August 2006
Intermediate to advanced
1018 pages
34h 13m
English
Content preview from JavaScript: The Definitive Guide, 5th Edition
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Name
CanvasGradient: a color gradient for use in a canvas — Firefox 1.5, Safari 1.3, Opera 9: Object → CanvasGradient
Methods
-
addColorStop( ) Specifies a color and position for the gradient.
Description
A CanvasGradient object represents a color gradient that may be assigned to
both the strokeStyle and fillStyle properties of a
CanvasRenderingContext2D object. The createLinearGradient( ) and createRadialGradient( ) methods of
CanvasRenderingContext2D both return CanvasGradient objects.
Once you have created a CanvasGradient object, use addColorStop( ) to specify what colors
should appear at what positions within the gradient. Between the
positions you specify, colors are interpolated to create a smooth
gradient or fade. Transparent black stops are created implicitly at
the start and end points of the gradient.
See Also
CanvasRenderingContext2D.createLinearGradient(
)
|
CanvasRenderingContext2D.createRadialGradient(
)
|
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