Comments (5)
My suspicion is that when we keep it like it is, many implementers will add a checkbox:
- Ignore IFC schema version
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I also think this deserves some thought. I might also be that we're mixing two separate things:
- Compatibility of the IDS with versions of the IFC spec
- Requirement to have a specific version of IFC delivered
For the first we have to keep in mind that with the level of abstraction we're at (e.g material as opposed to IfcMaterialConstituentSet where the last is applicable only to certain schema versions) it should be possible to be fairly agnostic wrt ifc schema version.
For the second if this is the case it maybe should be in the specifications section and should be optional and plural.
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Good point.
So suggestion is to move 'IfcVersion' to and make it a list.
Makes sense
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- Compatibility of the IDS with versions of the IFC spec
Totally agree on this, optional is the way to go, also because this would enable to progressively define the content of IDS.
Initially the file might contain facetGroups with a just a name to work out information flows, then their technical implementation might follow, while retaining valid files.
- Requirement to have a specific version of IFC delivered
It would help me in framing this issue to better understand the scope of a single IDS file.
If a single IDS were to cover multiple deliverables at some project stage (i.e. models provided by Arch, Stuct, MEP...) we would certainly need to expand to a list.
But I would prefer a scenario where an IDS is negotiated by provider/consumers on a more atomic level, and in that case a clear constraint to a version would make life easier for any code that goes and gets the data out of it.
Similarly to the issue I raised on the widespread use of idsValue (#39), I think that being more heavy handed on requirements would result in better workflows enabled by IDS.
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updated in 0.5.6
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Related Issues (20)
- IDS BIM
- Restriction of values: Enumeration limited to string-based datatype or do we allow for real, integer and measurements HOT 3
- Predefined type evaluation
- userdefuned HOT 6
- Test case naming consistency HOT 2
- 2 testcases have .html file instead of .ifc HOT 2
- Tolerance documentation 1.0.0 HOT 6
- Wrong file name in the entity directory of test cases HOT 1
- Tolerance test issues in 1.0 HOT 3
- Are complex restrictions applicable to all facet parameters? HOT 2
- Test case for indirect containment is incorrect
- Relation between enumerations in Applicability and Requirements HOT 1
- Broken links on dev Readme HOT 1
- Add textual definitions to each IDS element HOT 1
- IfcTester check ifc version?
- Proposal: Permit dataType equivalents for non-measure Property values HOT 4
- IfcAlignmentTypeEnum in IFC4 HOT 1
- IDS master branch has disappeared HOT 6
- Documentation Readme references missing example/sample files
- Repo housekeeping
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