ImagickPixel::setColorValueQuantum
(PECL imagick 2 >=2.3.0, PECL imagick 3)
ImagickPixel::setColorValueQuantum — Sets the quantum value of a color element of the ImagickPixel
说明
Sets the quantum value of a color element of the ImagickPixel.
警告
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。
示例
示例 #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();
}
?>
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