![](//d33sqmjvzgs8hq.cloudfront.net/wp-
content/themes/oneqt/assets/images/cookie_small.png)

We bake cookies in your browser for a better experience. Using this site means
that you consent. [Read More](//qt.io/terms-conditions/)

Menu

  * [ Partners ](//qt.io/partners/)
  * [ Blog ](https://blog.qt.io/)

[ ](https://qt.io/)

  * [Download](https://qt.io/download/)
  * [Device Creation](https://www.qt.io/qt-for-device-creation/)
  * [Application Development](https://www.qt.io/application-development/)
  * [Services](https://www.qt.io/services/)
  * [Developers](https://www.qt.io/developers/)

  * [EN](https://qt.io/support/)
  * [RU](https://qt.io/ru/)
  * [ZH](https://qt.io/zh-hans/)

#

  * [Wiki](https://wiki.qt.io/)
  * [Documentation](https://doc.qt.io/)
  * [Forum](https://forum.qt.io/)
  * [Bug Reports](https://bugreports.qt.io/)
  * [Code Review](https://codereview.qt-project.org/)
  * [Resource Center](https://resources.qt.io/)
  * [Qt Extensions](https://marketplace.qt.io/)

# Qt Documentation

  * [Qt 5.12](index.html)
  * [Qt WebEngine](qtwebengine-index.html)
  * [Qt WebEngine Licensing](qtwebengine-licensing.html)
  * d3

# d3

[Project Homepage](https://github.com/mbostock/d3)

    
    
    Copyright (c) 2010-2014, Michael Bostock
    All rights reserved.
    
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:
    
    * Redistributions of source code must retain the above copyright notice, this
      list of conditions and the following disclaimer.
    
    * Redistributions in binary form must reproduce the above copyright notice,
      this list of conditions and the following disclaimer in the documentation
      and/or other materials provided with the distribution.
    
    * The name Michael Bostock may not be used to endorse or promote products
      derived from this software without specific prior written permission.
    
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL MICHAEL BOSTOCK BE LIABLE FOR ANY DIRECT,
    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
    BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
    OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
    EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

© 2020 The Qt Company Ltd. Documentation contributions included herein are the
copyrights of their respective owners. The documentation provided herein is
licensed under the terms of the [GNU Free Documentation License version
1.3](https://www.gnu.org/licenses/fdl.html) as published by the Free Software
Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in
Finland and/or other countries worldwide. All other trademarks are property of
their respective owners.

  * [Download](https://qt.io/download/)
    * [Start for Free](https://qt.io/download/)
    * [Qt for Application Development](https://qt.io/download-eval-for-applications-step-2/)
    * [Qt for Device Creation](https://qt.io/request-eval-for-devices-step-2/)
    * [Qt Open Source](https://qt.io/download-open-source/)
    * [Terms & Conditions](https://qt.io/terms-conditions/)
    * [Licensing FAQ](https://qt.io/FAQ/)
  * [Product](https://qt.io/product/)
    * [Qt in Use](https://qt.io/product/)
    * [Qt for Application Development](https://qt.io/application-development/)
    * [Qt for Device Creation](https://qt.io/qt-for-device-creation/)
    * [Commercial Features](https://qt.io/qt-features/)
    * [Qt Creator IDE](https://qt.io/ide/)
    * [Qt Quick](https://qt.io/qt-quick/)
  * [Services](https://qt.io/services/)
    * [Technology Evaluation](https://qt.io/services-technology-evaluation/)
    * [Proof of Concept](https://qt.io/services-proof-of-concept/)
    * [Design & Implementation](https://qt.io/services-design-implementation/)
    * [Productization](https://qt.io/services-productization/)
    * [Qt Training](https://qt.io/qt-training/)
    * [Partner Network](https://qt.io/partners/)
  * [Developers](https://qt.io/developers/)
    * [Qt Extensions](https://marketplace.qt.io/)
    * [Examples & Tutorials](https://doc.qt.io/qt-5/qtexamplesandtutorials.html)
    * [Development Tools](https://doc.qt.io/qt-5/topics-app-development.html)
    * [Wiki](https://wiki.qt.io/)
    * [Forums](https://forum.qt.io/)
    * [Contribute to Qt](https://wiki.qt.io/contribute)
  * [About us](https://qt.io/about-us/)
    * [Training & Events](https://qt.io/events/)
    * [Resource Center](https://qt.io/resource-center/)
    * [News](https://qt.io/news/)
    * [Careers](https://qt.io/careers/)
    * [Locations](https://qt.io/locations/)
    * [Contact Us](https://qt.io/contact-us)

[](https://qt.io/about-us/)

  * [Sign In](https://account.qt.io/login "Sign into your account.")
  * [Feedback](mailto:feedback@theqtcompany.com?Subject=Feedback%20about%20doc.qt.io%20site)
  * [Contact us](https://qt.io/contact-us/)
  * [© 2020 The Qt Company](https://qt.io/about-us/)

