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#include "Visualization/VisualizationGraphHelper.h"
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#include "Visualization/qcustomplot.h"
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#include <Data/ScalarTimeSerie.h>
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#include <Data/SpectrogramTimeSerie.h>
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#include <Data/VectorTimeSerie.h>
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#include <Variable/Variable2.h>
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Q_LOGGING_CATEGORY(LOG_VisualizationGraphHelper, "VisualizationGraphHelper")
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namespace
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{
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class SqpDataContainer : public QCPGraphDataContainer
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{
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public:
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void appendGraphData(const QCPGraphData& data) { mData.append(data); }
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};
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/**
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* Struct used to create plottables, depending on the type of the data series from which to create
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* them
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* @tparam T the data series' type
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* @remarks Default implementation can't create plottables
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*/
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template <typename T, typename Enabled = void>
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struct PlottablesCreator
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{
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static PlottablesMap createPlottables(QCustomPlot&) { return {}; }
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};
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PlottablesMap createGraphs(QCustomPlot& plot, int nbGraphs)
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{
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PlottablesMap result {};
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// Creates {nbGraphs} QCPGraph to add to the plot
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for (auto i = 0; i < nbGraphs; ++i)
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{
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auto graph = plot.addGraph();
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result.insert({ i, graph });
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}
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plot.replot();
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return result;
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}
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/**
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* Specialization of PlottablesCreator for scalars
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* @sa ScalarSeries
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*/
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template <typename T>
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struct PlottablesCreator<T, typename std::enable_if_t<std::is_base_of<ScalarTimeSerie, T>::value>>
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{
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static PlottablesMap createPlottables(QCustomPlot& plot) { return createGraphs(plot, 1); }
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};
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/**
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* Specialization of PlottablesCreator for vectors
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* @sa VectorSeries
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*/
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template <typename T>
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struct PlottablesCreator<T, typename std::enable_if_t<std::is_base_of<VectorTimeSerie, T>::value>>
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{
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static PlottablesMap createPlottables(QCustomPlot& plot) { return createGraphs(plot, 3); }
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};
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/**
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* Specialization of PlottablesCreator for spectrograms
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* @sa SpectrogramSeries
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*/
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template <typename T>
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struct PlottablesCreator<T,
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typename std::enable_if_t<std::is_base_of<SpectrogramTimeSerie, T>::value>>
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{
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static PlottablesMap createPlottables(QCustomPlot& plot)
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{
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PlottablesMap result {};
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result.insert({ 0, new QCPColorMap { plot.xAxis, plot.yAxis } });
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plot.replot();
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return result;
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}
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};
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/**
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* Struct used to update plottables, depending on the type of the data series from which to update
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* them
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* @tparam T the data series' type
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* @remarks Default implementation can't update plottables
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*/
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template <typename T, typename Enabled = void>
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struct PlottablesUpdater
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{
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static void setPlotYAxisRange(T&, const DateTimeRange&, QCustomPlot&)
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{
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qCCritical(LOG_VisualizationGraphHelper())
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<< QObject::tr("Can't set plot y-axis range: unmanaged data series type");
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}
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static void updatePlottables(T&, PlottablesMap&, const DateTimeRange&, bool)
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{
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qCCritical(LOG_VisualizationGraphHelper())
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<< QObject::tr("Can't update plottables: unmanaged data series type");
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}
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};
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/**
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* Specialization of PlottablesUpdater for scalars and vectors
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* @sa ScalarSeries
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* @sa VectorSeries
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*/
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template <typename T>
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struct PlottablesUpdater<T, typename std::enable_if_t<std::is_base_of<ScalarTimeSerie, T>::value>>
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{
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static void setPlotYAxisRange(T& dataSeries, const DateTimeRange& xAxisRange, QCustomPlot& plot)
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{
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auto minValue = 0., maxValue = 0.;
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if (auto serie = dynamic_cast<ScalarTimeSerie*>(&dataSeries))
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{
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maxValue = (*std::max_element(std::begin(*serie), std::end(*serie))).v();
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minValue = (*std::min_element(std::begin(*serie), std::end(*serie))).v();
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}
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plot.yAxis->setRange(QCPRange { minValue, maxValue });
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}
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static void updatePlottables(
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T& dataSeries, PlottablesMap& plottables, const DateTimeRange& range, bool rescaleAxes)
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{
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// For each plottable to update, resets its data
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for (const auto& plottable : plottables)
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{
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if (auto graph = dynamic_cast<QCPGraph*>(plottable.second))
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{
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auto dataContainer = QSharedPointer<SqpDataContainer>::create();
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if (auto serie = dynamic_cast<ScalarTimeSerie*>(&dataSeries))
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{
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std::for_each(
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std::begin(*serie), std::end(*serie), [&dataContainer](const auto& value) {
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dataContainer->appendGraphData(QCPGraphData(value.t(), value.v()));
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});
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}
