Example 2: Verify Behavior of Associated Symbols

Here, we examine how the selection of Choices and Options affects symbols that are associated with them. For an overview of how an Object Wizard behaves in Test mode, see About Object Wizard Behavior in Test Mode.

Start by creating new symbols and associate them with some Object Wizard Choices.

1. Create three new symbols. In this example, each symbol contains an embedded Situational Awareness Library graphic.

   • 2WayValve

   • 3WayValve

   • 4WayValve

2. Highlight one of the Choices in the Valve Type Choice Group (1), then select the symbol with the corresponding name and drag it to the Associations pane (2). For example, with the 2-Way valve type Choice highlighted in the Choices and Options pane, drag and drop the 2WayValve symbol from the Symbols pane to the Associations pane.

   Make sure that the Trimming checkbox (3) is selected in the Associations pane; the default state for symbols is unselected. See Trimming for additional information.

   

3. Repeat for the remaining valve types (with trimming enabled).

4. Create two more symbols: Symbol001 and Symbol002. We will leave these symbols unassociated with any particular Choice or Option. Since they are not a part of the Object Wizard, these symbols will be included in all objects that are derived from our Object Wizard. It does not matter if trimming is enabled for these, since without any Object Wizard association, they are considered to be owned by the object.

5. To verify attribute behavior, select the Test button.

   • With the default Object Wizard selections made (in this case, 2-Way Valve), the 2WayValve symbol associated with this choice is shown, along with the two symbols not associated with any Wizard Choices or Options (Symbol001 and Symbol002). These can be seen in the Symbols pane. Note the message at the bottom of the Symbols pane that states "3 of 5 displayed." This is because the 2WayValve and 3WayValve symbols are hidden.

     

   • Change the Valve Type to 3-Way. This displays the 3WayValve symbol and hides the 2WayValve and 4WayValve symbols.

   • Change the Valve Type to 4-Way. This displays the 4WayValve symbol and hides the 2WayValve and 3WayValve symbols.

     Note: When configuring an instance from an Object Wizard, unused attributes that have trimming enabled are not propagated to the instance. Only attributes not associated with the Object Wizard, and attributes with trimming enabled that evaluate as required, are present in the instance after the instance is saved. Trimming does not occur until after an object is saved, and any overrides a user enters for a trimmable attribute remain in memory until the user saves the object.