- Qt 6.8
- Qt Charts
- Qt Charts | Commercial or GPLv3

# Qt Charts

The Qt Charts module provides a set of easy-to-use chart components. It uses the Qt Graphics View Framework to integrate charts with modern user interfaces. Qt Charts can be used as QWidgets, QGraphicsWidget, or QML types. Users can easily create impressive charts by selecting one of the themes.

Note: The Qt Charts module is in the maintenance phase. For new projects, consider using the Qt Graphs module. To render 2D charts, QtGraphs uses Qt Quick Shapes, which is a more modern GUI technology compared to the outdated Qt Graphics View Framework used by the Qt Charts module.

The Qt Charts QML API is an intuitive and simple way to show charts in your QML applications.

This example shows how to create a simple line chart:

     ChartView {
         title: "Line Chart"
         anchors.fill: parent
         antialiasing: true

         LineSeries {
             name: "Line"
             XYPoint { x: 0; y: 0 }
             XYPoint { x: 1.1; y: 2.1 }
             XYPoint { x: 1.9; y: 3.3 }
             XYPoint { x: 2.1; y: 2.1 }
             XYPoint { x: 2.9; y: 4.9 }
             XYPoint { x: 3.4; y: 3.0 }
             XYPoint { x: 4.1; y: 3.3 }
         }
     }

## Using the Module

### QML API

The QML types of the module are available through the `QtCharts` import. To use the types, add the following import statement to your .qml file:

     import QtCharts

Note: An instance of QApplication is required for the QML types as the module depends on Qt's Graphics View Framework for rendering. QGuiApplication is not sufficient. However, projects created with Qt Creator's Qt Quick Application wizard are based on the Qt Quick template that uses QGuiApplication by default. All the QGuiApplication instances in such projects must be replaced with QApplication.

### C++ API

Using a Qt module's C++ API requires linking against the module library, either directly or through other dependencies. Several build tools have dedicated support for this, including CMake and qmake.

#### Building with CMake

Use the `find_package()` command to locate the needed module component in the `Qt6` package:

     find_package(Qt6 REQUIRED COMPONENTS Charts)
     target_link_libraries(mytarget PRIVATE Qt6::Charts)

For more details, see the Build with CMake overview.

#### Building with qmake

To configure the module for building with qmake, add the module as a value of the `QT` variable in the project's .pro file:

     QT += charts

## Module Evolution

Changes to Qt Charts lists important changes in the module API and functionality that were done for the Qt 6 series of Qt.

## Articles and Guides

- Qt Charts Overview

## Examples

- Qt Charts Examples

## API Reference

- C++ Classes
- QML Types

## Licenses

Qt Charts is available under commercial licenses from The Qt Company. In addition, it is available under the GNU General Public License, version 3. See Qt Licensing for further details.