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graph->setData(dataContainer);
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}
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}
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if (!plottables.empty())
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{
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auto plot = plottables.begin()->second->parentPlot();
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if (rescaleAxes)
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{
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plot->rescaleAxes();
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}
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}
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}
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};
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template <typename T>
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struct PlottablesUpdater<T, typename std::enable_if_t<std::is_base_of<VectorTimeSerie, T>::value>>
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{
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static void setPlotYAxisRange(T& dataSeries, const DateTimeRange& xAxisRange, QCustomPlot& plot)
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{
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double minValue = 0., maxValue = 0.;
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if (auto serie = dynamic_cast<VectorTimeSerie*>(&dataSeries))
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{
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std::for_each(
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std::begin(*serie), std::end(*serie), [&minValue, &maxValue](const auto& v) {
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minValue = std::min({ minValue, v.v().x, v.v().y, v.v().z });
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maxValue = std::max({ maxValue, v.v().x, v.v().y, v.v().z });
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});
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}
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plot.yAxis->setRange(QCPRange { minValue, maxValue });
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}
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static void updatePlottables(
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T& dataSeries, PlottablesMap& plottables, const DateTimeRange& range, bool rescaleAxes)
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{
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// For each plottable to update, resets its data
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for (const auto& plottable : plottables)
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{
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if (auto graph = dynamic_cast<QCPGraph*>(plottable.second))
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{
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auto dataContainer = QSharedPointer<SqpDataContainer>::create();
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if (auto serie = dynamic_cast<VectorTimeSerie*>(&dataSeries))
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{
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switch (plottable.first)
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{
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case 0:
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std::for_each(std::begin(*serie), std::end(*serie),
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[&dataContainer](const auto& value) {
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dataContainer->appendGraphData(
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QCPGraphData(value.t(), value.v().x));
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});
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break;
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case 1:
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std::for_each(std::begin(*serie), std::end(*serie),
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[&dataContainer](const auto& value) {
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dataContainer->appendGraphData(
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QCPGraphData(value.t(), value.v().y));
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});
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break;
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case 2:
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std::for_each(std::begin(*serie), std::end(*serie),
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[&dataContainer](const auto& value) {
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dataContainer->appendGraphData(
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QCPGraphData(value.t(), value.v().z));
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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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}
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graph->setData(dataContainer);
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}
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}
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if (!plottables.empty())
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{
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auto plot = plottables.begin()->second->parentPlot();
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if (rescaleAxes)
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{
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plot->rescaleAxes();
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}
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}
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}
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};
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/**
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* Specialization of PlottablesUpdater for spectrograms
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* @sa SpectrogramSeries
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*/
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template <typename T>
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struct PlottablesUpdater<T,
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typename std::enable_if_t<std::is_base_of<SpectrogramTimeSerie, T>::value>>
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{
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static void setPlotYAxisRange(T& dataSeries, const DateTimeRange& xAxisRange, QCustomPlot& plot)
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{
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// TODO
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// double min, max;
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// std::tie(min, max) = dataSeries.yBounds();
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// if (!std::isnan(min) && !std::isnan(max))
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// {
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// plot.yAxis->setRange(QCPRange { min, max });
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// }
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}
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static void updatePlottables(
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T& dataSeries, PlottablesMap& plottables, const DateTimeRange& range, bool rescaleAxes)
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{
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// TODO
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// if (plottables.empty())
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// {
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// qCDebug(LOG_VisualizationGraphHelper())
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// << QObject::tr("Can't update spectrogram: no colormap has been
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// associated");
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// return;
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// }
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// // Gets the colormap to update (normally there is only one colormap)
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// Q_ASSERT(plottables.size() == 1);
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// auto colormap = dynamic_cast<QCPColorMap*>(plottables.at(0));
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// Q_ASSERT(colormap != nullptr);
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// dataSeries.lockRead();
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// // Processing spectrogram data for display in QCustomPlot
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// auto its = dataSeries.xAxisRange(range.m_TStart, range.m_TEnd);
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// // Computes logarithmic y-axis resolution for the spectrogram
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// auto yData = its.first->y();
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// auto yResolution = DataSeriesUtils::resolution(yData.begin(), yData.end(), true);
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// // Generates mesh for colormap
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// auto mesh = DataSeriesUtils::regularMesh(its.first, its.second,
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// DataSeriesUtils::Resolution { dataSeries.xResolution() }, yResolution);
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// dataSeries.unlock();
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// colormap->data()->setSize(mesh.m_NbX, mesh.m_NbY);
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// if (!mesh.isEmpty())
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// {
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// colormap->data()->setRange(QCPRange { mesh.m_XMin, mesh.xMax() },
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// // y-axis range is converted to linear values
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// QCPRange { std::pow(10, mesh.m_YMin), std::pow(10, mesh.yMax()) });
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// // Sets values
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// auto index = 0;
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// for (auto it = mesh.m_Data.begin(), end = mesh.m_Data.end(); it != end; ++it,
