projection on the fly

Paul Ramsey pramsey at REFRACTIONS.NET
Sat Nov 5 22:10:16 EST 2005


Offhand, if you're using the epsg file rather than definition your  
own projections by hand, the NAD83 definitions are in meters, not  
feet.  Am I right?

P

On Nov 5, 2005, at 6:36 PM, Rob Sosnowski wrote:

> Have three main data projections - NAD27 state plane, florida (feet),
> NAD83 state plane, florida (feet), and UTM 17N (meters).  I set the
> projection object at the top of mapfile to UTM 17N (meters).
>
> Problem - Only the NAD83 and UTM data layers are visible.  Map  
> extents are
> set to UTM meters.  If however, I change the map extents to state  
> plane
> feet and change the projection object to NAD 27 state plane, florida -
> only the NAD 27 data layers show.
>
> Any ideas why the NAD27 state plane layers don't show but the NAD83  
> layers
> do?
>
> Thanks....Rob



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