ImagickDraw::setFillAlpha
(PECL imagick 2.0.0)
ImagickDraw::setFillAlpha — Sets the opacity to use when drawing using the fill color or fill texture
说明
ImagickDraw::setFillAlpha
( float
$opacity
) : boolWarning
本函数还未编写文档，仅有参数列表。
Sets the opacity to use when drawing using the fill color or fill texture. Fully opaque is 1.0.
参数
-
opacity -
fill alpha
返回值
没有返回值。
范例
Example #1 ImagickDraw::setFillAlpha()
<?php
function setFillAlpha($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->setFillAlpha(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();
}
?>