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BC003 AL01 - improving documentation #75

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@pjanck pjanck commented Aug 21, 2023

Small improvements to

  • readability
  • structure
  • content

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This diagram is adding requirements on the use of IfcRelPositions that are not further documented within the test instructions, nor in the IFC specification (e.g., between two alignments, between an alignment and a spatial structure element). Please clarify the requirements, possibly referring to existing IFC documentation.

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@evandroAlfieri Please see section Link to requirements at the end of the readme.

Comment on lines +131 to +137
| RI 86 | Unique containment | "Each IfcElement shall be either: - contained in one and only one IfcSpatialStructureElement, or - contained in one and only one IfcLinearPositioningElement." | RA-75 |
| RI 305 | Alignment organization | CableCarrier alignments shall be related to the track alignment with IfcRelPositions relationship | Cable carrier alignments shall be related to the track alignment |
| RI 311 | Alignement extruded geometry placement | A IfcCableCarrierSement which geometry is a IfcSectionSolidHorizontal shall be using the same IfcObjectPlacement as the IfcAlignment it is positioned along | NIL|
| RI 312 | Offset alignment placement | An IfcAlignment which geometry is a IfcOffsetCurveByDistances shall use the same IfcLocalPlacement as the IfcAlignment is relates to | NIL|
| RI 313 | Extruded CableCarrier positioning | A IfcSectionedSolidHorizontal geometry used for a IfcCableCarrierElement positioned relatively from an IfcAlignment shall use its IfcLocalPlacement | NIL |
| RI 314 | Project structure | The only "container" aggregated to the project shall be either IfcSite, IfcFacility, IfcAlignment. Other non-IfcProducts shall be connected to the project with IfcRelDeclares | NIL |
| RI 315 | Elements referencing in Spatial structures | If IfcElements are positioned wrt IfcPositioning elements, then they must be also referenced (instead of aggregated) into a IfcSpatialStructure element | NIL |
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that are not further documented within the test instructions

Please see here.

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