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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPKMeansStatistics.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2011 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
// .NAME vtkPKMeansStatisitcs - A class for parallel k means clustering
// .SECTION Description
// vtkPKMeansStatistics is vtkKMeansStatistics subclass for parallel datasets.
// It learns and derives the global statistical model on each node, but assesses each
// individual data points on the node that owns it.
// .SECTION Thanks
// Thanks to Janine Bennett, Philippe Pebay and David Thompson from Sandia National Laboratories for implementing this class.
#ifndef vtkPKMeanStatistics_h
#define vtkPKMeanStatistics_h
#include "vtkFiltersParallelStatisticsModule.h" // For export macro
#include "vtkKMeansStatistics.h"
class vtkMultiProcessController;
class vtkCommunicator;
class VTKFILTERSPARALLELSTATISTICS_EXPORT vtkPKMeansStatistics : public vtkKMeansStatistics
{
public:
static vtkPKMeansStatistics* New();
vtkTypeMacro(vtkPKMeansStatistics, vtkKMeansStatistics);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Get/Set the multiprocess controller. If no controller is set,
// single process is assumed.
virtual void SetController(vtkMultiProcessController*);
vtkGetObjectMacro(Controller, vtkMultiProcessController);
// Description:
// Subroutine to update new cluster centers from the old centers.
virtual void UpdateClusterCenters( vtkTable* newClusterElements,
vtkTable* curClusterElements,
vtkIdTypeArray* numMembershipChanges,
vtkIdTypeArray* numElementsInCluster,
vtkDoubleArray* error,
vtkIdTypeArray* startRunID,
vtkIdTypeArray* endRunID,
vtkIntArray *computeRun );
// Description:
// Subroutine to get the total number of data objects.
virtual vtkIdType GetTotalNumberOfObservations( vtkIdType numObservations );
// Description:
// Subroutine to initialize cluster centerss if not provided by the user.
virtual void CreateInitialClusterCenters(vtkIdType numToAllocate,
vtkIdTypeArray* numberOfClusters,
vtkTable* inData,
vtkTable* curClusterElements,
vtkTable* newClusterElements);
protected:
vtkPKMeansStatistics();
~vtkPKMeansStatistics();
vtkMultiProcessController* Controller;
private:
vtkPKMeansStatistics(const vtkPKMeansStatistics&); // Not implemented.
void operator=(const vtkPKMeansStatistics&); // Not implemented.
};
#endif
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