8 Relation Phases🔗ℹ

A relation-visual is a first-class immutable declaration of a visual that depends on scene values, visual identities, or renderer-measured layout. Semantic relations resolve from sampled scene data; layout relations resolve only after ordinary sampling, so they can use a renderer’s measured boxes.

Relations have explicit dependencies, phase, structure, and cacheability. This makes a live label or altitude inspectable instead of hiding a mutable updater.