Hi all,
I'm working on my first mapping project, so IANAM (I am no a mapper).
Here is the projection info from a shapefile I'm using:
PROJCS["NAD_1983_StatePlane_Iowa_North_FIPS_1401_Feet",
GEOGCS["GCS_North_American_1983",
DATUM["D_North_American_1983",
SPHEROID["GRS_1980",6378137.0,298.257222101]],
PRIMEM["Greenwich",0.0],
UNIT["Degree",0.017453292519943295]],
PROJECTION["Lambert_Conformal_Conic"],
PARAMETER["False_Easting",4921250.0],
PARAMETER["False_Northing",3280833.333333333],
PARAMETER["Central_Meridian",-93.5],
PARAMETER["Standard_Parallel_1",42.06666666666667],
PARAMETER["Standard_Parallel_2",43.26666666666667],
PARAMETER["Latitude_Of_Origin",41.5],
UNIT["Foot_US",0.30480060960121924],
PARAMETER["scale_factor",1.0]]
I used QGIS to create a mapfile, and it generated this:
PROJECTION
'proj=longlat'
'ellps=WGS84'
'datum=WGS84'
'no_defs'
''
END
I was kind of thinking this (Thanks to FrankW for helping me find the
right epsg code):
PROJECTION
'init=epsg:3417'
END
Is the first one even right? Would there be a difference? Why might I
choose one over the other? I'm going to put this into postgis, with
srid = 3417, will that make any difference. (I'd like to avoid
re-projections.. I think... don't I?)
-Andy
_______________________________________________
mapserver-users mailing list
mapserver-users@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/mapserver-users
