.. _auto_curve_trim:

*TRIM CURVE BASED ON Y POINTS AFTER A CERTAIN X-VALUE*
======================================================

Trims a curve by discarding all points before a minimum X value and then retaining only those points whose Y values fall within a specified [min_Y, max_Y] band. Use this worker to isolate a region of interest on a time-history or XY curve before downstream processing.

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

Classification: **process**.

Tagged: ``curve_trim``, ``filter``, ``process``, ``trim``, ``x_threshold``, ``y_band``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve
     - curve
     - vector
     - —
     - 
     - Input XY curve (vector) to be trimmed; must contain paired X and Y data points.
   * - Min X
     - min_x
     - scalar
     - 0
     - 
     - Minimum X value (scalar); all curve points with X less than this threshold are discarded before Y-band filtering is applied. Defaults to 0.
   * - Min Y
     - y_min
     - scalar
     - 0
     - 
     - Lower bound of the Y-value band (scalar); points with Y below this value are excluded. Defaults to 0.
   * - Max Y
     - y_max
     - scalar
     - 0
     - 
     - Upper bound of the Y-value band (scalar); points with Y above this value are excluded. Defaults to 0 — set explicitly to the desired ceiling.
   * - Stop On First Match
     - stop_on_first_match
     - scalar
     - yes
     - 
     - Controls whether trimming stops at the first point that satisfies the Y-band condition ('yes') or continues scanning all remaining points ('no'). Defaults to 'yes'.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_trim_output_1
     - curve_trim_output_1
     - vector
     - Trimmed output curve (vector) containing only the points that passed both the min-X threshold and the [min_Y, max_Y] band filter.

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

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_trim</code>. Schema hash: <code>802fb153ca2c</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>