fc3ce7a828
- Faster sweeps by changing 2.LO only when necessary and using 400kHz I2C frequency - Added FPGA settings for selectable ADC samplerate - Additional measurement with different ADC samplerate when signal ID is on to remove ADC images
492 lines
16 KiB
C++
492 lines
16 KiB
C++
#include "tracebodeplot.h"
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#include <QGridLayout>
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#include <qwt_plot_grid.h>
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#include "qwtplotpiecewisecurve.h"
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#include "qwt_series_data.h"
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#include "trace.h"
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#include <cmath>
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#include <QFrame>
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#include <qwt_plot_canvas.h>
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#include <qwt_scale_div.h>
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#include <qwt_plot_layout.h>
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#include "tracemarker.h"
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#include <qwt_symbol.h>
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#include <qwt_plot_picker.h>
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#include <qwt_picker_machine.h>
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#include "bodeplotaxisdialog.h"
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using namespace std;
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static double AxisTransformation(TraceBodePlot::YAxisType type, complex<double> data) {
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switch(type) {
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case TraceBodePlot::YAxisType::Magnitude: return 20*log10(abs(data)); break;
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case TraceBodePlot::YAxisType::Phase: return arg(data) * 180.0 / M_PI; break;
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case TraceBodePlot::YAxisType::VSWR:
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if(abs(data) < 1.0) {
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return (1+abs(data)) / (1-abs(data));
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}
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break;
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default: break;
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}
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return numeric_limits<double>::quiet_NaN();
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}
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template<TraceBodePlot::YAxisType E> class QwtTraceSeries : public QwtSeriesData<QPointF> {
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public:
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QwtTraceSeries(Trace &t)
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: QwtSeriesData<QPointF>(),
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t(t){};
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size_t size() const override {
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return t.size();
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}
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QPointF sample(size_t i) const override {
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Trace::Data d = t.sample(i);
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QPointF p;
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p.setX(d.frequency);
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p.setY(AxisTransformation(E, d.S));
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return p;
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}
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QRectF boundingRect() const override {
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return qwtBoundingRect(*this);
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}
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private:
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Trace &t;
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};
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// Derived plotpicker, exposing transformation functions
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class BodeplotPicker : public QwtPlotPicker {
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public:
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BodeplotPicker(int xAxis, int yAxis, RubberBand rubberBand, DisplayMode trackerMode, QWidget *w)
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: QwtPlotPicker(xAxis, yAxis, rubberBand, trackerMode, w) {};
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QPoint plotToPixel(const QPointF &pos) {
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return transform(pos);
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}
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QPointF pixelToPlot(const QPoint &pos) {
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return invTransform(pos);
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}
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};
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TraceBodePlot::TraceBodePlot(TraceModel &model, QWidget *parent)
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: TracePlot(parent),
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selectedMarker(nullptr)
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{
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plot = new QwtPlot(this);
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plot->setCanvasBackground(Background);
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auto pal = plot->palette();
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pal.setColor(QPalette::Window, Background);
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pal.setColor(QPalette::WindowText, Border);
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pal.setColor(QPalette::Text, Border);
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auto canvas = new QwtPlotCanvas(plot);
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canvas->setFrameStyle(QFrame::Plain);
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plot->setCanvas(canvas);
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plot->setPalette(pal);
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plot->setAutoFillBackground(true);
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auto selectPicker = new BodeplotPicker(plot->xBottom, plot->yLeft, QwtPicker::NoRubberBand, QwtPicker::ActiveOnly, plot->canvas());
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selectPicker->setStateMachine(new QwtPickerClickPointMachine);
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auto drawPicker = new BodeplotPicker(plot->xBottom, plot->yLeft, QwtPicker::NoRubberBand, QwtPicker::ActiveOnly, plot->canvas());
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drawPicker->setStateMachine(new QwtPickerDragPointMachine);
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drawPicker->setTrackerPen(QPen(Qt::white));
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// Marker selection
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connect(selectPicker, qOverload<const QPointF&>(&QwtPlotPicker::selected), [=](const QPointF pos) {
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auto clickPoint = drawPicker->plotToPixel(pos);
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unsigned int closestDistance = numeric_limits<unsigned int>::max();
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TraceMarker *closestMarker = nullptr;
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for(auto m : markers) {
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auto markerPoint = drawPicker->plotToPixel(m.second->value());
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auto yDiff = abs(markerPoint.y() - clickPoint.y());
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auto xDiff = abs(markerPoint.x() - clickPoint.x());
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unsigned int distance = xDiff * xDiff + yDiff * yDiff;
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if(distance < closestDistance) {
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closestDistance = distance;
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closestMarker = m.first;
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}
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}
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if(closestDistance <= 400) {
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selectedMarker = closestMarker;
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selectedCurve = curves[0][selectedMarker->trace()].curve;
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} else {
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selectedMarker = nullptr;
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selectedCurve = nullptr;
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}
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});
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// Marker movement
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connect(drawPicker, qOverload<const QPointF&>(&QwtPlotPicker::moved), [=](const QPointF pos) {
