Revision control

Copy as Markdown

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
/*!
\page qtcharts-linechart-example.html
\title Creating Line Charts
\brief Shows how to create a simple line chart.
\include gallery.qdocinc
\image examples_linechart.png {Screenshot showing a line chart example}
To create a line chart, a QLineSeries instance is needed. Let's create one.
\snippet chartsgallery/linewidget.cpp 1
Then we add data to the series. We can use the append() member function or use the stream operator.
\snippet chartsgallery/linewidget.cpp 2
To present the data on the chart we need a QChart instance. We add the series to it, create the default axes, and set the title of the chart.
\snippet chartsgallery/linewidget.cpp 3
Then we create a QChartView object with QChart as a parameter. This way we don't need to create a QGraphicsView scene ourselves.
\snippet chartsgallery/linewidget.cpp 4
The chart is ready to be shown.
*/