phpman > perldoc > GD::Barcode::EAN13(3pm)

NAME
    GD::Barcode::EAN13 - Create EAN13(JAN13) barcode image with GD

SYNOPSIS
    *ex. CGI*

      use GD::Barcode::EAN13;
      binmode(STDOUT);
      print "Content-Type: image/png\n\n";
      print GD::Barcode::EAN13->new('123456789012')->plot->png;

    *with Error Check*

      my $oGdBar = GD::Barcode::EAN13->new('123456789');
      die $GD::Barcode::EAN13::errStr unless($oGdBar);      #Invalid Length

DESCRIPTION
    GD::Barcode::EAN13 is a subclass of GD::Barcode and allows you to create EAN13(JAN13) barcode
    image with GD. This module based on "Generate Barcode Ver 1.02 By Shisei Hanai 97/08/22".

  new
    *$oGdBar* = GD::Barcode::EAN13->new(*$sTxt*);

    Constructor. Creates a GD::Barcode::EAN13 object for *$sTxt*. *$sTxt* has 12 or 13 numeric
    characters([0-9]). If *$sTxt* has 12 characters, this module calacurates CD for you.

  plot()
    *$oGd* = $oGdBar->plot([Height => *$iHeight*, NoText => *0 | 1*]);

    creates GD object with barcode image for the *$sTxt* specified at new method. *$iHeight* is
    height of the image. If *NoText* is 1, the image has no text image of *$sTxt*.

     ex.
      my $oGdB = GD::Barcode::EAN13->new('123456789012');
      my $oGD = $oGdB->plot(NoText=>1, Height => 20);
      # $sGD is a GD image with Height=>20 pixels, with no text.

  barcode()
    *$sPtn* = $oGdBar->barcode();

    returns a barcode pattern in string with '1', 'G' and '0'. '1' means black, 'G' also means black
    but little bit long, '0' means white.

     ex.
      my $oGdB = GD::Barcode::EAN13->new('123456789012');
      my $sPtn = $oGdB->barcode();
      # $sPtn = '';

  $errStr
    $GD::Barcode::EAN13::errStr

    has error message.

  $text
    $oGdBar->{$text}

    has barcode text based on *$sTxt* specified in new method.

AUTHOR
    Kawai Takanori GCD00051 AT nifty.jp

COPYRIGHT
    The GD::Barocde::EAN13 module is Copyright (c) 2000 Kawai Takanori. Japan. All rights reserved.

    You may distribute under the terms of either the GNU General Public License or the Artistic
    License, as specified in the Perl README file.

SEE ALSO
    GD::Barcode