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author | Tomi Korpipää <tomi.korpipaa@digia.com> | 2013-10-14 08:12:34 +0300 |
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committer | Tomi Korpipää <tomi.korpipaa@digia.com> | 2013-10-14 08:12:34 +0300 |
commit | 18a5a1510b90a16007569f436392b52553f150fa (patch) | |
tree | 190f35b2da9ad298a4bc1636d0a9d993f41ea288 /tests/spectrum/spectrumapp/frequencyspectrum.h | |
parent | a64c67d75badaa7662b8a05b8bc7ed78ec8e651e (diff) | |
parent | 34c345b024be424873bbb8b3c83414eea2bc7523 (diff) |
Merge remote-tracking branch 'origin/develop'
Change-Id: I3b63e58db8a5555ada270f81f88fa3b04cecada9
Diffstat (limited to 'tests/spectrum/spectrumapp/frequencyspectrum.h')
-rw-r--r-- | tests/spectrum/spectrumapp/frequencyspectrum.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/tests/spectrum/spectrumapp/frequencyspectrum.h b/tests/spectrum/spectrumapp/frequencyspectrum.h new file mode 100644 index 00000000..0008985f --- /dev/null +++ b/tests/spectrum/spectrumapp/frequencyspectrum.h @@ -0,0 +1,76 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the QtDataVisualization module. +** +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** +****************************************************************************/ + +#ifndef FREQUENCYSPECTRUM_H +#define FREQUENCYSPECTRUM_H + +#include <QtCore/QVector> + +/** + * Represents a frequency spectrum as a series of elements, each of which + * consists of a frequency, an amplitude and a phase. + */ +class FrequencySpectrum { +public: + FrequencySpectrum(int numPoints = 0); + + struct Element { + Element() + : frequency(0.0), amplitude(0.0), phase(0.0), clipped(false) + { } + + /** + * Frequency in Hertz + */ + qreal frequency; + + /** + * Amplitude in range [0.0, 1.0] + */ + qreal amplitude; + + /** + * Phase in range [0.0, 2*PI] + */ + qreal phase; + + /** + * Indicates whether value has been clipped during spectrum analysis + */ + bool clipped; + }; + + typedef QVector<Element>::iterator iterator; + typedef QVector<Element>::const_iterator const_iterator; + + void reset(); + + int count() const; + Element& operator[](int index); + const Element& operator[](int index) const; + iterator begin(); + iterator end(); + const_iterator begin() const; + const_iterator end() const; + +private: + QVector<Element> m_elements; + +}; + +#endif // FREQUENCYSPECTRUM_H |