_British National Grid__ _ Some time ago I published an OSM format file for the British National Grid, as printed on Ordnance Survey maps. I have now updated this. There are two main changes: 1. The Way and Node IDs are now well out of the range of Open Street Map IDs, so the file can be processed simultaneously with other source files; 2. By omitting roughly 50% of internal nodes, and some formatting changes, the (uncompressed) file size is reduced from about 73MB to about 20MB for the same coverage. This has negligible effect on the final output, since the grid lines are very close to straight lines over a few kilometres. This file may be downloaded from http://www.rogercalvert.me.uk/OSM/GBGrid. _Latitude and Longitude_ In a similar manner, I have generated a file of lines of Latitude and Longitude. But since these are world wide, rather than limited to Great Britain, I have put a generator on line at http://www.rogercalvert.me.uk/OSM/LatLong <http://www.rogercalvert.me.uk/OSM/LAtLong>. A file will be generated in real time and downloaded for any (sensible) range of coordinates. For performance reasons, I have limited the download size to 10MB (which is enough to cover mainland Great Britain), but several downloads may be used to cover a larger region. Please let me know of any problems you encounter in accessing or using these. Roger -- ------------------------------------------------------------------------ Roger Calvert ------------------------------------------------------------------------