USGS Astrogeology Isis API

This is the core of the Isis system. Process, a very important base class is often used to derive new classes which process cubes in a systematic manner. Some of these derived classes include ProcessByLine, FilterProcess, RubberSheet, and Export. For history buffs, the Process class equates to DOCUBE in Isis 2.0 and DOIO in PICS. Essentially, this class manages much of the tedious programming work for cube i/o, user interaction, history, etc.

Definition at line 132 of file Process.h.


Public Member Functions
	Process ()
	Constructs a Process Object.
virtual	~Process ()
	Destroys the Process Object. It will close all opened cubes.
void	StartProcess (void funct())
	In the base class, this method will invoked a user-specified function exactly one time.
virtual void	EndProcess ()
	End the processing sequence and cleans up by closing cubes, freeing memory, etc.
Isis::Cube *	SetInputCube (const std::string &parameter, const int requirements=0)
	Opens an input cube specified by the user and verifies requirements are met.
Isis::Cube *	SetInputCube (const std::string &fname, const Isis::CubeAttributeInput &att, int requirements=0)
	Opens an input cube specified by the programmer and verifies requirements are met.
void	ClearInputCubes ()
	This method clears the input cube list.
Isis::Cube *	SetOutputCube (const std::string &parameter)
	Allocates a user-specified output cube whose size matches the first input cube.
Isis::Cube *	SetOutputCube (const std::string &parameter, const int nsamps, const int nlines, const int nbands=1)
	Allocates a user specified output cube whose size is specified by the programmer.
Isis::Cube *	SetOutputCube (const std::string &fname, const Isis::CubeAttributeOutput &att, const int nsamps, const int nlines, const int nbands=1)
	Allocates a output cube whose name and size is specified by the programmer.
void	PropagateLabels (const bool prop)
	This method allows the programmer to turn on/off the propagation of labels from the 1st input cube to any of the output cubes.
void	PropagateLabels (const std::string &cube)
	This method allows the programmer to propagate labels from a specific secondary cube.
void	PropagateTables (const bool prop)
	This method allows the programmer to propagate input tables to the output cube (default is true).
void	PropagatePolygons (const bool prop)
	This method allows the programmer to propagate input blobs to the output cube (default is true).
void	PropagateHistory (const bool prop)
	This method allows the programmer to propagate history to the output cube (default is true).
void	PropagateOriginalLabel (const bool prop)
	This method allows the programmer to propagate original labels to the output cube (default is true).
Isis::Progress *	Progress ()
	This method returns a pointer to a Progress object.
std::string	MissionData (const std::string &mission, const std::string &file, bool highestVersion=false)
	This method reads the mission specific data directory from the user preference file, makes sure that mission is available in the Isis installation, and the attaches the provided input file to the directory in order to create a full file specification.
void	WriteHistory (Cube &cube)
	Writes out the History blob to the cube.
Protected Attributes
Isis::Progress *	p_progress
	Pointer to a Progress object.
bool	p_propagateLabels
	Flag indicating if labels are be propagated to output cubes.
bool	p_propagateTables
	Flag indicating if tables are be propagated to output cubes.
bool	p_propagatePolygons
	Flag indicating if blobs are be propagated to output cubes.
bool	p_propagateHistory
	Flag indicating if history is to be propagated to output cubes.
bool	p_propagateOriginalLabel
	Flag indicating if original lable is to be propagated to output cubes.
std::vector< Isis::Cube * >	InputCubes
	A vector of pointers to opened Cube objects.
std::vector< Isis::Cube * >	OutputCubes
	A vector of pointers to allocated Cube objects.

Constructor & Destructor Documentation

Isis::Process::Process ( )

Constructs a Process Object.

Definition at line 41 of file Process.cpp.

References p_progress, p_propagateHistory, p_propagateLabels, p_propagateOriginalLabel, p_propagatePolygons, p_propagateTables, and Isis::Progress::SetText().

Isis::Process::~Process ( ) [virtual]

Destroys the Process Object. It will close all opened cubes.

Definition at line 52 of file Process.cpp.

References EndProcess(), and p_progress.

Member Function Documentation

void Isis::Process::ClearInputCubes ( )

This method clears the input cube list.

It is most commonly used in applications which need to generate an output cube without an input cube, however, propogation of input characteristics are known. For example, creating the initial cube for a mosaic.

Definition at line 579 of file Process.cpp.

References InputCubes.

Referenced by Isis::ProcessMapMosaic::SetOutputCube(), Isis::ProcessGroundPolygons::SetOutputCube(), and Isis::ProcessMapMosaic::StartProcess().

void Isis::Process::EndProcess ( ) [virtual]

End the processing sequence and cleans up by closing cubes, freeing memory, etc.

Reimplemented in Isis::ProcessByBoxcar, Isis::ProcessByBrick, Isis::ProcessByTile, Isis::ProcessGroundPolygons, Isis::ProcessImportPds, and Isis::ProcessPolygons.

