1v.parallel(1) Grass User's Manual v.parallel(1)
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6 v.parallel - Creates parallel line to input vector lines.
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9 vector, geometry, buffer, line
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12 v.parallel
13 v.parallel --help
14 v.parallel [-rb] input=name [layer=string] output=name distance=float
15 [minordistance=float] [angle=float] side=string [tolerance=float]
16 [--overwrite] [--help] [--verbose] [--quiet] [--ui]
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18 Flags:
19 -r
20 Make outside corners round
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22 -b
23 Create buffer-like parallel lines
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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
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40 Parameters:
41 input=name [required]
42 Name of input vector map
43 Or data source for direct OGR access
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45 layer=string
46 Layer number or name (’-1’ for all layers)
47 A single vector map can be connected to multiple database tables.
48 This number determines which table to use. When used with direct
49 OGR access this is the layer name.
50 Default: -1
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52 output=name [required]
53 Name for output vector map
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55 distance=float [required]
56 Offset along major axis in map units
57 Options: 0-100000000
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59 minordistance=float
60 Offset along minor axis in map units
61 Options: 0-100000000
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63 angle=float
64 Angle of major axis in degrees
65 Default: 0
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67 side=string [required]
68 Side
69 Options: left, right, both
70 Default: right
71 left: Parallel line is on the left
72 right: Parallel line is on the right
73 both: Parallel lines on both sides
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75 tolerance=float
76 Tolerance of arc polylines in map units
77 Options: 0-100000000
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80 v.parallel creates parallel lines to the input vector lines which can
81 be used as half-buffers.
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84 Usage of -b flag will overrule the side parameter.
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87 There is a problem with side-offset parallel line generation for inside
88 corners. To avoid this problem, the -b flag might be used.
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91 v.buffer
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94 Radim Blazek
95 Rewritten by Rosen Matev (with support through the Google Summer of
96 Code program 2008)
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98 Last changed: $Date: 2015-05-11 02:11:34 +0200 (Mon, 11 May 2015) $
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101 Available at: v.parallel source code (history)
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103 Main index | Vector index | Topics index | Keywords index | Graphical
104 index | Full index
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106 © 2003-2019 GRASS Development Team, GRASS GIS 7.6.0 Reference Manual
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110GRASS 7.6.0 v.parallel(1)