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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
4.2.2.3.3.1 多边形几何体(Polygonal Geometry)
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/IfcPolygonalFaceSet.htm'>IfcPolygonalFaceSet</a>
IfcPolygonalFaceSet
LayerAssignment
[0:1]
StyledByItem
[0:1]
1. Coordinates
[1:1]
HasColours
[0:1]
HasTextures
[0:?]
2. Closed
[0:1]
3. Faces
[1:?]
4. PnIndex
[1:?]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCartesianPointList3D.htm'>IfcCartesianPointList3D</a>
IfcCartesianPointList3D
LayerAssignment
[0:1]
StyledByItem
[0:1]
1. CoordList
[1:?]
2. TagList
[1:?]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalFaceSet.htm'>IfcPolygonalFaceSet</a>:Coordinates1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCartesianPointList3D.htm'>IfcCartesianPointList3D</a>:IfcCartesianPointList3D0
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBoolean.htm'>IfcBoolean</a>
IfcBoolean
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalFaceSet.htm'>IfcPolygonalFaceSet</a>:Closed1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBoolean.htm'>IfcBoolean</a>:IfcBoolean0
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolygonalFace.htm'>IfcIndexedPolygonalFace</a>
IfcIndexedPolygonalFace
LayerAssignment
[0:1]
StyledByItem
[0:1]
1. CoordIndex
[3:?]
ToFaceSet
[1:?]
HasTexCoords
[0:1]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalFaceSet.htm'>IfcPolygonalFaceSet</a>:Faces1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolygonalFace.htm'>IfcIndexedPolygonalFace</a>:IfcIndexedPolygonalFace0
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolygonalFaceWithVoids.htm'>IfcIndexedPolygonalFaceWithVoids</a>
IfcIndexedPolygonalFaceWithVoids
LayerAssignment
[0:1]
StyledByItem
[0:1]
1. CoordIndex
[3:?]
ToFaceSet
[1:?]
HasTexCoords
[0:1]
2. InnerCoordIndices
[1:?]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalFaceSet.htm'>IfcPolygonalFaceSet</a>:Faces1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolygonalFaceWithVoids.htm'>IfcIndexedPolygonalFaceWithVoids</a>:IfcIndexedPolygonalFaceWithVoids0
IfcPositiveInteger_3
IfcPositiveInteger
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalFaceSet.htm'>IfcPolygonalFaceSet</a>:PnIndex1->IfcPositiveInteger_3:IfcPositiveInteger0
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedColourMap.htm'>IfcIndexedColourMap</a>
IfcIndexedColourMap
1. MappedTo
[1:1]
2. Opacity
[0:1]
3. Colours
[1:1]
4. ColourIndex
[1:?]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalFaceSet.htm'>IfcPolygonalFaceSet</a>:HasColours1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedColourMap.htm'>IfcIndexedColourMap</a>:MappedTo0
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLengthMeasure.htm'>IfcLengthMeasure</a>
IfcLengthMeasure
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCartesianPointList3D.htm'>IfcCartesianPointList3D</a>:CoordList1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLengthMeasure.htm'>IfcLengthMeasure</a>:IfcLengthMeasure0
IfcPositiveInteger_0
IfcPositiveInteger
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolygonalFace.htm'>IfcIndexedPolygonalFace</a>:CoordIndex1->IfcPositiveInteger_0:IfcPositiveInteger0
IfcPositiveInteger_1
IfcPositiveInteger
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolygonalFaceWithVoids.htm'>IfcIndexedPolygonalFaceWithVoids</a>:CoordIndex1->IfcPositiveInteger_1:IfcPositiveInteger0
IfcPositiveInteger_2
IfcPositiveInteger
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolygonalFaceWithVoids.htm'>IfcIndexedPolygonalFaceWithVoids</a>:InnerCoordIndices1->IfcPositiveInteger_2:IfcPositiveInteger0
IfcNormalisedRatioMeasure_0
IfcNormalisedRatioMeasure
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedColourMap.htm'>IfcIndexedColourMap</a>:Opacity1->IfcNormalisedRatioMeasure_0:IfcNormalisedRatioMeasure0
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcColourRgbList.htm'>IfcColourRgbList</a>
IfcColourRgbList
1. ColourList
[1:?]
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedColourMap.htm'>IfcIndexedColourMap</a>:Colours1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcColourRgbList.htm'>IfcColourRgbList</a>:IfcColourRgbList0
IfcPositiveInteger_4
IfcPositiveInteger
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedColourMap.htm'>IfcIndexedColourMap</a>:ColourIndex1->IfcPositiveInteger_4:IfcPositiveInteger0
IfcNormalisedRatioMeasure_1
IfcNormalisedRatioMeasure
<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcColourRgbList.htm'>IfcColourRgbList</a>:ColourList1->IfcNormalisedRatioMeasure_1:IfcNormalisedRatioMeasure0
Figure 4.2.2.3.3.1.A
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