How to query ifc files?

Question

I'm working on a project with BIM for my education and I want to extract data from ifc files.

The idea is to find information like finding floors with a specific height, shape and structure, then I would like to run pathfinding algorithms.

I can't find any document describing and comparing all possibilities...

I found some ways to query but most of them seems abandoned and others have drawbacks, here is what I have:

• BIMQL : no activity since 2017
• QL4BIM : no activity
• SPARQL : no comparison operators
• BIMServer query language : requires to run a server
• IFC++ : lack of documentation

I don't mind if the query language structure ( even if json would be awesome ).

Answer 1

Don't know about pathfinding, but did you look at xBIM ? It has documentation, examples and a viewer , so you can explore objects/hierarchy.

Answer 2

请参考上面的BIM_POC ，这对您有帮助。

Answer 3

如果您有一些编程知识/经验，我建议使用IfcOpenShell进行从ifc文件进行的各种查询和数据提取。