BlendCrv Tools > Blend Curve Create

Lets you create new blend curves in the scene by placing location constraints. You can also use this tool to edit existing blend curves.

Use the Blend Curve Create tool to create the initial shape of the curve. Then you can add, edit, or delete the initial constraints using the constraint tools.

Blend Curve Options

Knot Spacing: “Knot” is another term for edit point.

Chord – The chord length parameterizes the new curve edit points in current units. The chord length is the cumulative straight line distance between consecutive edit points. The starting point of the curve has the parameter 0.0, and the ending point has the parameter equal to the total chord length of the curve.

Uniform – The new curve edit points have integral parameters: the first edit point is parameter 0.0, the second is 1.0, and so on.
Curve Degree: The mathematical degree of the curve created, which control the number of CVs per span: 1 (linear), 2 (quadratic), 3 (cubic), 5 or 7. The default is 5. (For some products the default is 3.)

NoteDegree 2, 5 and 7 curves are not available for all Alias products.
Auto Align at Surface Corners: When this option is checked on, a blend curve that is snapped to the corner of a surface (or trim surface) is automatically aligned with tangent continuity to one of the edges (or trim edges).

Auto Align at Surface Corner OFF (left) and ON (right).