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v.split(1grass) Grass User's Manual v.split(1grass)

NAME

v.split - Split lines to shorter segments.

KEYWORDS

vector, geometry

SYNOPSIS

v.split
 
v.split help
 
v.split input=name output=name [length=float] [ vertices=integer] [--overwrite] [-- verbose] [--quiet]

Flags:

--overwrite
 
Allow output files to overwrite existing files
--verbose
 
Verbose module output
--quiet
 
Quiet module output

Parameters:

input=name
 
Name of input vector map
output=name
 
Name for output vector map
length=float
 
Maximum segment length
vertices=integer
 
Maximum number of vertices in segment

DESCRIPTION

v.split split vector lines into shorter segments using a maximal distance between nodes.

EXAMPLE

Spearfish location:
 
# insert kilometric nodes to railroad map:
 
v.extract railroads out=myrr list=1
 
 
# join segments into polyline
 
v.build.polylines myrr out=myrr_pol
 
v.category myrr out=myrailroads option=add
 
 
# show line, category, direction (to find the beginning)
 
d.vect myrailroads disp=shape,cat,dir
 
 
# insert nodes at 1000m distance (max)
 
v.split railroads out=myrailroads_split length=1000
 
d.vect myrailroads_split disp=shape,topo
 

SEE ALSO

v.build.polylines, v.to.points, v.segment

AUTHOR

Radim Blazek
Last changed: $Date: 2014-03-10 18:03:37 +0100 (Mon, 10 Mar 2014) $
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GRASS 6.4.4