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v.to.lines(1grass) Grass User's Manual v.to.lines(1grass)

NAME

v.to.lines - Converts vector polygons or points to lines.

KEYWORDS

vector, geometry, area, line, point

SYNOPSIS

v.to.lines
v.to.lines --help
v.to.lines input=name output=name [method=string] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--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
output=name [required]

Name for output vector map
method=string

Method used for point interpolation
Options: delaunay
Default: delaunay

DESCRIPTION

v.to.lines converts vector polygons (boundaries) to lines as well as vector points to lines via triangulations.

NOTES

v.to.lines is able to convert point data (via triangulation) and areas to lines (via boundary to line conversion). This script is a wrapper script to v.category, v.delaunay, and v.edit.

In order to convert an ordered list of coordinates (ASCII table with x,y[,z] coordinates) into vector lines, use v.in.lines.

EXAMPLES

The examples are for the North Carolina sample dataset location:

Area to line conversion


v.to.lines input=boundary_municp output=boundary_municp_lines

Point to line conversion


v.to.lines input=geodetic_pts output=geodetic_pts_lines

SEE ALSO

v.category, v.delaunay, v.edit, v.in.lines, v.to.points, v.type

AUTHOR

Luca Delucchi, Fondazione Edmund Mach

Last changed: $Date: 2015-01-07 21:51:53 +0100 (Wed, 07 Jan 2015) $

SOURCE CODE

Available at: v.to.lines source code (history)

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© 2003-2016 GRASS Development Team, GRASS GIS 7.2.0 Reference Manual

GRASS 7.2.0