General relativistic geodesic integration and ray-tracing

 Gyoto aims at providing a framework for computing orbits and
 ray-traced images in General relativity. It consists in a shared
 library (this package), utility programs (in the gyoto package), and
 a plug-in for the Yorick programing language (in yorick-gyoto). Gyoto
 can be extended with plug-ins (see libgyoto1-dev).