/// <summary>
/// Protected Constructor
/// </summary>
/// <param name="modelName"></param>
/// <param name="getSolution"></param>
/// <param name="problemType"></param>
protected OrLinearProblemSolverBase(string modelName,
GetSolutionDelegate getSolution,
OptimizationProblemType problemType = DefaultProblemType)
: base(modelName)
{
_getSolution = getSolution;
_problemType = problemType;
}
/// <summary>
/// Returns the <see cref="Google.OrTools.LinearSolver.Solver"/> <paramref name="value"/>
/// for use.
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
internal static int ForSolver(this OptimizationProblemType value)
{
try
{
return(LazyOptimizationProblemTypes.Value[value]);
}
catch (Exception ex)
{
throw new ArgumentException($"Optimization problem type '{value}' is not currently implemented",
nameof(value), ex);
}
}
// ???? p => p.o.Value()
// Apparently not testing this: p => p.x.SolutionValue() + 7d*p.y.SolutionValue() = 17 (integer)
protected FeasibleRegionComparisonProblemSolverBase(OptimizationProblemType problemType)
: base(@"Feasible Integer Region", p => p.o.Value(), problemType)
{
}
public OptimizationProblem(Func <double[], double> costFunction, OptimizationProblemType type = OptimizationProblemType.Minimization)
{
CostFunction = costFunction;
Type = type;
}
/// <summary>
/// Protected Constructor
/// </summary>
/// <param name="modelName"></param>
/// <param name="problemType"></param>
protected OrLinearProblemSolverBase(string modelName,
OptimizationProblemType problemType = DefaultProblemType)
: base(modelName, p => true, problemType)
{
}
