Qt 5.7 | Qt Data Visualization

Qt 5.7.1 Reference Documentation

# Qt Data Visualization

Qt Data Visualization module provides a way to visualize data in 3D.

## Features

- Multiple data visualization options: 3D Bars, 3D Scatter, and 3D Surface
- 2D slice views of the 3D data
- Interactive data: rotate, zoom, and highlight data using mouse or touch
- Uses OpenGL for rendering the data
- QML2 support
- Customizable axes for data
  - Control viewable data window with axis ranges
  - Customize value axis grid lines and labels with axis formatters
  - Polar horizontal axes support for surface and scatter graphs
- Customizable input handling
- Customizable themes
- Custom items and labels can be added to any graph
- Ready-made data proxies to visualize data from Qt item models and height maps
- Perspective and orthographic projections
- Volumetric custom items

## Getting Started

To import Qt Data Visualization QML types, add the following import statement to your `.qml` file:

      import QtDataVisualization 1.2

If you intend to use Qt Data Visualization C++ classes in your application, use the following include and using directives:

      #include <QtDataVisualization>

      using namespace QtDataVisualization;

Note: If you are only using a few classes from this module, we recommend including only those specific classes instead of the whole module.

To link against the Qt Data Visualization module, add this line to your `qmake` project file:

      QT += datavisualization

See the Getting started page for further information on how to use Qt Data Visualization in your application.

## Articles

- Data Handling
- Interacting with Data
- Known Issues

## References

- Qt Data Visualization C++ Classes
- Qt Data Visualization QML Types

Qt Data Visualization comes with the following examples:

Audiolevels Example | Simple application showing real time audio data.
Bars Example | Using Q3DBars in a widget application.
Custom Input Example | Implementing custom input handler in a widget application.
Custom Items Example | Adding custom items to a surface graph.
Custom Proxy Example | Using Q3DBars with a custom proxy.
Axis Range Dragging With Labels Example | Implementing a custom input handler to support axis dragging.
Item Model Example | Using an item model as data source for Q3DBars.
Qt Quick 2 Axis Dragging Example | Implementing axis dragging in QML
Qt Quick 2 Axis Formatter Example | Example of a hybrid C++ and QML application demonstrating different axis formatters.
Qt Quick 2 Bars Example | Using Bars3D in a QML application.
Qt Quick 2 Custom Input Example | Customizing input in a QML application.
Qt Quick 2 Legend Example | Showing graph legend in a QML application.
Qt Quick 2 Multiple Graphs Example | Showing multiple graphs simultaneously in a QML application.
Qt Quick 2 Oscilloscope Example | Example of a hybrid C++ and QML application.
Qt Quick 2 Scatter Example | Using Scatter3D in a QML application.
Qt Quick 2 Spectrogram Example | Showing spectrogram graph in a QML application.
Qt Quick 2 Surface Example | Using Surface3D in a QML application.
Qt Quick 2 Surface Multiseries Example | Using multiple series with Surface3D in a QML application.
Rotations Example | Using rotated scatter items
Scatter Example | Using Q3DScatter in a widget application.
Surface Example | Using Q3DSurface in a widget application.
Textured Surface Example | Using texture with Q3DSurface.
Volumetric rendering Example | Rendering volumetric objects.