A small chip of data used for pattern matching. More...

#include <Chip.h>

Collaboration diagram for Isis::Chip:

Public Member Functions
	Chip ()
	Constructs a Chip.

	Chip (const Chip &other)
	Constructs a copy of the passed in chip.

	Chip (const int samples, const int lines)
	Construct a Chip with specified dimensions.

virtual	~Chip ()
	Destroys the Chip object.

void	SetSize (const int samples, const int lines)
	Change the size of the Chip.

bool	IsInsideChip (double sample, double line)

int	Samples () const

int	Lines () const

QString	FileName () const

void	SetAllValues (const double &d)
	Single value assignment operator.

void	SetValue (int sample, int line, const double &value)
	Sets a value in the chip.

double	GetValue (int sample, int line)
	Loads a Chip with a value.

double	GetValue (int sample, int line) const
	Get a value from a Chip.

void	TackCube (const double cubeSample, const double cubeLine)
	This sets which cube position will be located at the chip tack position.

int	TackSample () const
	This method returns a chip's fixed tack sample; the middle of the chip.

int	TackLine () const
	This method returns a chip's fixed tack line; the middle of the chip.

void	Load (Cube &cube, const double rotation=0.0, const double scale=1.0, const int band=1)
	Load cube data into the Chip.

void	Load (Cube &cube, Chip &match, Cube &matchChipCube, const double scale=1.0, const int band=1)
	Loads cube data into the Chip.

void	Load (Cube &cube, const Affine &affine, const bool &keepPoly=true, const int band=1)
	Load a chip using an Affine transform as provided by caller.

void	SetChipPosition (const double sample, const double line)
	Compute the position of the cube given a chip coordinate.

double	CubeSample () const

double	CubeLine () const

void	SetCubePosition (const double sample, const double line)
	Compute the position of the chip given a cube coordinate.

double	ChipSample () const

double	ChipLine () const

void	SetValidRange (const double minimum=Isis::ValidMinimum, const double maximum=Isis::ValidMaximum)
	Set the valid range of data in the chip.

bool	IsValid (int sample, int line)

bool	IsValid (double percentage)
	Return if total number of valid pixels in chip meets a specified percentage of the entire chip.

Chip	Extract (int samples, int lines, int samp, int line)
	Extract a sub-chip from a chip.

void	Extract (int samp, int line, Chip &output)
	Extract a subchip centered at the designated coordinate.

Isis::Statistics *	Statistics ()
	Returns a statistics object of the current data in the chip.

void	Extract (Chip &output, Affine &affine)
	Extract a subchip of this chip using an Affine transform.

void	Write (const QString &filename)
	Writes the contents of the Chip to a cube.

void	SetClipPolygon (const geos::geom::MultiPolygon &clipPolygon)
	Sets the clipping polygon for this chip.

Chip &	operator= (const Chip &other)
	Copy assignment operator.

const Affine &	GetTransform () const
	Returns the Affine transformation of chip-to-cube indices.

void	SetTransform (const Affine &affine, const bool &keepPoly=true)
	Sets the internal Affine transform to new translation.

Interpolator::interpType	GetReadInterpolator ()
	Access method that returns the Interpolator Type used for loading a chip.

void	SetReadInterpolator (const Interpolator::interpType type)
	Sets Interpolator Type for loading a chip.

Private Member Functions
void	Init (const int samples, const int lines)
	Common initialization used by constructors.

void	Read (Cube &cube, const int band)
	This method reads data from a cube and puts it into the chip.

std::vector< int >	MovePoints (int startSamp, int startLine, int endSamp, int endLine)
	This method is called by Load() to move a control point across the chip.

bool	PointsColinear (double x0, double y0, double x1, double y1, double x2, double y2, double tol)
	This method is called by Load() to determine whether the given 3 points are nearly colinear.

Private Attributes
int	m_chipSamples
	Number of samples in the chip.

int	m_chipLines
	Number of lines in the chip.

std::vector< std::vector< double > >	m_buf
	Chip buffer.

int	m_tackSample
	Middle sample of the chip.

int	m_tackLine
	Middle line of the chip.

double	m_cubeTackSample
	cube sample at the chip tack

double	m_cubeTackLine
	cube line at the chip tack

double	m_validMinimum
	valid minimum chip pixel value

double	m_validMaximum
	valid maximum chip pixel value

double	m_chipSample
	chip sample set by SetChip/CubePosition

double	m_chipLine
	chip line set by SetChip/CubePosition

double	m_cubeSample
	cube sample set by SetCubePosition

double	m_cubeLine
	cube line set by SetCubePosition

geos::geom::MultiPolygon *	m_clipPolygon
	clipping polygon set by SetClipPolygon

Affine	m_affine
	Transform set by SetTransform.

Interpolator::interpType	m_readInterpolator
	Interpolator type set by.

QString	m_filename
	FileName of loaded cube.

Detailed Description

A small chip of data used for pattern matching.

A chip is a small rectangular area that can be used for pattern matching. Data can be loaded into the chip manually or by reading directly from a cube.

Author: 2005-05-05 Jeff Anderson

See also: AutoReg; AutoRegFactory

History

2006-07-11 Tracie Sucharski - Added reLoad method to use m_cube instead of cube passed in.

2006-08-03 Tracie Sucharski - Added Load and ReLoad method to apply scale factor to chip.

2006-08-04 Stuart Sides - Added SetClipPolygon method. If the clip polygon is set all pixel values outside the polygon will be set to NULL.

2007-10-01 Steven Koechle - Fixed inc in LoadChip to fix an infinite loop problem when x.size() never grew to be more than 3.

