Command entry: Modify panel
Select a NURBS object.
Modifier stack display
Curve sub-object level
Select an independent CV curve sub-object.
CV Curve rollout
Reparam. button
Command entry: Modify panel
Select a NURBS object.
Modifier stack display
Curve sub-object level
Select an independent CV surface sub-object.
CV Surface rollout
Reparam. button
The Reparam. button for CV curves and surfaces displays this dialog. Reparameterizing a CV sub-object changes its parameter space to provide a better relation between control point locations and the shape of the sub-object.
TipIt is a good idea to reparameterize after you have added CVs to a curve or surface by refining or inserting.
Interface
- Chord Length
-
Chooses the chord-length algorithm for reparameterization.
Chord-length reparameterization spaces knots (in parameter space) based on the square root of the length of each curve segment.
Chord-length reparameterization is usually the best choice.
- Uniform
-
Spaces the knots uniformly.
A uniform knot vector has the advantage that the curve or surface changes only locally when you edit it. With chord-length
parameterization, moving any CV can potentially change the entire sub-object.
- Maintain Parameterization
-
When on, the curve is automatically reparameterized as you edit it, using the currently active method of reparameterization.
When off, no reparameterization happens unless you use this dialog. Default=off.
- Preview
-
If on (the default), displays the effects of reparameterizing in viewports.