1. But

The OBSERVATION macro command uses the PROJ_CHAMP, CREA_CHAMP,, CREA_RESU,, MODI_REPERE, and POST_RELEVE_T operators to:

• • • project a field from a numerical model to an experimental model,

    • change local landmarks,

    • select the « measurement » degrees of freedom,

• • • calculate the average value of a deformation field in order to obtain the equivalent of the information delivered by a deformation gauge

This macro command accepts an evol_elas, dyna_trans, dyna_harmo or a mode_meca concept as input. The product concept is of the same type as the input concept. Warning: Code_Aster does not remember the marks in which the fields are written. The result of this macro command should therefore not be used in subsequent Code-Aster calculations. It can be used for post-processing in Python, or for visualizations.