On 19/01/08 00:25, Luis E Menoyo wrote:
I'm using 1st order and 13 GCPs on an image and i.rectify has been
running over 3 hours. Is the process locking up or is this amount of
time normal in image rectification? Is i.rectify processing just the
area of the image to be rectified, of is it calculating for the whole
target mapset area? In other words, should I have applied a mask to the
target mapset before running the georectify tool in order to cut down on
processing time?
What are your region settings in the target location, especially the
resolution ? This can make an enormous difference in terms of
calculation time.
Moritz
Any info would be greatly appreciated.
Thanks!
Image info:
+----------------------------------------------------------------------------+
| Layer: [EMAIL PROTECTED] Date: Fri Jan 18 08:17:14
2008 |
| Mapset: PERMANENT Login of Creator: me |
| Location: x-y
|
| DataBase: /gis/oahu_flightlines |
| Title: ( D-10 )
|
| Timestamp: none
|
|----------------------------------------------------------------------------|
|
|
| Type of Map: raster Number of Categories: 255
|
| Data Type: CELL
|
| Rows: 4171
|
| Columns: 3280
|
| Total Cells: 13680880
|
| Projection: x,y
|
| N: 4171 S: 0 Res: 1
|
| E: 3280 W: 0 Res: 1
|
| Range of data: min = 0 max = 255
|
|
|
| Data Description:
|
| generated by r.in.gdal
|
|
|
| Comments:
|
| r.in.gdal input="/gis/oahu_flightlines/D/D-10\ |
| .jpg" output="D-10"
|
|
|
+----------------------------------------------------------------------------+
Computer:
Mac Pro 2.66GHz, 2 dualcore Intel Xeon (4 cores total), 4Gb RAM
GRASS:
GRASS 6.3.0RC4 (2008)
Luis E. Menoyo
U.S. Geological Survey
677 Ala Moana Blvd., Suite 415
Honolulu, HI 96813
[EMAIL PROTECTED]
808-587-2428
------------------------------------------------------------------------
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