Specifies that the round will have a constant radius value. Constant radius rounding is edge-based. You select the edges you want to round, and the adjacent surfaces are trimmed automatically.

Specifies that the rounded edge can have a variable radius value. After you select the edges you want to round, you define the radius values you want in the Select Vertices Step by selecting vertices and keypoints and typing the radius value you want for that location.

Species that the round will be a blend between two surfaces you select. If either of the selected surfaces are part of a tangentially connected chain of surfaces, the blend is applied to the chain of surfaces. You can only select faces that are part of a solid body when this option is set.

Species that the round feature will be a blend between two surfaces you select. If either of the selected surfaces are part of a tangentially connected chain of surfaces, the blend is applied to the chain of surfaces. When this option is set, you can also specify whether you want to trim the input surfaces or the output surface blend using the Surface Blend Parameters dialog box. You can only select faces that are part of a surface body when this option is set.