- ui->histogram->clearGraphs();
- ui->histogram->addGraph();
- ui->histogram->graph(0)->setData(x_vec, r_vec);
- ui->histogram->graph(0)->setPen(QPen(Qt::red));
- ui->histogram->graph(0)->setBrush(QBrush(QColor(255, 127, 127, 80)));
- ui->histogram->addGraph();
- ui->histogram->graph(1)->setData(x_vec, g_vec);
- ui->histogram->graph(1)->setPen(QPen(Qt::green));
- ui->histogram->graph(1)->setBrush(QBrush(QColor(127, 255, 127, 80)));
- ui->histogram->addGraph();
- ui->histogram->graph(2)->setData(x_vec, b_vec);
- ui->histogram->graph(2)->setPen(QPen(Qt::blue));
- ui->histogram->graph(2)->setBrush(QBrush(QColor(127, 127, 255, 80)));
-
- ui->histogram->xAxis->setVisible(true);
- ui->histogram->yAxis->setVisible(false);
- ui->histogram->xAxis->setRange(0, 255);
- ui->histogram->yAxis->setRange(0, max);
- ui->histogram->replot();