public static ClSimplexSolver AddPointStay(this ClSimplexSolver solver, ClPoint clp, double weight)
{
solver.AddStay(clp.X, ClStrength.Weak, weight);
solver.AddStay(clp.Y, ClStrength.Weak, weight);
return(solver);
}
public static ClSimplexSolver AddPointStay(this ClSimplexSolver solver, ClVariable vx, ClVariable vy, double weight)
{
solver.AddStay(vx, ClStrength.Weak, weight);
solver.AddStay(vy, ClStrength.Weak, weight);
return(solver);
}
private static ClSimplexSolver AddConstraint(this ClSimplexSolver solver, IDictionary <string, ClAbstractVariable> variables, Expression body, ClStrength strength)
{
var constraints = FromExpression(variables, body, strength ?? _defaultStrength);
foreach (var c in constraints)
{
solver.AddConstraint(c);
}
return(solver);
}
/// <summary>
/// Add weak stays to the x and y parts of each point. These
/// have increasing weights so that the solver will try to satisfy
/// the x and y stays on the same point, rather than the x stay on
/// one and the y stay on another.
/// <param name="points">
/// List of points to add weak stay constraints for.
/// </param>
/// </summary>
public static ClSimplexSolver AddPointStays(this ClSimplexSolver solver, IEnumerable <ClPoint> points)
{
double weight = 1.0;
const double MULTIPLIER = 2.0;
foreach (ClPoint p in points)
{
solver.AddPointStay(p, weight);
weight *= MULTIPLIER;
}
return(solver);
}
public static ClSimplexSolver AddPointStay(this ClSimplexSolver solver, ClPoint clp)
{
solver.AddPointStay(clp, 1.0);
return(solver);
}
public static ClSimplexSolver AddPointStay(this ClSimplexSolver solver, ClVariable vx, ClVariable vy)
{
solver.AddPointStay(vx, vy, 1.0);
return(solver);
}
private static ClSimplexSolver AddConstraint(this ClSimplexSolver solver, IEnumerable <ParameterExpression> parameters, Expression body, ClStrength strength)
{
Dictionary <string, ClAbstractVariable> variables = parameters.Select(a => solver.GetVariable(a.Name) ?? new ClVariable(a.Name)).ToDictionary(a => a.Name);
return(AddConstraint(solver, variables, body, strength));
}
public static ClSimplexSolver AddConstraint(this ClSimplexSolver solver, ClAbstractVariable a, ClAbstractVariable b, ClAbstractVariable c, ClAbstractVariable d, Expression <Func <double, double, double, double, bool> > constraint, ClStrength strength = null)
{
Dictionary <string, ClAbstractVariable> variables = ConstructVariables(constraint.Parameters, a, b, c, d);
return(AddConstraint(solver, variables, constraint.Body, strength));
}
public static ClSimplexSolver AddConstraint(this ClSimplexSolver solver, Expression <Func <double, double, double, double, bool> > constraint, ClStrength strength = null)
{
return(AddConstraint(solver, constraint.Parameters, constraint.Body, strength));
}