.. _auto_curve_remove_negative_slope:

*REMOVE LAST NEGATIVE SLOPE*
============================

Trims a curve by removing the trailing region that exhibits a negative slope, keeping only the data up to the last monotonically non-decreasing segment. Use this to clean up force-displacement or stress-strain curves where post-peak drop-off should be discarded before further processing.

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

Classification: **process**.

Tagged: ``cleanup``, ``curve``, ``monotonic``, ``negative_slope``, ``post_peak``, ``remove_slope``, ``trim``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve To Be Operated On
     - curvetobeoperatedon
     - vector
     - —
     - 
     - The input curve (X/Y vector) whose trailing negative-slope region will be removed; typically a force-displacement or stress-strain curve.
   * - Percentage
     - percentage
     - text
     - 0.05
     - 
     - Reserved slope-tolerance factor (dimensionless fraction, default 0.05); currently not used by the underlying transformer — leave at default.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_remove_negative_slope_output_1
     - curve_remove_negative_slope_output_1
     - vector
     - The trimmed output curve with the last negative-slope segment removed, preserving the original X/Y units and scaling of the input curve.

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

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_remove_negative_slope</code>. Schema hash: <code>484a8d55c624</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>