Is possible to configure the "Data source" of a parameter in Data Dictionary to another file?

Hi, I want to put all commom parameters of my different models into a single shared data dictionary. I can see there is a option "Data Source" with "xxxx.sldd" for each parameter, but I can't specify a specific file except the file which holds the parameter.

So is this possible? Thx.

Answer 1

[Donn Shull]

You can not change the 'Data Source' for an item directly. Here is an example of how to achieve that result using reference dictionaries. In this example VehicleDictionary.sldd is a container dictionary with with no data items of its own. TransmissionDictionary.sldd, EngineDictionary.sldd, and CommonDictionary.sldd are 'DataSource' dictionaries for VehicleDictionary.sldd. TransmissionDictionary.sldd and EngineDictionary.sldd both contain VehicleSpeed. In this example the Engine Version of Vehicle Speed is copied to the CommonDictionary.sldd and then VehicleSpeed is deleted from the Engind and Transmission dictionaries. The effectively changes the VehicleSpeed 'Data Source' to CommonDictionary.sldd.

% first create the individual data dictionaries
vehicleSldd = Simulink.data.dictionary.create('VehicleDictionary.sldd');
transmissionSldd = Simulink.data.dictionary.create('TransmissionDictionary.sldd');
engineSldd = Simulink.data.dictionary.create('EngineDictionary.sldd');
commonSldd = Simulink.data.dictionary.create('CommonDictionary.sldd');

% add some data to the transmission dictionary
transDataSection = transmissionSldd.getSection('Global');
transDataSection.addEntry('VehicleSpeed', Simulink.Signal);
transDataSection.addEntry('FirstSecondShiftPoint', Simulink.Parameter);

% add some data to the engine dictionary with a duplication from transmission
engDataSection = engineSldd.getSection('Global');
engDataSection.addEntry('VehicleSpeed', Simulink.Signal);
engDataSection.addEntry('MassAirFlow', Simulink.Signal);

% create the composite dictionary
vehicleSldd.addDataSource('TransmissionDictionary.sldd');
vehicleSldd.addDataSource('EngineDictionary.sldd');
vehicleSldd.addDataSource('CommonDictionary.sldd');

% show the referenced dictionaries
vehicleSldd.DataSources

ans =

    3×1 cell array

      'CommonDictionary.sldd'
      'EngineDictionary.sldd'
      'TransmissionDictionary.sldd'

% show the design items including the duplications
vehicleSldd.listEntry;
  Section       Name                    Status   DataSource                    LastModified       LastModifiedBy   Class

    Design Data   FirstSecondShiftPoint   new      TransmissionDictionary.sldd   2017-08-07 13:52   Donn             Simulink.Parameter
    Design Data   MassAirFlow             new      EngineDictionary.sldd         2017-08-07 13:55   Donn             Simulink.Signal
    Design Data   VehicleSpeed            new      TransmissionDictionary.sldd   2017-08-07 13:52   Donn             Simulink.Signal
    Design Data   VehicleSpeed            new      EngineDictionary.sldd         2017-08-07 13:55   Donn             Simulink.Signal

% copy the engine VehicleSpeed to the common dictionary
commonDataSection = commonSldd.getSection('Global');
commonDataSection.addEntry('VehicleSpeed', engDataSection.getEntry('VehicleSpeed').getValue);

% show the design items including the duplications
vehicleSldd.listEntry;
  Section       Name                    Status   DataSource                    LastModified       LastModifiedBy   Class

    Design Data   FirstSecondShiftPoint   new      TransmissionDictionary.sldd   2017-08-07 13:52   Donn             Simulink.Parameter
    Design Data   MassAirFlow             new      EngineDictionary.sldd         2017-08-07 13:55   Donn             Simulink.Signal
    Design Data   VehicleSpeed            new      TransmissionDictionary.sldd   2017-08-07 13:52   Donn             Simulink.Signal
    Design Data   VehicleSpeed            new      EngineDictionary.sldd         2017-08-07 13:55   Donn             Simulink.Signal
    Design Data   VehicleSpeed            new      CommonDictionary.sldd         2017-08-07 14:01   Donn             Simulink.Signal

% remove vehicle speed from the engine and transmission dictionaries
engDataSection.deleteEntry('VehicleSpeed');
transDataSection.deleteEntry('VehicleSpeed');

% show the design items including the duplications
vehicleSldd.listEntry;
  Section       Name                    Status   DataSource                    LastModified       LastModifiedBy   Class

    Design Data   FirstSecondShiftPoint   new      TransmissionDictionary.sldd   2017-08-07 13:52   Donn             Simulink.Parameter
    Design Data   MassAirFlow             new      EngineDictionary.sldd         2017-08-07 13:55   Donn             Simulink.Signal
    Design Data   VehicleSpeed            new      CommonDictionary.sldd         2017-08-07 14:01   Donn             Simulink.Signal