2009-01-19 Steven Koechle - Fixed memory leak

2009-06-02 Stacy Alley - Added a check in the SetSize() method to make sure the given samples and lines are not equal to or less than zero.

2009-08-19 Kris Becker - Added new Extract method that applies an Affine transform to the extract a portion of the chip; added an assigment operator that sets the entire chip to a single value for convenience. Added a getter that returns a const reference to the internal Affine transform of this chip.

2009-08-20 Steven Lambright - Removed local cube pointer and parenthesis operator

2009-08-20 Travis Addair - Added Statistics method

2009-08-28 Kris Becker - Added new Affine setter method to establish a new Affine transform to the chip; added another Load method that uses a new Affine transform to load a chip from a cube.

2009-09-01 Travis Addair - Added valid Min/Max pixel value functionality for Statistics method

2010-01-28 Tracie Sucharski - In the Load method (with match chip) when calculating control points away from the corners, added a linc to move into the center of the chip in a non-linear fashion to prevent control points that fall in a line and cause the matrix inversion to fail.

2010-05-24 Jeannie Walldren - Fixed bug in the Load() method (with match chip). Modified to look for control points from each corner, rather than looping around. Added a method, PointsColinear() to check whether the points added are almost along the same line. Moved the code from Load() that chose new points to a new method, MovePoints().

2010-06-10 Jeannie Walldren - Modified PointsColinear() method to take in user defined tolerance as parameter to allow registration of more narrow search chip areas. Updated documentation, error messages, unitTest.

2010-06-15 Jeannie Walldren - Added set and accessor methods for Read() method's Interpolator::interpType. Updated documentation and unitTest.

2010-09-16 Jeannie Walldren - Updated unitTest, truth file and test cube to run properly with ShapeModel changes to Sensor class.

2011-03-29 Jai Rideout - Added copy constructor and equals operator.

2011-10-02 Kris Becker - Corrected a bug in the Extract(Chip, Affine) method when computing output pixels coordinates.

2015-07-06 David Miller - Modified code to better reflect current Coding Standards. Updated truth data. Fixes #2273

2017-08-30 Summer Stapleton - Updated documentation. References #4807.

Definition at line 86 of file Chip.h.

Constructor & Destructor Documentation

◆ Chip() [1/3]

Isis::Chip::Chip ( )

Constructs a Chip.

The default size is 3x3.

Definition at line 35 of file Chip.cpp.

References Init().

◆ Chip() [2/3]

Isis::Chip::Chip ( const Chip & other )

Constructs a copy of the passed in chip.

Parameters

other the chip to be copied

Definition at line 44 of file Chip.cpp.

References m_affine, m_buf, m_chipLine, m_chipLines, m_chipSample, m_chipSamples, m_clipPolygon, m_cubeLine, m_cubeSample, m_cubeTackLine, m_cubeTackSample, m_filename, m_readInterpolator, m_tackLine, m_tackSample, m_validMaximum, m_validMinimum, and Isis::PolygonTools::MakeMultiPolygon().

◆ Chip() [3/3]

Isis::Chip::Chip	(	const int	samples,
		const int	lines )

Construct a Chip with specified dimensions.

Parameters

samples	number of samples in the chip
lines	number of lines in the chip

Definition at line 82 of file Chip.cpp.

References Init().

◆ ~Chip()

Isis::Chip::~Chip ( )

virtual

Destroys the Chip object.

Definition at line 88 of file Chip.cpp.

References m_clipPolygon.

Member Function Documentation

◆ ChipLine()

double Isis::Chip::ChipLine ( ) const

inline

Returns: The chip line after invoking SetCubePosition

Definition at line 226 of file Chip.h.

References m_chipLine.

Referenced by Isis::ChipViewport::cubeToViewport(), and Isis::Gruen::getChipUpdate().

◆ ChipSample()

double Isis::Chip::ChipSample ( ) const

inline

Returns: The chip sample after invoking SetCubePosition

Definition at line 219 of file Chip.h.

References m_chipSample.

Referenced by Isis::ChipViewport::cubeToViewport(), and Isis::Gruen::getChipUpdate().

◆ CubeLine()

double Isis::Chip::CubeLine ( ) const

inline

Returns: The cube line after invoking SetChipPosition

Definition at line 210 of file Chip.h.

References m_cubeLine.

Referenced by Isis::Gruen::getChipUpdate(), Isis::InterestOperator::InterestByMeasure(), Isis::ChipViewport::keyPressEvent(), Isis::ChipViewport::mousePressEvent(), Isis::InterestOperator::Operate(), Isis::ChipViewport::panDown(), Isis::ChipViewport::panLeft(), Isis::ChipViewport::panRight(), Isis::ChipViewport::panUp(), Read(), and Isis::ChipViewport::tackLine().

◆ CubeSample()

double Isis::Chip::CubeSample ( ) const

inline

Returns: The cube sample after invoking SetChipPosition

Definition at line 203 of file Chip.h.

References m_cubeSample.

Referenced by Isis::Gruen::getChipUpdate(), Isis::InterestOperator::InterestByMeasure(), Isis::ChipViewport::keyPressEvent(), Isis::ChipViewport::mousePressEvent(), Isis::InterestOperator::Operate(), Isis::ChipViewport::panDown(), Isis::ChipViewport::panLeft(), Isis::ChipViewport::panRight(), Isis::ChipViewport::panUp(), Read(), and Isis::ChipViewport::tackSample().

◆ Extract() [1/3]

void Isis::Chip::Extract	(	Chip &	chipped,
		Affine &	affine )

Extract a subchip of this chip using an Affine transform.

