Builds an acropetal growth schedule from cumulative root-to-tip path distance.
Parent spans always finish before child spans begin. Siblings at the same path
distance therefore emerge together regardless of segment emission order.
Organs begin only after their host segment has matured.
Builds an acropetal growth schedule from cumulative root-to-tip path distance.
Parent spans always finish before child spans begin. Siblings at the same path distance therefore emerge together regardless of segment emission order. Organs begin only after their host segment has matured.