71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
#ifndef TRACEPOLAR_H
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#define TRACEPOLAR_H
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#include "traceplot.h"
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class PolarArc {
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public:
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PolarArc(QPointF center, double radius, double startAngle = 0.0, double spanAngle = 2*M_PI);
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void constrainToCircle(QPointF center, double radius);
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QPointF center;
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double radius;
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double startAngle, spanAngle;
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};
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class TracePolar : public TracePlot
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{
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Q_OBJECT
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public:
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TracePolar(TraceModel &model, QWidget *parent = 0);
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virtual nlohmann::json toJSON() override; // derived classes must call TracePolar::joJSON before doing anything
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virtual void fromJSON(nlohmann::json j) override; // derived classes must call TracePolar::joJSON before doing anything
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virtual void move(const QPoint &vect) override;
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virtual void zoom(const QPoint ¢er, double factor, bool horizontally, bool vertically) override;
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virtual void setAuto(bool horizontally, bool vertically) override;
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// void wheelEvent(QWheelEvent *event) override;
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public slots:
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virtual void axisSetupDialog() {}
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protected:
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static constexpr double polarCoordMax = 4096;
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virtual bool positionWithinGraphArea(const QPoint &p) override;
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virtual std::complex<double> dataAddOffset(std::complex<double> d);
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virtual Trace::Data dataAddOffset(Trace::Data d);
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QPoint dataToPixel(QPointF d);
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QPoint dataToPixel(std::complex<double> d);
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QPoint dataToPixel(Trace::Data d);
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std::complex<double> pixelToData(QPoint p);
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QPoint markerToPixel(Marker *m) override;
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double nearestTracePoint(Trace *t, QPoint pixel, double *distance = nullptr) override;
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virtual bool markerVisible(double x) override;
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virtual void updateContextMenu() override;
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virtual bool supported(Trace *t) override {Q_UNUSED(t) return false;}
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double minimumVisibleFrequency();
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double maximumVisibleFrequency();
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// given two points and a circle, the two points are adjusted in such a way that the line they describe
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// is constrained within the circle. Returns true if there is a remaining line segment in the circle, false
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// if the line lies completely outside of the circle (or is tangent to the circle)
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static bool constrainLineToCircle(QPointF &a, QPointF &b, QPointF center, double radius);
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bool limitToSpan;
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bool limitToEdge;
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bool manualFrequencyRange;
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double fmin, fmax; // frequency range when manual range is selected
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double edgeReflection; // magnitude of reflection coefficient at the edge of the polar chart (zoom factor)
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QPointF offset;
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QTransform transform;
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};
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#endif // TRACEPOLAR_H
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