Merging qtgui branch-r9068:9837: this ads a qtgui_sink_c and qtgui_sink_f that displays the time, PSD, and spectrogram plots of a signal put into it. It requires qt4, qwt, and qwtplot3d and has not been tested on OSX.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9853 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 81 insertions, 0 deletions

diff --git a/gr-qtgui/src/lib/FrequencyDisplayPlot.h b/gr-qtgui/src/lib/FrequencyDisplayPlot.h
new file mode 100644
index 000000000..fb647d964
--- /dev/null
+++ b/gr-qtgui/src/lib/FrequencyDisplayPlot.h
@@ -0,0 +1,81 @@
+#ifndef FREQUENCY_DISPLAY_PLOT_HPP
+#define FREQUENCY_DISPLAY_PLOT_HPP
+
+#include <qwt_plot.h>
+#include <qwt_painter.h>
+#include <qwt_plot_canvas.h>
+#include <qwt_plot_curve.h>
+#include <qwt_scale_engine.h>
+#include <qwt_scale_widget.h>
+#include <qwt_plot_zoomer.h>
+#include <qwt_plot_panner.h>
+#include <qwt_plot_marker.h>
+#include <highResTimeFunctions.h>
+#include <qwt_symbol.h>
+
+class FrequencyDisplayPlot:public QwtPlot{
+  Q_OBJECT
+
+public:
+  FrequencyDisplayPlot(QWidget*);
+  virtual ~FrequencyDisplayPlot();
+
+  void SetFrequencyRange(const double, const double, const double, const bool);
+  double GetStartFrequency()const;
+  double GetStopFrequency()const;
+
+  void PlotNewData(const double* dataPoints, const int64_t numDataPoints, const double noiseFloorAmplitude, const double peakFrequency, const double peakAmplitude);
+  
+  void ClearMaxData();
+  void ClearMinData();
+  
+  void SetMaxFFTVisible(const bool);
+  void SetMinFFTVisible(const bool);
+				   
+  virtual void replot();
+
+public slots:
+  void SetLowerIntensityLevel(const double);
+  void SetUpperIntensityLevel(const double);
+
+protected:
+
+private:
+  void _resetXAxisPoints();
+  
+  double _startFrequency;
+  double _stopFrequency;
+
+  QwtPlotCurve* _fft_plot_curve;
+  QwtPlotCurve* _min_fft_plot_curve;
+  QwtPlotCurve* _max_fft_plot_curve;
+
+  QwtPlotMarker* _lower_intensity_marker;
+  QwtPlotMarker* _upper_intensity_marker;
+
+  QwtPlotPanner* _panner;
+  QwtPlotZoomer* _zoomer;
+
+  QwtPlotMarker *_markerPeakAmplitude;
+  QwtPlotMarker *_markerNoiseFloorAmplitude;
+  
+  double* _dataPoints;
+  double* _xAxisPoints;
+
+  double* _minFFTPoints;
+  double* _maxFFTPoints;
+  int64_t _numPoints;
+
+  double _peakFrequency;
+  double _peakAmplitude;
+
+  double _noiseFloorAmplitude;
+
+  timespec _lastReplot;
+
+  bool _useCenterFrequencyFlag;
+
+  double _displayIntervalTime;
+};
+
+#endif /* FREQUENCY_DISPLAY_PLOT_HPP */