Automatically make physical groups from existing tags

[nicola-sorace]

It is common to create gmsh physical groups from existing cadquery tags:

with GeometryQL() as geo:
    geo = (
        geo.load(geom)
        .faces(tag="blade").addPhysicalGroup("blade").end()
        .faces(tag="domain-sides").addPhysicalGroup("domain-sides").end()
        .faces(tag="domain-top").addPhysicalGroup("domain-top").end()
        .faces(tag="domain-bottom").addPhysicalGroup("domain-bottom").end()
    )

It would often make sense for all tags to be transferred automatically. In cases where this is not desirable it could be enabled/disabled via a flag. Could also ignore tags that start with _.

[afshawnlotfi]

Added to the next release TODO

[afshawnlotfi]

@nicola-sorace Changes are here:
https://github.com/OpenOrion/meshql/tree/feature/auto-label

Let me know if this works for you

[nicola-sorace]

@afshawnlotfi Looks good. In the case of overlapping tags it seems that the more recently defined ones win, which works pretty well. Could still add the "skip tags that start with underscores", but it doesn't seem as necessary now since I can just reorder them.

[nicola-sorace]

This skips tags that start with underscores:

def _transfer_tags_to_physical_groups(self, skip_underscored=True):
    for tag, workplane in self._pre_split_workplane.ctx.tags.items():
        if skip_underscored and tag[0] == '_':
            continue
        self._add_physical_groups_for_objects(workplane.vals(), tag)

[afshawnlotfi]

Yeah might just make the function publicly accessible and you can pass the underscore option in through the func params, instead of having a top-level option on load.