FactIndex: Integer;
The FactIndex property determines index of the factor, by which data is obtained.
Executing the example requires that the repository contains multidimensional calculation on DB server with the MDCalc_1 identifier.
Sub Main;
Var
MB: IMetabase;
MDInst: IMDCalculationInstance;
Formulas: IMDCalculationFormulas;
Formula: IMDCalculationFormula;
FormulaExpression: IMDCalculationFormulaExpression;
Source: IMDCalculationSourceInstance;
Dest: IMDCalculationDestinationInstance;
Slices: IMDCalculationSlicesInstance;
Operand: IMDCalculationFormulaOperand;
DestCoo, SourceCoo: IMatrixCoord;
ElementKey, SourceElKey: IMDCalculationFormulaElementKey;
CoordOperand: IMDCalculationFormulaElement;
ConstOperand: IMDCalculationFormulaConstantValue;
BinaryOperand: IMDCalculationFormulaBinaryOperation;
i: Integer;
Begin
MB := MetabaseClass.Active;
MDInst := MB.ItemById("MDCalc_1").Open(Null) As IMDCalculationInstance;
Formulas := MDInst.CreateFormulas;
Formula := Formulas.Add;
FormulaExpression := Formula.Expression;
Source := MDInst.Sources.Item(0);
Slices := Source.Slices;
//Assign as an operand - coordinate in the source
Operand := FormulaExpression.CreateItem(MDCalculationFormulaOperandKind.Element);
SourceCoo := Source.NewCoord;
For i := 0 To Slices.Count - 1 Do
SourceCoo.Item(i) := 0;
End For;
SourceElKey := Source.CoordToKey(SourceCoo);
SourceElKey.FactIndex := 0;
CoordOperand := Operand As IMDCalculationFormulaElement;
CoordOperand.Key := SourceElKey;
FormulaExpression.InsertItem(Operand);
//Assign symbol * as an operand
Operand := FormulaExpression.CreateItem(MDCalculationFormulaOperandKind.BinaryOperation);
BinaryOperand := Operand As IMDCalculationFormulaBinaryOperation;
BinaryOperand.BinaryOperation := MDCalculationFormulaBinaryOperation.Mul;
FormulaExpression.InsertItem(Operand);
//Assign constant 3.14 as an operand
Operand := FormulaExpression.CreateItem(MDCalculationFormulaOperandKind.ConstantValue);
ConstOperand := Operand As IMDCalculationFormulaConstantValue;
ConstOperand.ConstantValue := 3.14;
FormulaExpression.InsertItem(Operand);
//Coordinate, by which formulas are written into the consumer
Dest := MDInst.Destination;
DestCoo := Dest.NewCoord;
Slices := Dest.Slices;
For i := 0 To Slices.Count - 1 Do
DestCoo.Item(i) := 0;
End For;
ElementKey := Dest.CoordToKey(DestCoo);
ElementKey.FactIndex := 0;
MDInst.WriteFormulas(ElementKey, Formulas);
End Sub Main;
After executing the example a formula is set for the element that corresponds to the first elements of data consumer dimensions. The value by coordinate in the data consumer is calculated by the formula: value by coordinate in the data source is multiplied by 3.14. Data is saved by the first factor of the consumer.
See also: