.. _auto_curves_lookup_get_text:

* THIS FUNCTION LOOKS INTO A COLLECTION OF CURVES AND RETURNS  CURVENAME=>LOOKUP VALUE*
=======================================================================================

Iterates over a collection of curves and extracts a specified scalar lookup value (e.g. xmax, ymin, first intersection) from each curve, returning the results as a comma-separated text string keyed by curve name. Use this worker when you need a quick per-curve KPI or attribute summary from a curve group without further numerical processing.

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

Classification: **process**.

Tagged: ``batch``, ``curve_group``, ``curves``, ``kpi``, ``lookup``, ``scalar_extraction``, ``text_output``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve Group
     - curve_group
     - vector
     - —
     - 
     - Collection of input curves (curve group) to iterate over; each curve is queried for the selected lookup value. Accepts multiple curves; leave empty only if no curve data is available upstream.
   * - Type
     - type
     - scalar
     - xfirst
     - 
     - The lookup operation to apply to every curve in the group — e.g. 'xmax' returns the maximum X value, 'ymin' the minimum Y value, 'first_intersect_x' the X coordinate of the first zero/threshold crossing, 'name' the curve's label, etc. Defaults to 'xfirst' (first X-axis value) when left unset.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curves_lookup_get_text_output_1
     - curves_lookup_get_text_output_1
     - text
     - Comma-separated text string of curveName→lookup-value pairs, one entry per curve in the input group; dimensionless text unless the selected lookup type carries physical units inherited from the source curves.

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

- data.curve.pair
- data.statistics

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

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

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_lookup_get_text</code>. Schema hash: <code>3263952b518e</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>