Item Content JEVEUX
=========================




DESCRIPTEUR_GRANDEUR
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It is a vector of integers. It describes the CMPS that are actually present in a size.

All possible CMPS of a size are described in the GRANDEURS catalog. They are ordered there. To describe the CMPS actually present in a quantity we decide to keep a vector of Booleans that answers the following question: is the th CMP (in the order of the catalog of quantities) present in the quantity we want to describe? To save memory space (and disk space), we decide to "code" this vector of Booleans on a vector of integers: on each integer (called integer_coded), we code 30 Booleans.

Example:

If the size 'DEPL_R' was described in the catalog by:


.. csv-table::

    "DX", "DY", "DZ", "DRX "," "," DRY "," DRZ "," LAGR"


On a beam-type element, the dimension_descriptor is equal to 126. In fact:


.. csv-table::

    "", "DX", "DY", "DZ", "DRX "," "," DRY "," DRZ "," LAGR"
    "", "1", "1", "1", "1", "1", "1", "1", "0"
    "126 =", "21", "+ 22", "+ 22", "+ 23", "+ 24", "+ 25", "+ 26", ""


On a solid element, the descriptor_quantity is equal to 14. In fact:


.. csv-table::

    "", "DX", "DY", "DZ", "DRX "," "," DRY "," DRZ "," LAGR"
    "", "1", "1", "1", "1", "0", "0", "0", "0"
    "14 =", "21", "+ 22", "+ 22", "+ 23", "", "", ""


On an additional node created for the introduction of kinematic conditions by dualization, the descriptor_quantity is equal to 128. In fact:


.. csv-table::

    "", "DX", "DY", "DZ", "DERX "," "," DRY "," DRZ "," LAGR"
    "", "0", "0", "0", "0", "0", "0", "1"
    "128 =", "", "", "", "", "", "", "", "27"


A descriptor_quantity is a vector of coded_integers: V of dimension n_ec where n_ec is the number of coded_integers necessary to describe the quantity described in the catalog.


.. csv-table::

    "n_ec", "number of CMPS in the catalog"
    "1", "1 to 30"
    "2", "31 to 60"
    "3", "..."


The th integer_coded indicates the presence (or not) of CMPS numbered from 30*(i-1) +1 → 30*i.