The Imagick::rollImage() function is an inbuilt function in PHP which is used to roll an image.
Syntax:
bool Imagick::rollImage( $x, $y )
Parameters: This function accepts two parameters as mentioned above and described below:
- $x: This parameter stores the value of the X offset.
- $y: This parameter stores the value of the Y offset.
Return Value: This function returns True on success.
Original Image:
Below program illustrate Imagick::rollImage() function in PHP:
Program 1:
<?php   // Create an Imagick object  $imagick = new \Imagick(   // Use rollImage function $imagick->rollImage(60, 50);       header("Content-Type: image/jpg");   // Display the image echo $imagick->getImageBlob(); ?> |
Output:
Program 2:
<?php   $string = "Computer Science portal for Geeks!";   // Creating new image of above String // and add color and background $im = new Imagick(); $draw = new ImagickDraw();   // Fill the color in image $draw->setFillColor(new ImagickPixel('green'));   // Set the text font size $draw->setFontSize(50);   $matrix = $im->queryFontMetrics($draw, $string); $draw->annotation(0, 40, $string); $im->newImage($matrix['textWidth'], $matrix['textHeight'],         new ImagickPixel('white'));   // Draw the image         $im->drawImage($draw);   // Roll the Image $im->rollImage(70, 50);   $im->setImageFormat('jpeg');   header("Content-Type: image/jpg");   // Display the output image echo $im->getImageBlob(); ?> |
Output:
