# Qwt - Qt Widgets for Technical Applications

### 5.2.1

The Qwt library contains GUI Components and utility classes which are primarily useful for programs with a technical background. Beside a 2D plot widget it provides scales, sliders, dials, compasses, thermometers, wheels and knobs to control or display values, arrays, or ranges of type double.

## License

Qwt is distributed under the terms of the Qwt License, Version 1.0.

## Platforms

Qwt 5.x might be usable in all environments where you find Qt. It is compatible with Qt 3.3.x and Qt 4.x, but the documentation is generated for Qt 4.x.

## Screenshots

- Curve Plots
- Scatter Plot
- Spectrogram, Contour Plot
- Histogram
- Dials, Compasses, Knobs, Wheels, Sliders, Thermos

## Downloads

Stable releases, prereleases and snapshots are available at the Qwt project page.

For getting a snapshot with all bugfixes for the latest 5.2 release:

     svn co https://qwt.svn.sourceforge.net/svnroot/qwt/branches/qwt-5.2

For getting a development snapshot from the SVN repository:

     svn co https://qwt.svn.sourceforge.net/svnroot/qwt/trunk/qwt

Qwt doesn't distribute binary packages, but today all major Linux distributors offer one. Note, that these packages often don't include the examples.

## Installation

Have a look at the qwt.pro project file. It is prepared for building dynamic libraries in Win32 and Unix/X11 environments. If you don't know what to do with it, read the file INSTALL and/or Trolltechs qmake documentation. Once you have build the library you have to install all files from the lib, include and doc directories.

## Support

- Mailing list
  For all kind of Qwt related questions use the Qwt mailing list.
  If you prefer newsgroups use the mail to news gateway of Gmane.

- Forum
  Qt Centre is a great resource for Qt related questions. It has a sub forum, that is dedicated to Qwt related questions.

- Individual support
  If you are looking for individual support, or need someone who implements your Qwt component/application contact qwt-support@tigertal.de.

## Related Projects

QwtPolar, a polar plot widget.
QwtPlot3D, an OpenGL 3D plot widget.
QtiPlot, data analysis and scientific plotting tool, using QwtPlot.

## Language Bindings

PyQwt, a set of Qwt Python bindings.
Korundum/QtRuby, including a set of Qwt Ruby bindings.

## Donations

Sourceforge offers a Donation System via PayPal. You can use it, if you like to support the development of Qwt.

## Credits:

Authors:
  Uwe Rathmann, Josef Wilgen ( <= Qwt 0.2 )

Project admin:
  Uwe Rathmann <rathmann@users.sourceforge.net>