ImagickDraw::setFillOpacity

(PECL imagick 2.0.0)

ImagickDraw::setFillOpacity — Sets the opacity to use when drawing using the fill color or fill texture

说明

bool ImagickDraw::setFillOpacity ( float $fillOpacity )

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

fillOpacity: the fill opacity

返回值

没有返回值。

范例

Example #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 ();
}

 ?>

用户评论:

[#1] Michael Voek [2015-08-08 12:55:56]

When fill color is changed, this is reset to 1.0 or to defined alpha with #aaxxx color format, where aa is alpha.