This method will translate the data in this chip using an Affine transform to the output chip as provided. Note that the Affine transformation is only applied within the confines of this chip. No file I/O is performed.

A proper Affine transform should not deviate too much from the identity as the mapping operation may result in a NULL filled chip. The operation of this affine is added to the existing affine so proper relationship to the input cube (and any affine operations applied at load time) is preserved. This implies that the resulting affine should yield nearly identical results when read directly from the cube.

Bilinear interpolation is applied to surrounding transformed pixels to provide each new output pixel.

The chipped parameter will be updated to fully reflect the state of this original chip. The state of the chipped parameter dictates the size and the tack sample and line coordinates. Upon return, the corresponding cube sample and line coordinate is updated to the tack sample and line chip coordinate.

As such, note that an identity affine transform will yield identical results to the Chip::Extract method specifying the tack sample and line as the location to extract.

The following example demonstrates how to linearly shift a chip one pixel right and one down.

Chip mychip(35,35);
Cube cube("mycube.cub");
mychip.TackCube(200.0,200.0);
mychip.Load(cube);
 
Affine shift;
shift.Translate(-1.0,-1.0);
 
Chip ochip(15,15);
mychip.Extract(ochip, shift);

Parameters

chipped	Input/output chip containing the transformed subchip
affine	Affine transform to apply to extract subchip

Definition at line 846 of file Chip.cpp.

References Isis::Affine::Forward(), GetValue(), Lines(), m_affine, m_cubeTackLine, m_cubeTackSample, m_filename, m_validMaximum, m_validMinimum, Isis::Null, Samples(), TackLine(), and TackSample().

◆ Extract() [2/3]

void Isis::Chip::Extract	(	int	samp,
		int	line,
		Chip &	chipped )

Extract a subchip centered at the designated coordinate.

This method extracts a subchip that is centered at the given sample and line coordinate. All appropriate variables in the given chipped parameter are set appropriately prior to return.

Parameters

samp	Center (tack) sample chip coordinate to extract subchip
line	Center (tack) line chip coordinate to extract subchip
chipped	Chip to load the subchip in and return to caller

Definition at line 772 of file Chip.cpp.

References GetValue(), Lines(), m_affine, m_validMaximum, m_validMinimum, Isis::Null, Samples(), TackLine(), and TackSample().

◆ Extract() [3/3]

Chip Isis::Chip::Extract	(	int	samples,
		int	lines,
		int	samp,
		int	line )

Extract a sub-chip from a chip.

Parameters

samples	Number of samples in the extracted chip (must be less than or equal to "this" chip)
lines	Number of lines in the extracted chip (must be less than or equal to "this" chip)
samp	Input chip sample to be placed at output chip tack
line	Input chip line to be placed at output chip tack

Returns: Chip Sub-chip extracted from the chip

Exceptions

Isis::IException::Programmer - Chip extraction invalid

History: 2010-06-10 Jeannie Walldren - Modified error message

Definition at line 727 of file Chip.cpp.

References GetValue(), Lines(), m_affine, m_validMaximum, m_validMinimum, Isis::Null, Isis::IException::Programmer, Samples(), TackLine(), TackSample(), and Isis::toString().

Referenced by Isis::AutoReg::ApplyGradientFilter(), Isis::InterestOperator::InterestByMeasure(), and Isis::InterestOperator::Operate().

◆ FileName()

QString Isis::Chip::FileName ( ) const

inline

Returns: The expanded filename of the cube from which this chip was chipped.

Definition at line 113 of file Chip.h.

References m_filename.

◆ GetReadInterpolator()

Interpolator::interpType Isis::Chip::GetReadInterpolator ( )

inline

Access method that returns the Interpolator Type used for loading a chip.

Returns: const Interpolator::interpType Interpolator used to read data from cube and put it into a chip.

See also: Read(); SetReadInterpolator()

Author: Jeannie Walldren

History: 2010-06-05 Jeannie Walldren - Original version

Definition at line 309 of file Chip.h.

References m_readInterpolator.

◆ GetTransform()

const Affine & Isis::Chip::GetTransform ( ) const

inline

Returns the Affine transformation of chip-to-cube indices.

This method returns the affine transform used to load a chip from the same area as a match cube. It also is used to track the tack point line and sample translations from the chip indices to the absolute cube coordiates.

Returns: const Affine& Transform map from chip coordinates to cube coordinates

Definition at line 275 of file Chip.h.

References m_affine.

◆ GetValue() [1/2]

double Isis::Chip::GetValue	(	int	sample,
		int	line )

inline

Loads a Chip with a value.

For example,

Chip c(10,5);
c(1,1) = 1.1;
c(10,5) = 1.2;

Parameters

sample	Sample position to load (1-based)
line	Line position to load (1-based)

Returns: (double) The value of the chip at the specified line/sample

Definition at line 145 of file Chip.h.

References m_buf.

Referenced by Isis::AutoReg::ComputeChipZScore(), Isis::ChipViewport::computeStretch(), Extract(), Extract(), Extract(), Isis::ForstnerOperator::Interest(), Isis::GradientOperator::Interest(), Isis::MoravecOperator::Interest(), Isis::StandardDeviationOperator::Interest(), IsValid(), Isis::ChipViewport::paintImage(), Isis::AutoReg::Reduce(), Isis::CentroidApolloPan::selectAdaptive(), and Write().

◆ GetValue() [2/2]

double Isis::Chip::GetValue	(	int	sample,
		int	line ) const

inline

Get a value from a Chip.

