@@ -1,344 +1,344 | |||
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1 | 1 | #include "Visualization/VisualizationGraphHelper.h" |
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2 | 2 | #include "Visualization/qcustomplot.h" |
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3 | 3 | |
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4 | #include <Data/DataSeriesUtils.h> | |
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4 | 5 | #include <Data/ScalarSeries.h> |
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5 | 6 | #include <Data/SpectrogramSeries.h> |
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6 | 7 | #include <Data/VectorSeries.h> |
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7 | 8 | |
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8 | 9 | #include <Variable/Variable.h> |
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9 | 10 | |
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10 | 11 | Q_LOGGING_CATEGORY(LOG_VisualizationGraphHelper, "VisualizationGraphHelper") |
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11 | 12 | |
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12 | 13 | namespace { |
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13 | 14 | |
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14 | 15 | class SqpDataContainer : public QCPGraphDataContainer { |
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15 | 16 | public: |
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16 | 17 | void appendGraphData(const QCPGraphData &data) { mData.append(data); } |
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17 | 18 | }; |
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18 | 19 | |
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19 | 20 | /** |
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20 | 21 | * Struct used to create plottables, depending on the type of the data series from which to create |
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21 | 22 | * them |
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22 | 23 | * @tparam T the data series' type |
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23 | 24 | * @remarks Default implementation can't create plottables |
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24 | 25 | */ |
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25 | 26 | template <typename T, typename Enabled = void> |
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26 | 27 | struct PlottablesCreator { |
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27 | 28 | static PlottablesMap createPlottables(T &, QCustomPlot &) |
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28 | 29 | { |
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29 | 30 | qCCritical(LOG_DataSeries()) |
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30 | 31 | << QObject::tr("Can't create plottables: unmanaged data series type"); |
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31 | 32 | return {}; |
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32 | 33 | } |
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33 | 34 | }; |
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34 | 35 | |
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35 | 36 | /** |
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36 | 37 | * Specialization of PlottablesCreator for scalars and vectors |
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37 | 38 | * @sa ScalarSeries |
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38 | 39 | * @sa VectorSeries |
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39 | 40 | */ |
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40 | 41 | template <typename T> |
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41 | 42 | struct PlottablesCreator<T, |
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42 | 43 | typename std::enable_if_t<std::is_base_of<ScalarSeries, T>::value |
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43 | 44 | or std::is_base_of<VectorSeries, T>::value> > { |
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44 | 45 | static PlottablesMap createPlottables(T &dataSeries, QCustomPlot &plot) |
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45 | 46 | { |
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46 | 47 | PlottablesMap result{}; |
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47 | 48 | |
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48 | 49 | // Gets the number of components of the data series |
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49 | 50 | dataSeries.lockRead(); |
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50 | 51 | auto componentCount = dataSeries.valuesData()->componentCount(); |
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51 | 52 | dataSeries.unlock(); |
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52 | 53 | |
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53 | 54 | // For each component of the data series, creates a QCPGraph to add to the plot |
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54 | 55 | for (auto i = 0; i < componentCount; ++i) { |
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55 | 56 | auto graph = plot.addGraph(); |
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56 | 57 | result.insert({i, graph}); |
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57 | 58 | } |
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58 | 59 | |
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59 | 60 | plot.replot(); |
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60 | 61 | |
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61 | 62 | return result; |
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62 | 63 | } |
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63 | 64 | }; |
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64 | 65 | |
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65 | 66 | /** |
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66 | 67 | * Specialization of PlottablesCreator for spectrograms |
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67 | 68 | * @sa SpectrogramSeries |
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68 | 69 | */ |
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69 | 70 | template <typename T> |
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70 | 71 | struct PlottablesCreator<T, |
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71 | 72 | typename std::enable_if_t<std::is_base_of<SpectrogramSeries, T>::value> > { |
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72 | 73 | static PlottablesMap createPlottables(T &dataSeries, QCustomPlot &plot) |
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73 | 74 | { |
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74 | 75 | PlottablesMap result{}; |
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75 | 76 | result.insert({0, new QCPColorMap{plot.xAxis, plot.yAxis}}); |
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76 | 77 | |
