Wasn't it sameer hassan who wrote:
>/*
>protected double distance(double pX, double pY) {
> double dx=this.x - pX;
> double dy=this.y - pY;
> double distance=Math.sqrt(dx * dx + dy * dy);
> return distance;
> }
>*/
>which gives me the direct distance between two points
But returns a result measured in arbitrary "degrees". The length of a
degree of latitude is constant (if you assume a spherical Earth) at
about 55.6km. However, a degree of longitude varies from being about
55.6km at the equator to zero at the pole. A "degree" in an arbitrary
direction varies between a degree of latitude and a a degree of
longitude at the same location, depending on the bearing.
So, basically, the result is useless unless you're on the equator.
--
Mike Williams
http://econym.org.uk/gmap
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