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# Need a great circle calculation

Posted on 2003-10-22

Hey all

I need a great circle calculation for vbscript.

I just got finished with determining a "nearest store locator" thanks to some help here but I am not smart enough to figure out all the "great circle" info out there...

I have 4 coordinates

Originating Lat/Long

and

Destination Lat/Long

I need to know how to calculate the distace between those two points.

I have read about the Great Circle computation method.. but just can't wrap my head around it and I can't seem to tailor the web examples I have found into a useable VBscript.

anyone got anything?