I wonder what are the rules for assigning IFC properties to an element?
Let’s say I’ve got a wall and I want to assign various properties. I know, there is a document properties table and I can add my own data. For now, I add a new property, “AcousticRating”, for example and I assign it to new “IfcPropertySingleValue” category, then I set data type and I may add some notes. Seems fine.
But how is it related to the IFC specification? As you may see, I have choosen some real IFC properties and categories. Is it enough or should I add something else?
Then, would it be possible to assign these properties to some specific elements only? I mean, for now I can have dozens of properties but only a few apply for doors, other for walls etc., etc. Now, when I check a door parameters I can see all these properties, even if they are for some other element exclusively. Would it be possible to have an additional list to assign what document properties I want to be assigned to element categories?
The next question concerns data types. At the IFC specification site (http://www.buildingsmart-tech.org/ifc/IFC2x3/TC1/html/index.htm) I can see what kind of data is to be set to a property. Then, what about an enumarated data or various time data? Is it possible to add such a data type? I mean, is it possible for you