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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: feGaussianBlur
+slug: Web/SVG/Element/feGaussianBlur
+tags:
+ - SVG
+ - SVG滤镜
+ - 元素
+ - 需要兼容性表
+translation_of: Web/SVG/Element/feGaussianBlur
+---
+<div>{{SVGRef}}</div>
+
+<p>该滤镜对输入图像进行高斯模糊,属性{{ SVGAttr("stdDeviation") }}中指定的数量定义了钟形。</p>
+
+<h2 id="用法">用法</h2>
+
+<p>{{svginfo}}</p>
+
+<h2 id="示例">示例</h2>
+
+<h3 id="简单示例">简单示例</h3>
+
+<pre class="brush: html">&lt;svg width="230" height="120"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:xlink="http://www.w3.org/1999/xlink"&gt;
+
+ &lt;filter id="blurMe"&gt;
+ &lt;feGaussianBlur in="SourceGraphic" stdDeviation="5" /&gt;
+ &lt;/filter&gt;
+
+ &lt;circle cx="60" cy="60" r="50" fill="green" /&gt;
+
+ &lt;circle cx="170" cy="60" r="50" fill="green"
+ filter="url(#blurMe)" /&gt;
+&lt;/svg&gt;</pre>
+
+<p>该示例的结果如下所示:</p>
+
+<p>{{EmbedLiveSample("Simple_example",232,124,"/files/4227/feGaussianBlur.png")}}</p>
+
+<h3 id="投影示例">投影示例</h3>
+
+<pre class="brush: html">&lt;svg width="120" height="120"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:xlink="http://www.w3.org/1999/xlink"&gt;
+
+ &lt;filter id="dropShadow"&gt;
+ &lt;feGaussianBlur in="SourceAlpha" stdDeviation="3" /&gt;
+ &lt;feOffset dx="2" dy="4" /&gt;
+ &lt;feMerge&gt;
+ &lt;feMergeNode /&gt;
+ &lt;feMergeNode in="SourceGraphic" /&gt;
+ &lt;/feMerge&gt;
+ &lt;/filter&gt;
+
+ &lt;circle cx="60" cy="60" r="50" fill="green"
+ filter="url(#dropShadow)" /&gt;
+&lt;/svg&gt;</pre>
+
+<p>该示例的结果如下所示:</p>
+
+<p>{{EmbedLiveSample("Drop_shadow_example",125,124,"/files/4229/feGaussianBlur-dropshadow.png")}}</p>
+
+<h2 id="属性">属性</h2>
+
+<h3 id="全局属性">全局属性</h3>
+
+<ul>
+ <li><a href="/en/SVG/Attribute#Core" title="en/SVG/Attribute#Core">核心属性</a> »</li>
+ <li><a href="/en/SVG/Attribute#Presentation" title="en/SVG/Attribute#Presentation">外观属性</a> »</li>
+ <li><a href="/en/SVG/Attribute#Filter" title="en/SVG/Attribute#Filter">滤镜属性</a> »</li>
+ <li>{{ SVGAttr("class") }}</li>
+ <li>{{ SVGAttr("style") }}</li>
+</ul>
+
+<h3 id="专有属性">专有属性</h3>
+
+<ul>
+ <li>{{ SVGAttr("in") }}</li>
+ <li>{{ SVGAttr("stdDeviation") }}</li>
+</ul>
+
+<h2 id="DOM_接口">DOM 接口</h2>
+
+<p>该元素实现了<code><a href="/en/DOM/SVGFEGaussianBlurElement" title="en/DOM/SVGFEGaussianBlurElement">SVGFEGaussianBlurElement</a></code>接口。</p>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li>{{ SVGElement("filter") }}</li>
+ <li>{{ SVGElement("feBlend") }}</li>
+ <li>{{ SVGElement("feColorMatrix") }}</li>
+ <li>{{ SVGElement("feComponentTransfer") }}</li>
+ <li>{{ SVGElement("feComposite") }}</li>
+ <li>{{ SVGElement("feConvolveMatrix") }}</li>
+ <li>{{ SVGElement("feDiffuseLighting") }}</li>
+ <li>{{ SVGElement("feDisplacementMap") }}</li>
+ <li>{{ SVGElement("feFlood") }}</li>
+ <li>{{ SVGElement("feImage") }}</li>
+ <li>{{ SVGElement("feMerge") }}</li>
+ <li>{{ SVGElement("feMorphology") }}</li>
+ <li>{{ SVGElement("feOffset") }}</li>
+ <li>{{ SVGElement("feSpecularLighting") }}</li>
+ <li>{{ SVGElement("feTile") }}</li>
+ <li>{{ SVGElement("feTurbulence") }}</li>
+ <li><a href="/en-US/docs/SVG/Tutorial/Filter_effects" title="en/SVG/Tutorial/Filter_effects">SVG教程:滤镜效果</a></li>
+</ul>