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PHP | Gmagick swirlimage() Function

  • Last Updated : 24 Mar, 2021

The Gmagick::swirlimage() function is an inbuilt function in PHP which is used to swirl the pixels about the center of the image. The degree indicates the sweep of the arc to move each pixel.

Gmagick Gmagick::swirlimage( $degrees )

Parameters: This function accepts a single parameter $degrees which defines the tightness of the swirling effect.
Return Value: This function returns the Gmagick object on success.
Errors/Exceptions: This function throws GmagickException on error.
Below programs illustrates the Gmagick::swirlimage() function in PHP:
Program 1: 
Input Image: 



// Create a Gmagick object
$gmagick = new Gmagick(
// Swirl the image.
header('Content-type: image/png');
// Output the image
echo $gmagick;


Program 2: 


// Create a GmagickDraw object
$draw = new GmagickDraw();
// Create GmagickPixel object
$strokeColor = new GmagickPixel('Red');
$fillColor = new GmagickPixel('Green');
// Set the color, opacity of image
// Set the width and height of image
// Function to draw circle 
$draw->circle(250, 250, 100, 150);
$gmagick = new Gmagick();
$gmagick->newImage(500, 500, 'White');
// Swirl the image
// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();



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