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ImagickDraw::setStrokeAlpha

(PECL imagick 2.0.0)

ImagickDraw::setStrokeAlphaSpecifies the opacity of stroked object outlines

说明

bool ImagickDraw::setStrokeAlpha ( float $opacity )
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 ();
}

?>

用户评论:

[#1] Thomas [2014-09-19 12:30:30]

Must be set after setStrokeColor().

Values between 0 (invisible) and 1.

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