ML-Module base class to simplify development of modules encapsulating an algorithm with dedicated input and output interface. More...

#include <mlAlgorithmModule.h>

Inheritance diagram for AlgorithmModule:

Classes
class	Error
	Data structure to indicate an error within an AlgorithmModule derivative's implementation of interface methods. More...

class	InputObjectError
	Data structure indicating an error because of an invalid input object. More...

class	InputParameterError
	Data structure indicating an error because of an invalid input parameter. More...

class	InternalError
	Data structure indicating an internally caused error. More...

Public Member Functions
	AlgorithmModule (int numInputImages, int numOutputImages)
	Forwards given parameters to base class constructor.

	~AlgorithmModule () override

void	handleNotification (Field *field) override
	Never overwrite this method in derivative!

void	activateAttachments () override
	Never overwrite this method in derivative!

void	calculateOutputImageProperties (int outputIndex, PagedImage *outputImage) override
	Never overwrite this method in derivative!

Protected Types
enum	EStatusCode { SC_OK = 0 , SC_ERROR_INPUT_OBJECT , SC_ERROR_INPUT_PARAMETER , SC_ERROR_INTERNAL }
	Contains possible values of field `statusCode`. More...

Protected Member Functions
virtual void	validateInput ()=0
	Validates the values of module's input fields (object and parameter fields).

virtual void	update ()=0
	Executes the algorithm and updates the values of module's output fields with results.

virtual void	clear ()=0
	Clears the values of module's output fields (object and parameter fields).

virtual void	setOutputImageProperties (int outputIndex, PagedImage *outputImage)
	Sets properties of the output image at output `outputIndex`.

Detailed Description

ML-Module base class to simplify development of modules encapsulating an algorithm with dedicated input and output interface.

The class AlgorithmModule already implements an update behavior and status feedback mechanism including a field interface. A developer of a derivative class has to declare module's input and output fields: The name of an input field has to start with prefix "in" followed by an uppercase letter. The name of an output field has to start with prefix "out" followed by an uppercase letter. Beside this the developer has to overwrite interface methods of base class:

to validate values of the input fields: validateInput(),
to update values of the output fields: update(),
to clear values of the output fields: clear(), and if the module owns output image field(s):
the interface method to set the properties of the output image(s): setOutputImageProperties().

Member Enumeration Documentation

◆ EStatusCode

enum AlgorithmModule::EStatusCode

protected

Contains possible values of field statusCode.

Enumerator
SC_OK	No error occurred.
SC_ERROR_INPUT_OBJECT	An invalid input object caused abort of update.
SC_ERROR_INPUT_PARAMETER	An invalid input parameter caused abort of update.
SC_ERROR_INTERNAL	An internal error caused abort of update.

Constructor & Destructor Documentation

◆ AlgorithmModule()

AlgorithmModule::AlgorithmModule	(	int	numInputImages,
		int	numOutputImages
	)

Forwards given parameters to base class constructor.

Creates fields of update control and status feedback interface.

Parameters

numInputImages	Number of input images.
numOutputImages	Number of output images.

◆ ~AlgorithmModule()

AlgorithmModule::~AlgorithmModule ( )

override

Member Function Documentation

◆ activateAttachments()

void AlgorithmModule::activateAttachments ( )

override

Never overwrite this method in derivative!

Updates the internal module state after loading or cloning the module, and enables notification handling again. Related to current value of field onInputChangeBehavior an update or clear is initiated.

◆ calculateOutputImageProperties()

void AlgorithmModule::calculateOutputImageProperties	(	int	outputIndex,
		PagedImage *	outputImage
	)

override

Never overwrite this method in derivative!

Makes sure to call derivative's implementation of setOutputImageProperties() only if update succeeded. Otherwise the output image is invalidated. Handles occurring AlgorithmModule::Error or invalidated output image as result of setOutputImageProperties() and sets status fields accordingly.

Parameters

outputIndex	Index of affected output image field.
outputImage	Affected output image.

◆ clear()

virtual void AlgorithmModule::clear ( )

protectedpure virtual

Clears the values of module's output fields (object and parameter fields).

Implemented in AlgorithmModuleExample, and AlgorithmModuleExampleWithOutputImage.

◆ handleNotification()

void AlgorithmModule::handleNotification ( Field * field )

override

Never overwrite this method in derivative!

Handles field changes. When affected field is identified as an input field than update or clear of module's output fields related to current value of field onInputChangeBehavior is initiated. Interface fields are also considered:

update: Initiates update.
clear: Initiates clear.
onInputChangeBehavior: Initiates update if value is "Update".
Parameters

field Affected field whose value was changed.

◆ setOutputImageProperties()

void AlgorithmModule::setOutputImageProperties	(	int	outputIndex,
		PagedImage *	outputImage
	)

protectedvirtual

Sets properties of the output image at output outputIndex.

Parameters

outputIndex	Index of affected output image field.
outputImage	Affected output image.

Exceptions

Throws an exception of type AlgorithmModule::Error on failure.

Reimplemented in AlgorithmModuleExampleWithOutputImage.

◆ update()

virtual void AlgorithmModule::update ( )

protectedpure virtual

Executes the algorithm and updates the values of module's output fields with results.

Exceptions

Throws an exception of type AlgorithmModule::Error on failure.

Implemented in AlgorithmModuleExample, and AlgorithmModuleExampleWithOutputImage.

◆ validateInput()

virtual void AlgorithmModule::validateInput ( )

protectedpure virtual

Validates the values of module's input fields (object and parameter fields).

Exceptions

Throws an exception of type AlgorithmModule::Error on failure.

Implemented in AlgorithmModuleExample, and AlgorithmModuleExampleWithOutputImage.

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

C:/jh/mevislab/4.0.2_1/source/FMEstable/ReleaseMeVis/Projects/AlgorithmModule/MLAlgorithmModule/Sources/mlAlgorithmModule.h
C:/jh/mevislab/4.0.2_1/source/FMEstable/ReleaseMeVis/Projects/AlgorithmModule/MLAlgorithmModule/Sources/mlAlgorithmModule.cpp

Classes

Public Member Functions

Protected Types

Protected Member Functions

Detailed Description

Member Enumeration Documentation

◆ EStatusCode

Constructor & Destructor Documentation

◆ AlgorithmModule()

◆ ~AlgorithmModule()

Member Function Documentation

◆ activateAttachments()

◆ calculateOutputImageProperties()

◆ clear()

◆ handleNotification()

◆ setOutputImageProperties()

◆ update()

◆ validateInput()