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  • ImagickPixel::__construct()

    (PECL imagick 2.0.0)

    The ImagickPixel constructor

    说明

    ImagickPixel::__construct([string $color])
    Warning

    本函数还未编写文档,仅有参数列表。

    Constructs an ImagickPixel object. If a color is specified, the object is constructed and then initialised with that color before being returned.

    参数

    $color

    The optional color string to use as the initial value of this object.

    返回值

    Returns an ImagickPixel object on success, throwing ImagickPixelException on failure.

    范例

    Example #1 ImagickPixel::construct()

    <?php
    function construct() {
        $columns = 4;
        
        $exampleColors = array(
            "rgba(100%, 0%, 0%, 0.5)",
            "hsb(33.3333%, 100%,  75%)", // medium green
            "hsl(120, 255,   191.25)", //medium green
            "graya(50%, 0.5)", //  semi-transparent mid gray
            "LightCoral", "none", //"cmyk(0.9, 0.48, 0.83, 0.50)",
            "#f00", //  #rgb
            "#ff0000", //  #rrggbb
            "#ff0000ff", //  #rrggbbaa
            "#ffff00000000", //  #rrrrggggbbbb
            "#ffff00000000ffff", //  #rrrrggggbbbbaaaa
            "rgb(255, 0, 0)", //  an integer in the range 0—255 for each component
            "rgb(100.0%, 0.0%, 0.0%)", //  a float in the range 0—100% for each component
            "rgb(255, 0, 0)", //  range 0 - 255
            "rgba(255, 0, 0, 1.0)", //  the same, with an explicit alpha value
            "rgb(100%, 0%, 0%)", //  range 0.0% - 100.0%
            "rgba(100%, 0%, 0%, 1.0)", //  the same, with an explicit alpha value
        );
        $draw = new \ImagickDraw();
        $count = 0;
        $black = new \ImagickPixel('rgb(0, 0, 0)');
        foreach ($exampleColors as $exampleColor) {
            $color = new \ImagickPixel($exampleColor);
            $draw->setstrokewidth(1.0);
            $draw->setStrokeColor($black);
            $draw->setFillColor($color);
            $offsetX = ($count % $columns) * 50 + 5;
            $offsetY = intval($count / $columns) * 50 + 5;
            $draw->rectangle(0 + $offsetX, 0 + $offsetY, 40 + $offsetX, 40 + $offsetY);
            $count++;
        }
        $image = new \Imagick();
        $image->newImage(350, 350, "blue");
        $image->setImageFormat("png");
        $image->drawImage($draw);
        header("Content-Type: image/png");
        echo $image->getImageBlob();
    }
    ?>