On 14/08/2014 12:35, John Packer wrote:
One question.
How would people map a cave?
(answering in case it wasn't a completely rhetorical question):
One option is the same way that people mapped before GPSs arrived -
accurately measure a baseline and triangulate from it. Obviously it's
substantially harder to do in a confined space with low light than
elsewhere.
These days you might also be able to make some use of the accelerometer
in some mobile phones. See also here:
http://wiki.openstreetmap.org/wiki/Indoor_mapping .
Cheers,
Andy
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