Catia+v5+sketch+tools
Some students sketched abstract shapes, others annotated every constraint like a lawyer. A shy student at the back raised her hand and asked, "But what if I make something ugly?" Maia smiled. "Ugly is just honest geometry. Let it move; you'll find the beauty in the behavior."
Ensures a smooth, seamless transition between a line and an arc. catia+v5+sketch+tools
CATIA V5 features a built-in visual traffic-light system via the to diagnose the health of your sketch: Visual Indicator / Color Action Required White Lines Some students sketched abstract shapes

