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#!/usr/bin/perl
package Plain::Point3D;
use strict;
use warnings;
use base 'Plain::Point';
sub new {
my ( $class, %params ) = @_;
my $self = $class->SUPER::new( %params );
$self->{z} = $params{z};
return $self;
}
sub z {
my ( $self, @args ) = @_;
if ( @args ) {
$self->{z} = $args[0];
}
return $self->{z};
}
sub clear {
my $self = shift;
$self->SUPER::clear();
$self->{z} = 0;
}
__PACKAGE__;
__END__
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