# NAME GIS::Distance::Fast - C implementation of GIS::Distance formulas. # DESCRIPTION This distribution re-implements some, but not all, of the formulas that come with [GIS::Distance](https://metacpan.org/pod/GIS::Distance) in the C programming language. C code is generally much faster than the perl equivilent. In most of my testing I've found that the C version of the formulas outperform the Perl equivelent by at least 2x. This module need not be used directly. [GIS::Distance](https://metacpan.org/pod/GIS::Distance) will automatically use the ::Fast formulas when they are available. # FORMULAS [GIS::Distance::Fast::Cosine](https://metacpan.org/pod/GIS::Distance::Fast::Cosine) [GIS::Distance::Fast::Haversine](https://metacpan.org/pod/GIS::Distance::Fast::Haversine) [GIS::Distance::Fast::Vincenty](https://metacpan.org/pod/GIS::Distance::Fast::Vincenty) # SUPPORT Please submit bugs and feature requests to the GIS-Distance-Fast GitHub issue tracker: [https://github.com/bluefeet/GIS-Distance-Fast/issues](https://github.com/bluefeet/GIS-Distance-Fast/issues) # AUTHORS Aran Clary Deltac # LICENSE This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.