The ImagickDraw::affine() function is an inbuilt function in PHP which is used to adjust the current affine transformation matrix.
Syntax:
bool ImagickDraw::affine( array $affine )
Parameters: This function accepts a single parameter $affine which holds the array containing the affine matrix parameters.
Return Value: This function returns TRUE on success.
Exceptions: This function throws ImagickException on error.
Below given programs illustrate the ImagickDraw::affine() function in PHP:
Program 1:
<?php // Create a new Imagick object $imagick = new Imagick();
// Create a image on imagick object with // green background $imagick ->newImage(800, 250, 'green' );
// Create a new ImagickDraw object $draw = new ImagickDraw();
// Translate the object $draw ->translate(100, 100);
// Apply the affine() function $draw ->affine( array ( "sx" => 7, "sy" => 1,
"rx" => 9, "ry" => 0,
"tx" => 200, "ty" => 0));
// Draw a rectangle $draw ->rectangle(-50, -50, 50, 50);
// Render the draw commands in the ImagickDraw object $imagick ->drawImage( $draw );
// Show the output $imagick ->setImageFormat( "png" );
header( "Content-Type: image/png" );
echo $imagick ->getImageBlob();
?> |
Output:
Program 2:
<?php //Create a new Imagick object $imagick = new Imagick();
// Create a image on imagick object with // purple background $imagick ->newImage(800, 250, 'purple' );
// Create a new ImagickDraw object $draw = new ImagickDraw();
// Translate the object $draw ->translate(100, 100);
// Apply the affine() function $draw ->affine( array ( "sx" => 2, "sy" => 1,
"rx" => 0, "ry" => 0,
"tx" => 0, "ty" => 0));
// Draw a rectangle $draw ->rectangle(0, -50, 50, 50);
// Draw a rectangle $draw ->rectangle(100, 50, 150, 100);
// Draw a rectangle $draw ->rectangle(200, -10, 250, 90);
// Render the draw commands in the ImagickDraw object $imagick ->drawImage( $draw );
// Show the output $imagick ->setImageFormat( "png" );
header( "Content-Type: image/png" );
echo $imagick ->getImageBlob();
?> |
Output:
Reference: https://www.php.net/manual/en/imagickdraw.affine.php