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if(!selectedMarker || !selectedCurve) {
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return;
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}
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// int index = selectedCurve->closestPoint(pos.toPoint());
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// qDebug() << index;
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// if(index < 0) {
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// // unable to find closest point
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// return;
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// }
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// selectedMarker->setFrequency(selectedCurve->sample(index).x());
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selectedMarker->setFrequency(pos.x());
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});
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QwtPlotGrid *grid = new QwtPlotGrid();
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grid->setMajorPen(QPen(Divisions, 1.0, Qt::DotLine));
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grid->attach(plot);
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auto layout = new QGridLayout;
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layout->addWidget(plot);
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layout->setContentsMargins(0, 0, 0, 0);
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setLayout(layout);
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plot->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
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// plot->plotLayout()->setAlignCanvasToScales(true);
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initializeTraceInfo(model);
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setAutoFillBackground(true);
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// Setup default axis
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setYAxis(0, YAxisType::Magnitude, false, false, -120, 20, 10);
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setYAxis(1, YAxisType::Phase, false, false, -180, 180, 30);
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// enable autoscaling and set for full span (no information about actual span available yet)
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setXAxis(0, 6000000000);
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setXAxis(true, 0, 6000000000, 600000000);
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// get notified when the span changes
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connect(&model, &TraceModel::SpanChanged, this, qOverload<double, double>(&TraceBodePlot::setXAxis));
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}
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TraceBodePlot::~TraceBodePlot()
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{
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for(int axis = 0;axis < 2;axis++) {
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for(auto pd : curves[axis]) {
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delete pd.second.curve;
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}
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}
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}
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void TraceBodePlot::setXAxis(double min, double max)
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{
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sweep_fmin = min;
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sweep_fmax = max;
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updateXAxis();
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}
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void TraceBodePlot::setYAxis(int axis, TraceBodePlot::YAxisType type, bool log, bool autorange, double min, double max, double div)
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{
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if(YAxis[axis].type != type) {
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YAxis[axis].type = type;
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// remove traces that are active but not supported with the new axis type
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bool erased = false;
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do {
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erased = false;
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for(auto t : tracesAxis[axis]) {
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if(!supported(t, type)) {
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enableTraceAxis(t, axis, false);
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erased = true;
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break;
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}
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}
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} while(erased);
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for(auto t : tracesAxis[axis]) {
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// supported but needs an adjusted QwtSeriesData
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auto td = curves[axis][t];
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td.data = createQwtSeriesData(*t, axis);
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// call to setSamples deletes old QwtSeriesData
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td.curve->setSamples(td.data);
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if(axis == 0) {
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// update marker data
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auto marker = t->getMarkers();
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for(auto m : marker) {
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markerDataChanged(m);
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}
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}
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}
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}
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YAxis[axis].log = log;
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YAxis[axis].autorange = autorange;
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YAxis[axis].rangeMin = min;
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YAxis[axis].rangeMax = max;
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YAxis[axis].rangeDiv = div;
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// enable/disable y axis
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auto qwtaxis = axis == 0 ? QwtPlot::yLeft : QwtPlot::yRight;
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plot->enableAxis(qwtaxis, type != YAxisType::Disabled);
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if(autorange) {
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plot->setAxisAutoScale(qwtaxis, true);
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} else {
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plot->setAxisScale(qwtaxis, min, max, div);
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}
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updateContextMenu();
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replot();
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}
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void TraceBodePlot::setXAxis(bool autorange, double min, double max, double div)
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{
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XAxis.autorange = autorange;
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XAxis.rangeMin = min;
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XAxis.rangeMax = max;
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XAxis.rangeDiv = div;
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updateXAxis();
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}
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void TraceBodePlot::enableTrace(Trace *t, bool enabled)
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{
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for(int axis = 0;axis < 2;axis++) {
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if(supported(t, YAxis[axis].type)) {
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enableTraceAxis(t, axis, enabled);
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}
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}
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}
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void TraceBodePlot::updateContextMenu()
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{
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contextmenu->clear();
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// for(int axis = 0;axis < 2;axis++) {
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// QMenu *axisMenu;
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// if(axis == 0) {
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// axisMenu = contextmenu->addMenu("Primary Axis");
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// } else {
