Andy Ward

How are you measuring the memory delta? Which profiling tools? What are you seeing? Can you provide a mininal repo including actual versions of xbim being used? Bare in mind...

Which version of the libraries are you using? Please supply a **full** working solution if you can - as a repo. These figures will not be accurate until Garbage collection...

It's to do with .NET GC Generations and the Large object heap. Take a look at https://learn.microsoft.com/en-us/dotnet/standard/garbage-collection/background-gc & https://learn.microsoft.com/en-us/dotnet/standard/garbage-collection/large-object-heap I will take a look, it may be there's a small...

Which versions of Geometry and wexbim UI are you using? Can you show the code you use to generate geometry? Have you tried using the `adjustWcs` param on `Xbim3DModelContext.CreateContext()` -...

Confirmed it's OK in the latest v6 Xbim.Geometry - specifically 6.1.0.751  >We found a new alfa version that fix some of the invisible wall but then other models started...

@martin1cerny can you provide any input on v6 release timescales?

PR Looks good Martin. What are your thoughts on what we do with the Ifc4 Interfaces. i.e. so we can find IIfcWalls regardless of schema - including IFC4x3? Part of...

I'll take a look. I guess I was expecting `Ifc4x3.IfcWall` to implement `Ifc4.IIfcWall` in https://github.com/xBimTeam/XbimEssentials/blob/1418eb729eed8bca840bc4797053ddc86f222373/Xbim.Ifc4x3/SharedBldgElements/IfcWall.cs#L25 I must be missing something? For future compatibility don't we want to be able to...

Didn't Steve already start this at https://github.com/xBimTeam/XbimEssentials/commit/6c5f7c513118331f34678dc2c6eb92846555ea80 ?

Agreed. Net 7 should be trivial now we've got to 6 in Geometry. Obviously it's not LTS. See #467 In the next major release of Toolkit (v6) we're reviewing the...