For example,

Chip c(10,5);

cout << c[3,3] << endl;

Parameters

sample	Sample position to get (1-based)
line	Line position to get (1-based)

Returns: (double) The value of the chip at the specified line/sample

Definition at line 163 of file Chip.h.

References m_buf.

◆ Init()

void Isis::Chip::Init	(	const int	samples,
		const int	lines )

private

Common initialization used by constructors.

Parameters

samples	number of samples in the chip
lines	number of lines in the chip

History: 2010-06-15 Jeannie Walldren - Added call to set Read() method's interpolator default to Cubic Convolution type

Definition at line 116 of file Chip.cpp.

References m_clipPolygon, SetReadInterpolator(), SetSize(), and SetValidRange().

Referenced by Chip(), and Chip().

◆ IsInsideChip()

bool Isis::Chip::IsInsideChip	(	double	sample,
		double	line )

Parameters

sample
line

Returns: bool True if the given sample, line is inside the chip

Definition at line 162 of file Chip.cpp.

References m_chipLines, m_chipSamples, m_cubeTackLine, and m_cubeTackSample.

Referenced by Isis::ChipViewport::cubeToViewport().

◆ IsValid() [1/2]

bool Isis::Chip::IsValid ( double percentage )

Return if total number of valid pixels in chip meets a specified percentage of the entire chip.

Parameters

percentage The percentage that the valid pixels percentage must exceed

Returns: bool Returns true if the percentage of valid pixels is greater than the specified percentage, and false if it is not

Definition at line 701 of file Chip.cpp.

References IsValid(), Lines(), and Samples().

◆ IsValid() [2/2]

bool Isis::Chip::IsValid	(	int	sample,
		int	line )

inline

Parameters

sample	Sample position
line	Line position

Returns: (bool) Whether the value at the given sample, line position is within the valid range

Definition at line 240 of file Chip.h.

References GetValue(), m_validMaximum, and m_validMinimum.

Referenced by IsValid().

◆ Lines()

int Isis::Chip::Lines ( ) const

inline

Returns: The number of lines in the chip

Definition at line 106 of file Chip.h.

References m_chipLines.

Referenced by Isis::AutoReg::ApplyGradientFilter(), Isis::ChipViewport::chipLines(), Isis::AutoReg::ComputeChipZScore(), Isis::ChipViewport::computeStretch(), Extract(), Extract(), Extract(), Isis::AutoReg::Init(), Isis::ForstnerOperator::Interest(), Isis::GradientOperator::Interest(), Isis::MoravecOperator::Interest(), Isis::StandardDeviationOperator::Interest(), IsValid(), Load(), Isis::ChipViewport::paintImage(), Read(), Isis::AutoReg::Reduce(), Isis::AutoReg::Register(), Isis::CentroidApolloPan::selectAdaptive(), Isis::ChipViewport::setChip(), and Write().

◆ Load() [1/3]

void Isis::Chip::Load	(	Cube &	cube,
		Chip &	match,
		Cube &	matchChipCube,
		const double	scale = 1.0,
		const int	band = 1 )

Loads cube data into the Chip.

The data will be loaded such that the position set using TackCube method will be put at the center of the chip. The data will be loaded to sub-pixel accuracy using the interpolator indicated using SetReadInterpolator() method. Additionally, the data will be loaded such that it matches the camera and/or projective geometry of a given Chip.

Parameters

cube	The cube used to put data into the chip
match	Match the geometry of this chip
matchChipCube	The cube used to put data into the match chip
scale	scale factor (default of 1)
band	Band number to use when loading (default of 1)

Exceptions

Isis::iException::Programmer	- Chip cube is not a camera or map projection
Isis::iException::Programmer	- Match chip cube is not a camera or map projection
Isis::iException::Programmer	- Cannot find enough points to perform Affine transformation.

See also: Read(); SetReadInterpolator(); GetReadInterpolator()

History

2010-01-28 Tracie Sucharski - When calculating control points away from corners, added a linc to move into the center of the chip in a non-linear fashion to prevent control points that fall in a line and cause the matrix inversion to fail.

2010-05-24 Jeannie Walldren - Modified code when looking for control points for affine to start at each corner and move inward rather than looping around the corners. This lessens the likelyhood that the points will be too linear for the transform to work properly. A check was also added to ensure that we do not choose colinear points.

2010-06-10 Jeannie Walldren - Modified error message and added tolerance to linearity check. Fixed error messages.

Definition at line 300 of file Chip.cpp.

References Isis::Cube::camera(), Isis::Affine::Compute(), Isis::Cube::fileName(), Lines(), m_affine, m_cubeTackLine, m_cubeTackSample, m_filename, MovePoints(), PointsColinear(), Isis::Cube::projection(), Read(), Samples(), Isis::Affine::Scale(), Isis::Affine::Solve(), TackLine(), TackSample(), Isis::Affine::Translate(), Isis::IException::User, Isis::Affine::xp(), and Isis::Affine::yp().

◆ Load() [2/3]

void Isis::Chip::Load	(	Cube &	cube,
		const Affine &	affine,
		const bool &	keepPoly = true,
		const int	band = 1 )

Load a chip using an Affine transform as provided by caller.

This method will load data from a cube using an established Affine transform as provided by the caller. It is up to the caller to set up the affine appropriately.

For example, the first thing this method will do is set the chip tack point to the transformed cube location by replacing the existing affine transform with the one passed in and then calling SetChipPosition providing the chip tack point as the argument. This establishes which cube pixel is located at the chip tack point.

The data will be loaded to sub-pixel accuracy using the interpolator indicated using SetReadInterpolator() method.

