Talk:407: Cheap GPS

Explain xkcd: It's 'cause you're dumb.
Revision as of 00:13, 18 June 2013 by 178.107.249.215 (talk) (Created page with "In an inversion of Title-text, I did actually make a Perl script for Geohashing which (for a given target) gave a bearing and distance to target from the interogated GPS USB d...")
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In an inversion of Title-text, I did actually make a Perl script for Geohashing which (for a given target) gave a bearing and distance to target from the interogated GPS USB dongle's idea of my current location... But the bearing was absolute, with no way of determining which relative direction I (or at least the laptop/dongle) was facing. (I had decided that direction of travel could not be reliably worked out from the last pair or trio of locations, given that when it mattered most I was probably tramping quickly back and forth over moorland looking for some specific feature of vegetation or drainage matching up with the aerial photos). Examination of moss on stones or trees (or satellite TV dishes on houses, for the urban environment) was occasionally needed to narrow down orientation. Or approximating the old analogue watch-hands trick with the sun, in my head (having only the digital time). 178.107.249.215 00:13, 18 June 2013 (UTC)