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Created by Nicholas Styles@nstylesContributor

Phi-sector cuts for boolean solids

We may need to use boolean solids for the ITkPixel envelope shape, as discussed in https://its.cern.ch/jira/browse/ATLITKSW-137

Unfortunately, when doing so there are issues with visualizing the geometry with gmex. Phi-sector cuts do not work, and neither does descending into the volume tree with ctrl+click. E.g.

VP1MESSAGE: Geometry/Geo: ===> Selected Node: ITkPixel
VP1MESSAGE: Geometry/Geo: WARNING: Unknown volume type (boolean?) for volume around Z-axis (type SoPolyhedron). Phi-sector cuts won't work for this!

This means that is not easily possible to see anything within the ITkPixel node (which is basically all the ITk pixel substructure).

@ncalace recalled that it had been mentioned in the past that this is something which can in principle be fixed?