[josm-dev] pecision of mouseclick in josm - may be notjsom-specific
Frederik Ramm
frederik at remote.org
Tue Feb 1 23:57:53 GMT 2011
Hi,
Sebastian Klein wrote:
> Good to know... I think we could get this value down to 0.642cm if use
> the full 64 bit and don't skip the range from 180*10^7 to 2^31
> (longitude) and from 85.1*10^7 to 2^31 (latitude).
But why stop there and allow ridiculous resolution at the poles? Given
that the earth has a surface of 510,072,000 square kilometres, if you
divide that surface in 2^64 almost-round shapes, then each of those only
has an area of 0.2765 square centimetres, allowing you to address each
place on the surface with 0.52cm precision!
Bye
Frederik
--
Frederik Ramm ## eMail frederik at remote.org ## N49°00'09" E008°23'33"
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