IMsProblemCalculation.StepDate

Syntax

StepDate;

Description

The StepDate method executes step-by-step calculation of modeling problem by calendar frequency points.

Comments

On one step, all models for all scenarios on a certain date are calculated.

Example

Executing the example requires that the repository includes a modeling container with the MODEL_SPACE identifier including a modeling problem with the PROBLEM identifier.

Add links to the Matrix, Metabase, Ms system assemblies.

Sub StepDate;
Var
    mb: IMetabase;
    MSKey: Integer;
    Problem: IMsProblem;
    Setts: IMsProblemCalculationSettings;
    Calc: IMsProblemCalculation;
    State: IMsCalculationState;
    Model: IMsModel;
    Slice: IMsFormulaTransformSlice;
    MatrixDS: IMatrixDataSource;
    Matr: IMatrix;
    Iter: IMatrixIterator;
    TrVar: IMsFormulaTransformVariable;
Begin
    mb := MetabaseClass.Active;
    // Get modeling problem
    MSKey := mb.GetObjectKeyById("MODEL_SPACE");
    Problem := mb.ItemByIdNamespace("PROBLEM", MSKey).Bind As IMsProblem;
    // Create problem calculation settings
    Setts := Problem.CreateCalculationSettings;
    // Perform step-by-step calculation of the problem
    Calc := Problem.Calculate(Setts);
    Repeat
        Calc.StepDate;
        State := Calc.CalculationState;
        Debug.WriteLine(State.Message);
    Until State.Model <> Null;
    // Display the information about the name of the calculated model
    Model := State.Model;
    Debug.WriteLine("Model: " + Model.Name);
    // Get output variable data
    TrVar := Model.Transform.Outputs.Item(0);
    Slice := TrVar.Slices.Item(0);
    MatrixDS := State.DataMultiDim(Slice);
    Matr := MatrixDS.Execute(Null);
    // Display output variable data
    Debug.WriteLine("Current values of modeling variable '" + TrVar.Name + "'");
    Iter := Matr.CreateIterator;
    Iter.Move(IteratorDirection.First);
    While Iter.Valid Do
        Debug.WriteLine(" " + Iter.Value);
        Iter.Move(IteratorDirection.Next);
    End While;
    // Abort problem calculation
    Calc.Stop;
End Sub StepDate;

Example execution result: step-by-step calculation of the PROBLEM problem is started, after calculation the name of the calculated model and data of the output variable are displayed in the console window.