GNMANALYSE(1)

NAME
gnmanalyse - Analyses networks

SYNOPSIS

    Usage: gnmanalyse [--help][--help-general][-q][-quiet][--long-usage]
                      [dijkstra <start_gfid> <end_gfid [-alo <NAME>=<VALUE>]...]
                      [kpaths <start_gfid> <end_gfid> <k> [-alo NAME=VALUE]...]
                      [resource [-alo <NAME>=<VALUE>]...]
                      [-ds <ds_name>][-f <ds_format>][-l <layer_name>]
                      [-dsco <NAME>=<VALUE>]... [-lco <NAME>=<VALUE>]...
                      <gnm_name>

DESCRIPTION

The gnmanalyse program provides analysing capabilities of geographical networks in GDAL. The results of calculations are return in an OGRLayer format or as a console text output if such layer is undefined. All calculations are made considering the blocking state of features.

--help
    Show this help message and exit

--help-general
    Gives a brief usage message for the generic GDAL commandline options and exit.

dijkstra <start_gfid> <end_gfid>
    Calculates the best path between two points using Dijkstra algorithm from start_gfid point to end_gfid point.

kpaths <start_gfid> <end_gfid>
    Calculates K shortest paths between two points using Yen's algorithm (which internally uses Dijkstra algorithm for single path calculating) from start_gfid point to end_gfid point.

resource
    Calculates the "resource distribution". The connected components search is performed using breadth-first search and starting from that features which are marked by rules as 'EMITTERS'.

-d <ds_name>
    The name and path of the dataset to save the layer with resulting paths. Not need to be existed dataset.

-f <ds_format>
    Define this to set the format of newly created dataset.

-l <layer_name>
    The name of the resulting layer. If the layer exist already - it will be rewritten.

<gnm_name>
    The network to work with (path and name).

-dsco <NAME>=<VALUE>
    Dataset creation option (format specific)

-lco <NAME>=<VALUE>
    Layer creation option (format specific)

-alo <NAME>=<VALUE>
    Algorithm option (format specific)

RETURN STATUS CODE

The program returns status code 0 in case of success, and non-zero in case of error (non-blocking errors emitted as warnings are considered as a successful execution).

AUTHOR
Mikhail Gusev <gusevmihs@gmail.com>, Dmitry Baryshnikov <polimax@mail.ru>

COPYRIGHT
1998-2026