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77 | 78 | plot.replot(); |
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78 | 79 | |
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79 | 80 | return result; |
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80 | 81 | } |
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81 | 82 | }; |
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82 | 83 | |
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83 | 84 | /** |
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84 | 85 | * Struct used to update plottables, depending on the type of the data series from which to update |
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85 | 86 | * them |
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86 | 87 | * @tparam T the data series' type |
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87 | 88 | * @remarks Default implementation can't update plottables |
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88 | 89 | */ |
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89 | 90 | template <typename T, typename Enabled = void> |
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90 | 91 | struct PlottablesUpdater { |
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91 | 92 | static void setPlotYAxisRange(T &, const SqpRange &, QCustomPlot &) |
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92 | 93 | { |
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93 | 94 | qCCritical(LOG_VisualizationGraphHelper()) |
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94 | 95 | << QObject::tr("Can't set plot y-axis range: unmanaged data series type"); |
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95 | 96 | } |
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96 | 97 | |
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97 | 98 | static void updatePlottables(T &, PlottablesMap &, const SqpRange &, bool) |
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98 | 99 | { |
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99 | 100 | qCCritical(LOG_VisualizationGraphHelper()) |
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100 | 101 | << QObject::tr("Can't update plottables: unmanaged data series type"); |
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101 | 102 | } |
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102 | 103 | }; |
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103 | 104 | |
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104 | 105 | /** |
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105 | 106 | * Specialization of PlottablesUpdater for scalars and vectors |
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106 | 107 | * @sa ScalarSeries |
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107 | 108 | * @sa VectorSeries |
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108 | 109 | */ |
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109 | 110 | template <typename T> |
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110 | 111 | struct PlottablesUpdater<T, |
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111 | 112 | typename std::enable_if_t<std::is_base_of<ScalarSeries, T>::value |
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112 | 113 | or std::is_base_of<VectorSeries, T>::value> > { |
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113 | 114 | static void setPlotYAxisRange(T &dataSeries, const SqpRange &xAxisRange, QCustomPlot &plot) |
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114 | 115 | { |
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115 | 116 | auto minValue = 0., maxValue = 0.; |
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116 | 117 | |
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117 | 118 | dataSeries.lockRead(); |
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118 | 119 | auto valuesBounds = dataSeries.valuesBounds(xAxisRange.m_TStart, xAxisRange.m_TEnd); |
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119 | 120 | auto end = dataSeries.cend(); |
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120 | 121 | if (valuesBounds.first != end && valuesBounds.second != end) { |
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121 | 122 | auto rangeValue = [](const auto &value) { return std::isnan(value) ? 0. : value; }; |
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122 | 123 | |
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123 | 124 | minValue = rangeValue(valuesBounds.first->minValue()); |
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124 | 125 | maxValue = rangeValue(valuesBounds.second->maxValue()); |
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125 | 126 | } |
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126 | 127 | dataSeries.unlock(); |
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127 | 128 | |
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128 | 129 | plot.yAxis->setRange(QCPRange{minValue, maxValue}); |
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129 | 130 | } |
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130 | 131 | |
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131 | 132 | static void updatePlottables(T &dataSeries, PlottablesMap &plottables, const SqpRange &range, |
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132 | 133 | bool rescaleAxes) |
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133 | 134 | { |
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134 | 135 | |
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135 | 136 | // For each plottable to update, resets its data |
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136 | 137 | std::map<int, QSharedPointer<SqpDataContainer> > dataContainers{}; |
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137 | 138 | for (const auto &plottable : plottables) { |
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138 | 139 | if (auto graph = dynamic_cast<QCPGraph *>(plottable.second)) { |
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139 | 140 | auto dataContainer = QSharedPointer<SqpDataContainer>::create(); |
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140 | 141 | graph->setData(dataContainer); |
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141 | 142 | |
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142 | 143 | dataContainers.insert({plottable.first, dataContainer}); |
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143 | 144 | } |
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144 | 145 | } |
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145 | 146 | dataSeries.lockRead(); |
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146 | 147 | |
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147 | 148 | // - Gets the data of the series included in the current range |
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148 | 149 | // - Updates each plottable by adding, for each data item, a point that takes x-axis data |
