Enable visibility

You can create links to hide objects based on the values of various tags by using visibility links. Using visibility links, you can:

• Create the impression that moving objects only move in one direction, by hiding them when they move in the wrong direction.

• Create the impression that a moving object has stopped.

• Cause an object such as an alarm or error message to become visible only when it is activated.

  Tip: Discrete expressions can contain analog tags, for example,
  TankLevel >= 75. In this example, when the value of the tag, TankLevel is greater than or equal to 75, the object becomes visible in the window.

Create a visibility link

1. Select the object you want to apply the animation to.

2. On the Draw menu, in the Mode group, select Animate.

   Alternatively, right-click the object and then select Animation Links.

   The Animation Links window appears.

3. In the Miscellaneous section, select Visibility.

   The Object Visibility -> Discrete Value dialog box appears.

   

4. In the Expression box, type the name of a discrete tag or an expression that equates to a discrete value.

5. Select the Visible State for the object. If you select Off, the object is invisible when the value of the expression is true. If you select On, the object is visible when the value of the expression is true.

6. Select OK.