ImagickDraw::setFillAlpha()

(PECL imagick 2.0.0)

Sets the opacity to use when drawing using the fill color or fill texture

说明

ImagickDraw::setFillAlpha(float $opacity): bool

Warning

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();
}
?>

setFillAlpha is deprecated use the replacement: setFillOpacity