v.clip(1grass) GRASS GIS User's Manual v.clip(1grass)
NAME
v.clip - Extracts features of input map which overlay features of clip
map.
KEYWORDS
vector, clip, area
SYNOPSIS
v.clip
v.clip --help
v.clip [-dr] input=name clip=name output=name [--overwrite] [--help]
[--verbose] [--quiet] [--ui]
Flags:
-d
Do not dissolve clip map
-r
Clip by region
--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 vector map to be clipped
Or data source for direct OGR access
clip=name [required]
Name of clip vector map
Or data source for direct OGR access
output=name [required]
Name for output vector map
DESCRIPTION
v.clip module enables extracting those features of input vector map,
which overlay features of clip map, as well as their storing in a new
vector map.
In default, boundaries of clip map are dissolved before clipping. Al-
ternatively, flag -d can be ticked to retain the boundaries of clip
map. Flag -b facilitates clipping by current computational region.
It is possible to clip vector maps consisting of points, lines, areas
or combinations of these. However, the current version does not fully
support clipping of mixed geometry containing points. In such a case,
the output map will only store clipped lines and/or areas.
NOTES
v.clip is a front-end to v.overlay, as well as v.select. Clipping of
areas and/or lines can be achieved using v.overlay. Clipping of points
can be performed with v.select.
EXAMPLES
Basic use
Clip railroads by counties Wake and Johnston in North Carolina (North
Carolina data set).
v.extract input=boundary_county where="NAME=’WAKE’ OR NAME=’JOHNSTON’" output=county_WAKE_JOHNSTON
v.clip input=railroads clip=county_WAKE_JOHNSTON output=railroads_WAKE_JOHNSTON
Figure: v.clip example - basic use
Retain boundaries of clip map
v.clip -d input=railroads clip=county_WAKE_JOHNSTON output=railroads_WAKE_JOHNSTON
Clip by current computational region
Clip hospitals by computational region adjusted to counties Wake and
Johnston in North Carolina (North Carolina data set). It is not oblig-
atory to enter name of clip map. In case it is stated, the clip map
will be omitted.
v.extract input=boundary_county where="NAME=’WAKE’ OR NAME=’JOHNSTON’" output=county_WAKE_JOHNSTON
v.clip -r input=hospitals output=hospitals_clip
Figure: v.clip example - clip by computational region
SEE ALSO
v.overlay, v.select, v.dissolve, v.in.region
AUTHOR
Zofie Cimburova, GeoForAll Lab, Czech Technical University in Prague,
Czech Republic
SOURCE CODE
Available at: v.clip source code (history)
Accessed: unknown
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GRASS 7.8.7 v.clip(1grass)
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