Class TIfcMaterial
Unit
Declaration
type TIfcMaterial = class(TIfcMaterialDefinition)
Description
Homogeneous or inhomogeneous substance that can be used to form elements (physical products or their components).
Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5576).
Hierarchy
- TObject
- TPersistent
- TComponent
- TIfcPersistent
- TIfcMaterialSelect
- TIfcMaterialDefinition
- TIfcMaterial
Overview
Methods
| Protected | function WantsGlobalId: Boolean; virtual; |
| Protected | class function IfcClassName: String; virtual; |
| Public | constructor Create(AOwner: TComponent); override; |
| Public | destructor Destroy; override; |
| Public | constructor Create(AOwner: TComponent); override; |
| Public | destructor Destroy; override; |
Properties
| Published | property GlobalId: String read FGlobalId write FGlobalId; |
| Published | property AssociatedTo: TIfcRelAssociatesMaterialList read FAssociatedTo; |
| Published | property HasExternalReferences: TIfcExternalReferenceRelationshipList read FHasExternalReferences; |
| Published | property HasProperties: TIfcMaterialPropertiesList read FHasProperties; |
| Published | property Name: TIfcLabel read FName write FName; |
| Published | property Description: TIfcText read FDescription write FDescription; |
| Published | property Category: TIfcLabel read FCategory write FCategory; |
| Published | property HasRepresentation: TIfcMaterialDefinitionRepresentation read FHasRepresentation write FHasRepresentation; |
| Published | property IsRelatedWith: TIfcMaterialRelationshipList read FIsRelatedWith; |
| Published | property RelatesTo: TIfcMaterialRelationship read FRelatesTo write FRelatesTo; |
Description
Methods
| Protected | function WantsGlobalId: Boolean; virtual; |
|
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 | |
| Protected | class function IfcClassName: String; virtual; |
|
Name for the IFC standard, used in IFC files. By default, this is just ClassName with prefix 'T' removed. | |
| Public | constructor Create(AOwner: TComponent); override; |
|
This item has no description. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5451). | |
| Public | destructor Destroy; override; |
|
This item has no description. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5452). | |
| Public | constructor Create(AOwner: TComponent); override; |
|
This item has no description. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5585). | |
| Public | destructor Destroy; override; |
|
This item has no description. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5586). | |
Properties
| Published | property GlobalId: String read FGlobalId write FGlobalId; |
|
Globally unique identifier for the object instance. Note: Not declared as TGUID, because TGUID cannot be published, but also we don't really need it: for our purposes, this identifier is just an arbitrary string. Note: IFC 4.3 specification puts this only at IfcRoot, not at every IFC class. But testcase https://github.com/buildingsmart-community/Community-Sample-Test-Files/blob/main/IFC%204.0.2.1%20(IFC%204)/ISO%20Spec%20archive/wall-with-opening-and-window.json (from IFC 4.0) shows this can be present at any IFC class, in particular TIfcGeometricRepresentationContext. In fact, TIfcGeometricRepresentationContext needs to have IFC JSON documentation says this, which seems to (unfortunately it is not unambiguous enough...) allow this at any IFC class: "Whereas the | |
| Published | property AssociatedTo: TIfcRelAssociatesMaterialList read FAssociatedTo; |
|
Use of the IfcMaterialDefinition subtypes within the material association of an element occurrence or element type. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5456). | |
| Published | property HasExternalReferences: TIfcExternalReferenceRelationshipList read FHasExternalReferences; |
|
Reference to external references, e.g. library, classification, or document information, that are associated to the material. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5460). | |
| Published | property HasProperties: TIfcMaterialPropertiesList read FHasProperties; |
|
Material properties assigned to instances of subtypes of IfcMaterialDefinition. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5463). | |
| Published | property Name: TIfcLabel read FName write FName; |
|
Name of the material. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5589). | |
| Published | property Description: TIfcText read FDescription write FDescription; |
|
Definition of the material in more descriptive terms than given by attributes Name or Category. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5592). | |
| Published | property Category: TIfcLabel read FCategory write FCategory; |
|
Definition of the category (group or type) of material, in more general terms than given by attribute Name. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5595). | |
| Published | property HasRepresentation: TIfcMaterialDefinitionRepresentation read FHasRepresentation write FHasRepresentation; |
|
Reference to the IfcMaterialDefinitionRepresentation that provides presentation information to a representation common to this material in style definitions. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5600). | |
| Published | property IsRelatedWith: TIfcMaterialRelationshipList read FIsRelatedWith; |
|
Reference to a material relationship indicating that this material is a part (or constituent) in a material composite. Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5604). | |
| Published | property RelatesTo: TIfcMaterialRelationship read FRelatesTo write FRelatesTo; |
|
Reference to a material relationship indicating that this material composite has parts (or constituents). Source: scene/load/ifc/castleifc_ifc_standard_types.inc (line 5608). | |
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