[rules-users] VCRP - Distance calculation in getMilliDistance
muerlings
muerlings at gmail.com
Fri Feb 28 23:53:18 EST 2014
Please, take a look at http://en.wikipedia.org/wiki/Great-circle_distance
In it, there are formulas based on latitude and longitude for arc length
calculation. The problem is that they are "expensive" formulas based on
trigonometric functions and could heavily impact performance, but they are a
better aproximation than the cord length.
mu
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