82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* *
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* Copyright (C) 2015-2018 Simon Stuerz <simon.stuerz@guh.io> *
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* *
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* This file is part of nymea. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public *
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* License as published by the Free Software Foundation; either *
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* version 2.1 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; If not, see *
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* <http://www.gnu.org/licenses/>. *
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* *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#ifndef SENSORFILTER_H
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#define SENSORFILTER_H
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#include <QObject>
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#include <QVector>
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class SensorFilter : public QObject
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{
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Q_OBJECT
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public:
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enum Type {
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TypeLowPass,
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TypeHighPass,
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TypeAverage
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};
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Q_ENUM(Type)
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explicit SensorFilter(Type filterType, QObject *parent = nullptr);
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float filterValue(float value);
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bool isReady() const;
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void reset();
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Type filterType() const;
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QVector<float> inputData() const;
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QVector<float> outputData() const;
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// Filter configuration
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uint windowSize() const;
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void setFilterWindowSize(uint windowSize = 20);
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float lowPassAlpha() const;
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void setLowPassAlpha(float alpha = 0.2f);
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float highPassAlpha() const;
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void setHighPassAlpha(float alpha = 0.2f);
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private:
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Type m_filterType = TypeLowPass;
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uint m_filterWindowSize = 20;
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float m_lowPassAlpha = 0.2f;
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float m_highPassAlpha = 0.2f;
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float m_averageSum = 0;
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QVector<float> m_inputData;
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QVector<float> m_outputData;
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void addInputValue(float value);
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// Filter methods
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float lowPassFilterValue(float value);
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float highPassFilterValue(float value);
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float averageFilterValue(float value);
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};
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#endif // SENSORFILTER_H
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