fegaussianblur

<fegaussianblur>

<feGaussianBlur>SVG过滤器原语由在规定的数额模糊输入图像stdDeviation，它定义了钟形曲线。

用法上下文

分类	过滤基元
允许的内容	以任意顺序包含以下任意数量的元素：<animate>，<set>

属性

全局属性

Core attributes

Presentation attributes

Filter primitive attributes

class

style

具体属性

in

stdDeviation

edgeMode

DOM接口

这个元素实现了SVGFEGaussianBlurElement接口。

例

Simple example

SVG

<svg width="230" height="120"
 xmlns="http://www.w3.org/2000/svg"
 xmlns:xlink="http://www.w3.org/1999/xlink">

  <filter id="blurMe">
    <feGaussianBlur in="SourceGraphic" stdDeviation="5" />
  </filter>

  <circle cx="60"  cy="60" r="50" fill="green" />

  <circle cx="170" cy="60" r="50" fill="green"
          filter="url(#blurMe)" />
</svg>

结果

Screenshot	Live sample

后方阴影例子

SVG

<svg width="120" height="120"
 xmlns="http://www.w3.org/2000/svg"
 xmlns:xlink="http://www.w3.org/1999/xlink">

  <filter id="dropShadow">
    <feGaussianBlur in="SourceAlpha" stdDeviation="3" />
    <feOffset dx="2" dy="4" />
    <feMerge>
        <feMergeNode />
        <feMergeNode in="SourceGraphic" />
    </feMerge>
  </filter>

  <circle cx="60"  cy="60" r="50" fill="green"
          filter="url(#dropShadow)" />
</svg>

结果

Screenshot	Live sample

产品规格

Specification	Status	Comment
Filter Effects Module Level 1The definition of '<feGaussianBlur>' in that specification.	Working Draft	Added edgeMode attribute
Scalable Vector Graphics (SVG) 1.1 (Second Edition)The definition of '<feGaussianBlur>' in that specification.	Recommendation	Initial definition

浏览器兼容性

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	?	(Yes)	4.0 (2.0)	?	9.0	9.1.1

Feature	Android	Edge	Firefox Mobile (Gecko)	IE Phone	Opera Mobile	Safari Mobile
Basic support	?	(Yes)	?	?	?	?