[GRASS-dev] i.warp added to wiki add-ons

Hamish hamish_nospam at yahoo.com
Sat Jul 22 02:53:25 EDT 2006


Hi,

I've added a script to the wiki add-ons page to rectify an image using
gdalwarp's thin plate spline method.

use r.in.gdal to load image into simple_xy location 
create imagery group, target (i.group, i.target)
use i.points to set GCPs
use i.warp to create a GeoTIFF referenced in the target projection.
  (takes raw import file as input, not raster map!)
change to the target location and import with r.in.gdal.

http://grass.gdf-hannover.de/wiki/GRASS_AddOns#Imagery_add-ons

beware bugs in gdalwarp? 
  http://bugzilla.remotesensing.org/show_bug.cgi?id=864


Hamish




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