SVG FEDropShadow.stdDeviationY属性用法及代码示例

SVG FEDropShadow.stdDeviationY属性返回与FEDisplacementMap.stdDeviationY元素的stdDeviationY组件相对应的SVGAnimatedNumber对象。

用法:

var a = FEDropShadow.stdDeviationY

返回值：此属性返回与FEDisplacementMap.stdDeviationY元素的stdDeviationY组件相对应的SVGAnimatedNumber对象。

范例1：

HTML

<!DOCTYPE html>  
<html>  
  
<body>  
    <svg width="200" height="200">  
        <defs>  
            <filter id="drop_shadow"
                filterUnits="objectBoundingBox"
                x="-50%" y="-60%" width="250%"
                height="250%">  
  
                <feDropShadow in="SourceGraphic"
                    dx="1" dy="1" stdDeviation="30"
                    flood-color="darkgreen" id="gfg"/>  
            </filter>  
        </defs>  
  
        <rect x="40" y="40" width="100" height="100"
            style="stroke:#000000;  
                fill:lightgreen;  
                filter:url(#drop_shadow);" />  
  
        <g fill="#FFFFFF" stroke="black"
            font-size="10" font-family="Verdana"/>  
            <text x="50" y="90">GeeksForGeeks</text>  
  
        <script type="text/javascript"> 
            var g = document.getElementById("gfg"); 
            console.log(g.stdDeviationY) 
            console.log("stdDeviationY value is:" 
                        ,g.stdDeviationY.baseVal) 
        </script> 
    </svg>  
</body>  
  
</html>

输出：

范例2：

HTML

<!DOCTYPE html>  
<html>  
  
<body>  
    <svg width="200" height="200">  
        <defs>  
            <filter id="blur"
                filterUnits="objectBoundingBox"
                x="-10%" y="-10%" width="300%"
                height="300%">  
  
                <feDropShadow in="StrokePaint"
                    dx="1" dy="1" stdDeviation="30"
                    flood-color="darkgreen" id="gfg"/>  
            </filter>  
        </defs> 
  
        <circle cx="110" cy="60" r="55"
            stroke="darkgreen" stroke-width="3"
            fill="Lightgreen"
            style="stroke:filter:url(#blur);" />  
  
        <g fill="#FFFFFF" stroke="Green"
            font-size="10" c font-family="Verdana"/>  
            <text x="60" y="62">GeeksForGeeks</text>  
  
        <script type="text/javascript"> 
            var g = document.getElementById("gfg"); 
            console.log(g.stdDeviationY) 
            console.log("stdDeviationY value is:" 
                           ,g.stdDeviationY.baseVal) 
        </script> 
    </svg>  
</body>  
  
</html>

输出：

支持的浏览器：

谷歌浏览器
Edge
Firefox
Safari
Opera

参考：https://developer.mozilla.org/en-US/docs/Web/API/SVGFEDropShadowElement

相关用法

注：本文由纯净天空筛选整理自taran910大神的英文原创作品 SVG FEDropShadow.stdDeviationY Property。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。