Definition at line 444 of file Process.cpp.

References InputCubes, and OutputCubes.

Referenced by Isis::ProcessPolygons::EndProcess(), Isis::ProcessImportPds::EndProcess(), Isis::ProcessByBrick::EndProcess(), Isis::ProcessByBoxcar::EndProcess(), and ~Process().

string Isis::Process::MissionData	(	const std::string &	mission,
		const std::string &	file,
		bool	highestVersion = `false`
	)

This method reads the mission specific data directory from the user preference file, makes sure that mission is available in the Isis installation, and the attaches the provided input file to the directory in order to create a full file specification.

Parameters:

	mission	Name of the mission data directory
	file	Name of the file to attach to the end of the directory
	highestVersion	If set to true the method will return the highest version number of the given file. Therefore, file must contain question marks such as "file???.dat". See the Filename class for more information on versioned files. Defaults to false.

Definition at line 555 of file Process.cpp.

References _FILEINFO_, Isis::Filename::Exists(), Isis::Filename::Expanded(), Isis::PvlObject::FindGroup(), Isis::Filename::HighestVersion(), Isis::iException::Message(), and Isis::Preference::Preferences().

Isis::Progress* Isis::Process::Progress ( ) [inline]

This method returns a pointer to a Progress object.

Returns:: Progress*

Definition at line 211 of file Process.h.

References p_progress.

Referenced by Isis::ProcessMapMosaic::SetOutputCube(), and Isis::ProcessMapMosaic::StartProcess().

void Isis::Process::PropagateHistory ( const bool prop )

This method allows the programmer to propagate history to the output cube (default is true).

Parameters:

prop

Flag indicating if history is to be propagated to output cubes.

Definition at line 524 of file Process.cpp.

References p_propagateHistory.

Referenced by Isis::ProcessMapMosaic::SetOutputCube().

void Isis::Process::PropagateLabels ( const std::string & cube )

This method allows the programmer to propagate labels from a specific secondary cube.

Parameters:

cube

iString containing the name of the cube containing the labels to propagate.

Definition at line 482 of file Process.cpp.

References Isis::PvlObject::AddGroup(), g, incube, OutputCubes, and pvl().

void Isis::Process::PropagateLabels ( const bool prop )

This method allows the programmer to turn on/off the propagation of labels from the 1st input cube to any of the output cubes.

By default, propagation occurs automatically in the Process class when a call to either of the SetOutputCube methods is invoked. If the program * requires no propagation then utilize this method. This method can be invoked between successive calls of SetOutputCube so that some cube will have labels propagated while others will not.

Parameters:

prop

Flag indicating if labels are be propagated to output cubes.

Definition at line 471 of file Process.cpp.

References p_propagateLabels.

Referenced by Isis::ProcessMapMosaic::SetOutputCube().

void Isis::Process::PropagateOriginalLabel ( const bool prop )

This method allows the programmer to propagate original labels to the output cube (default is true).

Parameters:

prop

Flag indicating if original labels is to be propagated to output cubes.

Definition at line 535 of file Process.cpp.

References p_propagateOriginalLabel.

Referenced by Isis::ProcessMapMosaic::SetOutputCube().

void Isis::Process::PropagatePolygons ( const bool prop )

This method allows the programmer to propagate input blobs to the output cube (default is true).

Parameters:

prop

Flag indicating if input blobs are to be propagated to output cubes.

Definition at line 514 of file Process.cpp.

References p_propagatePolygons.

Referenced by Isis::ProcessMapMosaic::SetOutputCube().

void Isis::Process::PropagateTables ( const bool prop )

This method allows the programmer to propagate input tables to the output cube (default is true).

Parameters:

prop

Flag indicating if input tables are to be propagated to output cubes.

Definition at line 503 of file Process.cpp.

References p_propagateTables.

Referenced by Isis::ProcessMapMosaic::SetOutputCube().

Isis::Cube * Isis::Process::SetInputCube	(	const std::string &	fname,
		const Isis::CubeAttributeInput &	att,
		int	requirements = `0`
	)

Opens an input cube specified by the programmer and verifies requirements are met.

Parameters:

	fname	Programmer specified work file. For example, "myfile.cub".
	att	The cube attributes to use when opening the input cube.
	requirements	Same as requirements on SetInputCube. See that method for more details. Defaults to 0

Returns:: Cube*

Exceptions:

Isis::iException::Message

Reimplemented in Isis::ProcessByBrick.

Definition at line 72 of file Process.cpp.

References _FILEINFO_, Isis::AllMatchOrOne, Isis::BandMatchOrOne, Isis::Cube::Bands(), Isis::CubeAttributeInput::Bands(), cube, e, InputCubes, Isis::Cube::Lines(), Isis::iException::Message(), Isis::OneBand, Isis::Cube::Open(), Isis::ReadWrite, Isis::Cube::Samples(), Isis::Cube::SetVirtualBands(), Isis::SizeMatch, and Isis::SpatialMatch.

