Poly Spline surface node

The Polyspline op fits a spline curve to a polygon or hull and outputs a polygonal approximation of that spline.

See also: Fit, Resample, Poly Patch, Poly Loft

The Polyspline op fits a spline curve to a polygon or hull and outputs a polygonal approximation of that spline. You can choose either to create divisions between the original points, or to ignore the position of the original points and divide the shape into segments of equal lengths.

Polyspline can optionally resample the output curve, providing control over the length and number of its segments.

Tip

When using this op, it is useful to enable Points display in the Viewport options dialog. This way you can see exactly what effect the op is having.

Parameters

Group

Subset of faces to use

Spline Type

Spline type: Bezier, Special Bezier, Special Smooth Bezier, Degree 2 Bezier, BSpline, Cardinal, or Linear

Off	Output spline open
On	Output spline closed
If polygon does	Use the closure of the input face

Division Method

Standard	Do not resample curve
Even Length Segments	Resample - ensure equal segment lengths
Even X Segments	Resample - ensure segments have equal length in x
Even Y Segments	Resample - ensure segments have equal length in y
Even Z Segments	Resample - ensure segments have equal length in z

Segment Length

The length of the segments in the resampled curve. If set to zero, segment length is calculated using the Output Divisions parameter.

Output Divisions

Number of segments in the resampled curve. If set to zero, the number of output divisions is calculated using the Segment Length parameter.

Sample Divisions

Number of spline divisions before resampling

First CV Count

Number of times to repeat the first control vertex, determining its multiplicity

Last CV Count

Number of times to repeat the last control vertex, determining its multiplicity

CV Tension

Spline tension

Usages in other examples

Example name	Example for