mirror of
https://github.com/jkriege2/JKQtPlotter.git
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195 lines
8.4 KiB
C++
195 lines
8.4 KiB
C++
/** \example second_axis.cpp
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* Shows how to draw Barcharts with different colors above and below the baseline in a JKQTPlotter
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*
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* \ref JKQTPlotterSecondaryAxes
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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/jkqtplines.h"
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#include "jkqtpexampleapplication.h"
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void exampleSecondYAxis(JKQTPlotter& plot, const QString& title)
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{
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// 1. create a plotter window and get a pointer to the internal datastore (for convenience)
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JKQTPDatastore* ds=plot.getDatastore();
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// 2. now we create two columns for key and value
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size_t columnX=ds->addLinearColumn(40, 0,10,"x");
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size_t columnY1=ds->addColumnCalculatedFromColumn(columnX, [](double x) { return x; }, "y1");
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size_t columnY2=ds->addColumnCalculatedFromColumn(columnX, [](double x) { return cos(x); }, "y2");
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size_t columnY3=ds->addColumnCalculatedFromColumn(columnX, [](double x) { return x*x; }, "y3");
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size_t columnY4=ds->addColumnCalculatedFromColumn(columnX, [](double x) { return sqrt(x); }, "y3");
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// 3. create a second y-axis and set its formating options, so it only draws an axis on the right
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auto yAxisRef2=plot.getPlotter()->addSecondaryYAxis(new JKQTPVerticalAxis(plot.getPlotter(), JKQTPPrimaryAxis));
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plot.getYAxis(yAxisRef2)->setDrawGrid(false);
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plot.getYAxis(yAxisRef2)->setDrawMode1(JKQTPCADMnone);
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plot.getYAxis(yAxisRef2)->setDrawMode2(JKQTPCADMcomplete);
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plot.getYAxis(yAxisRef2)->setDrawMode0(JKQTPCADMnone);
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plot.getYAxis(yAxisRef2)->setShowZeroAxis(false);
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// ... and create third y-axis
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auto yAxisRef3=plot.getPlotter()->addSecondaryYAxis(new JKQTPVerticalAxis(plot.getPlotter(), JKQTPPrimaryAxis));
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plot.getYAxis(yAxisRef3)->setDrawGrid(false);
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plot.getYAxis(yAxisRef3)->setDrawMode1(JKQTPCADMnone);
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plot.getYAxis(yAxisRef3)->setDrawMode2(JKQTPCADMcomplete);
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plot.getYAxis(yAxisRef3)->setDrawMode0(JKQTPCADMnone);
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plot.getYAxis(yAxisRef3)->setShowZeroAxis(false);
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// ... and create fourth y-axis
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auto yAxisRef4=plot.getPlotter()->addSecondaryYAxis(new JKQTPVerticalAxis(plot.getPlotter(), JKQTPPrimaryAxis));
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plot.getYAxis(yAxisRef4)->setDrawGrid(false);
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plot.getYAxis(yAxisRef4)->setDrawMode1(JKQTPCADMcomplete);
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plot.getYAxis(yAxisRef4)->setDrawMode2(JKQTPCADMnone);
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plot.getYAxis(yAxisRef4)->setDrawMode0(JKQTPCADMnone);
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plot.getYAxis(yAxisRef4)->setShowZeroAxis(false);
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// ... reformat the major y-axis, so it does not draw on the right and thus the secondary axis yAxisRef2 replaces it there
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// if this step is omitted, the secondary axes stack on the right of the primary.
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plot.getYAxis()->setDrawMode2(JKQTPCADMnone);
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plot.getYAxis()->setAxisLabel("graph1");
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// 3. create graph in the plot, which plots the dataset:
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// 3.1 the first graph uses the default (primary) x/y-axes
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JKQTPXYLineGraph* graph1=new JKQTPXYLineGraph(&plot);
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graph1->setKeyColumn(columnX);
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graph1->setValueColumn(columnY1);
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plot.addGraph(graph1);
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plot.getYAxis()->setColor(graph1->getLineColor());
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// 3.2 the second graph uses the default (primary) x-axis, but the secondary axis yAxisRef2 as y-axis
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JKQTPXYLineGraph* graph2=new JKQTPXYLineGraph(&plot);
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graph2->setKeyColumn(columnX);
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graph2->setValueColumn(columnY2);
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plot.addGraph(graph2);
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// tell graph2 to use this axis
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graph2->setYAxis(yAxisRef2);
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// set axis color to match graph2's color
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plot.getYAxis(yAxisRef2)->setColor(graph2->getLineColor());
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// set axis label
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plot.getYAxis(yAxisRef2)->setAxisLabel("graph2");
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// 3.3 the third graph uses the default (primary) x-axis, but the secondary axis yAxisRef3 as y-axis
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JKQTPXYLineGraph* graph3=new JKQTPXYLineGraph(&plot);
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graph3->setKeyColumn(columnX);
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graph3->setValueColumn(columnY3);
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plot.addGraph(graph3);
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plot.getYAxis(yAxisRef3)->setColor(graph3->getLineColor());
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plot.getYAxis(yAxisRef3)->setAxisLabel("graph3");
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graph3->setYAxis(yAxisRef3);
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// 3.4 the fourth graph uses the default (primary) x-axis, but the ternary axis yAxisRef4 as y-axis
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JKQTPXYLineGraph* graph4=new JKQTPXYLineGraph(&plot);
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graph4->setKeyColumn(columnX);
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graph4->setValueColumn(columnY4);
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plot.addGraph(graph3);
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plot.getYAxis(yAxisRef4)->setColor(graph4->getLineColor());
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plot.getYAxis(yAxisRef4)->setAxisLabel("graph4");
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graph4->setYAxis(yAxisRef4);
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// 4. autoscale the plot so the graph is contained
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// This auto-scales all axes using the graphs (and their data) as assigned to the axes!
