Complex sentence: Design relies on simple geometry (angles and lengths) and being able to predict the shapes resulting from a rule system, and the possibility of fast or realtime previews of the result greatly facilitates small adjustements of sizes, angles and probabilities.
Split into simpler sentences: Design relies on simple geometry (angles and lengths) and being able to predict the shapes resulting from a rule system. The possibility of fast or realtime previews of the result greatly facilitates small adjustements of sizes, angles and probabilities.