Keypoint Curve Tools > Arcs > Concentric Arc

Allows you to create a keypoint arc concentric to another keypoint arc.

Procedures

Draw keypoint arcs in relation to existing curves

Concentric Arc Options

Degree

Specifies the degree of the curve. The values range from 2 to 7. The default is 6.

Spans

Specifies the number of spans in the curve. The values range from 1 to 14. The default is 1.

Note:

The sum of the degree and number of spans cannot exceed 16. When creating rational geometry, as set in Preferences > Construction Options, the Spans option is not available.