.. _auto_curve_verify:

*PERFORMS VERIFICATION ON VARIOUS ATTRIBUTES ON THE CURVES*
===========================================================

Verifies that a curve satisfies a specified geometric or numeric condition — such as monotonicity, slope sign, or x-axis origin constraints. Use this worker to validate curve quality before downstream processing or material calibration steps.

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

Classification: **process**.

Tagged: ``curve``, ``monotonic``, ``quality_check``, ``slope``, ``transformations``, ``validation``, ``verification``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve To Check
     - curvetocheck
     - vector
     - —
     - 
     - The input curve (x/y vector pair) to be validated; supply any single curve whose attributes need to be checked before further processing.
   * - Check Type
     - checktype
     - list
     - none
     - ✓
     - The verification rule to apply: choose from x_monotonic (x values strictly increasing), y_monotonic (y values strictly increasing), positive_first_slope, positive_last_slope, xfirst_eq_zero (first x value equals 0.0), or xfirst_gt_zero (first x value greater than 0.0); defaults to 'none' (no check performed).

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - Curve Verification Result
     - curve_verify_output_1
     - text
     - Text result of the verification check — typically a pass/fail status or descriptive message indicating whether the curve satisfies the selected condition.

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

- data.curve.transform
- data.statistics

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

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

.. 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_verify</code>. Schema hash: <code>2a1f6fb50988</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>