[Mapserver-users] proj question

Jeff McKenna jmckenna at dmsolutions.ca
Mon May 31 22:23:04 EDT 2004

Hi Zamil,

The short answer is that if all of your data is in the same projection 
(which is your case I imagine) you don't have to specify a 
projection..just make sure you give the correct EXTENTs of your data in 
the mapfile.

Yes MapServer does support projections...and it uses the PROJ4 library 
(http://www.remotesensing.org/proj)....but don't worry about all that if 
your data is all in the same projection.


Zamil Murji wrote:
> Hello list,
> I have some data in a shapefile and the shapefile came with a .prj file. Will mapserver automatically read that .prj file or will I have to specify a PROJECTION in my .map file? If I have to specify something in my .map file, what is the format? Here is the contents of my .prj file:
> GEOGCS["North_American_Datum_1927",DATUM["D_North_American_1927",SPHEROID["Clarke - 1866",6378206.4,294.9786982139006]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]
> Thanks
> Zamil 

Jeff McKenna
GIS Specialist
DM Solutions Group Inc.

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