Edit Report a Bug

    ImagickDraw::affine

    (PECL imagick 2, PECL imagick 3)

    ImagickDraw::affine — 現在のアフィン変換行列を設定する

    説明

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

    この関数は、 現在のところ詳細な情報はありません。引数のリストのみが 記述されています。

    現在のアフィン変換行列を、指定したものに設定します。

    パラメータ

    affine

    アフィン行列のパラメータ。

    戻り値

    値を返しません。

    例

    例1 ImagickDraw::affine() の例

    <?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();
    }

    ?>

    add a note add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top