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    ImagickDraw::affine

    (PECL imagick 2, PECL imagick 3)

    ImagickDraw::affine — Ajusta la matriz de transformación afín actual

    Descripción

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

    Esta función no está documentada actualmente, solamente se encuentra disponible la lista de parámetros.

    Ajusta la matriz de transformación afín actual con la matriz de transformación afín especificada.

    Parámetros

    affine

    Los parámetros de la matriz afín

    Valores devueltos

    No devuelve ningún valor.

    Ejemplos

    Ejemplo #1 Ejemplo de ImagickDraw::affine()

    <?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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