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149 | 150 | // and value data. The correct value is retrieved according to the index of the component |
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150 | 151 | auto subDataIts = dataSeries.xAxisRange(range.m_TStart, range.m_TEnd); |
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151 | 152 | for (auto it = subDataIts.first; it != subDataIts.second; ++it) { |
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152 | 153 | for (const auto &dataContainer : dataContainers) { |
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153 | 154 | auto componentIndex = dataContainer.first; |
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154 | 155 | dataContainer.second->appendGraphData( |
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155 | 156 | QCPGraphData(it->x(), it->value(componentIndex))); |
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156 | 157 | } |
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157 | 158 | } |
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158 | 159 | |
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159 | 160 | dataSeries.unlock(); |
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160 | 161 | |
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161 | 162 | if (!plottables.empty()) { |
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162 | 163 | auto plot = plottables.begin()->second->parentPlot(); |
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163 | 164 | |
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164 | 165 | if (rescaleAxes) { |
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165 | 166 | plot->rescaleAxes(); |
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166 | 167 | } |
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167 | 168 | |
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168 | 169 | plot->replot(); |
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169 | 170 | } |
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170 | 171 | } |
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171 | 172 | }; |
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172 | 173 | |
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173 | 174 | /** |
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174 | 175 | * Specialization of PlottablesUpdater for spectrograms |
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175 | 176 | * @sa SpectrogramSeries |
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176 | 177 | */ |
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177 | 178 | template <typename T> |
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178 | 179 | struct PlottablesUpdater<T, |
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179 | 180 | typename std::enable_if_t<std::is_base_of<SpectrogramSeries, T>::value> > { |
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180 | 181 | static void setPlotYAxisRange(T &dataSeries, const SqpRange &xAxisRange, QCustomPlot &plot) |
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181 | 182 | { |
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182 | 183 | double min, max; |
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183 | 184 | std::tie(min, max) = dataSeries.yBounds(); |
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184 | 185 | |
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185 | 186 | if (!std::isnan(min) && !std::isnan(max)) { |
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186 | 187 | plot.yAxis->setRange(QCPRange{min, max}); |
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187 | 188 | } |
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188 | 189 | } |
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189 | 190 | |
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190 | 191 | static void updatePlottables(T &dataSeries, PlottablesMap &plottables, const SqpRange &range, |
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191 | 192 | bool rescaleAxes) |
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192 | 193 | { |
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193 | 194 | if (plottables.empty()) { |
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194 | 195 | qCDebug(LOG_VisualizationGraphHelper()) |
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195 | 196 | << QObject::tr("Can't update spectrogram: no colormap has been associated"); |
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196 | 197 | return; |
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197 | 198 | } |
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198 | 199 | |
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199 | 200 | // Gets the colormap to update (normally there is only one colormap) |
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200 | 201 | Q_ASSERT(plottables.size() == 1); |
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201 | 202 | auto colormap = dynamic_cast<QCPColorMap *>(plottables.at(0)); |
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202 | 203 | Q_ASSERT(colormap != nullptr); |
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203 | 204 | |
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204 | 205 | dataSeries.lockRead(); |
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205 | 206 | |
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207 | // Processing spectrogram data for display in QCustomPlot | |
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206 | 208 | auto its = dataSeries.xAxisRange(range.m_TStart, range.m_TEnd); |
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207 | /// @todo ALX: use iterators here | |
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208 | auto yAxis = dataSeries.yAxis(); | |
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209 | ||
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210 | // Gets properties of x-axis and y-axis to set size and range of the colormap | |
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211 | auto nbX = std::distance(its.first, its.second); | |
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212 | auto xMin = nbX != 0 ? its.first->x() : 0.; | |
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213 | auto xMax = nbX != 0 ? (its.second - 1)->x() : 0.; | |
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214 | ||
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215 | auto nbY = yAxis.size(); | |
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216 | auto yMin = 0., yMax = 0.; | |
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217 | if (nbY != 0) { | |
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218 | std::tie(yMin, yMax) = yAxis.bounds(); | |
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219 | } | |
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220 | 209 | |
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221 | colormap->data()->setSize(nbX, nbY); | |
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222 | colormap->data()->setRange(QCPRange{xMin, xMax}, QCPRange{yMin, yMax}); | |
