Class TIfcGeometricRepresentationContext
Unit
Declaration
type TIfcGeometricRepresentationContext = class(TIfcRepresentationContext)
Description
Context that applies to several shape representations of products within a project.
Hierarchy
- TObject
- TPersistent
- TComponent
- TIfcPersistent
- TIfcRepresentationContext
- TIfcGeometricRepresentationContext
Overview
Fields
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nested const TypeModel = 'Model'; |
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nested const TypePlan = 'Plan'; |
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nested const TypeNotDefined = 'NotDefined'; |
Methods
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function WantsGlobalId: Boolean; override; |
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constructor Create(AOwner: TComponent); override; |
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destructor Destroy; override; |
Properties
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property CoordinateSpaceDimension: TIfcDimensionCount read FCoordinateSpaceDimension write FCoordinateSpaceDimension; |
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property Precision: TIfcReal read FPrecision write FPrecision; |
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property WorldCoordinateSystem: TIfcAxis2Placement read FWorldCoordinateSystem write FWorldCoordinateSystem; |
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property TrueNorth: TIfcDirection read FTrueNorth write FTrueNorth; |
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property HasSubContexts: TIfcGeometricRepresentationSubContextList read FHasSubContexts; |
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property HasCoordinateOperation: TIfcCoordinateOperation read FHasCoordinateOperation write FHasCoordinateOperation; |
Description
Fields
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nested const TypeModel = 'Model'; |
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The following values for ContextType are limited to these 3 constants for TIfcGeometricRepresentationContext. | |
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nested const TypePlan = 'Plan'; |
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This item has no description. | |
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nested const TypeNotDefined = 'NotDefined'; |
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This item has no description. | |
Methods
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function WantsGlobalId: Boolean; override; |
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This item has no description. Showing description inherited from TIfcPersistent.WantsGlobalId.
If Strictly following the spec, this should be only defined for TIfcRoot, because only IfcRoot has GlobalId. In reality, we need GlobalId at TIfcPersistent to load some files, and we sometimes need | |
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constructor Create(AOwner: TComponent); override; |
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This item has no description. | |
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destructor Destroy; override; |
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This item has no description. | |
Properties
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property CoordinateSpaceDimension: TIfcDimensionCount read FCoordinateSpaceDimension write FCoordinateSpaceDimension; |
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The integer dimension count of the coordinate space modeled in a geometric representation context. | |
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property Precision: TIfcReal read FPrecision write FPrecision; |
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Value of the model precision for geometric models. | |
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property WorldCoordinateSystem: TIfcAxis2Placement read FWorldCoordinateSystem write FWorldCoordinateSystem; |
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Establishment of the engineering coordinate system (often referred to as the world coordinate system in CAD) for all representation contexts used by the project. | |
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property TrueNorth: TIfcDirection read FTrueNorth write FTrueNorth; |
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Direction of the true north, or geographic northing direction, relative to the underlying project coordinate system. | |
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property HasSubContexts: TIfcGeometricRepresentationSubContextList read FHasSubContexts; |
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The set of IfcGeometricRepresentationSubContexts that refer to this IfcGeometricRepresentationContext. | |
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property HasCoordinateOperation: TIfcCoordinateOperation read FHasCoordinateOperation write FHasCoordinateOperation; |
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Indicates conversion between coordinate systems. | |
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