.. _auto_curves_replacebyindex:

*REPLACE BY INDEX*
==================

Replaces a single curve within a collection at a specified zero-based index with a new curve. Use this worker when you need to swap out one curve in a group without rebuilding the entire collection.

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

Classification: **process**.

Tagged: ``curve_group``, ``index``, ``replace``, ``swap``, ``zero-based``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curves
     - curves
     - vector
     - —
     - 
     - The input collection of curves (curve group) in which one entry will be replaced; accepts multiple curves; zero-based indexing applies.
   * - Curve Index
     - index
     - integer
     - 0
     - 
     - Zero-based integer index identifying which curve in the collection to replace; defaults to 0 (the first curve).
   * - Curve To Replace
     - curveto_replace
     - vector
     - —
     - 
     - The new curve that will be inserted at the specified index, overwriting the existing curve at that position.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curves_removebyindex_output_1
     - curves_removebyindex_output_1
     - vector
     - The updated curve group with the curve at the specified index replaced by the supplied replacement curve; same size as the input collection.

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

- data.curve.pair

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

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

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_replacebyindex</code>. Schema hash: <code>471b6401c619</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>