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// i.e. all 3 graphs for x-axis,
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// graph1 for primary y-axis,
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// graph2 for secondary axis yAxisRef2
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// graph3 for secondary axis yAxisRef3
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plot.zoomToFit();
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// 5. show plotter and make it a decent size
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plot.setWindowTitle(title);
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plot.show();
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plot.resize(500,400);
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}
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void exampleSecondXAxis(JKQTPlotter& plot, const QString& title)
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{
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// same as above, but with swapped x- and y-axes!!!
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JKQTPDatastore* ds=plot.getDatastore();
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size_t columnY=ds->addLinearColumn(30, 0,12,"y");
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size_t columnX1=ds->addColumnCalculatedFromColumn(columnY, [](double x) { return x; }, "x1");
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size_t columnX2=ds->addColumnCalculatedFromColumn(columnY, [](double x) { return cos(x); }, "x2");
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size_t columnX3=ds->addColumnCalculatedFromColumn(columnY, [](double x) { return x*x; }, "x3");
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size_t columnX4=ds->addColumnCalculatedFromColumn(columnY, [](double x) { return sqrt(x); }, "x4");
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JKQTPXYLineGraph* graph1=new JKQTPXYLineGraph(&plot);
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graph1->setXColumn(columnX1);
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graph1->setYColumn(columnY);
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plot.addGraph(graph1);
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JKQTPXYLineGraph* graph2=new JKQTPXYLineGraph(&plot);
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graph2->setXColumn(columnX2);
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graph2->setYColumn(columnY);
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plot.addGraph(graph2);
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JKQTPXYLineGraph* graph3=new JKQTPXYLineGraph(&plot);
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graph3->setXColumn(columnX3);
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graph3->setYColumn(columnY);
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plot.addGraph(graph3);
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JKQTPXYLineGraph* graph4=new JKQTPXYLineGraph(&plot);
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graph4->setXColumn(columnX4);
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graph4->setYColumn(columnY);
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plot.addGraph(graph4);
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plot.getXAxis()->setDrawMode2(JKQTPCADMLineTicksTickLabels);
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plot.getXAxis()->setColor(graph1->getLineColor());
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plot.getXAxis()->setAxisLabel("graph1");
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auto xAxisRef2=plot.getPlotter()->addSecondaryXAxis(new JKQTPHorizontalAxis(plot.getPlotter(), JKQTPPrimaryAxis));
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plot.getXAxis(xAxisRef2)->setDrawGrid(false);
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plot.getXAxis(xAxisRef2)->setDrawMode1(JKQTPCADMnone);
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plot.getXAxis(xAxisRef2)->setDrawMode2(JKQTPCADMcomplete);
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plot.getXAxis(xAxisRef2)->setDrawMode0(JKQTPCADMnone);
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plot.getXAxis(xAxisRef2)->setShowZeroAxis(false);
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plot.getXAxis(xAxisRef2)->setColor(graph2->getLineColor());
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plot.getXAxis(xAxisRef2)->setAxisLabel("graph2");
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graph2->setXAxis(xAxisRef2);
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auto xAxisRef3=plot.getPlotter()->addSecondaryXAxis(new JKQTPHorizontalAxis(plot.getPlotter(), JKQTPPrimaryAxis));
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plot.getXAxis(xAxisRef3)->setDrawGrid(false);
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plot.getXAxis(xAxisRef3)->setDrawMode1(JKQTPCADMnone);
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plot.getXAxis(xAxisRef3)->setDrawMode2(JKQTPCADMcomplete);
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plot.getXAxis(xAxisRef3)->setDrawMode0(JKQTPCADMnone);
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plot.getXAxis(xAxisRef3)->setShowZeroAxis(false);
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plot.getXAxis(xAxisRef3)->setColor(graph3->getLineColor());
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plot.getXAxis(xAxisRef3)->setAxisLabel("graph3");
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graph3->setXAxis(xAxisRef3);
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auto xAxisRef4=plot.getPlotter()->addSecondaryXAxis(new JKQTPHorizontalAxis(plot.getPlotter(), JKQTPPrimaryAxis));
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plot.getXAxis(xAxisRef4)->setDrawGrid(false);
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plot.getXAxis(xAxisRef4)->setDrawMode1(JKQTPCADMcomplete);
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plot.getXAxis(xAxisRef4)->setDrawMode2(JKQTPCADMnone);
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plot.getXAxis(xAxisRef4)->setDrawMode0(JKQTPCADMnone);
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plot.getXAxis(xAxisRef4)->setShowZeroAxis(false);
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plot.getXAxis(xAxisRef4)->setColor(graph4->getLineColor());
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plot.getXAxis(xAxisRef4)->setAxisLabel("graph4");
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graph4->setXAxis(xAxisRef4);
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plot.zoomToFit();
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plot.setWindowTitle(title);
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plot.show();
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plot.resize(400,500);
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}
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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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JKQTPlotter plotsecondY;
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//plotsecondY.getPlotter()->enableDebugShowRegionBoxes(true);
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exampleSecondYAxis(plotsecondY, "1: Second Y-Axis");
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JKQTPlotter plotsecondX;
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//plotsecondX.getPlotter()->enableDebugShowRegionBoxes(true);
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exampleSecondXAxis(plotsecondX, "2: Second X-Axis");
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return app.exec();
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}
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