ImagickDraw::setStrokeAlpha()

(PECL imagick 2.0.0)

Specifies the opacity of stroked object outlines

说明

ImagickDraw::setStrokeAlpha(float $opacity): bool

Warning
本函数还未编写文档，仅有参数列表。

Specifies the opacity of stroked object outlines.

参数

$opacity: opacity

返回值

没有返回值。

范例

Example #1 ImagickDraw::setStrokeAlpha()

<?php
function setStrokeAlpha($strokeColor, $fillColor, $backgroundColor) {
    $draw = new \ImagickDraw();
    $draw->setStrokeColor($strokeColor);
    $draw->setFillColor($fillColor);
    $draw->setStrokeWidth(4);
    $draw->line(100, 100, 400, 145);
    $draw->rectangle(100, 200, 225, 350);
    $draw->setStrokeOpacity(0.1);
    $draw->line(100, 120, 400, 165);
    $draw->rectangle(275, 200, 400, 350);
    $image = new \Imagick();
    $image->newImage(500, 400, $backgroundColor);
    $image->setImageFormat("png");
    $image->drawImage($draw);
    header("Content-Type: image/png");
    echo $image->getImageBlob();
}
?>

Must be set after setStrokeColor().
Values between 0 (invisible) and 1.

ImagickDraw::setStrokeAlpha method is deprecated and it's use should be avoided
not sure since which version this became deprecated.