.. _auto_curve_integrate:

*COMPUTE THE INTEGRATE OF THE CURVE*
====================================

Computes the numerical integral of an input curve using the trapezoidal rule. Optionally ignores positive or negative values before integrating, enabling one-sided area calculations. Use this worker wherever a cumulative integral (e.g., velocity from acceleration, displacement from velocity) is needed on a time-history or XY curve.

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

Classification: **process**.

Tagged: ``area_under_curve``, ``curve``, ``integrate``, ``numerical_integration``, ``signal_processing``, ``time_history``, ``trapezoidal``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve In
     - curve_in
     - vector
     - —
     - 
     - Input XY curve (vector) to be integrated; typically a time-history such as acceleration or velocity — must be provided before execution.
   * - Ignore
     - ignore
     - list
     - none
     - 
     - Selects which signed values to zero out before integration: 'none' integrates all values (default), 'positive' ignores positive values, 'negative' ignores negative values — leave as 'none' for a full unsigned integral.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_integrate_output_1
     - curve_integrate_output_1
     - vector
     - Resulting integrated curve (vector) with the same X-axis as the input and Y-axis representing the cumulative integral (e.g., mm/s if input was mm/s²).

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

- data.curve.transform
- data.signal_processing

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

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

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_integrate</code>. Schema hash: <code>e3c8ae5ee67d</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>