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// ++index)
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// {
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// auto xIndex = index % mesh.m_NbX;
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// auto yIndex = index / mesh.m_NbX;
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// colormap->data()->setCell(xIndex, yIndex, *it);
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// // Makes the NaN values to be transparent in the colormap
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// if (std::isnan(*it))
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// {
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// colormap->data()->setAlpha(xIndex, yIndex, 0);
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// }
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// }
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// }
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// // Rescales axes
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// auto plot = colormap->parentPlot();
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// if (rescaleAxes)
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// {
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// plot->rescaleAxes();
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// }
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}
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};
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/**
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* Helper used to create/update plottables
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*/
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struct IPlottablesHelper
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{
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virtual ~IPlottablesHelper() noexcept = default;
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virtual PlottablesMap create(QCustomPlot& plot) const = 0;
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virtual void setYAxisRange(const DateTimeRange& xAxisRange, QCustomPlot& plot) const = 0;
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virtual void update(
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PlottablesMap& plottables, const DateTimeRange& range, bool rescaleAxes = false) const = 0;
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};
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/**
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* Default implementation of IPlottablesHelper, which takes data series to create/update plottables
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* @tparam T the data series' type
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*/
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template <typename T>
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struct PlottablesHelper : public IPlottablesHelper
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{
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explicit PlottablesHelper(std::shared_ptr<T> dataSeries) : m_DataSeries { dataSeries } {}
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PlottablesMap create(QCustomPlot& plot) const override
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{
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return PlottablesCreator<T>::createPlottables(plot);
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}
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void update(
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PlottablesMap& plottables, const DateTimeRange& range, bool rescaleAxes) const override
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{
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if (m_DataSeries)
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{
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PlottablesUpdater<T>::updatePlottables(*m_DataSeries, plottables, range, rescaleAxes);
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}
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else
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{
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qCCritical(LOG_VisualizationGraphHelper()) << "Can't update plottables: inconsistency "
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"between the type of data series and the "
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"type supposed";
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}
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}
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void setYAxisRange(const DateTimeRange& xAxisRange, QCustomPlot& plot) const override
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{
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if (m_DataSeries)
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{
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PlottablesUpdater<T>::setPlotYAxisRange(*m_DataSeries, xAxisRange, plot);
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}
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else
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{
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qCCritical(LOG_VisualizationGraphHelper()) << "Can't update plottables: inconsistency "
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"between the type of data series and the "
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"type supposed";
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}
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}
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std::shared_ptr<T> m_DataSeries;
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};
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/// Creates IPlottablesHelper according to the type of data series a variable holds
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std::unique_ptr<IPlottablesHelper> createHelper(std::shared_ptr<Variable2> variable) noexcept
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{
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switch (variable->type())
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{
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case DataSeriesType::SCALAR:
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return std::make_unique<PlottablesHelper<ScalarTimeSerie>>(
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std::dynamic_pointer_cast<ScalarTimeSerie>(variable->data()));
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case DataSeriesType::SPECTROGRAM:
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return std::make_unique<PlottablesHelper<SpectrogramTimeSerie>>(
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std::dynamic_pointer_cast<SpectrogramTimeSerie>(variable->data()));
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case DataSeriesType::VECTOR:
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return std::make_unique<PlottablesHelper<VectorTimeSerie>>(
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std::dynamic_pointer_cast<VectorTimeSerie>(variable->data()));
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default:
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// Creates default helper
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break;
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}
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return std::make_unique<PlottablesHelper<TimeSeries::ITimeSerie>>(nullptr);
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}
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} // namespace
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PlottablesMap VisualizationGraphHelper::create(
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std::shared_ptr<Variable2> variable, QCustomPlot& plot) noexcept
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{
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if (variable)
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{
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auto helper = createHelper(variable);
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auto plottables = helper->create(plot);
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return plottables;
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}
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else
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{
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qCDebug(LOG_VisualizationGraphHelper())
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<< QObject::tr("Can't create graph plottables : the variable is null");
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return PlottablesMap {};
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}
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}
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void VisualizationGraphHelper::setYAxisRange(
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std::shared_ptr<Variable2> variable, QCustomPlot& plot) noexcept
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{
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if (variable)
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{
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auto helper = createHelper(variable);
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helper->setYAxisRange(variable->range(), plot);
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}
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else
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{
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qCDebug(LOG_VisualizationGraphHelper())
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<< QObject::tr("Can't set y-axis range of plot: the variable is null");
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}
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}
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void VisualizationGraphHelper::updateData(
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PlottablesMap& plottables, std::shared_ptr<Variable2> variable, const DateTimeRange& dateTime)
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{
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auto helper = createHelper(variable);
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helper->update(plottables, dateTime);
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|
}
|
|
|
|
