Php/docs/imagickpixel.construct
ImagickPixel::__construct
(PECL imagick 2, PECL imagick 3)
ImagickPixel::__construct — The ImagickPixel constructor
说明
public 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()
<?phpfunction 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();}?>
