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ImagickPixel::__construct

(PECL imagick 2.0.0)

ImagickPixel::__construct — The ImagickPixel constructor

Description

代码语言:javascript
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ImagickPixel::__construct ([ string $color ] )

Warning

This function is currently not documented; only its argument list is available.

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

Parameters

color

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

Return Values

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

Examples

Example #1 ImagickPixel::construct()

代码语言:javascript
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<?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();
}

?>

← ImagickPixel::clear

ImagickPixel::destroy →

代码语言:txt
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 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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