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// axisMenu = contextmenu->addMenu("Secondary Axis");
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// }
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// auto group = new QActionGroup(this);
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// for(int i=0;i<(int) YAxisType::Last;i++) {
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// auto action = new QAction(AxisTypeToName((YAxisType) i));
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// action->setCheckable(true);
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// group->addAction(action);
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// if(YAxis[axis].type == (YAxisType) i) {
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// action->setChecked(true);
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// }
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// connect(action, &QAction::triggered, [=](bool active) {
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// if(active) {
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// setYAxisType(axis, (YAxisType) i);
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// }
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// });
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// }
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// axisMenu->addActions(group->actions());
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// }
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auto setup = new QAction("Axis setup...");
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connect(setup, &QAction::triggered, [this]() {
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auto setup = new BodeplotAxisDialog(this);
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setup->show();
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});
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contextmenu->addAction(setup);
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for(int axis = 0;axis < 2;axis++) {
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if(YAxis[axis].type == YAxisType::Disabled) {
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continue;
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}
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if(axis == 0) {
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contextmenu->addSection("Primary Traces");
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} else {
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contextmenu->addSection("Secondary Traces");
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}
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for(auto t : traces) {
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// Skip traces that are not applicable for the selected axis type
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if(!supported(t.first, YAxis[axis].type)) {
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continue;
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}
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auto action = new QAction(t.first->name());
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action->setCheckable(true);
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if(tracesAxis[axis].find(t.first) != tracesAxis[axis].end()) {
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action->setChecked(true);
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}
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connect(action, &QAction::toggled, [=](bool active) {
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enableTraceAxis(t.first, axis, active);
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});
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contextmenu->addAction(action);
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}
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}
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contextmenu->addSeparator();
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auto close = new QAction("Close");
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contextmenu->addAction(close);
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connect(close, &QAction::triggered, [=]() {
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markedForDeletion = true;
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});
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}
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bool TraceBodePlot::supported(Trace *)
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{
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// potentially possible to add every kind of trace (depends on axis)
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return true;
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}
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void TraceBodePlot::replot()
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{
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plot->replot();
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}
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QString TraceBodePlot::AxisTypeToName(TraceBodePlot::YAxisType type)
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{
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switch(type) {
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case YAxisType::Disabled: return "Disabled"; break;
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case YAxisType::Magnitude: return "Magnitude"; break;
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case YAxisType::Phase: return "Phase"; break;
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case YAxisType::VSWR: return "VSWR"; break;
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default: return "Unknown"; break;
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}
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}
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void TraceBodePlot::enableTraceAxis(Trace *t, int axis, bool enabled)
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{
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bool alreadyEnabled = tracesAxis[axis].find(t) != tracesAxis[axis].end();
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if(alreadyEnabled != enabled) {
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if(enabled) {
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tracesAxis[axis].insert(t);
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CurveData cd;
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cd.data = createQwtSeriesData(*t, axis);
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cd.curve = new QwtPlotPiecewiseCurve();
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cd.curve->attach(plot);
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cd.curve->setYAxis(axis == 0 ? QwtPlot::yLeft : QwtPlot::yRight);
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cd.curve->setSamples(cd.data);
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curves[axis][t] = cd;
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// connect signals
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connect(t, &Trace::dataChanged, this, &TraceBodePlot::triggerReplot);
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connect(t, &Trace::colorChanged, this, &TraceBodePlot::traceColorChanged);
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connect(t, &Trace::visibilityChanged, this, &TraceBodePlot::traceColorChanged);
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connect(t, &Trace::visibilityChanged, this, &TraceBodePlot::triggerReplot);
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if(axis == 0) {
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connect(t, &Trace::markerAdded, this, &TraceBodePlot::markerAdded);
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connect(t, &Trace::markerRemoved, this, &TraceBodePlot::markerRemoved);
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auto tracemarkers = t->getMarkers();
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for(auto m : tracemarkers) {
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markerAdded(m);
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}
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}
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traceColorChanged(t);
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} else {
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tracesAxis[axis].erase(t);
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// clean up and delete
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if(curves[axis].find(t) != curves[axis].end()) {
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if(curves[axis][t].curve) {
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delete curves[axis][t].curve;
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}
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curves[axis].erase(t);
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}
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int otherAxis = axis == 0 ? 1 : 0;
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if(curves[otherAxis].find(t) == curves[otherAxis].end()) {
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// this trace is not used anymore, disconnect from notifications
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disconnect(t, &Trace::dataChanged, this, &TraceBodePlot::triggerReplot);
