[Mapserver-users] Projection string for (Degree, minute, second)

[Eric Bridger]

On Wed, 2004-04-28 at 08:59, Choi,Stephanie [Ontario] wrote:
 
> Quoting "Choi,Stephanie [Ontario]" <Stephanie.Choi at ec.gc.ca>:
> 
> > Hi Jason,
> > 
> > Sorry for the misleading sentence.  Some of the data I have right now 
> > are in DMS but some of the others are in DD.  How can I project them 
> > on the same map coz right now I couldn't project it on the same 
> > extent.  I try to add proj=latlong for DD data layer but I am not sure
> 
> > what should I add for DMS data layer though.

This is not a projection issue but a units issue, so I doubt Proj4 will
help you. As far as I know Mapserver will only support decimal degrees
so you will need to convert your DMS data to DD. The formula is pretty
simple.

Decimal degrees = degrees + (minutes/60) + (seconds/3600)

HTH
Eric