManager::next(), Isis::BufferManager::operator+=(), Isis::BandManager::SetBand(), SetBrick(), Isis::LineManager::SetLine(), Isis::SampleManager::SetSample(), and Isis::TileManager::SetTile().

◆ size()

int Isis::Buffer::size ( ) const

inlineinherited

Returns the total number of pixels in the shape buffer.

Returns: int

References Isis::Buffer::p_npixels.

Referenced by Isis::HiEqualization::HiCalculateFunctor::addStats(), Isis::Equalization::CalculateFunctor::addStats(), Isis::CubeDataThreadTester::BrickChanged(), Isis::Process::CalculateStatistics(), Isis::Buffer::Copy(), Isis::Buffer::CopyOverlapFrom(), Isis::IndependentCubeViewport::cubeDataChanged(), Isis::ViewportBuffer::DataReady(), Isis::ViewportBuffer::fillBuffer(), Isis::Cube::histogram(), Isis::Average::operator()(), Isis::Equalization::ApplyFunctor::operator()(), Isis::Calculator::Push(), Isis::CubeIoHandler::read(), Isis::CubeDataThreadTester::ReadBrick(), Isis::CubeDataThreadTester::ReadWriteBrick(), Isis::Hillshade::shadedValue(), Isis::ProcessByBoxcar::StartProcess(), Isis::ProcessExport::StartProcess(), Isis::ProcessMosaic::StartProcess(), and Isis::Cube::statistics().

◆ swap()

void Isis::BufferManager::swap ( BufferManager & other )

inherited

Swaps the values of this BufferManager with that of another.

Parameters

&other Reference to a BufferManager to swap with

Referenced by Isis::BufferManager::operator=().

Member Data Documentation

◆ p_band

int Isis::Buffer::p_band

protectedinherited

Starting band to read/write.

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

◆ p_buf

double* Isis::Buffer::p_buf

protectedinherited

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

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

◆ p_line

int Isis::Buffer::p_line

protectedinherited

Starting line to read/write.

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

◆ p_nbands

int Isis::Buffer::p_nbands

protectedinherited

Number of bands to read/write.

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

◆ p_nlines

int Isis::Buffer::p_nlines

protectedinherited

Number of lines to read/write.

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

◆ p_npixels

int Isis::Buffer::p_npixels

protectedinherited

Number of pixels (nsamps * nlines * nbands)

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

◆ p_nsamps

int Isis::Buffer::p_nsamps

protectedinherited

Number of samples to read/write.

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

◆ p_pixelType

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

protectedinherited

The pixel type of the raw buffer.

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

◆ p_rawbuf

void* Isis::Buffer::p_rawbuf

protectedinherited

The raw dm read from the disk.

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

◆ p_sample

int Isis::Buffer::p_sample

protectedinherited

Starting sample to read/write.

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

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

/usgs/pkgs/isis3.9.0_docs/ISIS3/isis/src/base/objs/Brick/Brick.h
/usgs/pkgs/isis3.9.0_docs/ISIS3/isis/src/base/objs/Brick/Brick.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Brick() [1/3]

◆ Brick() [2/3]

◆ Brick() [3/3]

Member Function Documentation

◆ Allocate()

◆ at()

◆ Band()

◆ BandDimension()

◆ begin()

◆ Bricks()

◆ Copy()

◆ CopyOverlapFrom()

◆ DoubleBuffer()

◆ end()

◆ Index()

◆ Line()

◆ LineDimension()

◆ MaxBands()

◆ MaxLines()

◆ MaxMaps()

◆ MaxSamples()

◆ next()

◆ operator++()

◆ operator+=()

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ PixelType()

◆ Position()

◆ RawBuffer()

◆ Resize()

◆ Sample()

◆ SampleDimension()

◆ SetBaseBand()

◆ SetBaseLine()

◆ SetBasePosition()

◆ SetBaseSample()

◆ SetBrick()

◆ SetIncrements()

◆ SetOffsets()

◆ setpos()

◆ size()

◆ swap()

Member Data Documentation

◆ p_band

◆ p_buf

◆ p_line

◆ p_nbands

◆ p_nlines

◆ p_npixels

◆ p_nsamps

◆ p_pixelType

◆ p_rawbuf

◆ p_sample