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c#linear-programmingor-tools

How to change a Variable type using OR-Tools and C#

Can someone give me an example (whether possible) of how to change the type of a linear variable after its creation?

For instance, I created first an integer variable x, but at some later point in my code, I decided to relax x to a continuous variable.

I could not find a way to do such a thing using the OR-Tools C# wrapper. I looked over the Variable and LinearSolver classes, and I searched for this here on this site, the google forum, and the GitHub issues.

Thanks in advance!

Solution

  • You can use the following method in the variable class:

    var.SetInteger(false);

    See https://github.com/google/or-tools/blob/stable/ortools/linear_solver/csharp/linear_solver.i#L212