Retrieve a list of simscape.logging.Node names from simlog or other inner nodes

How do you retrieve as a cell, strings or other indexable array a list of nodes in the simlog?

example:

ssc_dcmotor
sim('ssc_dcmotor');

that returns

simlog_ssc_dcmotor

I want an array:

list(1) = 'ERef';
list(2)  = 'DC_Motor'
list(3)  = 'DC_Voltage';

etc.

From there I could call or similar.

eval('simlog_ssc_dcmotor.list(2)')

The same with 'DC_Motor' (which would be list(2))

how do I generate a list of its simscape.logging.Nodes of 'DC_Motor'?

MATLAB comes with print(simlog_ssc_dcmotor.) but you cannot store it like:

a = print(simlog_ssc_dcmotor);

Answer 1

[Yifeng Tang]

fieldnames(simlog_ssc_dcmotor) seems to work OK for me. Same way you would get the names of a structure variable.

ssc_dcmotor
sim('ssc_dcmotor');
list = fieldnames(simlog_ssc_dcmotor);

% list =
% 
%   10×1 cell array
% 
%     {'id'          }
%     {'savable'     }
%     {'exportable'  }
%     {'ERef'        }
%     {'Sensing'     }
%     {'Load_Torque' }
%     {'DC_Voltage'  }
%     {'DC_Motor'    }
%     {'MRRef_Motor' }
%     {'MRRef_Torque'}

Just ignore the first three.

[CCC]

It worked like a charm with eval to create the lists of sub components and retrieve values().

I find rather strange to use that method if you don't know the names of the components a prori.

Thank you very much.