ifc-impl-spatial-decomposition

This skill is the write-side workflow for the IFC spatial structure. It teaches the exact order of operations to build the spatial breakdown tree, place every physical element into it, and verify that no element is left orphaned.

For the structure itself (what the tree is, the entity hierarchy, WHERE rules) see ifc-core-spatial-structure. For failure recovery see ifc-errors-spatial-structure. For the overall file-authoring sequence see ifc-impl-authoring-file.

ALWAYS build the spatial tree before placing any element. An element placed into a node that does not yet exist cannot be wired, and an element with no container is an orphan that the buildingSMART validation service and most viewers reject.

Quick Reference

The decomposition workflow (7 steps, in order)