// Copyright (C) 2023 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only #include "logaxiswidget.h" #include #include #include #include LogAxisWidget::LogAxisWidget(QWidget *parent) : ContentWidget(parent) { //![1] auto series = new QLineSeries; *series << QPointF(1.0, 1.0) << QPointF(2.0, 73.0) << QPointF(3.0, 268.0) << QPointF(4.0, 17.0) << QPointF(5.0, 4325.0) << QPointF(6.0, 723.0); //![1] //![2] auto chart = new QChart; chart->addSeries(series); chart->legend()->hide(); chart->setTitle("Logarithmic Axis"); //![2] //![3] auto axisX = new QValueAxis; axisX->setTitleText("Data point"); axisX->setLabelFormat("%i"); axisX->setTickCount(series->count()); chart->addAxis(axisX, Qt::AlignBottom); series->attachAxis(axisX); auto axisY = new QLogValueAxis; axisY->setTitleText("Values"); axisY->setLabelFormat("%g"); axisY->setBase(8.0); axisY->setMinorTickCount(-1); chart->addAxis(axisY, Qt::AlignLeft); series->attachAxis(axisY); //![3] //![4] createDefaultChartView(chart); //![4] }