Quintiq file version 2.0 
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#parent: #root 
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DeclarativeReferenceRelation CalcAsCapacitySmoothingHead 
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{ 
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  #keys: '1[108486.2.194371047]' 
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  Description: 'UnitPeriod is a capacity smoothing head if(CapacitySmoothingSeqNr mod CapacitySmoothingLength = 0) or overlapped smoothing is enabled.' 
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  Expression: 
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  [* 
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    value := null( Unit ); 
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    if( not isnull( this.AsCapacitySmoothingUnitPeriod() ) 
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        and ( this.CapacitySmoothingSequenceNr() mod ( this.Unit().CapacitySmoothingLength() -1 ) = 0 
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              or this.Unit().IsOverlapCapacitySmoothing() ) ) 
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    { 
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      value := this.Unit(); 
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    } 
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    return value; 
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  *] 
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  Relation: AsCapacitySmoothingHead 
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} 
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