Parameters

cube	Cube to load the data from
affine	Affine transform to set for chip load/operations
keepPoly	Indicates whether clipping polygon should be kept or removed (default of true)
band	Band number to read data from (default of 1)

See also: Read(); SetReadInterpolator(); GetReadInterpolator()

Definition at line 244 of file Chip.cpp.

References Isis::Cube::fileName(), m_clipPolygon, m_filename, Read(), SetChipPosition(), SetTransform(), TackLine(), and TackSample().

◆ Load() [3/3]

void Isis::Chip::Load	(	Cube &	cube,
		const double	rotation = 0.0,
		const double	scale = 1.0,
		const int	band = 1 )

Load cube data into the Chip.

The data will be loaded such that the position set using TackCube method will be put at the center of the chip. The data will be loaded to sub-pixel accuracy using the interpolator indicated using SetReadInterpolator() method.

Parameters

cube	The cube used to put data into the chip
rotation	rotation in degrees of data about the cube tack point (default of 0)
scale	scale factor (default of 1)
band	Band number to use when loading (default of 1)

See also: Read(); SetReadInterpolator(); GetReadInterpolator()

Definition at line 203 of file Chip.cpp.

References Isis::Cube::fileName(), Isis::Affine::Identity(), m_affine, m_cubeTackLine, m_cubeTackSample, m_filename, Read(), Isis::Affine::Rotate(), Isis::Affine::Scale(), and Isis::Affine::Translate().

Referenced by Isis::ChipViewport::geomChip(), Isis::InterestOperator::InterestByMeasure(), Isis::ChipViewport::nogeomChip(), Isis::InterestOperator::Operate(), Isis::ControlMeasureEditWidget::registerPoint(), Isis::ControlPointEdit::registerPoint(), Isis::ChipViewport::reloadChip(), Isis::ChipViewport::rotateChip(), Isis::ControlMeasureEditWidget::setLeftMeasure(), Isis::ControlPointEdit::setLeftMeasure(), Isis::ControlMeasureEditWidget::setRightMeasure(), and Isis::ControlPointEdit::setRightMeasure().

◆ MovePoints()

vector< int > Isis::Chip::MovePoints	(	int	startSamp,
		int	startLine,
		int	endSamp,
		int	endLine )

private

This method is called by Load() to move a control point across the chip.

Parameters

*startSamp	Sample value to be increased, or moved right.
*startLine	Line value to be increased, or moved downward.
*endSamp	Sample value to be decreased, or moved left.
*endLine	Line value to be decreased, or moved upward.

Returns: vector < int > Vector containing the new sample and line values in the same order as the parameters passed into the method.

Author: Tracie Sucharski

History: 2010-05-24 Jeannie Walldren - Moved from Load() method to its own method since this code needed to be repeated several times.

Definition at line 615 of file Chip.cpp.

Referenced by Load().

◆ operator=()

Chip & Isis::Chip::operator= ( const Chip & other )

Copy assignment operator.

Parameters

other chip to be copied to this

Returns: The chip that was copied from the other

Definition at line 1021 of file Chip.cpp.

References m_affine, m_buf, m_chipLine, m_chipLines, m_chipSample, m_chipSamples, m_clipPolygon, m_cubeLine, m_cubeSample, m_cubeTackLine, m_cubeTackSample, m_filename, m_readInterpolator, m_tackLine, m_tackSample, m_validMaximum, m_validMinimum, and Isis::PolygonTools::MakeMultiPolygon().

◆ PointsColinear()

bool Isis::Chip::PointsColinear	(	double	x0,
		double	y0,
		double	x1,
		double	y1,
		double	x2,
		double	y2,
		double	tol )

private

This method is called by Load() to determine whether the given 3 points are nearly colinear.

This is done by considering the triangle composed of these points. The method returns true if all angles of the triangle are greater than the tolerance angle and less than 180 degrees, minus the tolerance angle.

Parameters

x0	The x-value of the first point
y0	The y-value of the first point
x1	The x-value of the second point
y1	The y-value of the second point
x2	The x-value of the third point
y2	The y-value of the third point
tol	Minimum tolerance angle in degrees

Returns: bool True if 3 given points are nearly colinear

Author: Jeannie Walldren

History

2010-05-24 Jeannie Walldren - Original version.

2010-06-10 Jeannie Walldren - Modified to take in user defined tolerance as parameter to allow registration of narrow search chip areas

Definition at line 546 of file Chip.cpp.

References Isis::PI.

Referenced by Load().

◆ Read()

void Isis::Chip::Read	(	Cube &	cube,
		const int	band )

private

This method reads data from a cube and puts it into the chip.

The affine transform is used in the SetChipPosition routine, so the geom of the chip is automatic. This method uses a default interpolator type of Cubic Convolution. This can be changed using SetReadInterpolator().

Parameters

cube	Cube to read data from
band	Band number to read data from

See also: SetReadInterpolator

Todo: We could modify the affine class to return the coefficients and then compute the derivative of the change in cube sample and line with respect to chip sample or line. The change might make the geom run a bit faster.

See also: SetReadInterpolator(); GetReadInterpolator()

History: 2010-06-15 Jeannie Walldren - Modified to allow any interpolator type except "None"

Definition at line 939 of file Chip.cpp.

References CubeLine(), CubeSample(), Isis::Cube::lineCount(), Lines(), m_buf, m_clipPolygon, m_readInterpolator, Isis::Cube::pixelType(), Isis::Cube::read(), Isis::Cube::sampleCount(), Samples(), and SetChipPosition().

Referenced by Load(), Load(), and Load().

