Keith,
The U.S. National Geodetic Survey (www.ngs.noaa.gov) has the software and
data files to perform datum shifts (from NAD27 to NAD83) for the Republic
of Mexico. I would guess that all you would need to do is to download the
NADCON data files for Mexico into the appropriate subdirectory of your
MapInfo package, and you'd be set up.
Clifford J. Mugnier, C.P., C.M.S.
National Director (2006-2008),
Photogrammetric Applications Division
American Society for Photogrammetry and Remote Sensing
and
Chief of Geodesy,
CENTER FOR GEOINFORMATICS
Department of Civil Engineering
CEBA 3223A
LOUISIANA STATE UNIVERSITY
Baton Rouge, LA 70803
Voice and Facsimile: (225) 578-8536 [Academic]
Voice and Facsimile: (225) 578-4474 [Research]
Honorary Life Member of the
Louisiana Society of Professional Surveyors
======================================================
http://www.asprs.org/resources/GRIDS/
http://appl003.lsu.edu/eng/ceeweb.nsf/$Content/Mugnier
======================================================
Fellow Users,
I'm just getting into a project in Mexico. Got some SID pictures of the
countryside and would like to register them correctly. The coordinate
system is NAD27 Zone 15 for Mexico. Looking under the coordinate systems in
MapInfo, there isn't a NAD27 for Mexico. Just for Canada and the US. Is
there another system I should be using or will the NAD27 ConUS be good.
Thanks,
Keith Fowlow
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