Stuart,
Roughly how far apart are the 2 calculations? It's been quite a while
since I used any Census/TIGER data, but as memory serves, the TIGER/Line
data was pretty rough - i.e. the lines were "trimmed" to minimize the
number of points, and as such, could make for some "rough" calculations of
land size - especially at the county and state level.
I also don't know anything about the accuracy of the MapInfo County data,
but I would suspect that you're seeing a "precision" problem on one (if not
both) sides of the equation.
I hope this helps,
Dave
At 08:51 AM 08/22/2000, Talkofsky GS09 Stuart H wrote:
>I am a user of Mapinfo 6.0. I used the US County map to determine the sizes
>of some county via the area. Someone else looked up maps based on the U.S.
>Census and got a different area size for the same areas. What does the
>Mapinfo map take into consideration that say, the Census doesn't. Why should
>the area be different. I hope I asked the question correctly.
>
>
>Stuart Talkofsky
>Marketing Specialist
>United States Marine Corps
>HQ 1 MCD, Garden City, NY 11530
>Phone # 516-228-5976
>e-mail: [EMAIL PROTECTED]
>
>
>
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David L. Dennis
SOFPREP Support Manager Phone: (904) 881-2312
TYBRIN Corporation DSN: 641-2312
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