◆ Samples()

int Isis::Chip::Samples ( ) const

inline

Returns: The number of samples in the chip

Definition at line 99 of file Chip.h.

References m_chipSamples.

Referenced by Isis::AutoReg::ApplyGradientFilter(), Isis::ChipViewport::chipSamples(), Isis::AutoReg::ComputeChipZScore(), Isis::ChipViewport::computeStretch(), Extract(), Extract(), Extract(), Isis::AutoReg::Init(), Isis::ForstnerOperator::Interest(), Isis::GradientOperator::Interest(), Isis::MoravecOperator::Interest(), Isis::StandardDeviationOperator::Interest(), IsValid(), Load(), Isis::ChipViewport::paintImage(), Read(), Isis::AutoReg::Reduce(), Isis::AutoReg::Register(), Isis::CentroidApolloPan::selectAdaptive(), Isis::ChipViewport::setChip(), and Write().

◆ SetAllValues()

void Isis::Chip::SetAllValues ( const double & d )

Single value assignment operator.

Sets the entire chip to a constant

Parameters

d	Value to set the chip to

Definition at line 100 of file Chip.cpp.

References m_buf.

◆ SetChipPosition()

void Isis::Chip::SetChipPosition	(	const double	sample,
		const double	line )

Compute the position of the cube given a chip coordinate.

Any rotation or geometric matching done during the Load process will be taken into account. Use CubeSample and CubeLine methods to obtain results. Note the results could be outside of the cube

Parameters

sample	chip sample coordinate
line	chip line coordinate

Definition at line 643 of file Chip.cpp.

References Isis::Affine::Compute(), m_affine, m_chipLine, m_chipSample, m_cubeLine, m_cubeSample, TackLine(), TackSample(), Isis::Affine::xp(), and Isis::Affine::yp().

Referenced by Isis::Gruen::getChipUpdate(), Isis::InterestOperator::InterestByMeasure(), Isis::ChipViewport::keyPressEvent(), Load(), Isis::ChipViewport::mousePressEvent(), Isis::InterestOperator::Operate(), Isis::ChipViewport::panDown(), Isis::ChipViewport::panLeft(), Isis::ChipViewport::panRight(), Isis::ChipViewport::panUp(), Read(), Isis::AutoReg::Register(), Isis::ChipViewport::tackLine(), and Isis::ChipViewport::tackSample().

◆ SetClipPolygon()

void Isis::Chip::SetClipPolygon ( const geos::geom::MultiPolygon & clipPolygon )

Sets the clipping polygon for this chip.

The coordinates must be in (sample,line) order. All Pixel values outside this polygon will be set to Null8. The cubic convolution interpolation is allowed to uses valid pixels outside the clipping area.

Parameters

clipPolygon The polygons used to clip the chip

Definition at line 1008 of file Chip.cpp.

References Isis::PolygonTools::CopyMultiPolygon(), and m_clipPolygon.

Referenced by Isis::InterestOperator::InterestByMeasure(), and Isis::InterestOperator::Operate().

◆ SetCubePosition()

void Isis::Chip::SetCubePosition	(	const double	sample,
		const double	line )

Compute the position of the chip given a cube coordinate.

Any rotation or geometric matching done during the Load process will be taken into account. Use ChipSample and ChipLine methods to obtain results. Note that the results could be outside of the chip.

Parameters

sample	chip sample coordinate
line	chip line coordinate

Definition at line 660 of file Chip.cpp.

References Isis::Affine::ComputeInverse(), m_affine, m_chipLine, m_chipSample, m_cubeLine, m_cubeSample, TackLine(), TackSample(), Isis::Affine::x(), and Isis::Affine::y().

Referenced by Isis::ChipViewport::cubeToViewport().

◆ SetReadInterpolator()

void Isis::Chip::SetReadInterpolator ( const Interpolator::interpType type )

inline

Sets Interpolator Type for loading a chip.

This type is used in the Read() method.

Parameters

type	Interpolator type to be used.

Exceptions

IException::Programmer - Invalid Interpolator Type

See also: Read(); SetReadInterpolator()

Author: Jeannie Walldren

History: 2010-06-05 Jeannie Walldren - Original version

Definition at line 323 of file Chip.h.

References m_readInterpolator, Isis::IException::Programmer, and Isis::toString().

Referenced by Init(), and Isis::AutoReg::SetChipInterpolator().

◆ SetSize()

void Isis::Chip::SetSize	(	const int	samples,
		const int	lines )

Change the size of the Chip.

Parameters

samples	number of samples in the chip
lines	number of lines in the chip

Exceptions

Isis::iException::User - Samples and lines must be greater than zero.

History: 2010-06-10 Jeannie Walldren - Modified error message

Definition at line 134 of file Chip.cpp.

References Isis::Affine::Identity(), m_affine, m_buf, m_chipLines, m_chipSamples, m_tackLine, m_tackSample, Isis::toString(), and Isis::IException::User.

Referenced by Isis::AutoReg::AutoReg(), Init(), Isis::AutoReg::Parse(), and Isis::AutoReg::Register().

◆ SetTransform()

void Isis::Chip::SetTransform	(	const Affine &	affine,
		const bool &	keepPoly = true )

inline

Sets the internal Affine transform to new translation.

Provides the ability to establish a new affine transformation without overhead of, say, loading the chip with a new translation. The caller also has the option to specify the disposition of an established polygon.

Parameters

affine	New affine tranform to set for this chip
keepPoly	Indicates whether an existing polygon clipper should be kept (default of true)

Definition at line 290 of file Chip.h.

References m_affine, and m_clipPolygon.

Referenced by Load().

