A curve-on-surface has its own selection tool, Pick
Object TypeCurve on Surface. Use this to select and delete CoS that are no longer required. (A surface with a CoS on it is displayed with dotted edges.)
If a CoS or a trimmed edge is converted to a normal curve (using Curve EditCreateDuplicate Curve), it typically has many spans. You can rebuild it to Bezier (single-span) using the control panel, and then check it using the deviation tools on the Locators palette.
The traditional workflow in Alias has two steps: creating the CoS and then trimming the surface. The following pages describe the Surface Edit palette tools used for each step.
