.. _VisNonLinearityModel:

===============================
Vis Non Linearity Model Product
===============================

$SetSchemaPath vis/euc-vis-NonLinearityModel.xsd
  
Data product name
=================
.. DataProductNameStart

$PrintDataProductName
   
.. DataProductNameEnd
   
Data product custodian
======================
.. DataProductCustodianStart
   
$PrintDataProductCustodian
   
.. DataProductCustodianEnd
   
Name of the Schema file
=======================
.. NameSchemaStart
   
$PrintSchemaFilename 

.. NameSchemaEnd

Last Edited for DPDD Version
============================
.. NameSchemaStart

1.1

.. NameSchemaEnd

Processing Element(s) creating/using the data product
=====================================================
.. PECreatorStart

VIS - NonLinear Calibration 
   
.. PECreatorEnd
   
Processing function using the data product
==========================================
.. PFUsingStart

VIS -- Processfield correction.

.. PFUsingEnd

Proposed for inclusion in EAS/SAS
==========================================
.. PFUsingStart

Yes

.. PFUsingEnd

Data product elements
=====================
.. DataProductElementsStart

$PrintDataProductElements

.. DataProductElementsEnd
   
Detailed description of the data product
========================================
.. DetailedDescStart

Model produced by the Non Linearity Calibration pipeline.
JSON file produced for each qudrant defining a polynomial function which applies the non linearity correction.  The polynomial coefficients are stored in numpy.poly1d() convention, in decreasing powers, starting from the highest degree. 

Sample of the polynomial product::

  "1-1.E": [
    1.6737016148821795e-32,
    -2.27198105837953e-27,
    9.851909684187759e-23,
    -1.3871686911278604e-18,
    1.0000000000000022,
    -1.204531435924529e-11
  ],
  "1-1.F": [
    3.5022595319426857e-32,
    -2.2128359779516248e-27,
    2.2930667660708266e-23,
    -2.2696813232594336e-19,
    1.0000000000000138,
    -1.2587978278072705e-11
  ],
   
.. DetailedDescEnd