[GRASS-user] Map Display problems

GRASS GRASS user
1

Dear GRASS community,

I'm having some problem with the Map display (GRASS6.4.0RC3 with Tcl/Tk
GUI). It seems that the number of row and columns used to display is fixed
(482 x 642) and the resolution is changed consequently.

For example, using Spearfish data:

g.region -pd

projection: 1 (UTM)

zone: 13

datum: nad27

ellipsoid: clark66

north: 4928010

south: 4913700

west: 589980

east: 609000

nsres: 30

ewres: 30

rows: 477

cols: 634

cells: 302418

r.info -gs geology

north=4928000

south=4914000

east=609000

west=590000

nsres=100

ewres=100

To display the map geology on the Map Display, I choose the map with the GIS
Manager and I select the option "Zoom display to selected map" in the Map
Display. The map is displayed but with 482 rows and 642 columns and a
resolution of 29.595 m (instead of 100).

I also tried a region modification as follows:

g.region -p rast=geology

projection: 1 (UTM)

zone: 13

datum: nad27

ellipsoid: clark66

north: 4928000

south: 4914000

west: 590000

east: 609000

nsres: 100

ewres: 100

rows: 140

cols: 190

cells: 26600

and the option "Zoom display to computational region (set with g.region)" in
the Map display, but the map geology is displayed the same way as before.

The problem doesn't exist with GRASS6.2.3 and GRASS6.3.1.

Is there some setting to modify? May be I forgot some new option ?

Many thanks in advance

Aldo Clerici

Parma University

2

On Tue, 2009-02-03 at 16:24 +0100, Aldo Clerici wrote:
[...]

I also tried a region modification as follows:
> g.region –p rast=geology

Aldo, try without the "-p" flag. It will work. I think this "detail" was
not there before. Perhaps we should file a bug?

Kind regards, Nikos

3

Thanks Nikos,
but I discovered the problem. No bugs at all, it's simply because I didn't
realize that the last option in the menu of the Map Display "Map fills
display window" was on.
Sorry and thanks to you and everybody.

Aldo

-----Messaggio originale-----
Da: Nikos Alexandris [mailto:nikos.alexandris@felis.uni-freiburg.de]
Inviato: martedì 3 febbraio 2009 16.30
A: Aldo Clerici
Cc: grass-user@lists.osgeo.org
Oggetto: Re: [GRASS-user] Map Display problems

On Tue, 2009-02-03 at 16:24 +0100, Aldo Clerici wrote:
[...]

I also tried a region modification as follows:
> g.region –p rast=geology

Aldo, try without the "-p" flag. It will work. I think this "detail" was
not there before. Perhaps we should file a bug?

Kind regards, Nikos