<?php
set_time_limit(5);
$i = 6; // Количество итераций
$xy = 1500; // Размер стороны картинки
$img = imagecreatetruecolor($xy, $xy);
$black = imagecolorallocate($img, 0, 0, 0);
$white = imagecolorallocate($img, 255, 255, 255);
$cycle = 0;
drawCarpet(0, 0, $xy, $xy, $i);
function drawCarpet($a, $b, $c, $d, $n) {
global $img, $white, $cycle;
$cycle++;
if($n <= 0) return;
$a1 = 2 * $a / 3 + $c / 3;
$c1 = $a / 3 + 2 * $c / 3;
$b1 = 2 * $b / 3 + $d / 3;
$d1 = $b / 3 + 2 * $d / 3;
imagefilledrectangle($img, $a1, $b1, $c1, $d1, $white);
drawCarpet($a, $b, $a1, $b1, $n - 1);
drawCarpet($a1, $b, $c1, $b1, $n - 1);
drawCarpet($c1, $b, $c, $b1, $n - 1);
drawCarpet($a, $b1, $a1, $d1, $n - 1);
drawCarpet($c1, $b1, $c, $d1, $n - 1);
drawCarpet($a, $d1, $a1, $d, $n - 1);
drawCarpet($a1, $d1, $c1, $d, $n - 1);
drawCarpet($c1, $d1, $c, $d, $n - 1);
}
imagefilledrectangle($img, 0, 0, (strlen($cycle) * 9) , 16, $white);
imagestring($img,21,0,0,$cycle,$black);
header('Content-Type: image/png');
imagepng($img);
preferences:
47.43 ms | 402 KiB | 5 Q