The Gmagick::shearimage() function is an inbuilt function in PHP which is used to slide one edge of an image along the X or Y axis to create a parallelogram. The X-direction shear slides an edge along the X-axis, while a Y direction shear slides an edge along the Y-axis. The shear angle is used to set shear of the image.
Syntax:
Gmagick Gmagick::shearimage( $color, $xShear, $yShear )
Parameters: This function accepts three parameters as mentioned above and described below:
- $color: This parameter is used to set the background color.
- $xShear: This parameter is used to set degrees to x-shear of the image.
- $yShear: This parameter is used to set degrees to y-shear of the image.
Return Value: This function returns the Gmagick object on success.
Errors/Exceptions: This function throws GmagickException on error.
Below programs illustrates the Gmagick::shearimage() function in PHP:
Program 1:
Input Image:
php
<?php // Create a Gmagick object $gmagick = new Gmagick( // shear the image. $gmagick->shearimage('blue', 25, 50); header('Content-type: image/png'); // Output the image echo $gmagick; ?> |
Output:
Program 2:
php
<?php // Create a GmagickDraw object $draw = new GmagickDraw(); // Create GmagickPixel object $strokeColor = new GmagickPixel('Red'); $fillColor = new GmagickPixel('Green'); // Set the color, opacity of image $draw->setStrokeOpacity(1); $draw->setStrokeColor('Red'); $draw->setFillColor('Green'); // Set the width and height of image $draw->setStrokeWidth(7); $draw->setFontSize(72); // Function to draw circle $draw->circle(250, 250, 100, 150); $gmagick = new Gmagick(); $gmagick->newImage(500, 500, 'White'); $gmagick->setImageFormat("png"); $gmagick->drawImage($draw); // Shear the image$gmagick->shearimage('yellow', 20, 40); // Display the output image header("Content-Type: image/png"); echo $gmagick->getImageBlob(); ?> |
Output:
