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1 | #ifndef SCIQLOP_COLORUTILS_H | |||
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2 | #define SCIQLOP_COLORUTILS_H | |||
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3 | ||||
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4 | #include <vector> | |||
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5 | ||||
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6 | class QColor; | |||
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7 | ||||
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8 | /** | |||
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9 | * Utility class with methods for colors | |||
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10 | */ | |||
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11 | struct ColorUtils { | |||
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12 | /// Generates a color scale from min / max values and a number of colors. | |||
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13 | /// The algorithm uses the HSV color model to generate color variations (see | |||
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14 | /// http://doc.qt.io/qt-4.8/qcolor.html#the-hsv-color-model) | |||
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15 | static std::vector<QColor> colors(const QColor &minColor, const QColor &maxColor, | |||
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16 | int nbColors) noexcept; | |||
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17 | }; | |||
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18 | ||||
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19 | #endif // SCIQLOP_COLORUTILS_H | |||
| @@ -0,0 +1,29 | |||||
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1 | #include "Common/ColorUtils.h" | |||
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2 | ||||
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3 | #include <QtGui/QColor> | |||
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4 | ||||
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5 | std::vector<QColor> ColorUtils::colors(const QColor &minColor, const QColor &maxColor, | |||
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6 | int nbColors) noexcept | |||
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7 | { | |||
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8 | auto result = std::vector<QColor>{}; | |||
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9 | ||||
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10 | if (nbColors == 1) { | |||
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11 | result.push_back(minColor); | |||
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12 | } | |||
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13 | else if (nbColors > 0) { | |||
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14 | const auto nbSteps = static_cast<double>(nbColors - 1); | |||
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15 | ||||
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16 | const auto colorHStep = (maxColor.hue() - minColor.hue()) / nbSteps; | |||
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17 | const auto colorSStep = (maxColor.saturation() - minColor.saturation()) / nbSteps; | |||
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18 | const auto colorVStep = (maxColor.value() - minColor.value()) / nbSteps; | |||
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19 | const auto colorAStep = (maxColor.alpha() - minColor.alpha()) / nbSteps; | |||
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20 | ||||
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21 | for (auto i = 0; i < nbColors; ++i) { | |||
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22 | result.push_back(QColor::fromHsv( | |||
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23 | minColor.hue() + i * colorHStep, minColor.saturation() + i * colorSStep, | |||
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24 | minColor.value() + i * colorVStep, minColor.alpha() + i * colorAStep)); | |||
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25 | } | |||
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26 | } | |||
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27 | ||||
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28 | return result; | |||
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29 | } | |||
| @@ -1,6 +1,8 | |||||
| 1 | #include "Visualization/VisualizationGraphHelper.h" |
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1 | #include "Visualization/VisualizationGraphHelper.h" | |
| 2 | #include "Visualization/qcustomplot.h" |
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2 | #include "Visualization/qcustomplot.h" | |
| 3 |
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3 | |||
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4 | #include <Common/ColorUtils.h> | |||
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5 | ||||
| 4 | #include <Data/ScalarSeries.h> |
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6 | #include <Data/ScalarSeries.h> | |
| 5 | #include <Data/VectorSeries.h> |
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7 | #include <Data/VectorSeries.h> | |
| 6 |
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8 | |||
| @@ -84,9 +86,12 struct PlottablesCreator<T, | |||||
| 84 | // Gets the number of components of the data series |
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86 | // Gets the number of components of the data series | |
| 85 | auto componentCount = dataSeries.valuesData()->componentCount(); |
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87 | auto componentCount = dataSeries.valuesData()->componentCount(); | |
| 86 |
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88 | |||
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89 | auto colors = ColorUtils::colors(Qt::blue, Qt::red, componentCount); | |||
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90 | ||||
| 87 | // For each component of the data series, creates a QCPGraph to add to the plot |
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91 | // For each component of the data series, creates a QCPGraph to add to the plot | |
| 88 | for (auto i = 0; i < componentCount; ++i) { |
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92 | for (auto i = 0; i < componentCount; ++i) { | |
| 89 | auto graph = plot.addGraph(); |
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93 | auto graph = plot.addGraph(); | |
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94 | graph->setPen(QPen{colors.at(i)}); | |||
| 90 |
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95 | |||
| 91 | result.insert({i, graph}); |
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96 | result.insert({i, graph}); | |
| 92 | } |
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97 | } | |
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