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:
