文本文本是一个几何表示项,它使用字符串文本和附加的位置和路径信息来描述文本字符串。文本大小和外观由通过IfcStyledItem与IfcTextLiteral关联的IfcTextStyle确定。
文本字符串放置在子类型IfcTextLiteralWithExtent中定义的平面范围(框)。
注:实体改编自ISO10303-46中定义的文本
IFC2x2中增加的新实体。
IFC2x3更改IfcTextLiteral已通过删除字体和对齐方式进行了更改。
注:不推荐使用IfcTextLiteral,它将成为抽象的。
# | Attribute | Type | Cardinality | Description | C |
---|---|---|---|---|---|
IfcRepresentationItem | |||||
LayerAssignment | IfcPresentationLayerAssignment @AssignedItems |
S[0:1] | Assignment of the representation item to a single or multiple layer(s). The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items. | X | |
StyledByItem | IfcStyledItem @Item |
S[0:1] | Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve. | X | |
IfcGeometricRepresentationItem | |||||
IfcTextLiteral | |||||
1 | Literal | IfcPresentableText | [1:1] | The text literal to be presented. | X |
2 | Placement | IfcAxis2Placement | [1:1] | An IfcAxis2Placement that determines the placement and orientation of the presented string. | X |
3 | Path | IfcTextPath | [1:1] | The writing direction of the text literal. | X |
EXPRESS Specification
ENTITY IfcTextLiteral
SUPERTYPE OF(IfcTextLiteralWithExtent)
SUBTYPE OF (IfcGeometricRepresentationItem);
Literal : IfcPresentableText;
Placement : IfcAxis2Placement;
Path : IfcTextPath;
END_ENTITY;