NAME

       v.net.bridge  - Computes bridges and articulation points in the network.

KEYWORDS

       vector, network, articulation points

SYNOPSIS

       v.net.bridge
       v.net.bridge help
       v.net.bridge   input=name   output=name    [layer=integer]   method=string   [--overwrite]
       [--verbose]  [--quiet]

   Flags:
       --overwrite
           Allow output files to overwrite existing files

       --verbose
           Verbose module output

       --quiet
           Quiet module output

   Parameters:
       input=name
           Name of input vector map

       output=name
           Name for output vector map

       layer=integer
           Layer number
           A single vector map  can  be  connected  to  multiple  database  tables.  This  number
           determines which table to use.
           Default: 1

       method=string
           Feature type
           Options: bridge,articulation
           bridge: Finds bridges
           articulation: Finds articulation points

DESCRIPTION

       v.net.bridge finds bridges and articulation points in a network.

NOTES

       Bridge  in  a  network is an edge/line whose removal would disconnect the (sub-)network. A
       node is an articulation point if its removal would disconnect the (sub-)network. For  more
       information  and  formal  definitions check the wikipedia entries: bridge and articulation
       point.

       The output of  the  module  contains  the  selected  features.  For  method=bridge,  lines
       corresponding  to  bridges  are  copied from the input map to the output map. On the other
       hand, for method=articulation, points are created on the positions of articulation points.

       In GRASS GIS, line is not always a single line segment. It  might  be,  and  often  is,  a
       sequence  of  line  segments  between  two  intersections.  Also,  articulation point is a
       standard  graph  theoretic  terminology  which  is  slightly  misleading  in  GRASS.    An
       articulation point in graph theory is an articulation node in GRASS terminology.

EXAMPLES

            TBD

SEE ALSO

        v.net, v.category,

AUTHORS

       Daniel Bundala, Google Summer of Code 2009, Student
       Wolf Bergenheim, Mentor

       Last changed: $Date: 2013-05-23 13:01:55 -0700 (Thu, 23 May 2013) $

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       © 2003-2013 GRASS Development Team