imagesetpixel

imagesetpixel

Set a single pixel

true **imagesetpixel** GdImage $image int $x int $y int $color

draws a pixel at the specified

coordinate. imagesetpixel

xx-coordinate.

yy-coordinate.

colorgd.identifier.color

return.true.always

Voorbeeld: example

A random drawing that ends with a regular picture.

<?php

$x = 200;
$y = 200;

$gd = imagecreatetruecolor($x, $y);
 
$corners[0] = array('x' => 100, 'y' =>  10);
$corners[1] = array('x' =>   0, 'y' => 190);
$corners[2] = array('x' => 200, 'y' => 190);

$red = imagecolorallocate($gd, 255, 0, 0); 

for ($i = 0; $i < 100000; $i++) {
  imagesetpixel($gd, round($x), round($y), $red);
  $a = rand(0, 2);
  $x = ($x + $corners[$a]['x']) / 2;
  $y = ($y + $corners[$a]['y']) / 2;
}
 
header('Content-Type: image/png');
imagepng($gd);

?>

imagecreatetruecolor``imagecolorallocate``imagecolorat