[GRASS-dev] Request to add a GCP file in vector directories

[Michael Barton]

I¹m integrating vector georectification (v.transform) into the GIS Manager
georectifier. It would be nice if a GCP file could be saved in a vector
folder so that it could be called up, edited, and reused and a user doesn¹t
have to re-enter GCP¹s every time they start the georectifier. This is the
case now for rasters, because a GCP file (POINTS) is saved inside the group
folder for a raster group.

I¹m proposing to have the georectifier (at the user¹s option) save a file
named ³gcp² (points might be confusing in a vector folder) in the
appropriate vector folder to be rectified. It would be a simple ascii text
file and take the format of the standard file needed by v.transform, with
the addition of a header indicating the target location and mapset it is
aimed at. For example...

# target: /Users/shared/grassdata/spearfish60/newvector
-584 585  598000 4920770
580  585  598020 4920770
580  -600 598020 4920750
-584 -600 598000 4920750

Does anyone foresee a problem with this?

Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton


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