PHP | ImagickDraw setClipUnits() Function

<?php

// Create a new ImagickDraw object
$draw = new ImagickDraw();
   
// Set clipUnits
$draw->setClipUnits(imagick::RESOLUTION_PIXELSPERCENTIMETER);

// Get clipUnits
echo $draw->getClipUnits();
?>

<?php
    
// Create a new imagick object
$imagick = new Imagick();
    
// Create a image on imagick object
$imagick->newImage(500, 250, 'green');
    
// Create a new ImagickDraw object
$draw = new ImagickDraw();
    
$draw->setClipUnits(imagick::RESOLUTION_PIXELSPERINCH);
  
$draw->setFontSize(24);
  
$draw->annotation(160, 125, 
                  'The clipUnits is '
                  . $draw->getClipUnits() . '.');
    
// Render the draw commands
$imagick->drawImage($draw);
    
// Show the output
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>