Element Constraints

Constraints are concepts which constrain the placement of annotations.

A constraint is hard or soft. A hard constraint must comply with the AVEVA E3D Whitespace Optimizer settings, setting the allowable (Sheet) area where the annotation can be placed. A soft constraint defines areas where the annotation is best placed within the (hard constraint) defined areas of the Sheet using the AVEVA E3D Whitespace Optimizer settings.

The element constraints can be defined for an individual annotation element by the Element Style unless superseded by Template Settings or user-defined explicit values.

The Element constraints tab displays a list of available element constraint styles. Input values in the fields or select values from the drop-down lists to modify the element constraints.

Right-click on an element constraint style and select Rename from the drop-down menu to rename the element constraint style.

If required, enter a Description for the element constraint style.

The Attribute Hint part of the window displays a hint to the constraints functionality.

Element constraints can be specified By Style, which inherits the value from the selected element constraints style. Refer to for further information.

Element constraints can be specified By Template, which inherits the value from the symbol template constraints. Refer to Template Constraints for further information.

Element constraints can be specified Use Generic, which inherits the value from the generic constraints settings. Refer to Generic Constraints for further information.

For example:

• If an element is set to By Template and the template is set to Unset, the WESTYL is used.

• If an element is set to By Template and the template is set to Use Generic, the generic constraints are used.

• If the WESTYL is referenced (directly or via the template) and the WESTYL is set to Use Generic, the generic constraints are used.