[GRASSLIST:6491] XYZ Data to raster for orthorectification

GRASS GRASS user
1

Can someone point me in the right direction how to import xyz data like:

102320.0934,1120983.0233,123.442
123123.3123,1235032.1234,123.685
....

into a grass raster?

Thanks,

Steven B. Mullins, P.E.
Environmental Engineer
Virginia Department of Mined Land Reclamation
P.O. Drawer 900, Big Stone Gap, VA 24219
tel. 276.523.8192
fax 276.523.8141

2

Can someone point me in the right direction how to import xyz data
like:

102320.0934,1120983.0233,123.442
123123.3123,1235032.1234,123.685
....

into a grass raster?

Well, 3D point data may be imported with v.in.ascii, e.g.

cat input_points.txt | v.in.ascii -z out=orthopoints fs=, x=1 y=2 z=3

but I don't know much about rectifying orthophotos, so that's about all
the help I can give. (see the i.ortho.photo help page?)

Hamish