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
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