[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_polar_grid.h>
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[4328] | 22 | #include <qwt_scale_widget.h>
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[4302] | 23 |
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| 24 | #include "polarplot.h"
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[4329] | 25 | #include "graphwin.h"
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[4302] | 26 |
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[4317] | 27 | // Draw Symbols (virtual) - change symbol's color
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[4316] | 28 | ////////////////////////////////////////////////////////////////////////////
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| 29 | void t_polarCurve::drawSymbols(QPainter* painter, const QwtSymbol& symbol,
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| 30 | const QwtScaleMap& azimuthMap,
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| 31 | const QwtScaleMap& radialMap,
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| 32 | const QPointF& pole, int from, int to) const {
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[4328] | 33 | t_colorMap colorMap;
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[4316] | 34 | for (int ii = from; ii <= to; ii++) {
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[4317] | 35 | QwtSymbol ss(symbol);
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[4331] | 36 | const QwtPointPolar& point = sample(ii);
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[4327] | 37 | const QColor color = colorMap.color(QwtInterval(0.0, 1.0), point._value);
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| 38 | ss.setBrush(QBrush(color));
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| 39 | ss.setPen(QPen(color));
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[4317] | 40 | QwtPolarCurve::drawSymbols(painter, ss, azimuthMap, radialMap, pole, ii,ii);
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[4316] | 41 | }
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| 42 | }
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| 43 |
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[4322] | 44 | // Sample (virtual) - this is for testing only
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[4302] | 45 | ////////////////////////////////////////////////////////////////////////////
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[4331] | 46 | QwtPointPolar t_polarData::sample(size_t ii) const {
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[4321] | 47 | const QwtInterval zenithInterval(0.0, 90.0);
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| 48 | const QwtInterval azimuthInterval(0.0, 360.0 );
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[4302] | 49 |
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[4321] | 50 | const double stepA = 4 * azimuthInterval.width() / _size;
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| 51 | const double aa = azimuthInterval.minValue() + ii * stepA;
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[4302] | 52 |
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[4321] | 53 | const double stepR = zenithInterval.width() / _size;
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| 54 | const double rr = zenithInterval.minValue() + ii * stepR;
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| 55 |
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[4327] | 56 | double value = static_cast<double>(ii) / _size;
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[4322] | 57 |
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[4331] | 58 | QwtPointPolar point(aa,rr);
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| 59 | point._value = value;
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| 60 |
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| 61 | return point;
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[4320] | 62 | }
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[4302] | 63 |
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[4321] | 64 | //
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[4302] | 65 | ////////////////////////////////////////////////////////////////////////////
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[4321] | 66 | t_polarCurve* t_polarPlot::createCurve() const {
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| 67 | const int numPoints = 200;
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| 68 | t_polarCurve* curve = new t_polarCurve();
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| 69 | curve->setStyle(QwtPolarCurve::NoCurve); // draw only symbols
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| 70 | curve->setSymbol(new QwtSymbol(QwtSymbol::Ellipse,
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| 71 | QBrush(Qt::red), QPen(Qt::red),
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| 72 | QSize(3, 3)));
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[4326] | 73 | t_polarData* data = new t_polarData(numPoints);
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[4331] | 74 | curve->setData(data);
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[4321] | 75 | return curve;
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[4320] | 76 | }
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[4302] | 77 |
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| 78 | // Constructor
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| 79 | ////////////////////////////////////////////////////////////////////////////
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[4321] | 80 | t_polarPlot::t_polarPlot(QWidget* parent) :
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| 81 | QwtPolarPlot(QwtText("Polar Plot"), parent) {
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[4302] | 82 |
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[4313] | 83 | setPlotBackground(Qt::white);
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[4302] | 84 |
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[4319] | 85 | setAzimuthOrigin(M_PI/2.0);
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| 86 |
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[4302] | 87 | // Scales
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| 88 | // ------
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[4322] | 89 | setScale(QwtPolar::Radius, 0.0, 90.0);
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| 90 | setScale(QwtPolar::Azimuth, 360.0, 0.0, 30.0);
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[4311] | 91 |
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[4302] | 92 | // Grids, Axes
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| 93 | // -----------
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[4314] | 94 | QwtPolarGrid* grid = new QwtPolarGrid();
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| 95 | grid->setPen(QPen(Qt::black));
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[4302] | 96 | for ( int scaleId = 0; scaleId < QwtPolar::ScaleCount; scaleId++ ) {
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[4314] | 97 | grid->showGrid(scaleId);
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[4302] | 98 | }
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| 99 |
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[4314] | 100 | grid->setAxisPen(QwtPolar::AxisAzimuth, QPen(Qt::black));
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[4302] | 101 |
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[4314] | 102 | grid->showAxis(QwtPolar::AxisAzimuth, true);
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| 103 | grid->showAxis(QwtPolar::AxisTop, true);
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| 104 | grid->showAxis(QwtPolar::AxisBottom, false);
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| 105 | grid->showAxis(QwtPolar::AxisLeft, false);
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| 106 | grid->showAxis(QwtPolar::AxisRight, false);
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[4311] | 107 |
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[4314] | 108 | grid->showGrid(QwtPolar::Azimuth, true);
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| 109 | grid->showGrid(QwtPolar::Radius, true);
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[4311] | 110 |
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[4314] | 111 | grid->attach(this);
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[4302] | 112 |
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| 113 | // Curves
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| 114 | // ------
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[4316] | 115 | t_polarCurve* curve = createCurve();
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[4302] | 116 | curve->attach(this);
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| 117 | }
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| 118 |
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