Calculates a series of statistics pertaining to a Camera. More...

#include <CameraStatistics.h>

Collaboration diagram for Isis::CameraStatistics:

Public Member Functions
	CameraStatistics (QString filename, int sinc, int linc)
	Constructs the Camera Statistics object from a Cube filename.

	CameraStatistics (Camera *cam, int sinc, int linc)
	Constructs the Camera Statistics object from an already-existent Camera pointer.

	CameraStatistics (Camera *cam, int sinc, int linc, QString filename)
	Constructs the Camera Statistics object from an already-existent Camera pointer.

virtual	~CameraStatistics ()
	Destroy this instance, deletes all the Statistics objects.

void	addStats (Camera *cam, int &sample, int &line)
	Add statistics data to Statistics objects if the Camera position given by the provided line and sample is looking at the surface of the target.

PvlKeyword	constructKeyword (QString keyname, double value, QString unit) const
	Takes a name, value, and optionally units and constructs a PVL Keyword.

Pvl	toPvl () const
	Constructs a Pvl object from the values in the various statistics objects.

const Statistics *	getLatStat () const
	Accessor method for inspecting the statistics gathered on the Universal Latitudes of the input Camera.

const Statistics *	getLonStat () const
	Accessor method for inspecting the statistics gathered on the Universal Longitudes of the input Camera.

const Statistics *	getResStat () const
	Accessor method for inspecting the statistics gathered on the Pixel Resolutions of the input Camera.

const Statistics *	getSampleResStat () const
	Accessor method for inspecting the statistics gathered on the Sample Resolutions of the input Camera.

const Statistics *	getLineResStat () const
	Accessor method for inspecting the statistics gathered on the Line Resolution of the input Camera.

const Statistics *	getAspectRatioStat () const
	Accessor method for inspecting the statistics gathered on the Aspect Ratios of the input Camera.

const Statistics *	getPhaseStat () const
	Accessor method for inspecting the statistics gathered on the Phase Angles of the input Camera.

const Statistics *	getEmissionStat () const
	Accessor method for inspecting the statistics gathered on the Emission Angles of the input Camera.

const Statistics *	getIncidenceStat () const
	Accessor method for inspecting the statistics gathered on the Incidence Angles of the input Camera.

const Statistics *	getLocalSolarTimeStat () const
	Accessor method for inspecting the statistics gathered on the Local Solar Times of the input Camera.

const Statistics *	getLocalRaduisStat () const
	Accessor method for inspecting the statistics gathered on the Local Radii (in meters) of the input Camera.

const Statistics *	getNorthAzimuthStat () const
	Accessor method for inspecting the statistics gathered on the North Azimuths of the input Camera.

Private Member Functions
void	init (Camera *cam, int sinc, int linc, QString filename)
	FileName of the Cube the Camera was derived from.

Private Attributes
QString	m_filename

int	m_sinc
	Sample increment for composing statistics.

int	m_linc
	Line increment for composing statistics.

Statistics *	m_latStat
	Universal latitude statistics.

Statistics *	m_lonStat
	Universal longitude statistics.

Statistics *	m_resStat
	Pixel resolution statistics.

Statistics *	m_sampleResStat
	Sample resolution statistics.

Statistics *	m_lineResStat
	Line resolution statistics.

Statistics *	m_aspectRatioStat
	Aspect ratio statistics.

Statistics *	m_phaseStat
	Phase angle statistics.

Statistics *	m_emissionStat
	Emission angle statistics.

Statistics *	m_incidenceStat
	Incidence angle statistics.

Statistics *	m_localSolarTimeStat
	Local solar time statistics.

Statistics *	m_localRaduisStat
	Local radius statistics (in meters).

Statistics *	m_northAzimuthStat
	North azimuth statistics.

Detailed Description

Calculates a series of statistics pertaining to a Camera.

Given a Camera pointer–or the filename of a Cube whose Camera is to be used–this class will calculate a series of statistics at initialization on the Camera. After construction, the user can retrieve statistics, compiled for every line/sample of the Camera, for the Camera's latitude, longitude, pixel resolution, sample resolution, line resolution, phase angle, emission angle, incidence angle, local solar time, meters, north azimuth, and aspect ratio.

Author: 2011-06-14 Travis Addair

History:: 2011-06-14 Travis Addair - Extracted logic from "camstats" application to create this class.

Definition at line 55 of file CameraStatistics.h.

Constructor & Destructor Documentation

Isis::CameraStatistics::CameraStatistics	(	QString	filename,
		int	sinc,
		int	linc
	)

Constructs the Camera Statistics object from a Cube filename.

This constructor will first open the cube corresponding to the "filename" parameter, then gather statistics with the Cube's Camera. Neither the Cube nor its Camera is retained after statistics gathering has completed, but the filename used to open the Cube will be output in the "User Parameters" group of the "toPvl" method. The invoker of this constructor must also specify the sample and line increments to be used during statistics gathering.

Parameters

filename	String filename of the Cube whose Camera will be used
sinc	Sample increment for gathering statistics
linc	Line increment for gathering statistics

Definition at line 27 of file CameraStatistics.cpp.

