How <Environment Root> Represents the Environment
The geometric representation in this example is organized as a <Property Grid Hook Point>, which "hooks" its <Property Grid> components - each of which specifies its own spatial reference frame - to the spatial reference frame of the <Environment Root>.
Remember that if all higher-level organization semantics are stripped away, all geometric organizations ultimately boil down to combinations of
- <Union Of Primitive Geometry> (already covered)
- <Property Grid Hook Point>