8.9.3.12 IfcCartesianPoint
8.9.3.12.1 Semantic definition
An IfcCartesianPoint defines a point by coordinates in an orthogonal, right-handed Cartesian coordinate system. For the purpose of this specification only two and three dimensional Cartesian points are used.
8.9.3.12.2 Entity inheritance
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- IfcPoint
- IfcAnnotationFillArea
- IfcBooleanResult
- IfcBoundingBox
- IfcCartesianPointList
- IfcCartesianTransformationOperator
- IfcCsgPrimitive3D
- IfcCurve
- IfcDirection
- IfcFaceBasedSurfaceModel
- IfcFillAreaStyleHatching
- IfcFillAreaStyleTiles
- IfcGeometricSet
- IfcHalfSpaceSolid
- IfcLightSource
- IfcPlacement
- IfcPlanarExtent
- IfcSectionedSpine
- IfcSegment
- IfcShellBasedSurfaceModel
- IfcSolidModel
- IfcSurface
- IfcTessellatedItem
- IfcTextLiteral
- IfcVector
8.9.3.12.3 Attributes
# | Attribute | Type | Description |
---|---|---|---|
IfcRepresentationItem (2) | |||
LayerAssignment | SET [0:1] OF IfcPresentationLayerAssignment FOR AssignedItems |
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. |
|
StyledByItem | SET [0:1] OF IfcStyledItem FOR Item |
Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve. |
|
IfcPoint (1) | |||
* | Dim | IfcDimensionCount |
This attribute is formally derived.
The space dimensionality of this abstract class, handled by a function specific for concrete subtypes. Determined by the number of coordinate components in case of IfcCartesianPoint or by the dimensionality of the basis curve or surface in other cases. |
Click to show 3 hidden inherited attributes Click to hide 3 inherited attributes | |||
IfcCartesianPoint (1) | |||
1 | Coordinates | LIST [1:3] OF IfcLengthMeasure |
The first, second, and third coordinate of the point location. If placed in a two or three dimensional rectangular Cartesian coordinate system, Coordinates[1] is the X coordinate, Coordinates[2] is the Y coordinate, and Coordinates[3] is the Z coordinate. |
8.9.3.12.4 Formal propositions
Name | Description |
---|---|
CP2Dor3D |
Only two or three dimensional points are in scope. |
|
8.9.3.12.5 Formal representation
ENTITY IfcCartesianPoint
SUBTYPE OF (IfcPoint);
Coordinates : LIST [1:3] OF IfcLengthMeasure;
WHERE
CP2Dor3D : HIINDEX(Coordinates) >= 2;
END_ENTITY;
8.9.3.12.6 References
- IfcAlignmentHorizontalSegment
- IfcBSplineCurve
- IfcBSplineSurface
- IfcBoundingBox
- IfcCartesianTransformationOperator
- IfcFillAreaStyleHatching
- IfcLightSourcePositional
- IfcLine
- IfcMirroredProfileDef
- IfcOpenCrossProfileDef
- IfcPoint
- IfcPointDim
- IfcPolyLoop
- IfcPolyline
- IfcRevolvedAreaSolid
- IfcSameCartesianPoint
- IfcTrimmingSelect