>Thanks Will. Can you tell if the formula that you used to calculate the >distance between 2 latitutdes and longitudes is the "flat-earth" formula or >the "spherical earth" formula? I am talking about: >ROUND((ACOS((SIN(#passedzip.latitude#/57.2958) * SIN(latitude/57.2958)) + >(COS(#passedzip.latitude#/57.2958) * COS(latitude/57.2958) * >COS(longitude/57.2958 - #passedzip.longitude#/57.2958)))) * 3963) >
I don't know what it is. I think I found it through google a while back. I DO know that it seems to give fairly accurate results. And it also displays the distance in the results, which is nice. Will ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Discover CFTicket - The leading ColdFusion Help Desk and Trouble Ticket application http://www.houseoffusion.com/banners/view.cfm?bannerid=48 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:226000 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
