Yeah, it goes both ways (I think the math is easier converting to V & H
rather than back).  Check out Telcordia's web site for their program that
does the conversion.  Or if you're adventurous I can send you the code that
I found on he web.

T

At 08:43 AM 8/2/99 -0400, Richard Takacs wrote:
>Is there a way to place the conversion from Lat & Long to V&H though.  Our
>system uses this set up in locating.  Do not like it that much, creates to
>much extra paper work for the field personnel.
>
>Richard Takacs
>Project Manager
>
>Adelphia Business Solutions
>1180 Sathers Drive
>Pittston, Pa 18643
>
>[EMAIL PROTECTED]
>
>> -----Original Message-----
>> From:        Tracy Waldon [SMTP:[EMAIL PROTECTED]]
>> Sent:        Monday, August 02, 1999 3:53 AM
>> To:  [EMAIL PROTECTED]
>> Subject:     Re: MI v AND h COORDINATES
>> 
>> It's AT&T's coordinate sysstem for billing LD calls.  So you must either
>> have switch locations or rate centers.  Cartographic coordinate systems
>> are
>> not something I'm strong on, but basically it is a conversion so that you
>> can use the Pythagorean Theorem to easily calculate distance between two
>> points.  It's good for Continental US and Southern Canada.  But for
>> Alaska,
>> Hawaii, and I suspect N. Canada, the conversion is inaccurate.   By no
>> means is the accuracy of any location at the street level.
>> 
>> I had planned (am planning?) on writing a MapBasic program to convert V &
>> H
>> to Lat & Long, so I have a bit of code I found on the web w.r.t. the
>> conversion.  Be happy to pass it along, but an easier solution is
>> available.  Telcordia (aka BellCore) sells a small app that converts it to
>> Lat and Long.  
>> 
>> T
>> 
>> 
>> At 11:06 AM 7/30/99 -0600, you wrote:
>> >Hello all,
>> >
>> >    I have recieved a file that has two columns one called V_coordinates
>> >and one Called H_coordinates across Canada I have no idea as to what
>> >coordinate system this is in
>> >
>> >eg.
>> >
>> >v cordinate
>> >4,239
>> >h coordinate
>> >2,160
>> >
>> >
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