1Barcode::EAN8(3) User Contributed Perl Documentation Barcode::EAN8(3)
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6 GD::Barcode::EAN8 - Create EAN8(JAN8) barcode image with GD
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9 ex. CGI
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11 use GD::Barcode::EAN8;
12 binmode(STDOUT);
13 print "Content-Type: image/png\n\n";
14 print GD::Barcode::EAN8->new('1234567')->plot->png;
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16 with Error Check
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18 my $oGdBar = GD::Barcode::EAN8->new('123456789');
19 die $GD::Barcode::EAN8::errStr unless($oGdBar); #Invalid Length
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22 GD::Barcode::EAN8 is a subclass of GD::Barcode and allows you to create
23 EAN8(JAN8) barcode image with GD. This module based on "Generate
24 Barcode Ver 1.02 By Shisei Hanai 97/08/22".
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26 new
27 $oGdBar = GD::Barcode::EAN8->new($sTxt);
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29 Constructor. Creates a GD::Barcode::EAN8 object for $sTxt. $sTxt has
30 7 or 8 numeric characters([0-9]). If $sTxt has 12 characters, this
31 module calacurates CD for you.
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33 plot()
34 $oGd = $oGdBar->plot([Height => $iHeight, NoText => 0 | 1]);
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36 creates GD object with barcode image for the $sTxt specified at new
37 method. $iHeight is height of the image. If NoText is 1, the image has
38 no text image of $sTxt.
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40 ex.
41 my $oGdB = GD::Barcode::EAN8->new('1234567');
42 my $oGD = $oGdB->plot(NoText=>1, Height => 20);
43 # $sGD is a GD image with Height=>20 pixels, with no text.
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45 barcode()
46 $sPtn = $oGdBar->barcode();
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48 returns a barcode pattern in string with '1', 'G' and '0'. '1' means
49 black, 'G' also means black but little bit long, '0' means white.
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51 ex.
52 my $oGdB = GD::Barcode::EAN8->new('1234567');
53 my $sPtn = $oGdB->barcode();
54 # $sPtn = '';
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56 $errStr
57 $GD::Barcode::EAN8::errStr
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59 has error message.
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61 $text
62 $oGdBar->{$text}
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64 has barcode text based on $sTxt specified in new method.
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67 Kawai Takanori GCD00051@nifty.ne.jp
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70 The GD::Barocde::EAN8 module is Copyright (c) 2000 Kawai Takanori.
71 Japan. All rights reserved.
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73 You may distribute under the terms of either the GNU General Public
74 License or the Artistic License, as specified in the Perl README file.
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77 GD::Barcode
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81perl v5.28.0 2003-05-29 Barcode::EAN8(3)