[Help-glpk] Building a graph on the fly

[Sylvain Fournier]

Hi all,

I need to solve a minimum cost flow problem in Java, and for this I'd like to use the Out-Of-Kilter algorithm included in GLPK. I saw there is a way to build the graph reading the information from a text file (glp_read_graph), however I wonder whether I can do it on the fly, using some routines that modify the graph.

I saw I can use for example glp_create_graph, glp_add_vertices, glp_add_arc. On the other hand, I can't find a way to create or modify the data associated with a vertex (demand) or an arc (capacity, cost). I had no success in searching either into the mailing list archives, or in the files included in the GLPK distribution (examples and documentation). Did I miss something?

Cheers,

-- 
Sylvain Fournier

Analista de Pesquisa Operacional
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