GNU Radio Manual and C++ API Reference 3.9.4.0
The Free & Open Software Radio Ecosystem
plot_waterfall.h
Go to the documentation of this file.
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 <qwt_compat.h>
20#include <qwt_point_3d.h> // doesn't seem necessary, but is...
21#endif
22
23class QwtColorMap;
24
25/*!
26 * \brief A plot item, which displays a waterfall spectrogram
27 * \ingroup qtgui_blk
28 *
29 * \details
30 * A waterfall displays three-dimensional data, where the 3rd dimension
31 * (the intensity) is displayed using colors. The colors are calculated
32 * from the values using a color map.
33 *
34 * \sa QwtRasterData, QwtColorMap
35 */
36class PlotWaterfall : public QwtPlotRasterItem
37{
38public:
39 explicit PlotWaterfall(WaterfallData* data, const QString& title = QString());
40 ~PlotWaterfall() override;
41
42 const WaterfallData* data() const;
43
44 void setColorMap(const QwtColorMap&);
45
46 const QwtColorMap& colorMap() const;
47
48#if QWT_VERSION < 0x060000
49 virtual QwtDoubleRect boundingRect() const;
50 virtual QSize rasterHint(const QwtDoubleRect&) const;
51#endif
52
53 int rtti() const override;
54
55protected:
56#if QWT_VERSION < 0x060000
57 QImage renderImage(const QwtScaleMap& xMap,
58 const QwtScaleMap& yMap,
59 const QwtDoubleRect& rect) const;
60#else
61 QImage renderImage(const QwtScaleMap& xMap,
62 const QwtScaleMap& yMap,
63 const QRectF& rect,
64 const QSize& size = QSize(0, 0)) const override;
65#endif
66
67private:
68 class PrivateData;
69 PrivateData* d_data;
70};
71
72#endif
A plot item, which displays a waterfall spectrogram.
Definition: plot_waterfall.h:37
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:23