.. _auto_curve_replace_x_value:

*REPLACE X-VALUE*
=================

Replaces a single specific x-value in a curve with a new x-value, leaving all other points unchanged. Use this worker when a curve contains an erroneous or placeholder x-coordinate that needs to be corrected before further processing.

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

Classification: **process**.

Tagged: ``curve``, ``point-edit``, ``replace``, ``transform``, ``x-value``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve
     - curve
     - vector
     - —
     - 
     - Input curve (x/y vector) whose x-value will be modified; supports multiple curves via the definedMany flag.
   * - Old X-Value
     - x-value
     - scalar
     - —
     - 
     - The existing x-coordinate to search for and replace; must match a point in the curve exactly.
   * - New Y-Value
     - new_x-value
     - scalar
     - 0
     - 
     - The replacement x-coordinate that will overwrite the matched old x-value; defaults to 0 if left blank.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_replace_x_value_output_1
     - curve_replace_x_value_output_1
     - vector
     - Output curve identical to the input but with the specified x-value substituted by the new x-value.

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

.. 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_replace_x_value</code>. Schema hash: <code>c4535b22bba6</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>