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川合 孝典

NAME

GD::Barcode::ITF - Create ITF(Interleaved2of5) barcode image with GD

SYNOPSIS

ex. CGI

  use GD::Barcode::ITF;
  binmode(STDOUT);
  print "Content-Type: image/png\n\n";
  print GD::Barcode::ITF->new('1234567890')->plot->png;

with Error Check

  my $oGdBar = GD::Barcode::ITF->new('A12345678');
  die $GD::Barcode::ITF::errStr unless($oGdBar);        #Invalid Characters
  $oGdBar->plot->png;

DESCRIPTION

GD::Barcode::ITF is a subclass of GD::Barcode and allows you to create ITF barcode image with GD.

new

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

Constructor. Creates a GD::Barcode::ITF object for $sTxt. $sTxt has numeric characters([0-9]).

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::ITF->new('12345678');
  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' and '0'. '1' means black, '0' means white.

 ex.
  my $oGdB = GD::Barcode::ITF->new('12345678');
  my $sPtn = $oGdB->barcode();

$errStr

$GD::Barcode::ITF::errStr

has error message.

$text

$oGdBar->{$text}

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

AUTHOR

Kawai Takanori GCD00051@nifty.ne.jp

COPYRIGHT

The GD::Barocde::ITF 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