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210 | // Computes logarithmic y-axis resolution for the spectrogram | |
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211 | auto yData = its.first->y(); | |
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212 | auto yResolution = DataSeriesUtils::resolution(yData.begin(), yData.end(), true); | |
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213 | ||
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214 | // Generates mesh for colormap | |
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215 | auto mesh = DataSeriesUtils::regularMesh( | |
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216 | its.first, its.second, DataSeriesUtils::Resolution{dataSeries.xResolution()}, | |
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217 | yResolution); | |
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218 | ||
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219 | dataSeries.unlock(); | |
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223 | 220 | |
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224 | // Sets values | |
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225 | auto xIndex = 0; | |
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226 | for (auto it = its.first; it != its.second; ++it, ++xIndex) { | |
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227 | for (auto yIndex = 0; yIndex < nbY; ++yIndex) { | |
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228 | auto value = it->value(yIndex); | |
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221 | colormap->data()->setSize(mesh.m_NbX, mesh.m_NbY); | |
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222 | if (!mesh.isEmpty()) { | |
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223 | colormap->data()->setRange( | |
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224 | QCPRange{mesh.m_XMin, mesh.xMax()}, | |
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225 | // y-axis range is converted to linear values | |
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226 | QCPRange{std::pow(10, mesh.m_YMin), std::pow(10, mesh.yMax())}); | |
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229 | 227 | |
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230 | colormap->data()->setCell(xIndex, yIndex, value); | |
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228 | // Sets values | |
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229 | auto index = 0; | |
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230 | for (auto it = mesh.m_Data.begin(), end = mesh.m_Data.end(); it != end; ++it, ++index) { | |
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231 | auto xIndex = index % mesh.m_NbX; | |
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232 | auto yIndex = index / mesh.m_NbX; | |
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231 | 233 | |
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232 | // Processing spectrogram data for display in QCustomPlot | |
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233 | /// For the moment, we just make the NaN values to be transparent in the colormap | |
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234 | /// @todo ALX: complete treatments (mesh generation, etc.) | |
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235 |
if (std::isnan( |
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234 | colormap->data()->setCell(xIndex, yIndex, *it); | |
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235 | ||
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236 | // Makes the NaN values to be transparent in the colormap | |
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237 | if (std::isnan(*it)) { | |
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236 | 238 | colormap->data()->setAlpha(xIndex, yIndex, 0); |
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237 | 239 | } |
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238 | 240 | } |
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239 | 241 | } |
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240 | 242 | |
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241 | dataSeries.unlock(); | |
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242 | ||
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243 | 243 | // Rescales axes |
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244 | 244 | auto plot = colormap->parentPlot(); |
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245 | 245 | |
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246 | 246 | if (rescaleAxes) { |
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247 | 247 | plot->rescaleAxes(); |
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248 | 248 | } |
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249 | 249 | |
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250 | 250 | plot->replot(); |
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251 | 251 | } |
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252 | 252 | }; |
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253 | 253 | |
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254 | 254 | /** |
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255 | 255 | * Helper used to create/update plottables |
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256 | 256 | */ |
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257 | 257 | struct IPlottablesHelper { |
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258 | 258 | virtual ~IPlottablesHelper() noexcept = default; |
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259 | 259 | virtual PlottablesMap create(QCustomPlot &plot) const = 0; |
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260 | 260 | virtual void setYAxisRange(const SqpRange &xAxisRange, QCustomPlot &plot) const = 0; |
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261 | 261 | virtual void update(PlottablesMap &plottables, const SqpRange &range, |
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262 | 262 | bool rescaleAxes = false) const = 0; |
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263 | 263 | }; |
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264 | 264 | |
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265 | 265 | /** |
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266 | 266 | * Default implementation of IPlottablesHelper, which takes data series to create/update plottables |
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267 | 267 | * @tparam T the data series' type |
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268 | 268 | */ |
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269 | 269 | template <typename T> |
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270 | 270 | struct PlottablesHelper : public IPlottablesHelper { |
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271 | 271 | explicit PlottablesHelper(T &dataSeries) : m_DataSeries{dataSeries} {} |
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272 | 272 | |
