Curve Segment

Functionality

This node generates a curve which is defined as a subset of the input curve with a smaller range of allowed T parameter values. In other words, the output curve is the same as input one, but with restricted range of T values allowed.

Output curve domain: defined by node inputs.

Output curve parametrization: the same as of input curve.

Inputs

This node has the following inputs:

• Curve. The curve to be cut. This input is mandatory.

• TMin. The value of curve’s T parameter, at which the new curve should start. The default value is 0.2.

• TMax. The value of curve’s T parameter, at which the new curve should end. The default value is 0.8.

Parameters

This node has the following parameters:

• Join. If checked, the node will always output single flat list of curves.

• NURBS if possible. If checked, for NURBS and NURBS-like curves, the node will calculate a new NURBS curve representing the segment of initial curve. If not checked, the node will always return a generic Curve object. Checked by default. This parameter is available in the N panel only.

• Rescale to 0..1. If checked, then the generated curve will have the domain (allowed range of T parameter values) of [0.0 .. 1.0]. Otherwise, the domain of generated curve will be defined by node’s inputs, i.e. [TMin .. TMax]. Unchecked by default.

Outputs

This node has the following output:

• Segment. The resulting curve segment.

Examples of usage

Generate some random curve (green) and take a subset from it with T values from 0.2 to 0.8 (red):

• Generator-> Random Vector

• Curves-> Cubic Spline

• Curves-> Evaluate Curve

• Viz-> Viewer Draw

Generate several segments of the same curve with different ranges of T parameter, to generate a dashed line:

• Generator-> Random Vector

• Curves-> Cubic Spline

• Curves-> Curve Domain

• Curves-> Evaluate Curve

• Number-> Number Range

• Add: Number-> Scalar Math

• Viz-> Viewer Draw