<br><font size=2 face="sans-serif">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?</font>
<br>
<br><font size=2 face="sans-serif">Any info would be greatly appreciated.</font>
<br><font size=2 face="sans-serif">Thanks!</font>
<br>
<br><font size=2 face="sans-serif">Image info:</font>
<br>
<br><tt><font size=2> +----------------------------------------------------------------------------+</font></tt>
<br><tt><font size=2> | Layer: D-10@PERMANENT
Date: Fri Jan 18 08:17:14
2008 |</font></tt>
<br><tt><font size=2> | Mapset: PERMANENT
Login of Creator:
me |</font></tt>
<br><tt><font size=2> | Location: x-y
|</font></tt>
<br><tt><font size=2> | DataBase: /gis/oahu_flightlines
|</font></tt>
<br><tt><font size=2> | Title: ( D-10 )
|</font></tt>
<br><tt><font size=2> | Timestamp: none
|</font></tt>
<br><tt><font size=2> |----------------------------------------------------------------------------|</font></tt>
<br><tt><font size=2> |
|</font></tt>
<br><tt><font size=2> | Type of Map: raster
Number of Categories: 255
|</font></tt>
<br><tt><font size=2> | Data Type: CELL
|</font></tt>
<br><tt><font size=2> | Rows: 4171
|</font></tt>
<br><tt><font size=2> | Columns: 3280
|</font></tt>
<br><tt><font size=2> | Total Cells: 13680880
|</font></tt>
<br><tt><font size=2> | Projection: x,y
|</font></tt>
<br><tt><font size=2> | N:
4171 S: 0
Res: 1
|</font></tt>
<br><tt><font size=2> | E:
3280 W: 0
Res: 1
|</font></tt>
<br><tt><font size=2> | Range of data: min = 0
max = 255
|</font></tt>
<br><tt><font size=2> |
|</font></tt>
<br><tt><font size=2> | Data Description:
|</font></tt>
<br><tt><font size=2> | generated by r.in.gdal
|</font></tt>
<br><tt><font size=2> |
|</font></tt>
<br><tt><font size=2> | Comments:
|</font></tt>
<br><tt><font size=2> | r.in.gdal input="/gis/oahu_flightlines/D/D-10\
|</font></tt>
<br><tt><font size=2> | .jpg" output="D-10"
|</font></tt>
<br><tt><font size=2> |
|</font></tt>
<br><tt><font size=2> +----------------------------------------------------------------------------+</font></tt>
<br>
<br><font size=2 face="sans-serif">Computer:</font>
<br>
<br><font size=2 face="sans-serif">Mac Pro 2.66GHz, 2 dualcore Intel Xeon
(4 cores total), 4Gb RAM</font>
<br>
<br><font size=2 face="sans-serif">GRASS:</font>
<br>
<br><font size=2 face="sans-serif">GRASS 6.3.0RC4 (2008) </font>
<br>
<br>
<br>
<br><font size=2 face="sans-serif">Luis E. Menoyo<br>
U.S. Geological Survey<br>
677 Ala Moana Blvd., Suite 415<br>
Honolulu, HI 96813<br>
lemenoyo@usgs.gov<br>
808-587-2428</font>