Vector graphics, such as those created
in Adobe Illustrator, are made up of lines
and curves defined by mathematical
objects called
. For example, a
bicycle tire in a vector graphic is made
up of a mathematical definition of a cir-
cle filled with a specific color and set at
a specific location. When you move,
resize, or change the color of the tire,
the program changes the mathematical
definition of the shape or location of the
tire, or the tire’s color.
Vector-based programs are best for type
(especially small type) and drawings
that require crisp, clear lines regardless
of the size to which they are scaled.
Graphics created in vector-based pro-
grams such as Illustrator always appear
at the maximum resolution of the moni-
tor or printer on which they are output—
they are resolution independent.
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