.. _auto_curve_get_cyclic_data:

*CURVE GET CYCLIC DATA*
=======================

Extracts cyclic (loading/unloading) segment data from a curve, splitting it into individual cycles or returning all cycles at once. Use this worker to isolate specific loading, unloading, or combined loading-unloading portions of a cyclic test curve for downstream analysis.

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

Classification: **process**.

Tagged: ``curve_transform``, ``cycle_extraction``, ``cyclic``, ``fatigue``, ``hysteresis``, ``loading``, ``unloading``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve In
     - curve_in
     - vector
     - —
     - 
     - Input curve (x/y vector) representing the cyclic signal to be decomposed; typically a force-displacement or stress-strain time history from a cyclic test.
   * - Scale X
     - scale_x
     - scalar
     - 1
     - 
     - Multiplicative scale factor applied to the x-axis before cycle extraction (dimensionless); defaults to 1 (no scaling).
   * - Scale Y
     - scale_y
     - scalar
     - 1
     - 
     - Multiplicative scale factor applied to the y-axis before cycle extraction (dimensionless); defaults to 1 (no scaling).
   * - Skip Negative
     - ignore_negative_x
     - scalar
     - yes
     - 
     - Whether to skip data points with negative x-values after scaling before computing cycle statistics; set to 'yes' (default) to ignore negative x, or 'no' to include all points.
   * - CN-WBAC
     - cyclenumber
     - scalar
     - -1
     - 
     - Index of the specific cycle to extract (1-based integer); use -1 (default) to return data for all detected cycles.
   * - Type Of Data To Extract
     - type_of_data_to_extract
     - scalar
     - loading_unloading
     - 
     - Portion of each cycle to return: 'loading_unloading' (default, full cycle), 'loading' (ascending branch only), or 'unloading' (descending branch only).

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_get_cyclic_data_output_1
     - curve_get_cyclic_data_output_1
     - vector
     - Extracted cyclic curve segment(s) as a vector, containing only the requested loading/unloading branches for the selected cycle(s).

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

- data.curve.transform
- engineering.durability
- engineering.material.characterization

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

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

.. raw:: html

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   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_get_cyclic_data</code>. Schema hash: <code>7c6f6f62a2b1</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>