- PHP 手册
- 函数参考
- 图像生成和处理
- ImageMagick
- ImagickDraw
ImagickDraw::setFillOpacity
(PECL imagick 2, PECL imagick 3)
ImagickDraw::setFillOpacity — Sets the opacity to use when drawing using the fill color or fill texture
说明
public ImagickDraw::setFillOpacity(float$fillOpacity): bool
警告本函数还未编写文档，仅有参数列表。
Sets the opacity to use when drawing using the fill color or fill texture. Fully opaque is 1.0.
参数
-
fillOpacity -
the fill opacity
返回值
没有返回值。
范例
示例 #1 ImagickDraw::setFillOpacity()
<?php
function setFillOpacity($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeOpacity(1);
$draw->setStrokeWidth(2);
$draw->rectangle(100, 200, 200, 300);
$draw->setFillOpacity(0.4);
$draw->rectangle(300, 200, 400, 300);
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
User Contributed Notes 1 note
up down 1 Michael Voek ¶6 years ago
When fill color is changed, this is reset to 1.0 or to defined alpha with #aaxxx color format, where aa is alpha.
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官方地址：https://www.php.net/manual/en/imagickdraw.setfillopacity.php