Run the structural layout via the g3t engine and flatten the result
into a StructuralGeometry document with ABSOLUTE coordinates.
Results are de-duped by input identity (see _layoutCache): the
common case of the same immutable input laid out more than once
(StrictMode double-invoke, structural-view re-open) runs the engine
once.
Run the structural layout via the g3t engine and flatten the result into a StructuralGeometry document with ABSOLUTE coordinates.
Results are de-duped by input identity (see
_layoutCache): the common case of the same immutable input laid out more than once (StrictMode double-invoke, structural-view re-open) runs the engine once.