gnmanalyse(1)

GNMANALYSE(1)

GDAL

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)

AUTHOR

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

COPYRIGHT

1998-2026

May 28, 2026