About Rounds
You create a round by modifying edges such that a radius is added to one or more edges. There are three categories of round cross section: circular, conic, and curvature continuous. Use a circular profile to create a simple round with a circular cross section, or use a conic profile to create a round with a conic cross section. The curvature continuous cross section can be fine-tuned like a conic, but curvature continuity is maintained with the adjacent surfaces to improve the aesthetic quality of the geometry. You can create rounds with the following cross-sectional shapes:
• Circular — Specify a radius
• Conic — Specify distances and the sharpness of the conical shape with a Conic parameter from 0.05 to 0.95. You can toggle between the following types:
◦ Conic — Specify an equal distance D. Each leg automatically updates when the other is modified.
◦ D1 x D2 Conic — Specify independent distances D1 and D2 and a Conic parameter.
• C2 Continuous — Specify distance D and a spline shape with a C2 shape factor from 0 to 0.95. The effect of the C2 shape factor on the shape of the spline is analogous to that of the rho factor on a conic arc.
• D1 x D2 C2 — Specify distances D1 and D2 and a spline shape with a C2 shape factor from 0 to 0.95.
If the edge that you select for creating a round is a part of a tangent chain, the round is propagated by default to the entire chain. However, you can choose to create a round only for selected edges. Additionally, you can perform the following operations on rounded surfaces for simplifying geometry:
• Select and edit a group of rounds including constant, C2, and conic rounds.
• Edit one or more 3D rounds simultaneously by modifying their radius or distance values.
• Delete rounds including constant, conic, and C2 rounds.