Modificar a coordenas absolutas svg para usarlos en clippath

clippath.php

<?php
$absolute_path = "m 867.66051,733.90902 c 7.58365,-0.58723 13.51927,-6.41546 14.24575,-13.97891 22.85162,-240.14627 25.36563,-451.48674 0,-687.860731 -0.72649,-7.563468 -6.66118,-13.390858 -14.24575,-13.97891 -287.85559,-22.0767539 -550.63525,-26.0815249 -835.319853,0 -7.585418,0.588113 -13.52008,6.41546 -14.246568,13.97891 -22.8516209,240.146271 -25.3665348,451.486731 0,687.860731 0.726498,7.56347 6.662072,13.39258 14.246568,13.97891 287.842933,22.08199 550.635253,26.07801 835.319853,0 z";
function regex_callback($matches) {
    static $count = -1;
    $count++;
    $width = 900;
    $height = 752;
    if($count % 2) {
        return $matches[0] / $height;
    } else {
        return $matches[0] / $width;
    }
}

$relative_path = preg_replace_callback('(\d+(\.\d+)?)', 'regex_callback', $absolute_path);

?>

<svg height="0" width="0" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <clipPath id="example" clipPathUnits="objectBoundingBox">
      <path d="<?php echo $relative_path; ?>"></path>
    </clipPath>
  </defs>
</svg>