| Description | Hierarchy | Fields | Methods | Properties | 
type TGhbBoundary = class(TSpecificModflowBoundary)
TGhbBoundary represents the MODFLOW General-Head boundaries associated with a single TScreenObject.
FormulaInterpretation determines whether the TGhbItem.Conductance formulas represent
fiSpecific - Conductance / the length or area of intersection between the TScreenObject and grid cell.
fiTotal - Conductance.
TGhbCollection represents MODFLOW General Head boundaries for a series of time intervals.![]()  | 
procedure TestIfObservationsPresent(var EndOfLastStressPeriod: Double; var StartOfFirstStressPeriod: Double; var ObservationsPresent: Boolean); | 
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procedure AssignCells(BoundaryStorage: TCustomBoundaryStorage; ValueTimeList: TList; AModel: TBaseModel); override; | 
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class function BoundaryCollectionClass: TMF_BoundCollClass; override; | 
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class function ModflowParamItemClass: TModflowParamItemClass; override; | 
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function ParameterType: TParameterType; override; | 
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procedure GetCellValues(ValueTimeList: TList; ParamList: TStringList; AModel: TBaseModel); override; | 
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procedure InvalidateDisplay; override; | 
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procedure TestIfObservationsPresent(var EndOfLastStressPeriod: Double; var StartOfFirstStressPeriod: Double; var ObservationsPresent: Boolean); | 
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procedure AssignCells(BoundaryStorage: TCustomBoundaryStorage; ValueTimeList: TList; AModel: TBaseModel); override; | 
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class function BoundaryCollectionClass: TMF_BoundCollClass; override; | 
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class function ModflowParamItemClass: TModflowParamItemClass; override; | 
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function ParameterType: TParameterType; override; | 
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procedure GetCellValues(ValueTimeList: TList; ParamList: TStringList; AModel: TBaseModel); override; | 
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procedure InvalidateDisplay; override; |