How to obtain the model after decomposition?

[haoyangliu123]

Dear support team,

I use pygcgopt 0.2.1 to decompose a MILP model and I want to obtain the decomposed model in the lp or mps format. But I can only find the dec format or the visualization results of the decomposed model.
I wonder whether there are some APIs to get the lp or mps format.

All the best
Regards

[jurgen-lentz]

Dear user,

You can use the same function writeProblem() as for the dec files but the parameter string should end with lp or mps (Note: Neither the lp nor the mps format can save information about the decomposition. The only format that can do this is the dec format, as of today.)

Best wishes,
Jurgen

[haoyangliu123]

Dear @jurgen-lentz,

Thanks so much for your reply! I still have a problem: I want to save a collection of the visualization results in the .png or .jpg format. I want to perform this procedure in a .py file. Could you please provide some useful advice?

Best regards