GENERATE A CATMUL-ROM-SPLINE FOR CURVE¶
Fits a Catmull-Rom spline to an input curve, producing a smoothed version with a configurable number of interpolated points. Use this worker to resample or smooth noisy curves while preserving the original shape through the control points.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Curve In | curve_in | vector | — | Input curve (x/y vector) to be smoothed; this serves as the set of control points through which the Catmull-Rom spline is fitted. | |
| Number For Points | number_of_points | scalar | 100 | Total number of evenly-spaced points to evaluate on the output spline; default is 100 — increase for higher resolution, decrease for coarser output. | |
| Alpha | alpha | scalar | 0.1 | Catmull-Rom alpha parameter controlling spline parameterisation: 0 = uniform, 0.5 = centripetal (recommended), 1 = chordal; default is 0.1. | |
| Skip Negative | skip_negative | scalar | yes | When set to ‘yes’ (default), negative y-values are excluded before constructing the spline — useful for physical quantities that cannot be negative (e.g. force, displacement magnitude). | |
| Skip Sharp Transitions | skip_sharp_transitions | scalar | yes | When set to ‘yes’ (default), points that form abrupt slope discontinuities are omitted to prevent oscillation artefacts in the fitted spline. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curve_catmul_rom_spline_output_1 | curve_catmul_rom_spline_output_1 | vector | Smoothed output curve (x/y vector) evaluated at the requested number of points along the fitted Catmull-Rom spline. |
Disciplines¶
- data.curve.transform
- data.signal_processing
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=curve_catmul_rom_spline
Auto-generated from transformation schema. Worker id: curve_catmul_rom_spline. Schema hash: 9bcc25932d0a. Hand-curated docs in workerexamples/ override this page when present.