On 14 July 2014 09:54, Lester Caine <lester@lsces.co.uk> wrote:

On 12/07/14 15:30, Dirkjan Ochtman wrote:

...

This might be interesting for people on this list:

https://plus.google.com/u/0/+BradFitzpatrick/posts/XVyy1bAzkZd

It's worth pointing out the 'restriction' that this is using base data that is not accurate close to borders. Something we have highlighted before when using the simplified shape files as a base. But it is still a useful tool!

Quite a clever little hack to save memory, yes the shp file suffers from a lack of accuracy, but so does the geolocation input data. One reason I like the Gnome proposal to use spatialite to do proper geoprocesing is you can assign a buffer function to all borders and if you fall within the buffer then ask the user to make a choice, or try use some other heuristic to help decide. John.