Dear Titouan,
the library functions are described in detail in file doc/glpk.pdf of
the GLPK source distribution. Have a look at the chapter "Problem
retrieving routines". See for instance glp_get_mat_row() and
glp_get_mat_col().
Best regards
Heinrich
On 04/12/2018 12:12 PM, Andrew Makhorin wrote:
-------- Forwarded Message --------
From: SORANGE DELIEGE Titouan
To: help-glpk@gnu.org <help-glpk@gnu.org>
Subject: Help for GLPF java program
Date: Thu, 12 Apr 2018 10:32:40 +0200
Good morning,
I am currently working on a linear programming project using GLPK and
Java.
I have built the matrix that I need to give to GLPK (with the three
arguments ia, ja and ar with the glp_load_matrix method) and I have set
all the coefficients for each constraint of my problem.
I would like to print all the coefficients from the ar array to have an
overview of the matrix from GLPK (before the solving) but I don’t know
which function I should use for that. I tried to use
GLPK.glp_get_row_prim for each line and each column of that same line
(with a loop) but the values are all set at 0 and it seems fair as this
function is used for LP relaxation…
Thank you for your help.
Regards,
Titouan
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