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    ImagickDraw::affine

    (PECL imagick 2, PECL imagick 3)

    ImagickDraw::affine — Adjusts the current affine transformation matrix

    Beschreibung

    public ImagickDraw::affine(array $affine): bool
    Warnung

    Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Parameter zur Verfügung.

    Adjusts the current affine transformation matrix with the specified affine transformation matrix.

    Parameter-Liste

    affine

    Affine matrix parameters

    Rückgabewerte

    Es wird kein Wert zurückgegeben.

    Beispiele

    Beispiel #1 ImagickDraw::affine() example

    <?php
    function affine($strokeColor, $fillColor, $backgroundColor) {

    $draw = new \ImagickDraw();

    $draw->setStrokeWidth(1);
    $draw->setStrokeOpacity(1);
    $draw->setStrokeColor($strokeColor);
    $draw->setFillColor($fillColor);

    $draw->setStrokeWidth(2);

    $PI = 3.141592653589794;
    $angle = 60 * $PI / 360;

    //Scale the drawing co-ordinates.
    $affineScale = array("sx" => 1.75, "sy" => 1.75, "rx" => 0, "ry" => 0, "tx" => 0, "ty" => 0);

    //Shear the drawing co-ordinates.
    $affineShear = array("sx" => 1, "sy" => 1, "rx" => sin($angle), "ry" => -sin($angle), "tx" => 0, "ty" => 0);

    //Rotate the drawing co-ordinates. The shear affine matrix
    //produces incorrectly scaled drawings.
    $affineRotate = array("sx" => cos($angle), "sy" => cos($angle), "rx" => sin($angle), "ry" => -sin($angle), "tx" => 0, "ty" => 0,);

    //Translate (offset) the drawing
    $affineTranslate = array("sx" => 1, "sy" => 1, "rx" => 0, "ry" => 0, "tx" => 30, "ty" => 30);

    //The identiy affine matrix
    $affineIdentity = array("sx" => 1, "sy" => 1, "rx" => 0, "ry" => 0, "tx" => 0, "ty" => 0);

    $examples = [$affineScale, $affineShear, $affineRotate, $affineTranslate, $affineIdentity,];

    $count = 0;

    foreach (    $examples as $example) {
    $draw->push();
    $draw->translate(($count % 2) * 250, intval($count / 2) * 250);
    $draw->translate(100, 100);
    $draw->affine($example);
    $draw->rectangle(-50, -50, 50, 50);
    $draw->pop();
    $count++;
    }

    //Create an image object which the draw commands can be rendered into
    $image = new \Imagick();
    $image->newImage(500, 750, $backgroundColor);
    $image->setImageFormat("png");

    //Render the draw commands in the ImagickDraw object
    //into the image.
    $image->drawImage($draw);

    //Send the image to the browser
    header("Content-Type: image/png");
    echo     $image->getImageBlob();
    }

    ?>

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