Analyses networks


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>]...


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.


Show this help message and exit


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.


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.


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)