[GRASS-user] r.contour crashing

[Micha Silver]

I've not been successful running r.contour on a raster which I made 
doing r.patch on a few SRTM tiles. After r.contour runs for a short 
while, disk activity goes up, and the progress indicator stops. Then 
after another minute, "killed" appears and the contour vector is not 
properly created. I tried with a smaller subsection of the raster, and 
it succeeded. Here's r.info on the raster that fails:

GRASS 6.2.3 (WGS84):~/geodata/ethiopia > r.info ethiopia_srtm
 +----------------------------------------------------------------------------+
 | Layer:    ethiopia_srtm                  Date: Sat Feb  9 11:13:04 
2008    |
 | Mapset:   PERMANENT                      Login of Creator: 
micha           |
 | Location: 
WGS84                                                            |
 | DataBase: 
/home/micha/geodata/grass                                        |
 | Title:     ( srtm_eth 
)                                                    |
 | timestamp: 
none                                                            |
 |----------------------------------------------------------------------------|
 |                                                                            
|
 |   Type of Map:  raster               Number of Categories: 
4517            |
 |   Data Type:    
CELL                                                       |
 |   Rows:         
14400                                                      |
 |   Columns:      
18000                                                      |
 |   Total Cells:  
259200000                                                  |
 |        Projection: Latitude-Longitude (zone 
0)                             |
 |            N:        15N    S:         3N   Res: 
0:00:03                   |
 |            E:        46E    W:        31E   Res: 
0:00:03                   |
 |   Range of data:    min = -197  max = 
4517                                 |
 |                                                                            
|
 |   Data 
Source:                                                             |
 |                                                                            
|
 |                                                                            
|
 |                                                                            
|
 |   Data 
Description:                                                        |
 |    generated by 
r.patch                                                    |
 |                                                                            
|
 |   
Comments:                                                                |
 |    r.patch input="srtm_eth3,44_12" 
output="srtm_eth"                       |
 |                                                                            
|
 +----------------------------------------------------------------------------+


Is the region too large?

Thanks,
Micha

-- 
Micha Silver
Arava Development Co, Sapir, Israel
tel: +972(8)6592270
cell: +972(52)3665918