g.setproj

GRASS GRASS user
1

Can someone explain how g.setproj works. According to the man page, it
should prompt for the projection. In practice howver, it seems to read
the proj from DEFAULT_WIND. The problem I'm finding is that the only
valid proj: values are:
  0:(xy)
  1:(utm)
  2:(state plane)
  3:(ll)
and g.setproj doesn't like anything else. So how do I get nifty
projections like aea,lcc,merc,tmerc? Note this is the same list that
comes up for me when making a new location. Shouldn't that include all these
projections?

Thanks in advance.

Quinn Hart (qjhart@ucdavis.edu)
Dept. Land, Air, and Water Resources
UC Davis

2

Can someone explain how g.setproj works. According to the man page, it
should prompt for the projection. In practice howver, it seems to read
the proj from DEFAULT_WIND. The problem I'm finding is that the only
valid proj: values are:
0:(xy)
1:(utm)
2:(state plane)
3:(ll)
and g.setproj doesn't like anything else. So how do I get nifty
projections like aea,lcc,merc,tmerc? Note this is the same list that
comes up for me when making a new location. Shouldn't that include all these
projections?

Yes it should. This is a severe weakness in GRASS.

Tim

================================================================
| Timothy H. Keitt Landscape and Systems |
| The University of New Mexico Ecology |
| Department of Biology |
| Albuquerque NM 87131 tkeitt@algodones.unm.edu |
| 505/277-3431 ftp://algodones.unm.edu/pub/tkeitt |

3

In info.grass.user you write:

Can someone explain how g.setproj works. According to the man page, it
should prompt for the projection. In practice howver, it seems to read
the proj from DEFAULT_WIND. The problem I'm finding is that the only
valid proj: values are:
0:(xy)
1:(utm)
2:(state plane)
3:(ll)
and g.setproj doesn't like anything else. So how do I get nifty
projections like aea,lcc,merc,tmerc? Note this is the same list that
comes up for me when making a new location. Shouldn't that include all these
projections?

Thanks in advance.

Quinn Hart (qjhart@ucdavis.edu)
Dept. Land, Air, and Water Resources
UC Davis

I think if you select "Other" (i.e. 99) when creating a new location,
g.setproj will ask you for a projection name other than those 4

Irina
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