/** \example paramscatterplot.cpp * JKQTPlotter: Examples: Scatter Graph with Parametrized Symbols/Colors * * \ref JKQTPlotterParamScatter */ #include #include "jkqtplotter/jkqtplotter.h" #include "jkqtplotter/graphs/jkqtpscatter.h" int main(int argc, char* argv[]) { #if QT_VERSION >= 0x050600 QApplication::setAttribute(Qt::AA_EnableHighDpiScaling); // DPI support QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps); //HiDPI pixmaps #endif QApplication app(argc, argv); // 1. create a plotter window and get a pointer to the internal datastore (for convenience) JKQTPlotter plot; JKQTPDatastore* ds=plot.getDatastore(); // 2. now we create a vector of x- and y-values for a simple plot (a sine curve) // in addition, a vector P will hold values that will be mapped onto different plot styles // and a vector C that will be mapped onto different colors QVector X, Y1, Y2, Y3, Y4, Y5, Y6, Y7, P, C, S, RGB, LW; const int Ndata=10; // number of plot points in each curve for (int i=0; iaddCopiedColumn(X, "x"); size_t columnY1=ds->addCopiedColumn(Y1, "y1"); size_t columnY2=ds->addCopiedColumn(Y2, "y2"); size_t columnY3=ds->addCopiedColumn(Y3, "y3"); size_t columnY4=ds->addCopiedColumn(Y4, "y4"); size_t columnY5=ds->addCopiedColumn(Y5, "y5"); size_t columnY6=ds->addCopiedColumn(Y6, "y6"); size_t columnY7=ds->addCopiedColumn(Y7, "y7"); size_t columnP=ds->addCopiedColumn(P, "point_style"); size_t columnC=ds->addCopiedColumn(C, "color_value"); size_t columnS=ds->addCopiedColumn(S, "size"); size_t columnLW=ds->addCopiedColumn(LW, "linewidth"); size_t columnRGB=ds->addCopiedColumn(RGB, "rgb"); // 3. now we make several graphs. In each one, another property of the graph is controlled by // a datacolumn // 3.1 for graph1, we use dataset X/Y1 // and the symbol type is choose according to the contents of column P: JKQTPXYParametrizedScatterGraph* graph1=new JKQTPXYParametrizedScatterGraph(&plot); graph1->setXColumn(columnX); graph1->setYColumn(columnY1); graph1->setSymbolColumn(columnP); graph1->setDrawLine(true); graph1->setColor(QColor("blueviolet")); graph1->setTitle("1: symbol type"); /*graph1->setSymbolColumnFunctor([](double x, double y, double sym) -> JKQTPGraphSymbols { if (symNdata/2) { return JKQTPGraphSymbols::JKQTPFilledCircle; } else { return JKQTPGraphSymbols::JKQTPPlus; } });*/ /*QMap mapped; mapped[0]=JKQTPGraphSymbols::JKQTPCircle; mapped[5]=JKQTPGraphSymbols::JKQTPFilledCircle; mapped[10]=JKQTPGraphSymbols::JKQTPPlus; graph1->setMappedSymbolColumnFunctor(mapped);*/ plot.addGraph(graph1); // 3.2 for graph2, we use dataset X/Y2 // and the symbol color is choose according to the contents of column C // and the actual colors are chose from palette JKQTPMathImageRYGB: JKQTPXYParametrizedScatterGraph* graph2=new JKQTPXYParametrizedScatterGraph(&plot); graph2->setXColumn(columnX); graph2->setYColumn(columnY2); graph2->setColorColumn(columnC); graph2->setColorPalette(JKQTPMathImageRYGB); graph2->setSymbolType(JKQTPFilledRect); graph2->setDrawLine(true); graph2->setTitle("2: color"); graph2->getColorBarRightAxis()->setAxisLabel("color scale for graph2"); plot.addGraph(graph2); // 3.3 for graph3, we use dataset X/Y3 // and the symbol size is choose according to the contents of column S: JKQTPXYParametrizedScatterGraph* graph3=new JKQTPXYParametrizedScatterGraph(&plot); graph3->setXColumn(columnX); graph3->setYColumn(columnY3); graph3->setSizeColumn(columnS); graph3->setSymbolType(JKQTPFilledCircle); graph3->setDrawLine(true); graph3->setTitle("3: symbol size"); plot.addGraph(graph3); // 3.4 for graph4, we use X/Y4 // and the symbol color is choose according to the contents of column RGB, // which directly contains the RGB values, as set with qRgb(): JKQTPXYParametrizedScatterGraph* graph4=new JKQTPXYParametrizedScatterGraph(&plot); graph4->setXColumn(columnX); graph4->setYColumn(columnY4); graph4->setColorColumn(columnRGB); graph4->setColorColumnContainsRGB(true); graph4->setDrawLine(true); graph4->setSymbolType(JKQTPFilledDownTriangle); graph4->setTitle("4: RGB-color"); plot.addGraph(graph4); // 3.5 for graph2, we use dataset X/Y5 // and the symbol color and size are choose according to the contents // of columns C and S respectively. // The actual colors are chose from palette JKQTPMathImageBLUEYELLOW: JKQTPXYParametrizedScatterGraph* graph5=new JKQTPXYParametrizedScatterGraph(&plot); graph5->setXColumn(columnX); graph5->setYColumn(columnY5); graph5->setColorColumn(columnC); graph5->setSizeColumn(columnS); graph5->setColorPalette(JKQTPMathImageBLUEYELLOW); graph5->setDrawLine(true); graph5->setTitle("5: color+size"); graph5->getColorBarRightAxis()->setAxisLabel("color scale for graph5"); plot.addGraph(graph5); // 3.6 for graph2, we use dataset X/Y6 // and the line width is set by column LW: JKQTPXYParametrizedScatterGraph* graph6=new JKQTPXYParametrizedScatterGraph(&plot); graph6->setXColumn(columnX); graph6->setYColumn(columnY6); graph6->setLinewidthColumn(columnLW); graph6->setDrawLine(true); graph6->setSymbolType(JKQTPNoSymbol); graph6->setTitle("6: line width"); /*graph6->setLinewidthColumnFunctor([](double x, double y, double w) { return fabs(sin(w/3.0)*25.0); });*/ plot.addGraph(graph6); // 3.7 for graph2, we use dataset X/Y7 // and the line width is set by column LW and the color from palette JKQTPMathImageBLUEYELLOW via column C: JKQTPXYParametrizedScatterGraph* graph7=new JKQTPXYParametrizedScatterGraph(&plot); graph7->setXColumn(columnX); graph7->setYColumn(columnY7); graph7->setLinewidthColumn(columnLW); graph7->setDrawLine(true); graph7->setColorColumn(columnC); graph7->setColorPalette(JKQTPMathImageBLUEYELLOW); graph7->setSymbolType(JKQTPNoSymbol); graph7->setColorBarRightVisible(false); graph7->setColorBarTopVisible(false); graph7->setTitle("7: color+line width"); plot.addGraph(graph7); // 4. autoscale the plot so the graph is contained and format the coordinate system and key plot.getPlotter()->setKeyPosition(JKQTPKeyOutsideBottomLeft); plot.getPlotter()->setKeyLayout(JKQTPKeyLayoutOneRow); plot.getXAxis()->setAxisLabel("x-axis"); plot.getYAxis()->setAxisLabel("y-axis"); plot.getXAxis()->setDrawGrid(false); plot.getYAxis()->setDrawGrid(false); plot.zoomToFit(); // 5. show plotter and make it a decent size plot.show(); plot.resize(800,600); return app.exec(); }