v.fixed.segmentpoints - GRASS GIS manual

NAME

v.fixed.segmentpoints - segment points along a vector line with fixed distances

KEYWORDS

SYNOPSIS

v.fixed.segmentpoints

v.fixed.segmentpoints --help

v.fixed.segmentpoints vector=name cat=integer dir=name prefix=prefix [distance=integer] [--help] [--verbose] [--quiet] [--ui]

Flags:

--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

vector=name [required]: Name of input vector map; Or data source for direct OGR access
cat=integer [required]: Category of a vector line
dir=name [required]: Directory where the output will be found
prefix=prefix [required]: output prefix (must start with a letter)
distance=integer: fixed distance between segment points; Default: 100

DESCRIPTION
EXAMPLE
DEPENDENCIES
SEE ALSO
AUTHOR

DESCRIPTION

v.fixed.segmentpoints creates segment points along a vector line with fixed distances by using the v.segment module. A category of one line has to be given. Start and end point of the line will be considered. The distance option is limited to an integer number. As a prefix (starting with a letter) has to be given, resulting vectors are prefix_singleline and prefix_segmentpoints, resulting external files are prefix_segmentpoints and prefix_segmentpoints.csv.

The next to last point may be closer to the last point as the given distance. Distance information for every point is added to the vector attribute table. The attribute is then exported as CSV file.

The category (cat) of the input line is stored in the column cat_line of the prefix_segmentpoints attribute table.

EXAMPLE

  # NC sample data set
  v.fixed.segmentpoints vector=streams@PERMANENT cat=40102 dir=C:\tmp distance=25

DEPENDENCIES

v.segment

AUTHOR

Helmut Kudrnovsky

SOURCE CODE

Available at: v.fixed.segmentpoints source code (history)