A Reference Input node (

) is similar to the
Selectable Input node but the valid values are entities in a list in the model. The list can be the physics features, either the siblings to this feature of the siblings to the parent feature, the physics, the multiphysics coupling features, the materials, or the coordinate systems in the model. It is possible to add more valid values, typically
None, by adding an
Allowed Values feature as a subnode to the
Reference Input node.
To add a Reference Input, first add a feature node or property node (for example, a
Generic Feature,
Domain Condition, or
Device Model Feature), then:
The Settings window of a reference input has the following sections:
Almost the same as for the User Input. From the
Reference list, choose one for the following options:
The list can be filtered by adding a type to the Filtering types list. A type is, for example, a physics feature ID. The filtering can also be done by selecting the
Use condition on list check box and then add a condition. For example, a condition that states that a user input in the features in the list should have a certain value.
The Default value list can either be the
First allowed value (the default) or
Custom default. The latter allows you to enter an arbitrary default value as long as it is among the allowed values defined for the input.
See User Input for the rest of the settings.