A small program to remove duplicate vectors in a binary
vector file is available via anonymous ftp at
pasture.ecn.purdue.edu:/pub/mccauley/grass/v.rmdup.tar.ZIt should be considered pre-alpha, but it works on my test files.
So far, it only removes vectors that are exact duplicates
(all points are the same within threshold, within IEEE "wobbling
precision" tolerance. see iszero(3)), but in the future
I hope to add a threshold option which will increase this
the tolerance to remove "similar" vectors.Use at your own risk (read the man page on g.copy first).
--Darrell McCauley
For the record v.spag also does that. 4.0 had a rather nasty bug
in it, but in 4.1 it has been fixed and a -i option has been
added to tell it to just do that one function.
Now if you get the 'similar' feature working, lemme know. I can
come up with a bunch of cases to test it on.
--
Dave Gerdes
US Army Construction Engineering Research Lab
Spatial Analysis & Systems Team
dpgerdes@zorro.cecer.army.mil
(217) 352-6511 x591