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  • ImagickPixel::setColorValueQuantum()

    (No version information available, might only be in Git)

    Description

    说明

    publicImagickPixel::setColorValueQuantum(int $color, number$value): bool

    Sets the quantum value of a color element of the ImagickPixel.

    Warning

    本函数还未编写文档,仅有参数列表。

    参数

    $color

    Which color element to set e.g.Imagick::COLOR_GREEN.

    $value

    The quantum value to set the color element to. This should be a float if ImageMagick was compiled with HDRI otherwise an int in the range 0 to Imagick::getQuantum().

    返回值

    成功时返回TRUE

    范例

    Example #1 ImagickPixel::setColorValueQuantum()

    <?php
    function setColorValueQuantum() {
        $image = new \Imagick();
        $quantumRange = $image->getQuantumRange();
        $draw = new \ImagickDraw();
        $color = new \ImagickPixel('blue');
        $color->setcolorValueQuantum(\Imagick::COLOR_RED, 128 * $quantumRange['quantumRangeLong'] / 256);
        $draw->setstrokewidth(1.0);
        $draw->setStrokeColor($color);
        $draw->setFillColor($color);
        $draw->rectangle(200, 200, 300, 300);
        $image->newImage(500, 500, "SteelBlue2");
        $image->setImageFormat("png");
        $image->drawImage($draw);
        header("Content-Type: image/png");
        echo $image->getImageBlob();
    }
    ?>