mirror of
https://github.com/jkriege2/JKQtPlotter.git
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f2004a6f66
IMPROVED/REWORKED: legend/key positioning as combination of 3 values, e.g. \c JKQTPKeyOutsideTop|JKQTPKeyTop|JKQTPKeyRight or \c JKQTPKeyInside|JKQTPKeyTopJKQTPKeyRight
186 lines
7.4 KiB
C++
186 lines
7.4 KiB
C++
/** \example paramscatterplot.cpp
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* JKQTPlotter: Examples: Scatter Graph with Parametrized Symbols/Colors
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*
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* \ref JKQTPlotterParamScatter
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*/
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#include "jkqtpexampleapplication.h"
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#include <QApplication>
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#include "jkqtplotter/jkqtplotter.h"
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#include "jkqtplotter/graphs/jkqtpscatter.h"
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int main(int argc, char* argv[])
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{
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JKQTPAppSettingController highDPIController(argc, argv);
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JKQTPExampleApplication app(argc, argv);
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// 1. create a plotter window and get a pointer to the internal datastore (for convenience)
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JKQTPlotter plot;
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JKQTPDatastore* ds=plot.getDatastore();
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// 2. now we create a vector of x- and y-values for a simple plot (a sine curve)
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// in addition, a vector P will hold values that will be mapped onto different plot styles
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// and a vector C that will be mapped onto different colors
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QVector<double> X, Y1, Y2, Y3, Y4, Y5, Y6, Y7, P, C, S, RGB, LW;
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const int Ndata=10; // number of plot points in each curve
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for (int i=0; i<Ndata; i++) {
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const double x=double(i)/double(Ndata)*2.0*JKQTPSTATISTICS_PI;
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X<<x;
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Y1<<1.5+sin(x);
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Y2<<3.5+sin(x);
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Y3<<5.5+sin(x);
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Y4<<7.5+sin(x);
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Y5<<9.5+sin(x);
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Y6<<11.5+sin(x);
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Y7<<12.5+sin(x);
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P<<(i+2);
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C<<x;
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S<<5*(i+1);
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LW<<(i+1)*1.5;
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RGB<<double(qRgb(double(i)/double(Ndata)*255,0,255-double(i)/double(Ndata)*255));
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}
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// and copy it to the datastore
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size_t columnX=ds->addCopiedColumn(X, "x");
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size_t columnY1=ds->addCopiedColumn(Y1, "y1");
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size_t columnY2=ds->addCopiedColumn(Y2, "y2");
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size_t columnY3=ds->addCopiedColumn(Y3, "y3");
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size_t columnY4=ds->addCopiedColumn(Y4, "y4");
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size_t columnY5=ds->addCopiedColumn(Y5, "y5");
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size_t columnY6=ds->addCopiedColumn(Y6, "y6");
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size_t columnY7=ds->addCopiedColumn(Y7, "y7");
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size_t columnP=ds->addCopiedColumn(P, "point_style");
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size_t columnC=ds->addCopiedColumn(C, "color_value");
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size_t columnS=ds->addCopiedColumn(S, "size");
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size_t columnLW=ds->addCopiedColumn(LW, "linewidth");
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size_t columnRGB=ds->addCopiedColumn(RGB, "rgb");
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// 3. now we make several graphs. In each one, another property of the graph is controlled by
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// a datacolumn
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// 3.1 for graph1, we use dataset X/Y1
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// and the symbol type is choose according to the contents of column P:
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JKQTPXYParametrizedScatterGraph* graph1=new JKQTPXYParametrizedScatterGraph(&plot);
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graph1->setXColumn(columnX);
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graph1->setYColumn(columnY1);
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graph1->setSymbolColumn(columnP);
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graph1->setDrawLine(true);
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graph1->setColor(QColor("blueviolet"));
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graph1->setTitle("1: symbol type");
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/*graph1->setSymbolColumnFunctor([](double x, double y, double sym) -> JKQTPGraphSymbols {
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if (sym<Ndata/2) {
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return JKQTPGraphSymbols::JKQTPCircle;
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} else if (sym>Ndata/2) {
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return JKQTPGraphSymbols::JKQTPFilledCircle;
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} else {
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return JKQTPGraphSymbols::JKQTPPlus;
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}
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});*/
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/*QMap<double, JKQTPGraphSymbols> mapped;
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mapped[0]=JKQTPGraphSymbols::JKQTPCircle;
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mapped[5]=JKQTPGraphSymbols::JKQTPFilledCircle;
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mapped[10]=JKQTPGraphSymbols::JKQTPPlus;
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graph1->setMappedSymbolColumnFunctor(mapped);*/
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plot.addGraph(graph1);
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// 3.2 for graph2, we use dataset X/Y2
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// and the symbol color is choose according to the contents of column C
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// and the actual colors are chose from palette JKQTPMathImageRYGB:
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JKQTPXYParametrizedScatterGraph* graph2=new JKQTPXYParametrizedScatterGraph(&plot);
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graph2->setXColumn(columnX);
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graph2->setYColumn(columnY2);
