man GD::Barcode::ITF (3): 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 [email protected]

COPYRIGHT

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