.. _auto_curve_rbf_smoothing:

*SMOOTH USING RBF KERNEL*
=========================

Smooths an input curve using a Radial Basis Function (RBF) kernel, redistributing it onto a uniform grid of output points. Use this worker to remove high-frequency noise from time-history or force-displacement curves while preserving the overall signal shape.

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

Classification: **process**.

Tagged: ``curve``, ``kernel``, ``noise_reduction``, ``radial_basis_function``, ``rbf``, ``smoothing``.

Inputs
------

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   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve To Be Derived
     - curvetobesmoothed
     - vector
     - —
     - 
     - The input curve (x/y vector pair) to be smoothed; accepts any time-history or spatial curve in d3VIEW curve format.
   * - Smoothness
     - smoothness
     - scalar
     - 0.001
     - 
     - RBF smoothness (regularisation) parameter controlling the trade-off between fidelity and smoothness; smaller values (e.g. 0.001, default) stay closer to the raw data, larger values yield a smoother output.
   * - Number of Points
     - num_points
     - scalar
     - 100
     - 
     - Number of uniformly spaced output points on which the smoothed RBF is evaluated; default is 100 — increase for higher output resolution.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - RBF Smoothed Curve
     - curve_sm_output_1
     - vector
     - The RBF-smoothed output curve resampled at the requested number of points, in the same units as the input curve.

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

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_rbf_smoothing</code>. Schema hash: <code>cdb0766ed944</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
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