postgrids

An (very work in progress) attempt at building a postgres extension for working with British and Irish national grids (OSGB, and OSI). Provides a simple interface for converting valid grid references into eastings / northings and vice versa, as well as functionality to recalculate a grid reference to a new precision.

Built using the amazing pgrx, and wraps functionality from gridish.

Currently, does not support converting gridrefs into Geospatial primitives, as pgrx does not support postgis.

Examples

select osgb_from_string('SO892437');
---
SO892437

select osgb_from_eastings_northings(389200, 243700, 100);
---
SO892437

select osgb_precision('SO892437');
---
100

select osgb_recalculate('SO892437', 1000);
---
SO8943

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.