References Isis::Cube::camera(), init(), and Isis::Cube::open().

Isis::CameraStatistics::CameraStatistics	(	Camera *	cam,
		int	sinc,
		int	linc
	)

Constructs the Camera Statistics object from an already-existent Camera pointer.

Specifying sample and line increments of 1 will gather statistics on the entire area encompassed by the Camera, but higher numbers can be used to improve performance. Using this constructor–lacking a Cube filename–the "toPvl" method will not output the Cube filename associated with the Camera. If the user desires this information, there is a constructor that will take the filename purely for this purpose.

Parameters

cam	Camera pointer upon which statistics will be gathered
sinc	Sample increment for gathering statistics
linc	Line increment for gathering statistics

Definition at line 49 of file CameraStatistics.cpp.

References init().

Isis::CameraStatistics::CameraStatistics	(	Camera *	cam,
		int	sinc,
		int	linc,
		QString	filename
	)

Constructs the Camera Statistics object from an already-existent Camera pointer.

Specifying sample and line increments of 1 will gather statistics on the entire area encompassed by the Camera, but higher numbers can be used to improve performance. The filename provided does not serve a functional purpose during the statistics gathering process, but will report the filename used to create the Camera instance in the "User Parameters" section of the PVL output from the "toPvl" method.

Parameters

cam	Camera pointer upon which statistics will be gathered
sinc	Sample increment for gathering statistics
linc	Line increment for gathering statistics
filename	String filename of the Cube whose Camera is being used

Definition at line 68 of file CameraStatistics.cpp.

References init().

Isis::CameraStatistics::~CameraStatistics ( )

virtual

Destroy this instance, deletes all the Statistics objects.

Definition at line 147 of file CameraStatistics.cpp.

References m_aspectRatioStat, m_emissionStat, m_incidenceStat, m_latStat, m_lineResStat, m_localRaduisStat, m_localSolarTimeStat, m_lonStat, m_northAzimuthStat, m_phaseStat, m_resStat, and m_sampleResStat.

Member Function Documentation

void Isis::CameraStatistics::addStats	(	Camera *	cam,
		int &	sample,
		int &	line
	)

Add statistics data to Statistics objects if the Camera position given by the provided line and sample is looking at the surface of the target.

Parameters

cam	Camera pointer upon which statistics are being gathered
sample	Sample of the image to gather Camera information on
line	Line of the image to gather Camera information on

Definition at line 207 of file CameraStatistics.cpp.

References Isis::Statistics::AddData(), Isis::Sensor::EmissionAngle(), Isis::Sensor::HasSurfaceIntersection(), Isis::Sensor::IncidenceAngle(), Isis::Camera::LineResolution(), Isis::Sensor::LocalRadius(), Isis::Sensor::LocalSolarTime(), m_aspectRatioStat, m_emissionStat, m_incidenceStat, m_latStat, m_lineResStat, m_localRaduisStat, m_localSolarTimeStat, m_lonStat, m_northAzimuthStat, m_phaseStat, m_resStat, m_sampleResStat, Isis::Distance::meters(), Isis::Camera::NorthAzimuth(), Isis::Sensor::PhaseAngle(), Isis::Camera::PixelResolution(), Isis::Camera::SampleResolution(), Isis::Camera::SetImage(), Isis::Sensor::UniversalLatitude(), and Isis::Sensor::UniversalLongitude().

Referenced by init().

PvlKeyword Isis::CameraStatistics::constructKeyword	(	QString	keyname,
		double	value,
		QString	unit = `""`
	)		const

Takes a name, value, and optionally units and constructs a PVL Keyword.

If the value is determined to be a "special pixel", then the string NULL will be used for the value.

Parameters

keyname	Name of keyword to generate
value	Value to write to keyword
unit	Optional units for keywords

Returns: PvlKeyword Keyword constructed from input parameters

Definition at line 241 of file CameraStatistics.cpp.

References Isis::IsSpecial(), and Isis::toString().

Referenced by toPvl().

const Statistics* Isis::CameraStatistics::getAspectRatioStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Aspect Ratios of the input Camera.

Returns: Statistics * Constant pointer to Aspect Ratio Statistics

Definition at line 129 of file CameraStatistics.h.

References m_aspectRatioStat.

const Statistics* Isis::CameraStatistics::getEmissionStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Emission Angles of the input Camera.

Returns: Statistics * Constant pointer to Emission Angle Statistics

Definition at line 151 of file CameraStatistics.h.

References m_emissionStat.

const Statistics* Isis::CameraStatistics::getIncidenceStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Incidence Angles of the input Camera.

Returns: Statistics * Constant pointer to Incidence Angle Statistics

Definition at line 162 of file CameraStatistics.h.

References m_incidenceStat.

const Statistics* Isis::CameraStatistics::getLatStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Universal Latitudes of the input Camera.

Returns: Statistics * Constant pointer to Latitude Statistics

Definition at line 74 of file CameraStatistics.h.

References m_latStat.

const Statistics* Isis::CameraStatistics::getLineResStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Line Resolution of the input Camera.

