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Re: [Help-glpk] Building a graph on the fly

From: Sylvain Fournier
Subject: Re: [Help-glpk] Building a graph on the fly
Date: Tue, 17 Apr 2012 16:35:30 -0300

Ok, thanks Xypron. Then I'll wait for these structures to be ready.


2012/4/17 glpk xypron <address@hidden>
Hello Sylvain,

glp_arc and glp_vertex both have a field data in which information like

double a_cap; // arc capacity
double a_cost; // arc cost
double a_low; // lower bound
double a_x; // arc flow

int v_cut; // 0: node is unlabelled, 1: node is labelled
double v_pi; // node potential
double v_rhs; // supply/demand value
int v_set; // 0: vertex is in set R, 1: vertex is in set S

is stored.

glpk.h does not provide structures with these fields.

I will have to change the GLPK for Java code to provide these structures and the constants needed (length of the data fields, and offsets).

Best regards


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