Requiring the existence of Predefined Type

1

We are trying to set up an IDS specification that requires the existence of PredefinedType for certain entities. A typcical example would be IfcCovering where we need PredefinedType to be able to distinguish between CEILING, FLOORING, INSULATION etc (and theoretically maybe also a USERDEFINED name).

In the mvdXML export in BIMQ this would look like this, specifying the existence of a valid Predefined Type of either the occurrence of IfcCovering or the type IfcCoveringType:

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What would be the correct syntax for IDS 1.0.0? I have tried setting it up under “Applicability” in Sortdesk Viewer, and it looks like this:

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The IDS code created from this is something like:

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image1318×504 34.6 KB

Is this the correct way of specifying it, and is it valid IDS code? If not what is wrong?

2

Looks good to me!

You can be sure if you run it through IDS Audit tool:

(some IDS authoring tools integrate it so you get feedback instantly)

Claudio Benghi made a handy web app that allows you to do the same in the browser:
https://www.xbim.it/ids

3

Thank you for quick and useful reply!

I ran the file through the www.xbim.it service, and get the following result:

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I’m not sure I am able to dechiffer that, but “someting” triggers an “Error 502” message.

4

I speak some errorish :nerd_face:

502 is an XML schema error - meaning it is not a valid XML file: IDS-Audit-tool/ids-lib/ErrorCodes.md at 57353ec223b53a30d64bc23d401c1f5eb7cf3291 · buildingSMART/IDS-Audit-tool · GitHub

Your error also says ‘Invalid Char[acter]’. I assume you have not allowed
character, maybe even invisible at first glance. Might be an issue with encoding when you save a file. This is why manual XML creation is not recommended - use IDS authoring tool if possible. You might be able to solve it if you open in text editor like Notepadd++ and ShowAllCharacters

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