◆ SetValidRange()

void Isis::Chip::SetValidRange	(	const double	minimum = Isis::ValidMinimum,
		const double	maximum = Isis::ValidMaximum )

Set the valid range of data in the chip.

If never called all data in the chip is consider valid (other than special pixels).

Parameters

minimum	minimum valid pixel value (default of Isis::ValidMinimum)
maximum	maximum valid pixel value (default of Isis::ValidMaximum)

Exceptions

Isis::iException::Programmer - First parameter must be smaller than the second.

History: 2010-06-10 Jeannie Walldren - Modified error message

Definition at line 681 of file Chip.cpp.

References m_validMaximum, m_validMinimum, Isis::IException::Programmer, and Isis::toString().

Referenced by Init(), and Isis::AutoReg::Parse().

◆ SetValue()

void Isis::Chip::SetValue	(	int	sample,
		int	line,
		const double &	value )

inline

Sets a value in the chip.

Parameters

sample	Sample position to load (1-based)
line	Line position to load (1-based)
value	Value to set

Definition at line 126 of file Chip.h.

References m_buf.

Referenced by Isis::AutoReg::ApplyGradientFilter(), Isis::AutoReg::Init(), Isis::AutoReg::Reduce(), and Isis::AutoReg::Register().

◆ Statistics()

Isis::Statistics * Isis::Chip::Statistics ( )

Returns a statistics object of the current data in the chip.

The caller takes ownership of the returned instance.

Returns: Isis::Statistics* Statistics of the data in the chip

Definition at line 909 of file Chip.cpp.

References m_buf, m_chipLines, m_chipSamples, m_validMaximum, and m_validMinimum.

◆ TackCube()

void Isis::Chip::TackCube	(	const double	cubeSample,
		const double	cubeLine )

This sets which cube position will be located at the chip tack position.

Parameters

cubeSample	the cube sample value to tack
cubeLine	the cube line value to tack

Definition at line 182 of file Chip.cpp.

References Isis::Affine::Identity(), m_affine, m_cubeTackLine, m_cubeTackSample, and Isis::Affine::Translate().

Referenced by Isis::Gruen::getChipUpdate(), Isis::InterestOperator::InterestByMeasure(), Isis::InterestOperator::Operate(), Isis::ControlMeasureEditWidget::registerPoint(), Isis::ControlPointEdit::registerPoint(), Isis::ChipViewport::reloadChip(), Isis::ControlMeasureEditWidget::setLeftMeasure(), Isis::ControlPointEdit::setLeftMeasure(), Isis::ControlMeasureEditWidget::setLeftPosition(), Isis::ControlMeasureEditWidget::setRightMeasure(), Isis::ControlPointEdit::setRightMeasure(), and Isis::ControlMeasureEditWidget::setRightPosition().

◆ TackLine()

int Isis::Chip::TackLine ( ) const

inline

This method returns a chip's fixed tack line; the middle of the chip.

It is a chip coordinate, not a cube coordinate. For example, a chip with 5 lines will return 3, the middle pixel. A chip with 4 lines will return 2.

Returns: The fixed tack line of the chip.

Definition at line 187 of file Chip.h.

References m_tackLine.

Referenced by Extract(), Extract(), Extract(), Isis::Gruen::getChipUpdate(), Isis::ChipViewport::keyPressEvent(), Load(), Load(), Isis::ChipViewport::panDown(), Isis::ChipViewport::panLeft(), Isis::ChipViewport::panRight(), Isis::ChipViewport::panUp(), SetChipPosition(), SetCubePosition(), Isis::ChipViewport::tackLine(), and Isis::ChipViewport::tackSample().

◆ TackSample()

int Isis::Chip::TackSample ( ) const

inline

This method returns a chip's fixed tack sample; the middle of the chip.

It is a chip coordinate, not a cube coordinate. For example, a chip with 5 samples will return 3, the middle pixel. A chip with 4 samples will return 2.

Returns: The fixed tack sample of the chip.

Definition at line 176 of file Chip.h.

References m_tackSample.

Referenced by Extract(), Extract(), Extract(), Isis::Gruen::getChipUpdate(), Isis::ChipViewport::keyPressEvent(), Load(), Load(), Isis::ChipViewport::panDown(), Isis::ChipViewport::panLeft(), Isis::ChipViewport::panRight(), Isis::ChipViewport::panUp(), SetChipPosition(), SetCubePosition(), Isis::ChipViewport::tackLine(), and Isis::ChipViewport::tackSample().

◆ Write()

void Isis::Chip::Write ( const QString & filename )

Writes the contents of the Chip to a cube.

Parameters

filename Name of the cube to create

Definition at line 985 of file Chip.cpp.

References GetValue(), Lines(), Samples(), Isis::Cube::setDimensions(), and Isis::LineManager::SetLine().

Referenced by Isis::ControlMeasureEditWidget::saveChips(), and Isis::ControlPointEdit::saveChips().

Member Data Documentation

◆ m_affine

Affine Isis::Chip::m_affine

private

Transform set by SetTransform.

Definition at line 366 of file Chip.h.

Referenced by Chip(), Extract(), Extract(), Extract(), GetTransform(), Load(), Load(), operator=(), SetChipPosition(), SetCubePosition(), SetSize(), SetTransform(), and TackCube().

◆ m_buf

std::vector< std::vector<double> > Isis::Chip::m_buf

private

Chip buffer.

Definition at line 348 of file Chip.h.

Referenced by Chip(), GetValue(), GetValue(), operator=(), Read(), SetAllValues(), SetSize(), SetValue(), and Statistics().