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273 | 273 | PlottablesMap create(QCustomPlot &plot) const override |
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274 | 274 | { |
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275 | 275 | return PlottablesCreator<T>::createPlottables(m_DataSeries, plot); |
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276 | 276 | } |
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277 | 277 | |
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278 | 278 | void update(PlottablesMap &plottables, const SqpRange &range, bool rescaleAxes) const override |
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279 | 279 | { |
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280 | 280 | PlottablesUpdater<T>::updatePlottables(m_DataSeries, plottables, range, rescaleAxes); |
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281 | 281 | } |
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282 | 282 | |
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283 | 283 | void setYAxisRange(const SqpRange &xAxisRange, QCustomPlot &plot) const override |
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284 | 284 | { |
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285 | 285 | return PlottablesUpdater<T>::setPlotYAxisRange(m_DataSeries, xAxisRange, plot); |
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286 | 286 | } |
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287 | 287 | |
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288 | 288 | T &m_DataSeries; |
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289 | 289 | }; |
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290 | 290 | |
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291 | 291 | /// Creates IPlottablesHelper according to a data series |
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292 | 292 | std::unique_ptr<IPlottablesHelper> createHelper(std::shared_ptr<IDataSeries> dataSeries) noexcept |
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293 | 293 | { |
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294 | 294 | if (auto scalarSeries = std::dynamic_pointer_cast<ScalarSeries>(dataSeries)) { |
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295 | 295 | return std::make_unique<PlottablesHelper<ScalarSeries> >(*scalarSeries); |
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296 | 296 | } |
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297 | 297 | else if (auto spectrogramSeries = std::dynamic_pointer_cast<SpectrogramSeries>(dataSeries)) { |
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298 | 298 | return std::make_unique<PlottablesHelper<SpectrogramSeries> >(*spectrogramSeries); |
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299 | 299 | } |
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300 | 300 | else if (auto vectorSeries = std::dynamic_pointer_cast<VectorSeries>(dataSeries)) { |
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301 | 301 | return std::make_unique<PlottablesHelper<VectorSeries> >(*vectorSeries); |
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302 | 302 | } |
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303 | 303 | else { |
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304 | 304 | return std::make_unique<PlottablesHelper<IDataSeries> >(*dataSeries); |
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305 | 305 | } |
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306 | 306 | } |
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307 | 307 | |
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308 | 308 | } // namespace |
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309 | 309 | |
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310 | 310 | PlottablesMap VisualizationGraphHelper::create(std::shared_ptr<Variable> variable, |
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311 | 311 | QCustomPlot &plot) noexcept |
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312 | 312 | { |
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313 | 313 | if (variable) { |
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314 | 314 | auto helper = createHelper(variable->dataSeries()); |
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315 | 315 | auto plottables = helper->create(plot); |
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316 | 316 | return plottables; |
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317 | 317 | } |
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318 | 318 | else { |
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319 | 319 | qCDebug(LOG_VisualizationGraphHelper()) |
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320 | 320 | << QObject::tr("Can't create graph plottables : the variable is null"); |
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321 | 321 | return PlottablesMap{}; |
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322 | 322 | } |
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323 | 323 | } |
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324 | 324 | |
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325 | 325 | void VisualizationGraphHelper::setYAxisRange(std::shared_ptr<Variable> variable, |
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326 | 326 | QCustomPlot &plot) noexcept |
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327 | 327 | { |
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328 | 328 | if (variable) { |
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329 | 329 | auto helper = createHelper(variable->dataSeries()); |
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330 | 330 | helper->setYAxisRange(variable->range(), plot); |
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331 | 331 | } |
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332 | 332 | else { |
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333 | 333 | qCDebug(LOG_VisualizationGraphHelper()) |
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334 | 334 | << QObject::tr("Can't set y-axis range of plot: the variable is null"); |
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335 | 335 | } |
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336 | 336 | } |
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337 | 337 | |
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338 | 338 | void VisualizationGraphHelper::updateData(PlottablesMap &plottables, |
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339 | 339 | std::shared_ptr<IDataSeries> dataSeries, |
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340 | 340 | const SqpRange &dateTime) |
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341 | 341 | { |
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342 | 342 | auto helper = createHelper(dataSeries); |
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343 | 343 | helper->update(plottables, dateTime); |
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344 | 344 | } |
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