1.::SWF::Gradient(3)   User Contributed Perl Documentation  .::SWF::Gradient(3)
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NAME

6       SWF::Gradient - SWF gradient class
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SYNOPSIS

9               use SWF::Gradient;
10               use SWF::Constants qw(:Gradient);
11               use SWF::Shape;
12               $g = new SWF::Gradient();
13               $g->addEntry(0.0,255,0,0,200);
14               $g->addEntry(0.16,255,255,0,200);
15               $g->addEntry(0.32,0,255,0,200);
16               $g->addEntry(0.5,0,255,255,200);
17               $g->addEntry(0.66,0,50,255,200);
18               $g->addEntry(0.83 ,255,0,255,200);
19               $g->addEntry(1.0,255,0,0,200);
20               # ..make some kind of rainbow..
21               $sh = new SWF::Shape();
22               $fill = $sh->addGradientFill($g,SWFFILL_LINEAR_GRADIENT);
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DESCRIPTION

25       SWF::Gradient is a helper class most useful for filling shapes (i.e.
26       SWF::Shape objects), and also for filtering via SWF::DisplayItem
27       methods using GradientGlowFilter or GradientBevelFilter, both are
28       SWF::Filter objects.
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METHODS

31       new SWF::Gradient()
32           Creates and returns a gradient object. This object is an 'empty'
33           gradient, to be filled with control point entries via up to 15
34           addEntry() method calls.  (For SWF version 7 are only 8 control
35           points possible.)  For gradients used for filters also only 8
36           control points are possible.
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38       addEntry($ratio, $r, $g, $b [, $a])
39           Adds a gradient control point. The ratio parameter is a floating
40           point value for controlling the position of the following RGBA-
41           color value (consiting of red, green, blue and optional alpha
42           parts) in an increasing row between 0.0 and 1.0 .  Adding more than
43           15 entries will be useless and ignored.
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45       setSpreadMode($mode)
46           For version >= 8 only: set a gradient spread mode: one of
47           SWF_GRADIENT_PAD (default), SWF_GRADIENT_REPEAT,
48           SWF_GRADIENT_REFLECT .
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50       setInterpolationMode($mode)
51           For version >= 8 only: set a gradient interpolation mode: one of
52           SWF_GRADIENT_NORMAL (default), SWF_GRADIENT_LINEAR .
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54       setFocalPoint($focalpoint)
55           Makes a focal gradient 'asymetric'. A focalpoint value of -1.0
56           means the focal point is close to the left border, 0.0 is in the
57           center and 1.0 is close to the right border.  Also this feature is
58           available for version >= 8 only.  For best results use the
59           SWFFILL_FOCAL_GRADIENT flag when adding to v4 shapes, i.e. like
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61                   $g = new SWF::Gradient();
62                   $g->setFocalPoint(-0.9);
63                   $g->addEntry(0.000000,0xff,0x00,0x00,0xff);
64                   $g->addEntry(1.000000,0x00,0xff,0x00,0xff);
65                   $shape->useVersion(4);
66                   $shape->addGradientFill($g,SWFFILL_FOCAL_GRADIENT);
67

AUTHOR

69               developers of
70               ming.sourceforge.net
71

SEE ALSO

73       SWF, SWF::Shape, SWF::Fill, SWF::Filter, SWF::Constants
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77perl v5.28.1                      2018-11-12               .::SWF::Gradient(3)
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