Maybe you could use a frame?
#!/usr/bin/perl -w
use strict;
use Tk;
use Tk::Canvas;
my $width = 750;
my $height = 750;
my $x_max = $width;
my $y_max = $height;
my $x_min = 5;
my $y_min = 5;
my $top = MainWindow->new();
my $frame = $top->Frame();
my $can = $top->Canvas( -width => $width/2, -height=> $height );
sub clear{ $can->delete( 'all' ); }
my $x = 0;
my $y = 0;
my $n = 0;
my $start_x = 0;
my $start_y = 0;
$can->create ( 'line', $x_min, $y_min, $x_max, $y_max );
$can->create ( 'line', $x_min, $y_max, $x_max, $y_min );
$can->packAdjust( -side => 'left', -fill => 'both', -delay => 1 );
$frame->pack(
-side => 'left',
-fill => 'y',
-expand => 'y',
-anchor => 'w' );
my $can2 = $top->Canvas( -width => $width/2, -height=> $height );
$can2->packAdjust( -side => 'right', -fill => 'both', -delay => 1 );
$can2->create ( 'line', $x_min, $y_min, $x_max, $y_max );
$can2->create ( 'line', $x_min, $y_max, $x_max, $y_min );
MainLoop;
| Plankton: 1% Evil, 99% Hot Gas. |
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