v.parallel(1grass) GRASS GIS User's Manual v.parallel(1grass)
NAME
v.parallel - Creates parallel line to input vector lines.
KEYWORDS
vector, geometry, buffer, line
SYNOPSIS
v.parallel
v.parallel --help
v.parallel [-rb] input=name [layer=string] output=name distance=float
[minordistance=float] [angle=float] side=string [tolerance=float]
[--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
-r
Make outside corners round
-b
Create buffer-like parallel lines
--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog
Parameters:
input=name [required]
Name of input vector map
Or data source for direct OGR access
layer=string
Layer number or name (’-1’ for all layers)
A single vector map can be connected to multiple database tables.
This number determines which table to use. When used with direct
OGR access this is the layer name.
Default: -1
output=name [required]
Name for output vector map
distance=float [required]
Offset along major axis in map units
Options: 0-100000000
minordistance=float
Offset along minor axis in map units
Options: 0-100000000
angle=float
Angle of major axis in degrees
Default: 0
side=string [required]
Side
Options: left, right, both
Default: right
left: Parallel line is on the left
right: Parallel line is on the right
both: Parallel lines on both sides
tolerance=float
Tolerance of arc polylines in map units
Options: 0-100000000
DESCRIPTION
v.parallel creates parallel lines to the input vector lines which can
be used as half-buffers.
NOTES
Usage of -b flag will overrule the side parameter.
KNOWN ISSUES
There is a problem with side-offset parallel line generation for inside
corners. To avoid this problem, the -b flag might be used.
SEE ALSO
v.buffer
AUTHORS
Radim Blazek
Rewritten by Rosen Matev (with support through the Google Summer of
Code program 2008)
SOURCE CODE
Available at: v.parallel source code (history)
Accessed: unknown
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GRASS 7.8.7 v.parallel(1grass)
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