[Cbc] Using CbcEventHandler to add cuts

[John Forrest]

Haroldo,

The addCuts event is just for cuts which are generated when standard 
code thinks it has a solution, so probably not what you want.

I think a derived CglCutGenerator is the correct approach.  It is 
possible with CbcMain0/1 - see driver4.cpp and case 3 of callBack which 
is called just before going into branch and bound.

John

On 15/01/16 18:57, Haroldo Gambini Santos wrote:
> Hi All,
>
> I would like to write a specialization of *CbcEventHandler* to add 
> cuts. Since I call cbc using CbcMain0 and CbcMain1 I think this 
> approach would be better than write a CglCutGenerator specialization.
>
> I see that in *CbcEventHandler* there is an action *addCuts*, which I 
> suppose that I should set after adding these cuts.
>
> My question is how should I add these cuts ???  Just add as rows in 
> CbcModel <http://www.coin-or.org/Doxygen/CoinAll/class_cbc_model.html> 
> * model 
> <http://www.coin-or.org/Doxygen/CoinAll/class_cbc_event_handler.html#5d73a3d17289f80bddf77f1f9e3543ee> 
> or there is a special way to indicate that I'm adding cuts ???
>
>
> Haroldo
> -- 
> ==================================================
> Haroldo Gambini Santos
> D.Sc, Computer Science
> Universidade Federal de Ouro Preto
> http://www.decom.ufop.br/haroldo/
>
>
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