October 21st, 2013

Safe way to travel to UK, GPS track editing format

I researched UK border policy, and it would certainly make Stalin happy.... "However, Immigration Officers also have far broader powers under the Terrorism Act 2000 to examine, question, and search anyone in order to establish whether or not they appear to be or have been concerned in the commission, preparation or instigation of acts of terrorism.[8] A person may be detained under Schedule 7 for up to 9 hours.[9] The Immigration Officer need not have reasonable suspicion that the detainee has in fact been involved in terrorism.[10] The detainee has a duty to provide the Immigration Officer with all information requested and a failure to do so constitutes an offence, punishable by 3 months imprisonment and a fine." (from wikipedia). In particular, traveling with your main computer seems to be very bad idea.

I'm thinking about extending gtracks project with some easy GPS tracks editing capabilities. I'd like something normal unix tools would work on, that is "one point per line". There are 1000 formats for GPS tracks, but GPX is not really suitable for this, and I'd like to be able to add fields without changing the format, so it probably should not be CSV based. (Ideally, I'd like something like lat=50 lon=15 distance_to_prev=4, with fields such as distance_to_prev being computed and added there by the tools). Since there's already 1000 of them, inventing the new one seems pretty bad, but I can't find suitable one...