Quarter is a light-weight glue library that provides seamless integration
between Systems in Motions's Coin high-level 3D visualization library and
Trolltech's Qt 2D user interface library.
Qt and Coin is a perfect match since they are both open source, widely portable
and easy to use. Quarter has evolved from Systems in Motion's own experiences
using Coin and Qt together in our applications.
The functionality in Quarter revolves around QuarterWidget, a subclass of
QGLWidget. This widget provides functionality for rendering of Coin scenegraphs
and translation of QEvents into SoEvents. Using this widget is as easy as using
any other QWidget.