Class TIfcPolygonalFaceSet
Unit
Declaration
type TIfcPolygonalFaceSet = class(TIfcTessellatedFaceSet)
Description
Tessellated face set with all faces being bound by polygons. This is what is most commonly referred to as "a mesh" in 3D.
Spec: https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/HTML/lexical/IfcPolygonalFaceSet.htm
Hierarchy
- TObject
- TPersistent
- TComponent
- TIfcPersistent
- TIfcRepresentationItem
- TIfcGeometricRepresentationItem
- TIfcTessellatedItem
- TIfcTessellatedFaceSet
- TIfcPolygonalFaceSet
Overview
Methods
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constructor Create(AOwner: TComponent); override; |
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destructor Destroy; override; |
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function BuildNode(const Mapping: TCastleIfcMapping): TAbstractChildNode; override; |
Properties
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property Closed: Boolean read FClosed write FClosed default false; |
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property Faces: TIfcIndexedPolygonalFaceList read FFaces; |
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property PnIndex: TIntegerList read FPnIndex; |
Description
Methods
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constructor Create(AOwner: TComponent); override; |
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This item has no description. Showing description inherited from TIfcTessellatedFaceSet.Create. TODO FHasColours: TIfcIndexedColourMap; TODO FHasTextures: TIfcIndexedTextureMapList; | |
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destructor Destroy; override; |
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This item has no description. | |
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function BuildNode(const Mapping: TCastleIfcMapping): TAbstractChildNode; override; |
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This item has no description. Showing description inherited from TIfcRepresentationItem.BuildNode. Build a node to display this using Castle Game Engine. Does nothing (adds nothing to Parent) if not possible / not implemented. | |
Properties
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property Closed: Boolean read FClosed write FClosed default false; |
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Indication whether the face set is a closed shell (TRUE) or an open shell (FALSE). IFC spec says: If omitted no such information can be asserted. For our implementation, "no such information can be asserted" means it shall be treated as an open shell, so we don't introduce a 3rd state. | |
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property Faces: TIfcIndexedPolygonalFaceList read FFaces; |
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List of polygonal faces. | |
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property PnIndex: TIntegerList read FPnIndex; |
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The list of integers defining the locations in the IfcCartesianPointList3D to obtain the point coordinates for the indices at the indexed polygonal faces. If the | |
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