.. _auto_curves_splinify:

*FIT THE CURVE BASED ON SPLINES*
================================

Fits one or more input curves using cubic spline interpolation, producing a smoothed curve re-sampled at a specified number of points. Use this worker to regularise noisy or irregularly-sampled curves before downstream analysis or comparison.

When to use
-----------

Classification: **process**.

Tagged: ``curve_fit``, ``interpolation``, ``resample``, ``smoothing``, ``spline``, ``splinify``, ``transformations``.

Inputs
------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curves In
     - curves_in
     - vector
     - —
     - 
     - One or more input curves (x/y vector pairs) to be spline-fitted; accepts multiple curves in a single pass.
   * - RADC
     - rad_c
     - scalar
     - 0.05
     - 
     - Spline smoothing radius/tolerance parameter (RADC); dimensionless float, default 0.05 — increase to produce a smoother, less tightly fitted spline.
   * - Number Of Points
     - numberof_points
     - scalar
     - 100
     - 
     - Number of evenly-spaced output points to resample the fitted spline onto; integer, default 100 — increase for higher output resolution.

Outputs
-------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20

   * - Label
     - ID
     - Type
     - Description
   * - curves_splinify_output_1
     - curves_splinify_output_1
     - vector
     - Spline-fitted and resampled output curve(s) corresponding to each input curve, returned as x/y vector pairs at the requested number of points.

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=curves_splinify <https://www.d3view.com/api/workflow/example?id=curves_splinify>`_

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_splinify</code>. Schema hash: <code>be2fe8eda01c</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>