PHP | Imagick affineTransformImage() Function

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The Imagick::affineTransformImage() function is an inbuilt function in PHP which is used to transform an image as dictated by the affine matrix.

Syntax:

bool Imagick::affineTransformImage( $matrix )

Parameters: This function accepts single parameter $matrix which holds the value of affine matrix either based on rotate, sheer, scale, etc, …

Return Value: This function returns True on success and FALSE on failure.

Below program illustrates the Imagick::affineTransformImage() function in PHP:

Program: This program uses Imagick::affineTransformImage() function to transforms an image by affine given affine matrix.

<?php 
  
// Create an Imagick object 
$imagick = new \Imagick( 
'https://zambiatek.com/wp-content/uploads/2023/10/zambiatek-9-23.png'); 
  
// Create an ImagickDraw object 
$imagickDraw = new \ImagickDraw(); 
  
// Set the angle 
$theta = "35"; 
    
// Create affine transformation matrix 
$affineRotate = array ( 
    "sx" => cos($theta), "sy" => cos($theta), 
    "rx" => sin($theta), "ry" => -sin($theta), 
    "tx" => 0, "ty" => 0, 
); 
     
// Use affine() function 
$imagickDraw->affine($affineRotate); 
  
// Set the image format 
$imagick->setImageFormat("png"); 
  
// Use affineImageFormat() function 
$imagick->affineTransformImage($imagickDraw); 
    
header("Content-Type: image/png"); 
  
// Display the output image 
echo $imagick->getImageBlob(); 
       
?> 

Output:

Reference: https://www.php.net/manual/en/imagick.affinetransformimage.php

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