[4302] | 1 |
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| 2 | /* -------------------------------------------------------------------------
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| 3 | * BKG NTRIP Client
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| 4 | * -------------------------------------------------------------------------
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| 5 | *
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| 6 | * Class: t_polarPlot
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| 7 | *
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| 8 | * Purpose: Polar Plot
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| 9 | *
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| 10 | * Author: L. Mervart
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| 11 | *
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| 12 | * Created: 23-Jun-2012
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| 13 | *
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| 14 | * Changes:
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| 15 | *
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| 16 | * -----------------------------------------------------------------------*/
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| 17 |
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| 18 | #include <qpen.h>
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| 19 | #include <qwt_series_data.h>
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| 20 | #include <qwt_symbol.h>
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| 21 | #include <qwt_legend.h>
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| 22 | #include <qwt_polar_grid.h>
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| 23 | #include <qwt_polar_curve.h>
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| 24 | #include <qwt_polar_marker.h>
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| 25 | #include <qwt_scale_engine.h>
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| 26 |
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| 27 | #include "polarplot.h"
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| 28 |
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[4311] | 29 | const QwtInterval zenithInterval(0.0, 90.0);
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| 30 | const QwtInterval azimuthInterval(0.0, 360.0);
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[4302] | 31 |
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[4311] | 32 | // Data Class
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[4302] | 33 | ////////////////////////////////////////////////////////////////////////////
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| 34 | class Data: public QwtSeriesData<QwtPointPolar> {
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| 35 | public:
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[4311] | 36 | Data(const QwtInterval &zenithInterval,
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| 37 | const QwtInterval &azimuthInterval, size_t size) :
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| 38 | _zenithInterval(zenithInterval), _azimuthInterval(azimuthInterval),
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| 39 | _size(size) {}
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[4302] | 40 |
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| 41 | virtual size_t size() const {return _size;}
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| 42 |
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| 43 | protected:
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[4311] | 44 | QwtInterval _zenithInterval;
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[4302] | 45 | QwtInterval _azimuthInterval;
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| 46 | size_t _size;
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| 47 | };
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| 48 |
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[4311] | 49 | // Spiral Data Class
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[4302] | 50 | ////////////////////////////////////////////////////////////////////////////
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| 51 | class SpiralData: public Data {
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| 52 | public:
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[4311] | 53 | SpiralData(const QwtInterval &zenithInterval,
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| 54 | const QwtInterval &azimuthInterval, size_t size) :
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| 55 | Data(zenithInterval, azimuthInterval, size) {}
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[4302] | 56 |
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[4311] | 57 | virtual QwtPointPolar sample(size_t ii) const {
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[4302] | 58 | const double stepA = 4 * _azimuthInterval.width() / _size;
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[4311] | 59 | const double aa = _azimuthInterval.minValue() + ii * stepA;
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[4302] | 60 |
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[4311] | 61 | const double stepR = _zenithInterval.width() / _size;
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| 62 | const double rr = _zenithInterval.minValue() + ii * stepR;
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[4302] | 63 |
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[4311] | 64 | return QwtPointPolar(aa, rr);
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[4302] | 65 | }
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| 66 |
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| 67 | virtual QRectF boundingRect() const {
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[4311] | 68 | if (d_boundingRect.width() < 0.0) {
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| 69 | d_boundingRect = qwtBoundingRect(*this);
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[4302] | 70 | }
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| 71 | return d_boundingRect;
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| 72 | }
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| 73 | };
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| 74 |
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| 75 | // Constructor
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| 76 | ////////////////////////////////////////////////////////////////////////////
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| 77 | t_polarPlot::t_polarPlot( QWidget *parent ) :
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[4311] | 78 | QwtPolarPlot(QwtText("Polar Plot"), parent) {
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[4302] | 79 |
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[4313] | 80 | setPlotBackground(Qt::white);
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[4302] | 81 |
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| 82 | // Scales
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| 83 | // ------
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[4311] | 84 | setScale(QwtPolar::Radius,
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| 85 | zenithInterval.minValue(), zenithInterval.maxValue());
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| 86 |
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[4302] | 87 | setScale(QwtPolar::Azimuth,
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| 88 | azimuthInterval.minValue(), azimuthInterval.maxValue(),
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| 89 | azimuthInterval.width() / 12);
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| 90 |
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| 91 | // Grids, Axes
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| 92 | // -----------
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| 93 | _grid = new QwtPolarGrid();
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[4313] | 94 | _grid->setPen(QPen(Qt::black));
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[4302] | 95 | for ( int scaleId = 0; scaleId < QwtPolar::ScaleCount; scaleId++ ) {
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[4313] | 96 | _grid->showGrid(scaleId);
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[4302] | 97 | }
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| 98 |
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[4311] | 99 | _grid->setAxisPen(QwtPolar::AxisAzimuth, QPen(Qt::black));
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[4302] | 100 |
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[4313] | 101 | _grid->showAxis(QwtPolar::AxisAzimuth, true);
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[4311] | 102 | _grid->showAxis(QwtPolar::AxisTop, true);
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| 103 | _grid->showAxis(QwtPolar::AxisBottom, false);
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[4313] | 104 | _grid->showAxis(QwtPolar::AxisLeft, false);
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| 105 | _grid->showAxis(QwtPolar::AxisRight, false);
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[4311] | 106 |
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| 107 | _grid->showGrid(QwtPolar::Azimuth, true);
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| 108 | _grid->showGrid(QwtPolar::Radius, true);
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| 109 |
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[4302] | 110 | _grid->attach( this );
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| 111 |
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| 112 | // Curves
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| 113 | // ------
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| 114 | QwtPolarCurve* curve = createCurve();
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| 115 | curve->attach(this);
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| 116 | _curves << curve;
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| 117 |
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| 118 | // Legend
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| 119 | // ------
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| 120 | QwtLegend *legend = new QwtLegend;
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[4311] | 121 | insertLegend(legend, QwtPolarPlot::BottomLegend);
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[4302] | 122 | }
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| 123 |
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[4309] | 124 | // Destructor
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| 125 | ////////////////////////////////////////////////////////////////////////////
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| 126 | t_polarPlot::~t_polarPlot() {
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| 127 | }
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| 128 |
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[4302] | 129 | //
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| 130 | ////////////////////////////////////////////////////////////////////////////
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| 131 | QwtPolarCurve* t_polarPlot::createCurve() const {
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| 132 | const int numPoints = 200;
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| 133 | QwtPolarCurve* curve = new QwtPolarCurve();
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[4312] | 134 | curve->setStyle(QwtPolarCurve::NoCurve); // draw only symbols
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| 135 | curve->setSymbol(new QwtSymbol(QwtSymbol::Ellipse,
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[4313] | 136 | QBrush(Qt::red), QPen(Qt::red),
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[4311] | 137 | QSize(3, 3)));
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| 138 | curve->setData(new SpiralData(zenithInterval, azimuthInterval, numPoints));
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[4302] | 139 | return curve;
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| 140 | }
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