.. _auto_lucy_mpdb_measurements:

*COMPUTE LUCY MPDB MEASUREMENTS*
================================

Computes LUCY MPDB (Mobile Progressive Deformable Barrier) measurements from an LS-DYNA d3plot result file. Extracts geometry-based KPIs — such as cladding/backplate deformation and barrier interaction distances — in a specified velocity direction, and returns a structured measurement view for post-processing and reporting.

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

Classification: **process**.

Tagged: ``backplate``, ``barrier``, ``cladding``, ``crash``, ``d3plot``, ``deformation``, ``lucy``, ``measurements``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - D3plot Name
     - d3plot name
     - string
     - —
     - 
     - Path or filename of the LS-DYNA d3plot binary results file to read; this is the primary simulation output from which all measurements are extracted.
   * - Cladding Part
     - cladding_part
     - text
     - —
     - 
     - Part ID (PID) of the MPDB cladding component; used to measure cladding deformation and surface interaction with the barrier.
   * - Backplate Part
     - backplate_part
     - text
     - —
     - 
     - Part ID (PID) of the MPDB backplate component; used to track backplate displacement and compute ODB/intrusion metrics.
   * - Barrier Parts
     - barrier_parts
     - text
     - —
     - 
     - One or more part IDs (PIDs) representing the deformable barrier structure (comma-separated, e.g. PID1, PID2); all listed parts are included in barrier-side measurement calculations.
   * - Velocity Direction
     - velocity_direction
     - string
     - 1 0 0
     - 
     - Unit vector defining the primary impact/velocity direction as three space-separated values (e.g. '1 0 0' for positive X); defaults to '1 0 0' — change only when the impact axis in the model differs from the global X-axis.
   * - Max Dist
     - max_dist
     - text
     - —
     - 
     - Optional maximum search distance (in model length units, e.g. mm) used to filter or cap measurement computations; leave blank to apply no distance limit.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - lucy_mpdb_measurements_output_1
     - lucy_mpdb_measurements_output_1
     - view
     - Structured view containing all computed LUCY MPDB measurements (deformation depths, barrier interaction metrics, and KPI values) extracted from the d3plot for downstream reporting or post-processing.

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

- cae.postprocessing.extraction
- cae.postprocessing.response
- engineering.crash.dynamics

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>lucy_mpdb_measurements</code>. Schema hash: <code>b52972a09d5e</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
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