SVG SpecularLighting.specularExponent属性用法及代码示例

SVG SpecularLighting.specularExponent属性返回与SpecularLighting.specularExponent元素的specularExponent组件相对应的SVGAnimatedNumber对象。

用法:

var a = FESpecularLighting.specularExponent

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

范例1：

<!DOCTYPE html>  
<html>  
  
<body>  
    <svg height="200" width="200"
        viewBox="0 0 220 220">  
          
        <filter id="filter">  
  
            <feSpecularLighting in="BackgroundImage"
                specularConstant="0.8" surfaceScale="1"
                specularExponent="20" kernelUnitLength="1"
                lighting-color="red" id="gfg">  
                  
                <fePointLight x="100" y="100" z="220" />  
            </feSpecularLighting>  
  
            <feComposite in="SourceGraphic" in2="specOut"
                operator="arithmetic" k1="0" k2="1"
                k3="1" k4="0" />  
        </filter>  
  
        <rect x="60" y="60" width="150" height="150"
            style="stroke:#000000; fill:lightgreen;  
                filter:url(#filter);" />  
  
        <script type="text/javascript"> 
                var g = document.getElementById("gfg"); 
                console.log(g.specularExponent) 
                console.log("specularExponent value is:", 
                    g.specularExponent.baseVal) 
        </script> 
    </svg>  
</body>  
  
</html>

输出：

范例2：

<!DOCTYPE html>  
<html>  
  
<body>  
    <svg height="200" width="200">  
        <filter id="filter">  
  
            <feSpecularLighting specularExponent="5"
                lighting-color="gold" result="light"
                surfaceScale="5" in="SourceGraphic"
                specularConstant="1.3" id="gfg">  
                  
                <fePointLight x="100" y="100" z="100" />  
            </feSpecularLighting>  
  
            <feComposite in="SourceGraphic"
                in2="specOut" operator="arithmetic"
                k1="1" k2="0" k3="1" k4="0" />  
        </filter>  
  
        <rect x="1" y="1" width="200" height="200"
            style="stroke:#000000; fill:green;  
            filter:url(#filter);" />  
  
        <rect x="50" y="50" width="100" height="100"
            style="stroke:#000000; fill:green;  
            filter:url(#filter);" />  
  
        <g fill="#FFFFFF" stroke="black" font-size="10"
            font-family="Verdana"/>  
              
            <text x="60" y="100">GeeksForGeeks</text> 
  
        <script type="text/javascript"> 
            var g = document.getElementById("gfg"); 
            console.log(g.specularExponent) 
            console.log("specularExponent value is:", 
               g.specularExponent.baseVal) 
        </script> 
    </svg>  
</body>  
  
</html>

输出：

范例3：

<!DOCTYPE html>  
<html>  
  
<body>  
    <svg height="200" width="200"
        viewBox="0 0 220 220">  
          
        <filter id="filter">  
            <feSpecularLighting specularExponent="2"
                lighting-color="shadow" result="light" 
                surfaceScale="6" in="BackgroundImage" 
                specularConstant="5" id="gfg">  
                  
                <fePointLight x="200" y="200" z="100" />  
            </feSpecularLighting>  
  
            <feComposite in="SourceGraphic"
                in2="specOut" operator="arithmetic"
                k1="0" k2="1" k3="1" k4="0" />  
        </filter>  
  
        <rect x="40" y="40" width="200" height="200"
            style="stroke:black; fill:green;  
            filter:url(#filter);" />  
  
        <circle cx="130" cy="130" r="50" style=  
            "fill:black; filter:url(#filter)" />  
  
        <script type="text/javascript"> 
                var g = document.getElementById("gfg"); 
                console.log(g.specularExponent) 
                console.log("specularExponent value is:" 
               , g.specularExponent.baseVal) 
        </script> 
    </svg>  
</body>  
  
</html>

输出：

支持的浏览器：

谷歌浏览器
Edge
Firefox
Safari
Opera
IE浏览器

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 SpecularLighting.specularExponent 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。