.. _auto_curves_critical:

*DOWNSIZE BY TAKING ONLY CRITICAL POINTS*
=========================================

Reduces one or more curves to their critical points only (local minima, maxima, and inflection-like vertices), discarding redundant intermediate samples. Use this worker to compress curve data before downstream processing or visualization without losing key shape features.

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

Classification: **process**.

Tagged: ``critical_points``, ``curve_compression``, ``decimation``, ``downsize``, ``transformations``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curves
     - curves
     - vector
     - —
     - 
     - One or more input curves (x/y vector pairs) to be reduced; supports multiple curves in a single pass. Optional — if omitted the worker produces no output.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curves_critical_output_1
     - curves_critical_output_1
     - vector
     - The down-sampled curves retaining only critical points (peaks, valleys, and key inflection vertices) from each input curve, preserving the original x/y units and format.

Disciplines
-----------

- data.curve.transform

Runnable example
----------------

A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: `/api/workflow/example?id=curves_critical <https://www.d3view.com/api/workflow/example?id=curves_critical>`_

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_critical</code>. Schema hash: <code>ef087340441b</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>