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20252453-T-424 项目
Cover
Contents
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, and abbreviated terms
4 Fundamental concepts and assumptions
5 Core data schemas
6 Shared element data schemas
7 Domain specific data schemas
8 Resource definition data schemas
A Computer interpretable listings
B Alphabetical listings
C Inheritance listings
D Diagrams
E Examples
F Change logs
Bibliography
Index
4.2.2.1.10 直线段(Linear Segment)
下图展示了应用此概念时使用的通用类和关系。
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveSegment.htm'>IfcCurveSegment</a>
IfcCurveSegment
LayerAssignment
[0:1]
StyledByItem
[0:1]
1. Transition
[1:1]
UsingCurves
[1:?]
2. Placement
[1:1]
3. SegmentStart
[1:1]
4. SegmentLength
[1:1]
5. ParentCurve
[1:1]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolyline.htm'>IfcPolyline</a>
IfcPolyline
LayerAssignment
[0:1]
StyledByItem
[0:1]
1. Points
[2:?]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveSegment.htm'>IfcCurveSegment</a>:ParentCurve1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolyline.htm'>IfcPolyline</a>:IfcPolyline0
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLine.htm'>IfcLine</a>
IfcLine
LayerAssignment
[0:1]
StyledByItem
[0:1]
1. Pnt
[1:1]
2. Dir
[1:1]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveSegment.htm'>IfcCurveSegment</a>:ParentCurve1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLine.htm'>IfcLine</a>:IfcLine0
IfcLengthMeasure_0
IfcLengthMeasure
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveSegment.htm'>IfcCurveSegment</a>:SegmentStart1->IfcLengthMeasure_0:IfcLengthMeasure0
IfcLengthMeasure_1
IfcLengthMeasure
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveSegment.htm'>IfcCurveSegment</a>:SegmentLength1->IfcLengthMeasure_1:IfcLengthMeasure0
Figure 4.2.2.1.10.A
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