[GRASSLIST:595] Re: set up grass location

[Ana Soares]

Hi!

Thanks very much for the suggestion!
I ended up doing that yesterday!
But thank you so much!

2006/4/6, Nagesh Bhatkar <bnagesh at nio.org>:
>
> Hi,
> I just thought of sharing this with you.
>
> In the ~/grass-6.0.1/lib/init directory(prior to compilation of GRASS),
> the programs mke_loc.c , set_data.c  can be edited  to create location
> and mapset, automatically everytime u start a GRASS session  for the
> first  time and to avoid inputting the values at the command prompt
> to set the geographic region. One can set the all the values internally.
> Also the PROJ_INFO and PROJ_UNITS files can be
> created within the programs. Later using g.setproj the proj info could
> be changed.
> I did the above procedure because i wanted GRASS to start with the
> geographic region being set since we all use the same coordinate
> system(lat/lon) and ellipsoid WGS84.
>
>
>
>
> Nagesh
>
>
>
> Maciek Sieczka wrote:
>
> >On Tue, 4 Apr 2006 11:32:31 +0100
> >"Ana Soares" <tiobrothercamarada at gmail.com> wrote:
> >
> >
> >
> >>Hello :)
> >>
> >>Is there any way to set up a new grass location (with all those
> >>fields : coordinate system, etc) without using the terminal ?
> >>
> >>
> >
> >For 6.x, using EPSG codes if Grass is started GUI mode.
> >
> >Another option is to setup a quick'n'dirty XY location and use g.proj
> >to modify the projection, eg. by PROJ.4 syntax or a file with WKT
> >projection definition (RTM for details).
> >
> >
> >
> >>I mean, is there (and if there is, what is it) any structure where
> >>grass keeps this info so that I can enter it ? I know it uses
> >>environment variables, but I don't know
> >>what to do for the fields like coordinate system, datum, etc
> >>
> >>
> >
> >Grass depends on PROJ.4 for projections handling.
> >
> >Read cs2cs man to learn how to get the names it uses.
> >
> >Check epsg and esri files in the directory where your PROJ.4 is
> >installed for some complete cordinate systems strings.
> >
> >Proj.4 naming is 90% compatible with Grass, but:
> >
> >PROJ.4                 Grass
> >latlong                        ll
> >krass                  krassovsky
> >
> >
> >Propably more like these, but only these I know.
> >
> >
> >Also, PROJ.4 needs uppercase ellipsoids names, while Grass tolerates
> >both lower and uppercase.
> >
> >Then check projections, ellipse.table and datum.table in the
> >dir where_your_grass_lives/etc/. Seems they are not complete, but will
> >give you some further insight.
> >
> >It's all a bit mess but that's the way it is for now, due to legacy
> >reasons.
> >
> >Maciek
> >
> >--------------------
> >W polskim Internecie s? setki milion?w stron. My przekazujemy Tobie tylko
> najlepsze z nich!
> >http://katalog.panoramainternetu.pl/
> >
> >
> >
> >
> >
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/grass-user/attachments/20060406/876e5122/attachment.html