Hi, On 5 April 2018 at 09:07, Michael <[email protected]> wrote:
> ... I wonder why a 3mx3m > maximum granularity was selected when the benefits of finer detail would > seem to outweigh the marginally increased complexity. > You can add extra digits for finer detail. Extracts from https://github.com/google/open-location-code/blob/master/docs/olc_definition.adoc > A 10 digit code represents a 1/8000° by 1/8000° area. (At the equator, this is approximately 13.9 meters x 13.9 meters.) ... > Using a single grid refinement step, we have an 11 digit code that represents a 1/32000° by 1/40000° area (roughly 3.4 by 2.7 meters). ... > A 12 digit code would be less than 1 square meter. > Open Location Code Specification > 10. Open Location Codes with lengths of more than 10 digits have different heights and widths: > An 11 digit code has a height of 0.000025°, and a width of 0.00003125° > Subsequent lengths divide the height by five and the width by four. > 13. The two standard code lengths are 10 digits (1/8000° x 1/8000°), and 11 digits (1/40000° x 1/32000°). > Other code lengths are considered non-standard for household addressing, although they may be used for other purposes. Thanks, John _______________________________________________ Link mailing list [email protected] http://mailman.anu.edu.au/mailman/listinfo/link
