table of contents
| 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:¶
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: Sunday Jan 22 07:37:10 2023
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© 2003-2023 GRASS Development Team, GRASS GIS 8.2.1 Reference Manual
| GRASS 8.2.1 |