Tool

Control Points

Curve Analysis

Extract the NURBS control points and knots of a curve

Docs for v2.1.18, the latest version.

ID

tool-curve-analysis-control-points

Group

Curve Analysis

Plugin

Tool

Keywords

controlPoints
cp

Control Points

Curve Analysis

1 input, 3 outputs

Ports

Inputs

1

What the node takes in, from wires or typed values.

Curve

Curve

Curve to evaluate

Outputs

3

What the node gives out, to wire into other nodes.

Points

Point

Control points of the NURBS-form

Knots

Number

Knot vector of NURBS-form

Weights

Number

Weights of control points

Creation method#

There are two options for creating a Control Points node.#

  • The first way to create a Control Points node using the search list, which is opened by double left-clicking in the workspace. You can write the name of the node you need, or words associated with this node.
    • controlPoints , cp
  • The second way is to select a Control Points node from the menu that opens from the top left.
    • Menu > Tool > Curve Analysis > Control Points

Steps#

  • Create a Control Points node.
  • Connect the curve whose control points we want to find to the port.

After creating a node, connect the curve whose control points we want to find to the port. On the output port you will receive control points, knots and weights.

See also#

Closed
Curve Length
Curve Middle Point
End Points

History

First documented in v2.1.18

Oct 20, 2026

Versions before it were published before changes were recorded.