| Barcode::EAN8(3) | User Contributed Perl Documentation | Barcode::EAN8(3) |
NAME¶
GD::Barcode::EAN8 - Create EAN8(JAN8) barcode image with GD
SYNOPSIS¶
ex. CGI
use GD::Barcode::EAN8;
binmode(STDOUT);
print "Content-Type: image/png\n\n";
print GD::Barcode::EAN8->new('1234567')->plot->png;
with Error Check
my $oGdBar = GD::Barcode::EAN8->new('123456789');
die $GD::Barcode::EAN8::errStr unless($oGdBar); #Invalid Length
DESCRIPTION¶
GD::Barcode::EAN8 is a subclass of GD::Barcode and allows you to create EAN8(JAN8) barcode image with GD. This module based on "Generate Barcode Ver 1.02 By Shisei Hanai 97/08/22".
new¶
$oGdBar = GD::Barcode::EAN8->new($sTxt);
Constructor. Creates a GD::Barcode::EAN8 object for $sTxt. $sTxt has 7 or 8 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::EAN8->new('1234567');
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::EAN8->new('1234567');
my $sPtn = $oGdB->barcode();
# $sPtn = '';
$errStr¶
$GD::Barcode::EAN8::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::EAN8 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
| 2003-05-29 | perl v5.16.3 |