PHP, Structures and Functions, IMAGICK


<?php



bool public Imagick::affineTransformImage(ImagickDraw $matrix);



?>

$matrix

The affine matrix.

AFFINE TRANSFORATION

In Euclidean geometry, an affine transformation, or an affinity (from the Latin, affinis, "connected with"), is a geometric transformation that preserves lines and parallelism (but not necessarily distances and angles).

This function returns a TRUE on success.

EXERCISE


<?php



// Run several times



$img1 = new Imagick(PATH2IMGW . '/gif/E 01 01.gif');



$tmp1 = 'img/results/E 01 01af561.gif';



$drw1 = new ImagickDraw();



$ang1 = deg2rad(mt_rand(0, 360));



// BEWARE of the following array terms



$affrot1 = [ "sx" => cos($ang1), "sy" => cos($ang1),

                 "rx" => sin($ang1), "ry" => sin($ang1),

                 "tx" => 0, "ty" => 0 ];

                 

$drw1->affine($affrot1);



$img1->affineTransformImage($drw1);



$Data = $img1->getImageBlob();



$img = imagecreatefromstring($Data);



imagegif($img, $tmp1);



echo basename($tmp1); ?>

<br><br>

<img src="<?php echo $tmp1; ?>"

 alt="<?php echo $tmp1; ?>" 

 title="<?php echo $tmp1; ?>">

RESULT

Array
(
    [sx] => -0.98162718344766
    [sy] => -0.98162718344766
    [rx] => -0.19080899537654
    [ry] => 0.19080899537654
    [tx] => 0
    [ty] => 0
)

E 01 01af561.gif

img/results/E 01 01af561.gif apr