chenqinghong
2024-05-07 3ec06a830367465068963156dcc1d8e522571c13
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Quintiq file version 2.0
#parent: #root
Method InitConstraintsForCampaignCalcDurationOfElementTypeStart (
  CapacityPlanningSuboptimizer_CapacityPlanningAlgorithm program,
  const LibOpt_Scope scope
) const
{
  TextBody:
  [*
    campaigndurationstart_constname := typeof( MPCalcDurationOfElementTypeStartConstraint );
    scalefactor_DurationOfCampaignElementTypeStart_const := this.ScaleConstraintTerm( typeof( MPDurationOfCampaignElementTypeStartVariable ), campaigndurationstart_constname );
    scalefactor_IsFirst_const := this.ScaleConstraintTerm( typeof( MPIsFirstCampaignElementTypeVariable ), campaigndurationstart_constname );
    
    traverse( scope.GetUnitPeriodInOptimizerRunConst(), Elements.OptCampaignUnitSubPeriod, ocusp )
    {
      traverse( ocusp, OptCampaignCombiElement.OptCampaignElementType, ocet )
      {
        constr := program.CalcDurationOfElementTypeStartConstraints().New( ocet, ocusp );
        
        // Adding duration campaign element type start variable to constraint
        vardurationstart := program.DurationOfCampaignElementTypeStartVariables().Get( ocet, ocusp );
        constr.NewTerm( 1.0 * scalefactor_DurationOfCampaignElementTypeStart_const, vardurationstart ); 
        
        // subtracting BigM which is the min between campaign max duration and the period duration
        bigm := minvalue( ifexpr( ocet.HasMaxDuration(), ocet.MaxDuration(), Duration::MaxDuration() ), ocusp.UnitPeriod().Duration() ).HoursAsReal();
        isfirst := program.IsFirstCampaignElementTypeVariables().Get( ocet, ocusp );
        constr.NewTerm( -bigm * scalefactor_IsFirst_const, isfirst );
      }
    }
  *]
  InterfaceProperties { Accessibility: 'Module' }
}