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IFC-SPF property and quantity templates file incorrect

1

In the IFC file for property and quantity templates are some errors. In all versions of the specification base entity for the templates is IfcProject instead of IfcProjectLibrary. For each...

arch1501

the links withhin the property set definition xml files to the corresponding xml schema file are invalid. This applies to all specifications from IFC4 onwards. In addition this schema file...

arch1501

how to document custom IFC properties

4

Hi all, I know that a lot of things are changing regarding the definition of products and properties, but I would like to know what is the current "standard" way...

mathib

In the description for the PrimaryMeasureType is a missleading reference: `Primary measure type assigned to the definition of the property. It should be provided, if the PropertyType is set to:`...

klacol

Outdated specification: semantics of IfcRelNests

1

The semantics of `IfcRelNests` as opposed to `IfcRelAggregates` was obviously changed in IFC4. While in IFC2x3 the difference was whether the parts and the whole of a composition are of...

hlg

On this page, the two links to the schema files are broken: https://standards.buildingsmart.org/IFC/RELEASE/IFC4/ADD2_TC1/HTML/link/annex-a.htm Broken: https://standards.buildingsmart.org/IFC/RELEASE/IFC4/Add2TC1/IFC4.xsd https://standards.buildingsmart.org/IFC/RELEASE/IFC4/Add2TC1/IFC4.exp On this page, the links are working: https://standards.buildingsmart.org/IFC/RELEASE/IFC4/ADD2_TC1/HTML/link/listing-ifc4_add2.htm Working: https://standards.buildingsmart.org/IFC/RELEASE/IFC4/ADD2_TC1/HTML/annex/annex-a/general-usage/IFC4_ADD2.exp https://standards.buildingsmart.org/IFC/RELEASE/IFC4/ADD2_TC1/HTML/annex/annex-a/general-usage/IFC4_ADD2.xsd But those working...

klacol

Line 30 (IFCTRIANGULATEDFACESET): every triangle is included three times. Intentional?

pjanck

…e new ISO 80000. The ISO 1000:1992 standard was withdrawn in 2009, following the publication of ISO/IEC 80000-1. see: https://en.wikipedia.org/wiki/ISO_1000

klacol

Make the XML files more easy editable

2

It is great to have the docs here online, and to be able to bring in a requests for change (RFC) by making a pull request (PR). Editing a markdown...

klacol

The definition of scale conflicts (or unnecessarily duplicates) the definition of IfcProjectedCRS.Unit. There are proposals to repurpose this definition with the scale of distorsion (see work by John Mitchell for...

TLiebich