Ace::Graphics::GlyphFactory(3pm)

1Ace::Graphics::GlyphFacUtsoerry(C3o)ntributed Perl DocumAecnet:a:tGiroanphics::GlyphFactory(3)
2
3
4

NAME

6       Ace::Graphics::GlyphFactory - Create Ace::Graphics::Glyphs
7

SYNOPSIS

9         use Ace::Graphics::GlyphFactory;
10
11         my $factory = Ace::Graphics::GlyphFactory($glyph_name,@options);
12

DESCRIPTION

14       The Ace::Graphics::GlyphFactory class is used internally by
15       Ace::Graphics::Track and Ace::Graphics::Glyph to hold the options
16       pertaining to a set of related glyphs and creating them on demand.
17       This class is not ordinarily useful to the end-developer.
18

METHODS

20       This section describes the class and object methods for
21       Ace::Graphics::GlyphFactory.
22
23   CONSTRUCTORS
24       There is only one constructor, the new() method.  It is ordinarily
25       called by Ace::Graphics::Track, in the make_factory() subroutine.
26
27       $factory = Ace::Graphics::GlyphFactory->new($glyph_name,@options)
28           The new() method creates a new factory object.  The object will
29           create glyphs of type $glyph_name, and using the options specified
30           in @options.  Generic options are described in
31           Ace::Graphics::Panel, and specific options are described in each of
32           the Ace::Graphics::Glyph::* manual pages.  =back
33
34   OBJECT METHODS
35       Once a track is created, the following methods can be invoked:
36
37       $glyph = $factory->glyph($feature)
38           Given a sequence feature, creates an Ace::Graphics::Glyph object to
39           display it.  The various attributes of the glyph are set from the
40           options provided at factory creation time.
41
42       $option = $factory->option($option_name [,$new_option])
43           Given an option name, returns its value.  If a second argument is
44           provided, sets the option to the new value and returns its previous
45           one.
46
47       $index = $factory->fgcolor
48           Returns the desired foreground color for the glyphs in the form of
49           an GD::Image color index.  This may be the one of the special
50           colors gdBrushed and gdStyled.  This is only useful while the
51           enclosing Ace::Graphics::Panel object is rendering the object.  In
52           other contexts it returns undef.
53
54       $scale = $factory->scale([$scale])
55           Get or set the scale, in pixels/bp, for the glyph.  This is
56           ordinarily set by the Ace::Graphics::Track object just prior to
57           rendering, and called by each glyphs' map_pt() method when
58           performing the rendering.
59
60       $color = $factory->bgcolor([$color])
61           Get or set the background color for the glyphs.
62
63       $color = $factory->fillcolor([$color])
64           Get or set the fill color for the glyphs.
65
66       $font = $factory->font([$font])
67           Get or set the font to use for rendering the glyph.
68
69       $color = $factory->fontcolor
70           Get the color for the font (to set it, use fgcolor()).  This is
71           subtly different from fgcolor() itself, because it will never
72           return a styled color, such as gdBrushed.
73
74       $panel = $factory->panel([$panel])
75           Get or set the panel that contains the GD::Image object used by
76           this factory.
77
78       $index = $factory->translate($color)
79       @rgb = $factory->rgb($index)
80           These are convenience procedures that are passed through to the
81           enclosing Panel object and have the same effect as the like-named
82           methods in that class.  See Ace::Graphics::Panel.
83

BUGS

85       Please report them.
86

AUTHOR

92       Lincoln Stein <lstein@cshl.org>.
93
94       Copyright (c) 2001 Cold Spring Harbor Laboratory
95
96       This library is free software; you can redistribute it and/or modify it
97       under the same terms as Perl itself.  See DISCLAIMER.txt for
98       disclaimers of warranty.
99

POD ERRORS

101       Hey! The above document had some coding errors, which are explained
102       below:
103
104       Around line 191:
105           You forgot a '=back' before '=head2'
106
107
108
109perl v5.30.1                      2020-01-29    Ace::Graphics::GlyphFactory(3)