nurbs primitive menu

tang int

Purpose
To select a more accurate algorithm for the calculation of surfaces in sweep mode.

Usage
Click the tang int button to activate it. The sweep surface will now be more accurate using a tangent interpolation algorithm. Click the tang int button again to deactivate it.

Comments
tang int will work only for second and third degree spine curves in sweep mode.
With tang int on, the sweep surface will be calculated by interpolating both the tangent and the position of the contours along the spine.
With the tang int off, only the position of the contours will be interpolated.

See also
frenet frames