itk::ProgressReporter Class Reference

#include <itkProgressReporter.h>

Detailed Description

Implements progress tracking for a filter.

This is a utility class for use by filter implementations in GenerateData() and ThreadedGenerateData().

The class constructor sets the progress to 0, and the destructor sets it to 1. In between, there should be one call to CompletedPixel() per pixel. The reporter will automatically update the filter's progress at an interval resulting in the specified number of updates. The default number of updates is 100.

Example usage:

ProgressReporter progress(this, threadId,
                          threadRegion.GetNumberOfPixels(), 100);
for( each pixel )
  {
  ...
  progress.CompletedPixel();
  }

When used in a non-threaded filter, the threadId argument should be 0.

See also

This class is a tool for filter implementers to equip a filter to report on its progress. For information on how to acquire this progress information, see:

• ProcessObject::ReportProgress()
• Object::AddObserver()

Definition at line 60 of file itkProgressReporter.h.

Collaboration diagram for itk::ProgressReporter:

Public Member Functions
	ProgressReporter (ProcessObject *filter, ThreadIdType threadId, SizeValueType numberOfPixels, SizeValueType numberOfUpdates=100, float initialProgress=0.0f, float progressWeight=1.0f)
	~ProgressReporter ()
void	CheckAbortGenerateData ()
void	CompletedPixel ()

Protected Attributes
SizeValueType	m_CurrentPixel
ProcessObject *	m_Filter
float	m_InitialProgress
float	m_InverseNumberOfPixels
SizeValueType	m_PixelsBeforeUpdate
SizeValueType	m_PixelsPerUpdate
float	m_ProgressWeight
ThreadIdType	m_ThreadId

Constructor & Destructor Documentation

ProgressReporter()

itk::ProgressReporter::ProgressReporter	(	ProcessObject *	filter,
		ThreadIdType	threadId,
		SizeValueType	numberOfPixels,
		SizeValueType	numberOfUpdates = 100,
		float	initialProgress = 0.0f,
		float	progressWeight = 1.0f
	)

Constructor sets progress to 0 because the filter is starting.

~ProgressReporter()

itk::ProgressReporter::~ProgressReporter

(

)

Destructor sets progress to 1 because the filter has finished.

Member Function Documentation

CheckAbortGenerateData()

void itk::ProgressReporter::CheckAbortGenerateData ( )

inline

Check if the filter has the ProcessObject::AbortGenerateData flag set. If true, then a ProcessAborted exception will be thrown.

Definition at line 80 of file itkProgressReporter.h.

References itk::Math::e.

CompletedPixel()

void itk::ProgressReporter::CompletedPixel ( )

inline

Called by a filter once per pixel.

Definition at line 96 of file itkProgressReporter.h.

Member Data Documentation

m_CurrentPixel

SizeValueType itk::ProgressReporter::m_CurrentPixel

protected

Definition at line 119 of file itkProgressReporter.h.

m_Filter

ProcessObject* itk::ProgressReporter::m_Filter

protected

Definition at line 116 of file itkProgressReporter.h.

m_InitialProgress

float itk::ProgressReporter::m_InitialProgress

protected

Definition at line 122 of file itkProgressReporter.h.

m_InverseNumberOfPixels

float itk::ProgressReporter::m_InverseNumberOfPixels

protected

Definition at line 118 of file itkProgressReporter.h.

m_PixelsBeforeUpdate

SizeValueType itk::ProgressReporter::m_PixelsBeforeUpdate

protected

Definition at line 121 of file itkProgressReporter.h.

m_PixelsPerUpdate

SizeValueType itk::ProgressReporter::m_PixelsPerUpdate

protected

Definition at line 120 of file itkProgressReporter.h.

m_ProgressWeight

float itk::ProgressReporter::m_ProgressWeight

protected

Definition at line 123 of file itkProgressReporter.h.

m_ThreadId

ThreadIdType itk::ProgressReporter::m_ThreadId

protected

Definition at line 117 of file itkProgressReporter.h.

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

• itkProgressReporter.h