| xuyue0401 |
2014-08-21 14:49 |
QcustomPlot
大家好，我使用QcustomPlot画图
程序都是例子上的，但是运行的图就是不对，为啥呢，请高手帮忙。
QVector<double> x(101), y(101); // initialize with entries 0..100 for (int i=0; i<101;++i) { x = i/50.0 - 1; // x goes from -1 to 1 y = x*x; // let's plot a quadratic function } // create graph and assign data to it: customPlot->addGraph(); //customPlot->graph(0)->setData(x, y); // give the axes some labels: customPlot->xAxis->setLabel("X"); customPlot->yAxis->setLabel("Y"); // set axes ranges, so we see all data: customPlot->xAxis->setRange(-1, 1); customPlot->yAxis->setRange(0, 1);
ui->customPlot->replot();
[attachment=12505]
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