1v.clip(1)                   GRASS GIS User's Manual                  v.clip(1)
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4

NAME

6       v.clip  - Extracts features of input map which overlay features of clip
7       map.
8

KEYWORDS

10       vector, clip, area
11

SYNOPSIS

13       v.clip
14       v.clip --help
15       v.clip [-dr] input=name clip=name output=name  [--overwrite]   [--help]
16       [--verbose]  [--quiet]  [--ui]
17
18   Flags:
19       -d
20           Do not dissolve clip map
21
22       -r
23           Clip by region
24
25       --overwrite
26           Allow output files to overwrite existing files
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28       --help
29           Print usage summary
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31       --verbose
32           Verbose module output
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34       --quiet
35           Quiet module output
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37       --ui
38           Force launching GUI dialog
39
40   Parameters:
41       input=name [required]
42           Name of vector map to be clipped
43           Or data source for direct OGR access
44
45       clip=name [required]
46           Name of clip vector map
47           Or data source for direct OGR access
48
49       output=name [required]
50           Name for output vector map
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DESCRIPTION

53       v.clip  module  enables  extracting those features of input vector map,
54       which overlay features of clip map, as well as their storing in  a  new
55       vector map.
56
57       In  default,  boundaries  of  clip  map  are dissolved before clipping.
58       Alternatively, flag -d can be ticked to retain the boundaries  of  clip
59       map. Flag -b facilitates clipping by current computational region.
60
61       It  is  possible to clip vector maps consisting of points, lines, areas
62       or combinations of these. However, the current version does  not  fully
63       support  clipping  of mixed geometry containing points. In such a case,
64       the output map will only store clipped lines and/or areas.
65

NOTES

67       v.clip is a front-end to v.overlay, as well as  v.select.  Clipping  of
68       areas  and/or lines can be achieved using v.overlay. Clipping of points
69       can be performed with v.select.
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EXAMPLES

72   Basic use
73       Clip railroads by counties Wake and Johnston in North  Carolina  (North
74       Carolina data set).
75       v.extract input=boundary_county where="NAME=’WAKE’ OR NAME=’JOHNSTON’" output=county_WAKE_JOHNSTON
76       v.clip input=railroads clip=county_WAKE_JOHNSTON output=railroads_WAKE_JOHNSTON
77       Figure: v.clip example - basic use
78
79   Retain boundaries of clip map
80       v.clip -d input=railroads clip=county_WAKE_JOHNSTON output=railroads_WAKE_JOHNSTON
81
82   Clip by current computational region
83       Clip  hospitals  by  computational region adjusted to counties Wake and
84       Johnston in North Carolina (North Carolina data set).  It is not oblig‐
85       atory  to  enter  name  of clip map. In case it is stated, the clip map
86       will be omitted.
87       v.extract input=boundary_county where="NAME=’WAKE’ OR NAME=’JOHNSTON’" output=county_WAKE_JOHNSTON
88       v.clip -r input=hospitals output=hospitals_clip
89       Figure: v.clip example - clip by computational region
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SEE ALSO

92        v.overlay, v.select, v.dissolve, v.in.region
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AUTHOR

95       Zofie Cimburova, GeoForAll Lab, Czech Technical University  in  Prague,
96       Czech Republic
97

SOURCE CODE

99       Available at: v.clip source code (history)
100
101       Main  index  | Vector index | Topics index | Keywords index | Graphical
102       index | Full index
103
104       © 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual
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108GRASS 7.8.5                                                          v.clip(1)
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