Returns: Statistics * Constant pointer to Line Resolution Statistics

Definition at line 118 of file CameraStatistics.h.

References m_lineResStat.

const Statistics* Isis::CameraStatistics::getLocalRaduisStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Local Radii (in meters) of the input Camera.

Returns: Statistics * Constant pointer to Local Radius Statistics

Definition at line 184 of file CameraStatistics.h.

References m_localRaduisStat.

const Statistics* Isis::CameraStatistics::getLocalSolarTimeStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Local Solar Times of the input Camera.

Returns: Statistics * Constant pointer to Local Solar Time Statistics

Definition at line 173 of file CameraStatistics.h.

References m_localSolarTimeStat.

const Statistics* Isis::CameraStatistics::getLonStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Universal Longitudes of the input Camera.

Returns: Statistics * Constant pointer to Longitude Statistics

Definition at line 85 of file CameraStatistics.h.

References m_lonStat.

const Statistics* Isis::CameraStatistics::getNorthAzimuthStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the North Azimuths of the input Camera.

Returns: Statistics * Constant pointer to North Azimuth Statistics

Definition at line 195 of file CameraStatistics.h.

References m_northAzimuthStat.

const Statistics* Isis::CameraStatistics::getPhaseStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Phase Angles of the input Camera.

Returns: Statistics * Constant pointer to Phase Angle Statistics

Definition at line 140 of file CameraStatistics.h.

References m_phaseStat.

const Statistics* Isis::CameraStatistics::getResStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Pixel Resolutions of the input Camera.

Returns: Statistics * Constant pointer to Pixel Resolution Statistics

Definition at line 96 of file CameraStatistics.h.

References m_resStat.

const Statistics* Isis::CameraStatistics::getSampleResStat ( ) const

inline

Accessor method for inspecting the statistics gathered on the Sample Resolutions of the input Camera.

Returns: Statistics * Constant pointer to Sample Resolution Statistics

Definition at line 107 of file CameraStatistics.h.

References m_sampleResStat.

void Isis::CameraStatistics::init	(	Camera *	cam,
		int	sinc,
		int	linc,
		QString	filename
	)

private

FileName of the Cube the Camera was derived from.

Initializes this collection of statistics by incrementing over sample/line positions in the Camera and compiling various Camera values at those locations into all the Statistics objects maintained as the persistent state of the object.

Statistics can be added to these objects later using the "addStats" method.

Parameters

cam	Camera pointer upon which statistics will be gathered
sinc	Sample increment for gathering statistics
linc	Line increment for gathering statistics
filename	String filename of the Cube whose Camera is being used

Definition at line 86 of file CameraStatistics.cpp.

References addStats(), Isis::Camera::Bands(), Isis::Progress::CheckStatus(), Isis::Camera::IsBandIndependent(), Isis::Camera::Lines(), m_aspectRatioStat, m_emissionStat, m_incidenceStat, m_latStat, m_linc, m_lineResStat, m_localRaduisStat, m_localSolarTimeStat, m_lonStat, m_northAzimuthStat, m_phaseStat, m_resStat, m_sampleResStat, m_sinc, Isis::Camera::Samples(), Isis::Camera::SetBand(), and Isis::Progress::SetMaximumSteps().

Referenced by CameraStatistics().

Pvl Isis::CameraStatistics::toPvl ( ) const

Constructs a Pvl object from the values in the various statistics objects.

The general format will look as follows:

Group = User Parameters
  Filename (not provided for constructor w/ Camera but not filename)
  Linc
  Sinc
End_Group
Group = Latitude
  LatitudeMinimum
  LatitudeMaximum
  LatitudeStandardDeviation
End_Group
Group = Longitude
  LongitudeMinimum
  LongitudeMaximum
  LongitudeStandardDeviation
End_Group
Group = SampleResolution
  SampleResolutionMinimum
  SampleResolutionMaximum
  SampleResolutionStandardDeviation
End_Group
Group = LineResolution
  LineResolutionMinimum
  LineResolutionMaximum
  LineResolutionStandardDeviation
End_Group
Group = Resolution
  ResolutionMinimum
  ResolutionMaximum
  ResolutionStandardDeviation
End_Group
Group = AspectRatio
  AspectRatioMinimum
  AspectRatioMaximum
  AspectRatioStandardDeviation
End_Group
Group = PhaseAngle
  PhaseMinimum
  PhaseMaximum
  PhaseStandardDeviation
End_Group
Group = EmissionAngle
  EmissionMinimum
  EmissionMaximum
  EmissionStandardDeviation
End_Group
Group = IncidenceAngle
  IncidenceMinimum
  IncidenceMaximum
  IncidenceStandardDeviation
End_Group
Group = LocalSolarTime
  LocalSolarTimeMinimum
  LocalSolarTimeMaximum
  LocalSolarTimeStandardDeviation
End_Group
Group = LocalRadius
  LocalRadiusMinimum
  LocalRadiusMaximum
  LocalRadiusStandardDeviation
End_Group
Group = NorthAzimuth
  NorthAzimuthMinimum
  NorthAzimuthMaximum
  NorthAzimuthStandardDeviation
End_Group