◆ m_chipLine

double Isis::Chip::m_chipLine

private

chip line set by SetChip/CubePosition

Definition at line 359 of file Chip.h.

Referenced by Chip(), ChipLine(), operator=(), SetChipPosition(), and SetCubePosition().

◆ m_chipLines

int Isis::Chip::m_chipLines

private

Number of lines in the chip.

Definition at line 347 of file Chip.h.

Referenced by Chip(), IsInsideChip(), Lines(), operator=(), SetSize(), and Statistics().

◆ m_chipSample

double Isis::Chip::m_chipSample

private

chip sample set by SetChip/CubePosition

Definition at line 358 of file Chip.h.

Referenced by Chip(), ChipSample(), operator=(), SetChipPosition(), and SetCubePosition().

◆ m_chipSamples

int Isis::Chip::m_chipSamples

private

Number of samples in the chip.

Definition at line 346 of file Chip.h.

Referenced by Chip(), IsInsideChip(), operator=(), Samples(), SetSize(), and Statistics().

◆ m_clipPolygon

geos::geom::MultiPolygon* Isis::Chip::m_clipPolygon

private

clipping polygon set by SetClipPolygon

Definition at line 363 of file Chip.h.

Referenced by Chip(), Init(), Load(), operator=(), Read(), SetClipPolygon(), SetTransform(), and ~Chip().

◆ m_cubeLine

double Isis::Chip::m_cubeLine

private

cube line set by SetCubePosition

Definition at line 361 of file Chip.h.

Referenced by Chip(), CubeLine(), operator=(), SetChipPosition(), and SetCubePosition().

◆ m_cubeSample

double Isis::Chip::m_cubeSample

private

cube sample set by SetCubePosition

Definition at line 360 of file Chip.h.

Referenced by Chip(), CubeSample(), operator=(), SetChipPosition(), and SetCubePosition().

◆ m_cubeTackLine

double Isis::Chip::m_cubeTackLine

private

cube line at the chip tack

Definition at line 353 of file Chip.h.

Referenced by Chip(), Extract(), IsInsideChip(), Load(), Load(), operator=(), and TackCube().

◆ m_cubeTackSample

double Isis::Chip::m_cubeTackSample

private

cube sample at the chip tack

Definition at line 352 of file Chip.h.

Referenced by Chip(), Extract(), IsInsideChip(), Load(), Load(), operator=(), and TackCube().

◆ m_filename

QString Isis::Chip::m_filename

private

FileName of loaded cube.

Definition at line 373 of file Chip.h.

Referenced by Chip(), Extract(), FileName(), Load(), Load(), Load(), and operator=().

◆ m_readInterpolator

Interpolator::interpType Isis::Chip::m_readInterpolator

private

Interpolator type set by.

Definition at line 369 of file Chip.h.

Referenced by Chip(), GetReadInterpolator(), operator=(), Read(), and SetReadInterpolator().

◆ m_tackLine

int Isis::Chip::m_tackLine

private

Middle line of the chip.

Definition at line 350 of file Chip.h.

Referenced by Chip(), operator=(), SetSize(), and TackLine().

◆ m_tackSample

int Isis::Chip::m_tackSample

private

Middle sample of the chip.

Definition at line 349 of file Chip.h.

Referenced by Chip(), operator=(), SetSize(), and TackSample().

◆ m_validMaximum

double Isis::Chip::m_validMaximum

private

valid maximum chip pixel value

Definition at line 356 of file Chip.h.

Referenced by Chip(), Extract(), Extract(), Extract(), IsValid(), operator=(), SetValidRange(), and Statistics().

◆ m_validMinimum

double Isis::Chip::m_validMinimum

private

valid minimum chip pixel value

Definition at line 355 of file Chip.h.

Referenced by Chip(), Extract(), Extract(), Extract(), IsValid(), operator=(), SetValidRange(), and Statistics().

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

src/base/objs/Chip/Chip.h
src/base/objs/Chip/Chip.cpp

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Chip() [1/3]

◆ Chip() [2/3]

◆ Chip() [3/3]

◆ ~Chip()

Member Function Documentation

◆ ChipLine()

◆ ChipSample()

◆ CubeLine()

◆ CubeSample()

◆ Extract() [1/3]

◆ Extract() [2/3]

◆ Extract() [3/3]

◆ FileName()

◆ GetReadInterpolator()

◆ GetTransform()

◆ GetValue() [1/2]

◆ GetValue() [2/2]

◆ Init()

◆ IsInsideChip()

◆ IsValid() [1/2]

◆ IsValid() [2/2]

◆ Lines()

◆ Load() [1/3]

◆ Load() [2/3]

◆ Load() [3/3]

◆ MovePoints()

◆ operator=()

◆ PointsColinear()

◆ Read()

◆ Samples()

◆ SetAllValues()

◆ SetChipPosition()

◆ SetClipPolygon()

◆ SetCubePosition()

◆ SetReadInterpolator()

◆ SetSize()

◆ SetTransform()

◆ SetValidRange()

◆ SetValue()

◆ Statistics()

◆ TackCube()

◆ TackLine()

◆ TackSample()

◆ Write()

Member Data Documentation

◆ m_affine

◆ m_buf

◆ m_chipLine

◆ m_chipLines

◆ m_chipSample

◆ m_chipSamples

◆ m_clipPolygon

◆ m_cubeLine

◆ m_cubeSample

◆ m_cubeTackLine

◆ m_cubeTackSample

◆ m_filename

◆ m_readInterpolator

◆ m_tackLine

◆ m_tackSample

◆ m_validMaximum

◆ m_validMinimum