Hello,

To model my problem, I need to use Point(x-coordinate, y-coordinate), I can 
separate the point in two variables (IntVar), I obtain:

...
IntVar Px;
IntVar Py;

IntVar Gx;
IntVar Gy;

Different_Point(*this,Px,Py,Gx,Gy, ICL_DOM); // It is a new constraint which 
post propagator for Px != Gx and Py != Gy
...
  
I want to implement the variable PointVar to obtain a model like this:

...
PointVar P;
PointVar G;
Different_Point(*this, P, G, ICL_DOM);
...

This new variable is composed by two IntVar, I don't understand how to 
implement it, if you can
give me the first step to do this, or any documentation or information about 
the implementation of a new variable?

thank you,
amina.

                                          
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