.. _auto_curves_remove_intersections:

* FIND AND REMOVE THE INTERSECTIONS BETWEEN CURVES*
===================================================

Detects and removes intersections between a group of curves relative to a chosen baseline curve, using either a Y-offset or rotation method. Optionally syncs X extents before detection and controls the vertical ordering of the adjusted curves. Use this worker to enforce non-crossing constraints on curve families (e.g., corridor bounds, percentile envelopes).

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

Classification: **process**.

Tagged: ``corridor``, ``curve_ordering``, ``curves``, ``envelope``, ``intersection``, ``remove_intersections``, ``rotate``, ``sync``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curves
     - curves
     - vector
     - —
     - 
     - Collection of input curves (vector) that may contain mutual intersections; accepts multiple curves simultaneously.
   * - Baseline Curve Index
     - baseline_curve_index
     - scalar
     - 0
     - 
     - Zero-based index identifying the reference (baseline) curve against which intersections are detected and resolved; defaults to 0 (first curve).
   * - Method Of Removal
     - methodof_removal
     - float
     - y_offset
     - 
     - Algorithm used to eliminate intersections: 'y_offset' shifts non-baseline curves vertically, 'rotate' tilts them; defaults to 'y_offset'.
   * - Min X
     - min_x
     - float
     - 0
     - 
     - X-axis threshold below which detected intersections are ignored; intersections occurring before this value are not resolved; defaults to 0.
   * - Sync Before Checking For Intersections
     - syncbeforechecking
     - scalar
     - yes
     - 
     - When set to 'yes' (default), all curves are synchronised to a common Xmin/Xmax before intersection detection to ensure a consistent X domain.
   * - Order
     - order
     - scalar
     - up
     - 
     - Desired vertical ordering of the curves after intersection removal: 'up' (default) stacks curves upward from the baseline, 'down' stacks them downward.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curves_remove_intersections_output_1
     - curves_remove_intersections_output_1
     - vector
     - Adjusted curve group (vector) with all detected intersections resolved, preserving the original curve count and X domain.

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

- data.curve.pair
- data.curve.transform

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

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

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_remove_intersections</code>. Schema hash: <code>dc286e6ce6ce</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
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