[Proj] Help translating NAD83 coordinates to WGS84

[DAVID Thayer]

>>> cewallace at neogas.com 2004-12-28 5:35:39 AM >>>
>I stumbled across this site in search of projection issues. I work
with
>a program called MapInfo Professional, and the street files we use is
in
>the NAD 27 format Tiger data. Then we purchased the update which was
>Tiger data using the NAD 83 projection. Once bringing the two on top
of
>each other there is huge differences. Is there a fix to convert our
data
>fields? Also what is the difference between NAD 83 & WGS 84?  

To fix your data you might want to have a look at the ogr2ogr utility
from
<http://ogr.maptools.org/>. I've only used it with ESRI shapefiles for
this purpose, but the documentation indicates that it works with
Mapinfo files.

HTH

dt



Dave Thayer, Public Health Engineer 
Colorado Department of Public Health and Environment
Air Pollution Control Division / Stationary Sources Program
david.thayer at state.co.us,   Voice:303-692-3187,   FAX:303-782-0278