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disconnect(t, &Trace::colorChanged, this, &TraceBodePlot::traceColorChanged);
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disconnect(t, &Trace::visibilityChanged, this, &TraceBodePlot::traceColorChanged);
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disconnect(t, &Trace::visibilityChanged, this, &TraceBodePlot::triggerReplot);
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}
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if(axis == 0) {
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disconnect(t, &Trace::markerAdded, this, &TraceBodePlot::markerAdded);
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disconnect(t, &Trace::markerRemoved, this, &TraceBodePlot::markerRemoved);
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auto tracemarkers = t->getMarkers();
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for(auto m : tracemarkers) {
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markerRemoved(m);
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}
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}
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}
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updateContextMenu();
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replot();
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}
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}
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bool TraceBodePlot::supported(Trace *t, TraceBodePlot::YAxisType type)
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{
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switch(type) {
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case YAxisType::Disabled:
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return false;
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case YAxisType::VSWR:
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if(!t->isReflection()) {
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return false;
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}
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break;
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default:
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break;
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}
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return true;
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}
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void TraceBodePlot::updateXAxis()
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{
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if(XAxis.autorange && sweep_fmax-sweep_fmin > 0) {
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QList<double> tickList;
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for(double tick = sweep_fmin;tick <= sweep_fmax;tick+= (sweep_fmax-sweep_fmin)/10) {
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tickList.append(tick);
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}
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QwtScaleDiv scalediv(sweep_fmin, sweep_fmax, QList<double>(), QList<double>(), tickList);
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plot->setAxisScaleDiv(QwtPlot::xBottom, scalediv);
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} else {
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plot->setAxisScale(QwtPlot::xBottom, XAxis.rangeMin, XAxis.rangeMax, XAxis.rangeDiv);
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}
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triggerReplot();
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}
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QwtSeriesData<QPointF> *TraceBodePlot::createQwtSeriesData(Trace &t, int axis)
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{
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switch(YAxis[axis].type) {
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case YAxisType::Magnitude:
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return new QwtTraceSeries<YAxisType::Magnitude>(t);
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case YAxisType::Phase:
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return new QwtTraceSeries<YAxisType::Phase>(t);
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case YAxisType::VSWR:
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return new QwtTraceSeries<YAxisType::VSWR>(t);
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default:
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return nullptr;
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}
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}
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void TraceBodePlot::traceColorChanged(Trace *t)
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{
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for(int axis = 0;axis < 2;axis++) {
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if(curves[axis].find(t) != curves[axis].end()) {
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// trace active, change the pen color
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if(t->isVisible()) {
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if(axis == 0) {
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curves[axis][t].curve->setPen(t->color());
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} else {
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curves[axis][t].curve->setPen(t->color(), 1.0, Qt::DashLine);
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}
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for(auto m : t->getMarkers()) {
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if(markers.count(m)) {
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markers[m]->attach(plot);
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}
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}
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} else {
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curves[axis][t].curve->setPen(t->color(), 0.0, Qt::NoPen);
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for(auto m : t->getMarkers()) {
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if(markers.count(m)) {
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markers[m]->detach();
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}
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}
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}
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}
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}
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}
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void TraceBodePlot::markerAdded(TraceMarker *m)
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{
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if(markers.count(m)) {
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return;
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}
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QwtSymbol *sym=new QwtSymbol;
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sym->setPixmap(m->getSymbol());
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sym->setPinPoint(QPointF(m->getSymbol().width()/2, m->getSymbol().height()));
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auto qwtMarker = new QwtPlotMarker;
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qwtMarker->setSymbol(sym);
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connect(m, &TraceMarker::dataChanged, this, &TraceBodePlot::markerDataChanged);
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markers[m] = qwtMarker;
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markerDataChanged(m);
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qwtMarker->attach(plot);
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triggerReplot();
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}
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void TraceBodePlot::markerRemoved(TraceMarker *m)
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{
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disconnect(m, &TraceMarker::dataChanged, this, &TraceBodePlot::markerDataChanged);
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if(markers.count(m)) {
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markers[m]->detach();
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delete markers[m];
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markers.erase(m);
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}
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triggerReplot();
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}
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void TraceBodePlot::markerDataChanged(TraceMarker *m)
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{
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auto qwtMarker = markers[m];
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qwtMarker->setXValue(m->getFrequency());
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qwtMarker->setYValue(AxisTransformation(YAxis[0].type, m->getData()));
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triggerReplot();
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}
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