Drawing generation feature request : Having a crease threshold setting

[Gorgious56]

Following #3158

How feasible is it to have a setting or a threshold for dissolving edges in almost-coplanar faces ?
Here's a model export from pure ifcopenshell

And here's the same with the prj addon for Blender which is powered by Blender's line art modifier.

Both renders are by no means perfect, but Blender's line art modifier allows for some granularity in what edges should or shouldn't be drawn. I also wonder about intersections between objects, which are not strictly speaking derived from actual geometry.

I model existing buildings so slabs, walls etc. are never pefectly coplanar, so ideally a threshold of coplanarity to dissolve edges would be extremely useful in drawing renderings.

[Moult]

The intersection lines are probably the same problem reported here: #3561

[Moult]

Ping @aothms now that there is a set unify inputs, is there a possibility of adjusting the angular tolerance?

[aothms]

now that there is a set unify inputs, is there a possibility of adjusting the angular tolerance?

In theory yes, you can experiment with it in a local build. Both hard coded in a different place:

[0] https://github.com/IfcOpenShell/IfcOpenShell/blob/v0.7.0/src/serializers/SvgSerializer.cpp#L708C57-L708C62
[1] https://github.com/IfcOpenShell/IfcOpenShell/blob/v0.7.0/src/ifcgeom_schema_agnostic/boolean_utils.cpp#L586

But I don't think this can be set arbitrarily high.