Barnsley fern: Difference between revisions

=={{header|Perl}}==

<lang perl>use Imager;

my $w = 640;

my $h = 640;

my $img = Imager->new(xsize => $w, ysize => $h, channels => 3);

my $green = Imager::Color->new('#00FF00');

my ($x, $y) = (0, 0);

foreach (1 .. 1e5) {

my $r = rand(100);

($x, $y) = do {

if ($r <= 1) { ( 0.00 * $x - 0.00 * $y, 0.00 * $x + 0.16 * $y + 0.00) }

elsif ($r <= 8) { ( 0.20 * $x - 0.26 * $y, 0.23 * $x + 0.22 * $y + 1.60) }

elsif ($r <= 15) { (-0.15 * $x + 0.28 * $y, 0.26 * $x + 0.24 * $y + 0.44) }

else { ( 0.85 * $x + 0.04 * $y, -0.04 * $x + 0.85 * $y + 1.60) }

};

$img->setpixel(x => $w / 2 + $x * 60, y => $y * 60, color => $green);

}

$img->flip(dir => 'v');

$img->write(file => 'barnsleyFern.png');</lang>