NAME
v.rmdup - Remove duplicate items GRASS vector file. (GRASS
Vector Program)
SYNOPSIS
v.rmdup
v.rmdup help
v.rmdup input=name output=name
[threshold=value]
DESCRIPTION
v.rmdup removes duplicate lines, areas, and points from a binary
vector file (input). Duplicate may be defined as exact (less than
1.12e-16 for IEEE double precision), or defined with a threshold.
Parameters:
- input=name
- Name of a binary vector file
- output=name
- Name given to binary vector output file.
- threshold=value
- Threshold for defining duplicate lines, areas, and points.
The search technique used by v.rmdup is not extremely sophisticated
and may take a long time for large files. Instead, only two sets of lines,
areas, or points are active at any one time (so it is conservative with
memory).
SEE ALSO
v.clean,
v.digit,
v.prune,
v.spag,
v.support
AUTHOR
James Darrell McCauley, Purdue University
GRASS 5 fixes by Roger S. Miller