contour.h

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// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//
// $Id: contour.h,v 1.17 2004/04/22 10:08:19 oliver Exp $
//

#ifndef BALL_DATATYPE_CONTOUR_H
#define BALL_DATATYPE_CONTOUR_H

#ifndef BALL_DATATYPE_REGULARDATA2D_H
# include <BALL/DATATYPE/regularData2D.h>
#endif

#ifndef BALL_DATATYPE_CONTOURLINE_H
# include <BALL/DATATYPE/contourLine.h>
#endif

#include <vector>


namespace BALL
{
  template <typename T>
  class TContour
  {
    public:

    // macro for create method
    BALL_CREATE(TContour<T>)

    
    TContour(Size num_lines=0, double start=0, double end=0);

    TContour(const TContour& contour);

    virtual ~TContour();
    


    bool getNextContourLine(TContourLine<T>& contour);


      
    TContour& operator = (const TContour& rhs);

    void apply(TRegularData2D<T>& data);

    virtual void clear();

    void resetCounter();


      
    bool operator == (const TContour& contour) const;


    protected:
      
    std::vector< TContourLine<T> > lines_;
    Size num_lines_;
    double start_;
    double end_;
    typename std::vector<TContourLine<T> >::const_iterator it_;
    Position index_;
  };

  typedef TContour<float> Contour;

  template <typename T>
  TContour<T>::TContour(Size num_lines, double start, double end) : lines_(num_lines), num_lines_(num_lines), start_(start), end_(end), index_(0)
  {
  }

  template <typename T>
  TContour<T>::TContour(const TContour& copyTContour) : lines_(copyTContour.lines_), num_lines_(copyTContour.num_lines_), start_(copyTContour.start_), end_(copyTContour.end_), index_(copyTContour.index_)
  {
  }

  template <typename T>
  TContour<T>::~TContour()
  {
  }

  template <typename T>
  TContour<T>& TContour<T>::operator = (const TContour& rhs)
  {
    start_     = rhs.start_;
    end_       = rhs.end_;
    num_lines_ = rhs.num_lines_;
    it_        = rhs.it_;
  }

  template <typename T>
  void TContour<T>::clear()
  {
    start_     = 0;
    end_       = 0;
    num_lines_ = 0;
    lines_     = std::vector< TContourLine<T> >(0);
    index_     = 0;
  }

  template <typename T>
  bool TContour<T>::operator == (const TContour& compTContour) const
  {
    return ((start_ == compTContour.start_) && (end_ == compTContour.end_) && (lines_ == compTContour.lines_)
      && (num_lines_ == compTContour.num_lines_) && (it_ == compTContour.it_) && (index_ == compTContour.index_));
  }

  template <typename T>
  void TContour<T>::apply(TRegularData2D<T>& data)
  {
    Position i;
    double step = (end_ - start_) / num_lines_;

    for (i=0; i<num_lines_; i++)
    {
      TContourLine<T> con(start_ + i*step);
      con.createContourLine(data);
      lines_[i]=con;
    };

    if (num_lines_ > 0)
    {
      it_ = lines_.begin();
      index_ = 0;
    };
  }

  template <typename T>
  bool TContour<T>::getNextContourLine(TContourLine<T>& cont)
  {
    if (index_<num_lines_)
      {
        cont = *it_;
        it_++;
        index_++;
        return (true);
      } else {
        return false;
      };
  }

  template <typename T>
  void TContour<T>::resetCounter()
  {
    it_ = lines_.begin();
    index_ = 0;
  }

} // namespace BALL

#endif