Graphics Reference
In-Depth Information
LEGIBILITY FACTORS
Type in motion has the same legibility factors as static type. The
characteristics of individual letters must have integrity so that readers
can recognize their shapes. Typeface and size, case, letterspacing,
and color all contribute to the ease and speed with which text is read.
However, there are some additional guidelines for creating legible
typography in motion.
Length and
grouping.
Because the designer sets the pace of
linear animations, viewers cannot go back and reread text. In general,
animating short sentences or phrases is better than animating long ones
because the viewer can read the words on screen without getting tired.
To aid in creating clear messages, consider what words or ideas belong
together (thought-unit typography), and assign similar visual attributes
and behaviors to them. This will help the viewer make connections
and remember key text. Grouping words in a limited number of spatial
zones on the screen helps focus a viewer's attention (Fig.
9-30
). For
example, if a pattern is established that repeatedly places text in the
center of the screen, viewers will expect to see additional text there
and will be able to focus on
how
an element is moving rather than
where
an element is moving, providing more clarity.
9-28
In a wipe, one image replaces another in a
transition from left to right.
9-29
In this example, a letter
A
morphs into a letter
B
.
9-30
This sequence
accompanies a news
story about
Voyager 1
and
Voyager 2
with units
of typography designed
to bring emphasis and
clarity to the spoken
voiceover. (Designer:
Joshua Howard)
