finds all local maxima, i.e. any point that has a greater y value than both of its neighboring points and only keep those points More...

#include <filterlocalmaximum.h>

Inheritance diagram for pappso::FilterLocalMaximum:

Public Member Functions
	FilterLocalMaximum (std::size_t half_window_size)
	FilterLocalMaximum (const FilterLocalMaximum &other)
virtual	~FilterLocalMaximum ()
Trace &	filter (Trace &data_points) const override
std::size_t	getHalfWindowSize () const
Public Member Functions inherited from pappso::FilterInterface
virtual	~FilterInterface ()

Private Attributes
std::size_t	m_halfWindowSize = 0

Detailed Description

finds all local maxima, i.e. any point that has a greater y value than both of its neighboring points and only keep those points

usefull documentation : http://pd.chem.ucl.ac.uk/pdnn/peaks/peakindx.htm

Definition at line 43 of file filterlocalmaximum.h.

Constructor & Destructor Documentation

◆ FilterLocalMaximum() [1/2]

FilterLocalMaximum::FilterLocalMaximum ( std::size_t half_window_size )

Default constructor

Definition at line 34 of file filterlocalmaximum.cpp.

  : m_halfWindowSize(half_window_size)
{
}

References m_halfWindowSize.

Referenced by FilterLocalMaximum().

◆ FilterLocalMaximum() [2/2]

FilterLocalMaximum::FilterLocalMaximum ( const FilterLocalMaximum & other )

Copy constructor

Parameters

other TODO

Definition at line 39 of file filterlocalmaximum.cpp.

  : m_halfWindowSize(other.m_halfWindowSize)
{
}

References FilterLocalMaximum(), and m_halfWindowSize.

◆ ~FilterLocalMaximum()

FilterLocalMaximum::~FilterLocalMaximum ( )

virtual

Destructor

Definition at line 44 of file filterlocalmaximum.cpp.

45{

46}

Member Function Documentation

◆ filter()

Trace & FilterLocalMaximum::filter ( Trace & data_points ) const

overridevirtual

Implements pappso::FilterInterface.

Definition at line 49 of file filterlocalmaximum.cpp.

{
 
  if(m_halfWindowSize == 0)
    return data_points;
  Trace new_trace;
  auto it = data_points.begin();
 
  auto itend = data_points.end() - m_halfWindowSize - 1; // no filter at the end of signal
  // new_trace.reserve(data_points.size());
 
  while((it != data_points.end()) &&
        (std::distance(data_points.begin(), it) < (int)m_halfWindowSize))
    {
      // no filter at the begining of the signal
      it++;
    }
  while(it != itend)
    {
      auto itwend = it + m_halfWindowSize + 1;
      auto itw    = maxYDataPoint(it - m_halfWindowSize, it + 1);
      if(itw == it)
        {
          itw = maxYDataPoint(it, itwend);
          if(itw == it)
            {
              new_trace.push_back({it->x, it->y});
            }
        }
 
      it++;
    }
 
  data_points = std::move(new_trace);
  return data_points;
}

References m_halfWindowSize, and pappso::maxYDataPoint().

◆ getHalfWindowSize()

std::size_t FilterLocalMaximum::getHalfWindowSize ( ) const

Definition at line 87 of file filterlocalmaximum.cpp.

{
  return m_halfWindowSize;
}

References m_halfWindowSize.

Member Data Documentation

◆ m_halfWindowSize

std::size_t pappso::FilterLocalMaximum::m_halfWindowSize = 0

private

Definition at line 68 of file filterlocalmaximum.h.

Referenced by FilterLocalMaximum(), FilterLocalMaximum(), filter(), and getHalfWindowSize().

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

pappsomspp/core/processing/filters/filterlocalmaximum.h
pappsomspp/core/processing/filters/filterlocalmaximum.cpp

Public Member Functions

Private Attributes