SWF::Gradient(3) User Contributed Perl Documentation SWF::Gradient(3)NAME
SWF::Gradient - SWF gradient class
SYNOPSIS
use SWF::Gradient;
use SWF::Constants qw(:Gradient);
use SWF::Shape;
$g = new SWF::Gradient();
$g->addEntry(0.0,255,0,0,200);
$g->addEntry(0.16,255,255,0,200);
$g->addEntry(0.32,0,255,0,200);
$g->addEntry(0.5,0,255,255,200);
$g->addEntry(0.66,0,50,255,200);
$g->addEntry(0.83 ,255,0,255,200);
$g->addEntry(1.0,255,0,0,200);
# ..make some kind of rainbow..
$sh = new SWF::Shape();
$fill = $sh->addGradientFill($g,SWFFILL_LINEAR_GRADIENT);
DESCRIPTION
SWF::Gradient is a helper class most useful for filling shapes (i.e.
SWF::Shape objects), and also for filtering via SWF::DisplayItem
methods using GradientGlowFilter or GradientBevelFilter, both are
SWF::Filter objects.
METHODS
new SWF::Gradient()
Creates and returns a gradient object. This object is an 'empty'
gradient, to be filled with control point entries via up to 15
addEntry() method calls. (For SWF version 7 are only 8 control
points possible.) For gradients used for filters also only 8
control points are possible.
addEntry($ratio, $r, $g, $b [, $a])
Adds a gradient control point. The ratio parameter is a floating
point value for controlling the position of the following RGBA-
color value (consiting of red, green, blue and optional alpha
parts) in an increasing row between 0.0 and 1.0 . Adding more than
15 entries will be useless and ignored.
setSpreadMode($mode)
For version >= 8 only: set a gradient spread mode: one of
SWF_GRADIENT_PAD (default), SWF_GRADIENT_REPEAT,
SWF_GRADIENT_REFLECT .
setInterpolationMode($mode)
For version >= 8 only: set a gradient interpolation mode: one of
SWF_GRADIENT_NORMAL (default), SWF_GRADIENT_LINEAR .
setFocalPoint($focalpoint)
Makes a focal gradient 'asymetric'. A focalpoint value of -1.0
means the focal point is close to the left border, 0.0 is in the
center and 1.0 is close to the right border. Also this feature is
available for version >= 8 only. For best results use the
SWFFILL_FOCAL_GRADIENT flag when adding to v4 shapes, i.e. like
$g = new SWF::Gradient();
$g->setFocalPoint(-0.9);
$g->addEntry(0.000000,0xff,0x00,0x00,0xff);
$g->addEntry(1.000000,0x00,0xff,0x00,0xff);
$shape->useVersion(4);
$shape->addGradientFill($g,SWFFILL_FOCAL_GRADIENT);
AUTHOR
developers of
ming.sourceforge.net
SEE ALSO
SWF, SWF::Shape, SWF::Fill, SWF::Filter, SWF::Constants
perl v5.14.2 2010-10-10 SWF::Gradient(3)
