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108 lines
3.1 KiB
108 lines
3.1 KiB
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** |
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* Qwt Widget Library |
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* Copyright (C) 1997 Josef Wilgen |
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* Copyright (C) 2002 Uwe Rathmann |
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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 Qwt License, Version 1.0 |
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*****************************************************************************/ |
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#ifndef QWT_PLOT_SPECTROGRAM_H |
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#define QWT_PLOT_SPECTROGRAM_H |
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#include <qglobal.h> |
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#include "qwt_valuelist.h" |
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#include "qwt_raster_data.h" |
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#include "qwt_plot_rasteritem.h" |
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class QwtColorMap; |
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/*! |
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\brief A plot item, which displays a spectrogram |
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A spectrogram displays threedimenional data, where the 3rd dimension |
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( the intensity ) is displayed using colors. The colors are calculated |
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from the values using a color map. |
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In ContourMode contour lines are painted for the contour levels. |
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\image html spectrogram3.png |
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\sa QwtRasterData, QwtColorMap |
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*/ |
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class QWT_EXPORT QwtPlotSpectrogram: public QwtPlotRasterItem |
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{ |
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public: |
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/*! |
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The display mode controls how the raster data will be represented. |
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- ImageMode\n |
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The values are mapped to colors using a color map. |
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- ContourMode\n |
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The data is displayed using contour lines |
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When both modes are enabled the contour lines are painted on |
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top of the spectrogram. The default setting enables ImageMode. |
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\sa setDisplayMode(), testDisplayMode() |
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*/ |
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enum DisplayMode { |
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ImageMode = 1, |
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ContourMode = 2 |
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}; |
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explicit QwtPlotSpectrogram(const QString &title = QString::null); |
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virtual ~QwtPlotSpectrogram(); |
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void setDisplayMode(DisplayMode, bool on = true); |
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bool testDisplayMode(DisplayMode) const; |
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void setData(const QwtRasterData &data); |
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const QwtRasterData &data() const; |
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void setColorMap(const QwtColorMap &); |
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const QwtColorMap &colorMap() const; |
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virtual QwtDoubleRect boundingRect() const; |
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virtual QSize rasterHint(const QwtDoubleRect &) const; |
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void setDefaultContourPen(const QPen &); |
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QPen defaultContourPen() const; |
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virtual QPen contourPen(double level) const; |
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void setConrecAttribute(QwtRasterData::ConrecAttribute, bool on); |
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bool testConrecAttribute(QwtRasterData::ConrecAttribute) const; |
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void setContourLevels(const QwtValueList &); |
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QwtValueList contourLevels() const; |
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virtual int rtti() const; |
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virtual void draw(QPainter *p, |
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const QwtScaleMap &xMap, const QwtScaleMap &yMap, |
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const QRect &rect) const; |
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protected: |
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virtual QImage renderImage( |
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const QwtScaleMap &xMap, const QwtScaleMap &yMap, |
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const QwtDoubleRect &rect) const; |
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virtual QSize contourRasterSize( |
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const QwtDoubleRect &, const QRect &) const; |
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virtual QwtRasterData::ContourLines renderContourLines( |
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const QwtDoubleRect &rect, const QSize &raster) const; |
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virtual void drawContourLines(QPainter *p, |
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const QwtScaleMap &xMap, const QwtScaleMap &yMap, |
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const QwtRasterData::ContourLines& lines) const; |
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private: |
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class PrivateData; |
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PrivateData *d_data; |
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}; |
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#endif
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