5.1.1

Chapter 17 Animated text 698
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Scroll Rate Mult: Use this slider, available when Speed Control is set to Automatic, to multiply
the rate of the scroll. Amounts higher than those available in the slider can be entered in the
value slider (the number eld at the right of the slider).
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Scroll Rate: Use this slider, available when Speed Control is set to Fixed, to set the speed of the
scroll in pixels per second.
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Reduce Flicker: Use this pop-up menu to modify the speed of the scroll to reduce ickering on
interlaced or progressive displays. When Scroll Direction is set to Vertical and Speed Control
is set to Automatic or Custom, the options are None, Progressive, or Interlaced. When Scroll
Direction is set to Horizontal and Speed Control is set to Automatic or Custom, the options are
No or Yes.
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None: Available when Scroll Direction is set to Vertical, this option has no eect on the speed
of the scroll.
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Progressive: Available when Scroll Direction is set to Vertical, this option prevents icker on a
progressive display (such as an LCD television). The Progressive setting is not guaranteed to
prevent icker on an interlaced display (such as a CRT television).
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Interlaced: Available when Scroll Direction is set to Vertical, this option prevents icker on
a progressive display (such as an LCD television) or on an interlaced display (such as a CRT
television).
Note: Because the minimum speed to prevent icker on an interlaced display is 2 pixels per
frame, and the minimum speed to prevent icker on a progressive display is 1 pixel per frame,
the Interlaced option may result in faster scroll rates.
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No: Available when Scroll Direction is set to Horizontal, this option does not modify the scroll
speed to reduce ickering on interlaced or progressive displays.
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Yes: Available when Scroll Direction is set to Horizontal, this option modies the speed of the
scroll to reduce ickering on interlaced or progressive displays.
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Allow Layout Override: Select this checkbox, to permit manual changes to text layout. For
example, when horizontally scrolling imported RTF text, the text is placed in a single line. If the
Allow Layout Override checkbox is selected, the text retains its paragraph form.
Note: This parameter is available only when the Scroll Text behavior is applied to a text object.
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Start O-Screen: Select this checkbox to move the text to an o-Canvas position for the start of
the scroll.
Text Tracking behavior
Use the Text Tracking behavior
The Text Tracking behavior applies a rate of change to the Tracking parameter of the Format
pane (in the Text Inspector). Tracking applies a uniform space between each character of text.
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