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Posted by willem van deursen on August 3, 2007, 9:17 am
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Hello Al,
basically what you are looking for is "Destination point given distance
and bearing from start point". Calculations for this can be performed at
http://www.movable-type.co.uk/scripts/latlong.html, and this site also
gives the formulas to perform this calculations.
Willem
almurph@altavista.com wrote:
> Hi,
>
> Hope that you can help me. I have a wee problem that I can't figure
> out.
>
> I have the X-Y co-ordiates of a point in latitude & longitude format
> (specified in decimal-degress). I also have the distance in km of the
> radius of a circle around this point.
> My question is this: is there a nice formula for calculating the 4
> points around this central point using the radial distance? The points
> that I'm interested in are the ones directly vertical & horizontal -
> do you know what I mean? Forming a kind of a plus sign...
>
> Any comments/suggestions/pointers much appreciated.
>
> Cheers,
> Al.
>
--
Willem van Deursen, The Netherlands
wvandeursen_nospam@nospam_carthago.nl
replace _nospam@nospam_ for @ to get a valid email address
www.carthago.nl
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