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graph2->setColorColumn(columnC);
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graph2->setColorPalette(JKQTPMathImageRYGB);
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graph2->setSymbolType(JKQTPFilledRect);
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graph2->setDrawLine(true);
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graph2->setTitle("2: color");
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graph2->getColorBarRightAxis()->setAxisLabel("color scale for graph2");
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plot.addGraph(graph2);
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// 3.3 for graph3, we use dataset X/Y3
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// and the symbol size is choose according to the contents of column S:
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JKQTPXYParametrizedScatterGraph* graph3=new JKQTPXYParametrizedScatterGraph(&plot);
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graph3->setXColumn(columnX);
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graph3->setYColumn(columnY3);
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graph3->setSizeColumn(columnS);
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graph3->setSymbolType(JKQTPFilledCircle);
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graph3->setDrawLine(true);
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graph3->setTitle("3: symbol size");
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plot.addGraph(graph3);
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// 3.4 for graph4, we use X/Y4
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// and the symbol color is choose according to the contents of column RGB,
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// which directly contains the RGB values, as set with qRgb():
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JKQTPXYParametrizedScatterGraph* graph4=new JKQTPXYParametrizedScatterGraph(&plot);
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graph4->setXColumn(columnX);
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graph4->setYColumn(columnY4);
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graph4->setColorColumn(columnRGB);
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graph4->setColorColumnContainsRGB(true);
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graph4->setDrawLine(true);
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graph4->setSymbolType(JKQTPFilledDownTriangle);
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graph4->setTitle("4: RGB-color");
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plot.addGraph(graph4);
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// 3.5 for graph2, we use dataset X/Y5
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// and the symbol color and size are choose according to the contents
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// of columns C and S respectively.
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// The actual colors are chose from palette JKQTPMathImageBLUEYELLOW:
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JKQTPXYParametrizedScatterGraph* graph5=new JKQTPXYParametrizedScatterGraph(&plot);
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graph5->setXColumn(columnX);
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graph5->setYColumn(columnY5);
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graph5->setColorColumn(columnC);
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graph5->setSizeColumn(columnS);
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graph5->setColorPalette(JKQTPMathImageBLUEYELLOW);
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graph5->setDrawLine(true);
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graph5->setTitle("5: color+size");
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graph5->getColorBarRightAxis()->setAxisLabel("color scale for graph5");
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plot.addGraph(graph5);
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// 3.6 for graph2, we use dataset X/Y6
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// and the line width is set by column LW:
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JKQTPXYParametrizedScatterGraph* graph6=new JKQTPXYParametrizedScatterGraph(&plot);
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graph6->setXColumn(columnX);
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graph6->setYColumn(columnY6);
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graph6->setLinewidthColumn(columnLW);
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graph6->setDrawLine(true);
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graph6->setSymbolType(JKQTPNoSymbol);
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graph6->setTitle("6: line width");
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/*graph6->setLinewidthColumnFunctor([](double x, double y, double w) {
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return fabs(sin(w/3.0)*25.0);
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});*/
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plot.addGraph(graph6);
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// 3.7 for graph2, we use dataset X/Y7
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// and the line width is set by column LW and the color from palette JKQTPMathImageBLUEYELLOW via column C:
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JKQTPXYParametrizedScatterGraph* graph7=new JKQTPXYParametrizedScatterGraph(&plot);
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graph7->setXColumn(columnX);
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graph7->setYColumn(columnY7);
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graph7->setLinewidthColumn(columnLW);
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graph7->setDrawLine(true);
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graph7->setColorColumn(columnC);
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graph7->setColorPalette(JKQTPMathImageBLUEYELLOW);
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graph7->setSymbolType(JKQTPNoSymbol);
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graph7->setColorBarRightVisible(false);
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graph7->setColorBarTopVisible(false);
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graph7->setTitle("7: color+line width");
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plot.addGraph(graph7);
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// 4. autoscale the plot so the graph is contained and format the coordinate system and key
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plot.getPlotter()->setKeyPosition(JKQTPKeyOutsideBottomLeft);
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plot.getMainKey()->setLayout(JKQTPKeyLayoutOneRow);
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plot.getXAxis()->setAxisLabel("x-axis");
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plot.getYAxis()->setAxisLabel("y-axis");
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plot.getXAxis()->setDrawGrid(false);
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plot.getYAxis()->setDrawGrid(false);
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plot.zoomToFit();
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// 5. show plotter and make it a decent size
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plot.show();
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plot.resize(1000/plot.devicePixelRatioF(),600/plot.devicePixelRatioF());
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return app.exec();
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}
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