[GRASSLIST:4070] Re:Basic proj question

C.S. Cornuelle bob at xmission.com
Mon Aug 2 19:39:56 EDT 2004


Michele,

Hmm, educational.  :^)

Thanks, that works.

Thus spake Michele (michele.rocc at libero.it):

> Hi,
> 
> Labert equal area is not a datum, and you can find it choosing "Other Projection" ( "D" item in the menu) while you setup a new location.
> 
> Michele.
> 
> > I'm trying to project data from non-wgs84 sources onto the GTOPO30
> > DEM.  But these data are in Lambert equal area.  When I go to set up 
> > a database in Lambert equal area, the choices for "geodetic datum"
> > do not include it, i.e.:
> > 
> >   ok? (y/n) [y] 
> >   Do you wish to specify a geodetic datum for this location?(y/n) [y] y
> > 
> >   Please specify datum name
> >   Enter 'list' for the list of available datums
> >   or 'custom' if you wish to enter custom parameters
> >   Hit RETURN to cancel request
> >   >list
> >   Short Name      Long Name / Description
> >   ---
> >   agd66   Australian_Geodetic_Datum_1966
> >   (australian ellipsoid)
> >   ---
> >   agd84   Australian_Geodetic_Datum_1984
> >   (australian ellipsoid)
> >   ...
> > 
> > and so on.  No Lambert equal area, or several others I might name.  Does
> > this list come from PROJ.4?
> > 
> > I've compiled GRASS 5.3 with the latest PROJ.4 I could find, and still
> > no luck with this.  Any idea what I'm doing wrong here?  I'm assuming
> > that as per the manual one creates two databases and then uses r.proj
> > to project the one coordinate system onto the other one.
> > 
> > Thanks.  :^)

-- 
Adios,
Chris Cornuelle
bob at xmission dot com




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