.. _auto_curve_scale_yield:

*SCALE BASED ON RATIO OF THE DESIRED FIRST VALUE*
=================================================

Scales a stress-strain (or similar) curve so that its first non-zero Y value matches a desired yield value, computed as the ratio between the new yield value and the original first non-zero Y value. An optional X-axis scale factor can also be applied. Use this worker to normalise or shift material curves to a target yield stress.

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

Classification: **process**.

Tagged: ``curve``, ``material``, ``ratio``, ``scale``, ``stress-strain``, ``transform``, ``yield``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve To Be Scaled
     - curvetobescaled
     - vector
     - —
     - 
     - The input curve (e.g. engineering stress-strain) to be Y-scaled; the first non-zero Y point is used as the reference yield value for computing the scale ratio.
   * - New Yield Values
     - newyieldvalues
     - scalar
     - —
     - 
     - Target yield value (scalar, same units as the curve's Y axis, e.g. MPa) that the first non-zero Y point of the curve will be scaled to match.
   * - Scale X
     - scalex
     - scalar
     - 1.0
     - 
     - Multiplicative scale factor applied to the X axis of the curve (dimensionless); defaults to 1.0, meaning no X scaling is performed.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_scale_yield_output_1
     - curve_scale_yield_output_1
     - vector
     - The scaled output curve with its Y axis adjusted so the first non-zero Y value equals the specified new yield value, and X axis multiplied by the optional scale factor.

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

- data.curve.transform
- engineering.material.calibration
- 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_scale_yield <https://www.d3view.com/api/workflow/example?id=curve_scale_yield>`_

.. 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_scale_yield</code>. Schema hash: <code>007a7c21e993</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>