GNU Radio Manual and C++ API Reference 3.10.1.1
The Free & Open Software Radio Ecosystem
plot_waterfall.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2008-2012 Free Software Foundation, Inc.
4 *
5 * This file is part of GNU Radio
6 *
7 * SPDX-License-Identifier: GPL-3.0-or-later
8 *
9 */
10
11#ifndef PLOT_WATERFALL_H
12#define PLOT_WATERFALL_H
13
15#include <qglobal.h>
16#include <qwt_plot_rasteritem.h>
17
18#if QWT_VERSION >= 0x060000
19#include <qsize.h>
20#include <qwt_interval.h>
21
22typedef QwtInterval QwtDoubleInterval;
23#endif
24
25class QwtColorMap;
26
27/*!
28 * \brief A plot item, which displays a waterfall spectrogram
29 * \ingroup qtgui_blk
30 *
31 * \details
32 * A waterfall displays three-dimensional data, where the 3rd dimension
33 * (the intensity) is displayed using colors. The colors are calculated
34 * from the values using a color map.
35 *
36 * \sa QwtRasterData, QwtColorMap
37 */
38class PlotWaterfall : public QwtPlotRasterItem
39{
40public:
41 explicit PlotWaterfall(WaterfallData* data, const QString& title = QString());
42 ~PlotWaterfall() override;
43
44 const WaterfallData* data() const;
45
46 void setColorMap(const QwtColorMap&);
47
48 const QwtColorMap& colorMap() const;
49
50#if QWT_VERSION < 0x060000
51 virtual QwtDoubleRect boundingRect() const;
52 virtual QSize rasterHint(const QwtDoubleRect&) const;
53#endif
54
55 int rtti() const override;
56
57protected:
58#if QWT_VERSION < 0x060000
59 QImage renderImage(const QwtScaleMap& xMap,
60 const QwtScaleMap& yMap,
61 const QwtDoubleRect& rect) const;
62#else
63 QImage renderImage(const QwtScaleMap& xMap,
64 const QwtScaleMap& yMap,
65 const QRectF& rect,
66 const QSize& size = QSize(0, 0)) const override;
67#endif
68
69private:
70 class PrivateData;
71 PrivateData* d_data;
72};
73
74#endif
A plot item, which displays a waterfall spectrogram.
Definition: plot_waterfall.h:39
virtual QwtDoubleRect boundingRect() const
const WaterfallData * data() const
int rtti() const override
void setColorMap(const QwtColorMap &)
const QwtColorMap & colorMap() const
~PlotWaterfall() override
virtual QSize rasterHint(const QwtDoubleRect &) const
QImage renderImage(const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QwtDoubleRect &rect) const
PlotWaterfall(WaterfallData *data, const QString &title=QString())
Definition: waterfallGlobalData.h:24