Isis::Cube * Isis::Process::SetInputCube	(	const std::string &	parameter,
		const int	requirements = `0`
	)

Opens an input cube specified by the user and verifies requirements are met.

Returns:: Cube*

Parameters:

	parameter	User parameter to obtain file to open. Typically, the value is "FROM". For example, the user can specify on the command line FROM=myfile.cub and this method will attempt to open the cube "myfile.cub" if the parameter was set to "FROM".
	requirements	Use to specify requirements for the input file. The following are requirments are checked against 1) ic_base::SizeMatch checks to make sure the input cube has the same bands, samples, and lines as the first input cube open using this method, 2) ic_base::SpatialMatch checks to make sure the input cube has the same samples and lines as the first input cube, 3) ic_base::Georeferenced checks to make sure latitude/longitudes can be obtained from the input cube, 4) ic_base::FullyGeoreferenced checks to make sure latitude/longitude, phase/incidence/emission, and other geometric parameters can be obtained from the input cube, 5) ic_base::OneBand checks to make sure the input cube has exactly one band. Note, that these requirements can be logically or'ed. For example, ic_base::SpatialMatch \| ic_base::georeferenced. Defaults to 0

Exceptions:

Isis::iException::Message

Reimplemented in Isis::ProcessByBrick, Isis::ProcessByLine, Isis::ProcessBySample, and Isis::ProcessBySpectra.

Definition at line 214 of file Process.cpp.

References IsisAml::GetFilename(), IsisAml::GetInputAttribute(), and Isis::Application::GetUserInterface().

Referenced by Isis::ProcessMosaic::SetInputCube(), Isis::ProcessBySample::SetInputCube(), Isis::ProcessByLine::SetInputCube(), Isis::ProcessByBrick::SetInputCube(), and Isis::ProcessGroundPolygons::SetOutputCube().

Isis::Cube * Isis::Process::SetOutputCube	(	const std::string &	fname,
		const Isis::CubeAttributeOutput &	att,
		const int	ns,
		const int	nl,
		const int	nb = `1`
	)

Allocates a output cube whose name and size is specified by the programmer.

Returns:: Cube*

Parameters:

	fname	Name of the output cube to allocate
	att	The cube attributes to use when creating the output cube.
	ns	Number of samples to allocate
	nl	Number of lines to allocate
	nb	Number of bands to allocate

Exceptions:

Isis::iException::Message

Definition at line 305 of file Process.cpp.

Isis::Cube * Isis::Process::SetOutputCube	(	const std::string &	parameter,
		const int	ns,
		const int	nl,
		const int	nb = `1`
	)

Allocates a user specified output cube whose size is specified by the programmer.

Returns:: Cube*

Parameters:

	parameter	User specified output file. For example, "TO" is a popular user parameter. If the user specified TO=output.cub, then this routine would allocate the file output.cub with size specified by the first opened input cube. The output pixel type will be propagated from the first loaded input cube or will use the value in the application XML file for pixelType.
	ns	Number of samples to allocate
	nl	Number of lines to allocate
	nb	Number of bands to allocate

Exceptions:

Isis::iException::Message

Reimplemented in Isis::ProcessPolygons.

Definition at line 273 of file Process.cpp.

References _FILEINFO_, IsisAml::GetFilename(), IsisAml::GetOutputAttribute(), Isis::Application::GetUserInterface(), Isis::iException::Message(), and SetOutputCube().

Isis::Cube * Isis::Process::SetOutputCube ( const std::string & parameter )

Allocates a user-specified output cube whose size matches the first input cube.

Returns:: Cube*

Parameters:

parameter

User specified output file. For example, "TO" is a popular user parameter. If the user specified TO=output.cub, then this routine would allocate the file output.cub with size specified by the first opened input cube. The output pixel type will be propagated from the first loaded input cube or will use the value in the application XML file for pixelType.

Exceptions:

Isis::iException::Message

Reimplemented in Isis::ProcessImport, Isis::ProcessMapMosaic, and Isis::ProcessMosaic.

Definition at line 237 of file Process.cpp.

References _FILEINFO_, InputCubes, Isis::iException::Message(), nb, nl, and ns.

Referenced by Isis::ProcessPolygons::SetOutputCube(), Isis::ProcessMapMosaic::SetOutputCube(), Isis::ProcessImport::SetOutputCube(), Isis::ProcessGroundPolygons::SetOutputCube(), and SetOutputCube().

void Isis::Process::StartProcess ( void funct() ) [inline]

In the base class, this method will invoked a user-specified function exactly one time.

In derived classes such as ProcessByLine, the StartProcess will invoke a user-specified function for every line in a cube.

Parameters:

funct()

Name of your processing function