The Gmagick::rotateimage() function is an inbuilt function in PHP which is used to rotate an image in the specified number of degrees. The background empty triangles filled with the background color.
Syntax:
Gmagick Gmagick::rotateimage ( $color, $degrees )
Parameters: This function accepts two parameters as mentioned above and described below:
- $color: This parameter is used to set the background color pixel.
- $degrees: This parameter is used to set the degree of rotation.
Return Value: This function returns the Gmagick object on success.
Errors/Exceptions: This function throws GmagickException on error.
Below programs illustrates the Gmagick::rotateimage() function in PHP:
Program 1:
Input Image:
<?php // Create a Gmagick object $gmagick = new Gmagick(
// Rotate the image. $gmagick ->rotateimage( 'red' , 35);
header( 'Content-type: image/png' );
// Output the image echo $gmagick ;
?> |
Output:
Program 2:
<?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);
// Create a GmagickDraw object $gmagick = new Gmagick();
// Function to create new image of given size $gmagick ->newImage(500, 500, 'White' );
// Function to set image format $gmagick ->setImageFormat( "png" );
// Function to draw image $gmagick ->drawImage( $draw );
// Rotate the image $gmagick ->rotateimage( 'yellow' , 35);
// Display the output image header( "Content-Type: image/png" );
echo $gmagick ->getImageBlob();
?> |
Output:
Reference: http://php.net/manual/en/gmagick.rotateimage.php