Taper Sweep Surface

Functionality

This node generates a surface by sweeping a curve (called “profile”) along an axis. While the curve is moved, it is scaled according to another curve (called “taper curve”).

This node is a generalization of “revolution surface” node: when the “profile” curve is a circle, this node will generate a revolution surface from “taper” curve.

• Surfaces-> Evaluate Surface

• Viz-> Viewer Draw

• Scene-> Bezier Input

Domain / parametrization specifics: Domain along U parameter is the same as domain of the “profile” curve. Domain along V parameter is the same as the domain of the “taper” curve.

Inputs

This node has the following inputs:

• Profile. The profile curve. This input is mandatory.

  

• Taper. The taper curve. This input is mandatory.

  

• Point. The point on the taper axis line. The default value is (0, 0, 0).

• Direction. The directing vector of the taper axis line. The default value is (0, 0, 1) (Z axis).

  

  • Vector-> Vector Polar Input

  • Generator-> Line

Parameters

This node has the following parameters:

• NURBS. If enabled, the node will expect NURBS (or NURBS-like) curves as input, and output a NURBS surface. Otherwise, the node can process arbitrary curves, and will output a generic Surface object. Unchecked by default.

• Scale. This defines the scale of resulting surface in the plane perpendicular to taper axis. The available options are:

  • Unit.

  • Profile. The surface will be scaled in order to match the profile curve.

  • Taper. The surface will be scaled in order to match the taper curve.

    

Outputs

This node has the following output:

• Surface. The generated surface.

Example of usage

The taper curve is generated by “filleting” some line; the profile curve is filleted square:

• Generator-> NGon

• Curves->Curve Primitives-> Fillet Polyline

• Surfaces-> Evaluate Surface

• Vector-> Vector sort

• Viz-> Viewer Draw

• Scene-> Objects In Lite

Example of NURBS mode:

• Surfaces->Surface NURBS-> Remove Excessive Knots (NURBS Surface)

• Surfaces->Surface NURBS-> Deconstruct Surface

• Surfaces-> Evaluate Surface

• Viz-> Viewer Draw

• Scene-> Bezier Input