evFeatureCompositor.h

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/*
 *
 * EVITA: Efficient Visualization of Terascale Datasets
 * Copyright (C) 2000-2016  Team Evita
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
 * MA 02139, USA.
 *
 */


#ifndef __evFeatureCompositor_h
#define __evFeatureCompositor_h


#include "evProcessObject.h"
#include "evScalarField.h"

#include <list>


class evFeatureCompositor : public evProcessObject
{
public:
  evFeatureCompositor(void)
    {
      this->Initialize();
    }
  virtual ~evFeatureCompositor(void)
    { }

  virtual const evString GetClassName(void) const
  {
    return(evString("evFeatureCompositor"));
  }
  
  virtual int AddFeature(const evScalarField &significance_map);

  virtual int Composite(evScalarField &significance_map) const = 0;

protected:

  typedef const evScalarField *evFeatureField;

  unsigned int GetNumberOfFields(void) const;
  evFeatureField operator [] (const int index) const
    {
      return(this->CompositeList[index]);
    }

private:

  std::vector<evFeatureField> CompositeList;

  void Initialize(void);

};


inline void evFeatureCompositor::Initialize(void)
{
}


inline unsigned int evFeatureCompositor::GetNumberOfFields(void) const
{
  return(this->CompositeList.size());
}


inline int evFeatureCompositor::AddFeature(const evScalarField
                                           &significance_map)
{
  if (this->CompositeList.size() > 1)
    if (significance_map.GetSize() !=
        ((const evScalarField *)(this->CompositeList.back()))->GetSize())
      {
        ErrorHandler.ErrorMessage("evFeatureCompositor::AddFeature(): Significance map must be same size as others in the composite list");
        return(1);
      }

  this->CompositeList.push_back(&significance_map);

  return(0);
}


#endif