mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-29 11:18:56 -05:00
61 lines
2.4 KiB
C++
61 lines
2.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
|
|
// written by Christian Daniel //
|
|
// Copyright (C) 2015-2019, 2022 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
|
|
// Copyright (C) 2015 John Greb <hexameron@spam.no> //
|
|
// Copyright (C) 2022 Jon Beniston, M7RCE <jon@beniston.com> //
|
|
// //
|
|
// Find peaks in a series of real values //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program 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 General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include <algorithm>
|
|
|
|
#include "peakfinder.h"
|
|
|
|
PeakFinder::PeakFinder() :
|
|
m_prevValue(0.0),
|
|
m_index(0)
|
|
{}
|
|
|
|
PeakFinder::~PeakFinder()
|
|
{}
|
|
|
|
void PeakFinder::init(Real value)
|
|
{
|
|
m_prevValue = value;
|
|
m_peaks.clear();
|
|
m_index = 0;
|
|
}
|
|
|
|
void PeakFinder::push(Real value, bool last)
|
|
{
|
|
Real diff = value - m_prevValue;
|
|
|
|
if (diff < 0) {
|
|
m_peaks.push_back({m_prevValue, m_index});
|
|
} else if (last) {
|
|
m_peaks.push_back({value, m_index});
|
|
}
|
|
|
|
m_prevValue = value;
|
|
m_index++;
|
|
}
|
|
|
|
void PeakFinder::sortPeaks()
|
|
{
|
|
std::sort(m_peaks.rbegin(), m_peaks.rend()); // descending order of values
|
|
}
|