With width animation, an object’s width changes based on a tag value or the result of an expression. The width of the object is proportional to the value of the expression. For example, if the value of the expression is halfway between its minimum and maximum values, the width of the object will be halfway between its minimum and maximum horizontal change percents.
Width animation is available for all drawing objects except image and panel objects, which only support visibility animation.
Tip: |
You can use the Object Explorer to search for objects in your display that have animation. Open the Highlight Settings box and select the kind of animation you want to highlight. |
Type a tag name or an expression that will evaluate to numeric values at run time. An expression is a mathematical or logical equation that returns a value. It can contain tag names, constants and mathematical, relational, logical, and bitwise operators. A tag name can be used as an expression. When you do this, the minimum and maximum expression values default to the tag's minimum and maximum values.
If you have specified a tag in the Expression box, click this button to use the tag's minimum and maximum values to define the range of values for the expression. If your expression contains more than one tag, the minimum and maximum values for the first tag will be used for the animation.
To use constant numeric values to define a range of values, click this button and specify values for minimum and maximum.
To define the range of values using one tag's value for the minimum and another tag's value for the maximum, click this button and then specify a tag for minimum and another for maximum. Using this option, when the display opens and animation for an object is started, the tags' values are read once to set the minimum and maximum values. The tags are not read again after the display is opened, nor are the minimum and maximum values for the animation changed, even if the tag values change.
The width of the object when it is selected is the base size (100 percent). Click on a handle on the left or right side of the object and drag it to resize the object.
or
Type the width the object is to be when the expression evaluates to its minimum value. This is a percentage of its base size.
Click on a handle on the left or right side of the object and drag it to resize the object.
or
Type the width the object is to be when the expression evaluates to its maximum value. This is a percentage of its base size.
Anchor determines which part of the object remains constant.
Select Left if the left side of the object is to remain constant. As the value of the expression changes, the object grows to or shrinks from the right.
Select Center if the midpoint of the object is to remain constant. As the value of the expression changes, the object widens and narrows equally on either side of its midpoint.
Select Right if the right side of the object is to remain constant. As the value of the expression changes, the object grows to or shrinks from the left.