INDEX_ADD_DOF_AND_RELA.m

%--------------------------------------------------------------------------
% INDEX.ADD_DOF_AND_RELA
%--------------------------------------------------------------------------
% Add degrees of freedom in the system when a kinematic relationship is
% prescribed

%--------------------------------------------------------------------------
% Syntax
%--------------------------------------------------------------------------
[IN,new_num] = ADD_DOF_AND_RELA(IN,loc_dof,cur_node)
[IN,new_num] = INDEX.ADD_DOF_AND_RELA(IN,loc_dof,cur_node)

%--------------------------------------------------------------------------
% Description
%--------------------------------------------------------------------------
% INDEX.ADD_DOF_AND_RELA allows to update the indexation table when 
% adding new degrees of freedom in the system. Ths method is used when a
% kinematic relationship is prescribed.

%--------------------------------------------------------------------------
% Input arguments
%--------------------------------------------------------------------------
% IN          : INDEX object
% loc_dof     : local number of degrees of freedom (type)
% cur_node    : set of NODE objects

%--------------------------------------------------------------------------
% Output arguments
%--------------------------------------------------------------------------
% IN          : INDEX object - updated object
% new_num     : scalar - updated number of degrees of freedom

%--------------------------------------------------------------------------
% Example
%--------------------------------------------------------------------------
[IN,new_num] = ADD_DOF_AND_RELA(IN,loc_dof,cur_node)

IN = 

  INDEX with properties:

      tab_index: [539x3 double]
     dof_number: 476
    lag_number1: 63
    lag_number2: 0
       idx_phys: []
       idx_Lag1: []
       idx_Lag2: []
       dof_Rela: 539


new_num =

   539