Extra 1 / 12 · Structure
Shared sites and connections
Imagine two pieces of a linkage meeting at a pin. Sharing the pin is a structural relationship. Merely drawing their ends at the same position does not create it.
Selected result
What remains connected
What is checked, and where this example stops
The fixture checks shared tick identity, independent equal coordinates, reversed traversal and preservation through numeric transport.
This establishes site identity and an explicit structural retargeting. It does not simulate the forces in a mechanical linkage.