ImagickPixel::__construct
(PECL imagick 2.0.0)
ImagickPixel::__construct — 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();
}
?>
