IMsUORuntime.Equations

Syntax

Description

The Equations property returns the collection of equations, according to which calculation is executed.

Example

Executing the example requires that the repository contains a modeling container containing a custom optimization model. The problem should have a unit that implements a custom algorithm. Consider the example of this unit contents.

Add links to the Ms and Xml system assemblies.

Public Class UserOptimization: Object, IMsUserOptimizationCallback
    Public Sub OnLoad(Xml: IXMLDOMElement);
    Begin
    End Sub OnLoad;

    Public Sub OnSave(Xml: IXMLDOMElement);
    Begin
    End Sub OnSave;

    Public Sub OnBeforeExecute(Calculation: IMsMethodCalculation; Coord: IMsFormulaTransformCoord; Problem: IMsUserOptimizationProblem);
    Begin
    End Sub OnBeforeExecute;

    Public Sub OnExecute(Runtime: IMsUORuntime);
    Var
        Equations: IMsUORuntimeEquations;
        Equation: IMsUORuntimeEquation;
        i, c: Integer;
    Begin
        Equations := Runtime.Equations;
        c := Equations.Count;
        Debug.WriteLine("--------------------------------------");
        For i := 0 To c - 1 Do
            Debug.WriteLine("Equation " + i.ToString);
            Equation := Equations.Item(i);
            Equation.Execute;
            Debug.Indent;
            Debug.WriteLine("Method type: " + Equation.Formula.Kind.ToString);
            Debug.WriteLine("Result: " + Equation.Result);
            Debug.Unindent;
        End For;
    End Sub OnExecute;

    Public Sub OnAfterExecute(Calculation: IMsMethodCalculation; Coord: IMsFormulaTransformCoord; Problem: IMsUserOptimizationProblem);
    Begin
    End Sub OnAfterExecute;

    Public Sub OnSetupParams(Params: IMsModelParams);
    Begin
    End Sub OnSetupParams;
End Class UserOptimization;

When a custom optimization problem is is started, the OnExecute event will occur in each calculation point. The development environment console will display the equation values calculated in the current point.