mirror of
https://github.com/jkriege2/JKQtPlotter.git
synced 2024-11-16 02:25:50 +08:00
127 lines
4.4 KiB
C++
127 lines
4.4 KiB
C++
#include <QApplication>
|
|
#include "jkqtplotter/jkqtplotter.h"
|
|
#include "jkqtplottertools/jkqtptools.h"
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
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 data a vector of x-values for a simple plot and several sets of y-values for
|
|
// cosine curves stacked above each other
|
|
QVector<double> X, Y1, Y2, Y3;
|
|
const int Ndata=10; // number of plot points in each curve
|
|
for (int i=0; i<Ndata; i++) {
|
|
const double x=double(i)/double(Ndata)*2.0*M_PI;
|
|
X<<x;
|
|
Y1<<cos(x)+1.0*1.5;
|
|
Y2<<cos(x)+2.0*1.5;
|
|
Y3<<cos(x)+3.0*1.5;
|
|
}
|
|
// and copy it to the datastore
|
|
size_t columnX=ds->addCopiedColumn(X, "x");
|
|
size_t columnY1=ds->addCopiedColumn(Y1, "y1");
|
|
size_t columnY2=ds->addCopiedColumn(Y2, "y2");
|
|
size_t columnY3=ds->addCopiedColumn(Y3, "y3");
|
|
|
|
// 3 now we make several plots with different step styles, each one also contains a
|
|
// symbol plot indicating the location of the datapoints themselves
|
|
JKQTPstepHorizontalGraph* graph;
|
|
JKQTPxyLineGraph* graphL;
|
|
|
|
//-- JKQTPstepLeft ----------------------------------------------------------------------------------------
|
|
graph=new JKQTPstepHorizontalGraph(&plot);
|
|
graphL=new JKQTPxyLineGraph(&plot);
|
|
|
|
// set data for both graphs
|
|
graph->set_xColumn(columnX); graphL->set_xColumn(graph->get_xColumn());
|
|
graph->set_yColumn(columnY1); graphL->set_yColumn(graph->get_yColumn());
|
|
|
|
// set step style
|
|
graph->set_stepType(JKQTPstepLeft);
|
|
graph->set_lineWidth(1);
|
|
graph->set_fillCurve(true);
|
|
graph->set_drawLine(true);
|
|
graph->set_title("JKQTPstepLeft, filled");
|
|
|
|
// set symbol + pen style and color for the added circles, copy color
|
|
graphL->set_symbol(JKQTPgraphSymbols::JKQTPcircle);
|
|
graphL->set_drawLine(false);
|
|
graphL->set_symbolSize(9);
|
|
graphL->set_symbolWidth(1);
|
|
graphL->set_color(graph->get_color());
|
|
|
|
// add the graphs to the plot, so it is actually displayed
|
|
plot.addGraph(graph);
|
|
plot.addGraph(graphL);
|
|
|
|
|
|
//-- JKQTPstepCenter ----------------------------------------------------------------------------------------
|
|
graph=new JKQTPstepHorizontalGraph(&plot);
|
|
graphL=new JKQTPxyLineGraph(&plot);
|
|
|
|
// set data for both graphs
|
|
graph->set_xColumn(columnX); graphL->set_xColumn(graph->get_xColumn());
|
|
graph->set_yColumn(columnY2); graphL->set_yColumn(graph->get_yColumn());
|
|
|
|
// set step style
|
|
graph->set_stepType(JKQTPstepCenter);
|
|
graph->set_lineWidth(1);
|
|
graph->set_fillCurve(false);
|
|
graph->set_drawLine(true);
|
|
graph->set_title("JKQTPstepCenter");
|
|
|
|
// set symbol + pen style and color for the added circles, copy color
|
|
graphL->set_symbol(JKQTPgraphSymbols::JKQTPcircle);
|
|
graphL->set_drawLine(false);
|
|
graphL->set_symbolSize(9);
|
|
graphL->set_symbolWidth(1);
|
|
graphL->set_color(graph->get_color());
|
|
|
|
// add the graphs to the plot, so it is actually displayed
|
|
plot.addGraph(graph);
|
|
plot.addGraph(graphL);
|
|
|
|
|
|
//-- JKQTPstepRight ----------------------------------------------------------------------------------------
|
|
graph=new JKQTPstepHorizontalGraph(&plot);
|
|
graphL=new JKQTPxyLineGraph(&plot);
|
|
|
|
// set data for both graphs
|
|
graph->set_xColumn(columnX); graphL->set_xColumn(graph->get_xColumn());
|
|
graph->set_yColumn(columnY3); graphL->set_yColumn(graph->get_yColumn());
|
|
|
|
// set step style
|
|
graph->set_stepType(JKQTPstepRight);
|
|
graph->set_lineWidth(1);
|
|
graph->set_fillCurve(false);
|
|
graph->set_drawLine(true);
|
|
graph->set_title("JKQTPstepRight");
|
|
|
|
// set symbol + pen style and color for the added circles, copy color
|
|
graphL->set_symbol(JKQTPgraphSymbols::JKQTPcircle);
|
|
graphL->set_drawLine(false);
|
|
graphL->set_symbolSize(9);
|
|
graphL->set_symbolWidth(1);
|
|
graphL->set_color(graph->get_color());
|
|
|
|
// add the graphs to the plot, so it is actually displayed
|
|
plot.addGraph(graph);
|
|
plot.addGraph(graphL);
|
|
|
|
|
|
|
|
|
|
// 4. scale plot manually
|
|
plot.setXY(-0.5, X.last()+0.5, -0.5, 7);
|
|
|
|
// 5. show plotter and make it a decent size
|
|
plot.show();
|
|
plot.resize(800,600);
|
|
|
|
return app.exec();
|
|
}
|