SVG FESpotLightElement.limitingConeAngle属性用法及代码示例

SVG FESpotLightElement.limitingConeAngle属性返回与FESpotLightElement.limitingConeAngle元素的limitingConeAngle属性相对应的SVGAnimatedNumber对象。

用法:

var a = FESpotLightElement.limitingConeAngle

返回值：此属性返回与FESpotLightElement.limitingConeAngle元素的limitingConeAngle属性相对应的SVGAnimatedNumber对象。

范例1：

<!DOCTYPE html> 
<html> 
  
<body> 
    <svg width="200" height="200"> 
        <defs> 
            <filter id="spotlight"> 
                <feSpecularLighting result="spec3" 
                    in="blur3" specularConstant="1.2" 
                    lighting-color="#FFF"> 
  
                    <feSpotLight x="400" y="400" z="900"
                        limitingConeAngle="9" 
                        specularExponent="10" id="gfg" /> 
                </feSpecularLighting> 
  
                <feComposite in="SourceGraphic" 
                    in2="spotlight" operator="out" 
                    k1="0" k2="1" k3="1" k4="0" /> 
            </filter> 
        </defs> 
  
        <rect x="40" y="40" width="150" 
            height="100" style="stroke:#000000;  
                fill:green;  
                filter:url(#spotlight);"/> 
  
        <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.limitingConeAngle); 
  
            console.log("limitingConeAngle value " 
                + "of feSpotLight element is:"  
                + g.limitingConeAngle.baseVal) 
        </script> 
    </svg> 
</body> 
  
</html>

输出：

范例2：

<!DOCTYPE html> 
<html> 
  
<body> 
    <svg width="200" height="200"> 
        <defs> 
            <filter id="FillPaint"> 
                <feSpecularLighting result="spec3" 
                    in="blur3" specularConstant="1.2" 
                    lighting-color="#FFF"> 
  
                    <feSpotLight x="600" y="600" 
                        z="1200" pointAtX="400" 
                        pointAtY="400" pointAtZ="400"
                        specularExponent="7" 
                        limitingConeAngle="9" id="gfg" /> 
                </feSpecularLighting> 
  
                <feComposite in="SourceGraphic" 
                    in2="spotlight" operator="out" 
                    k1="0" k2="1" k3="1" k4="0" /> 
            </filter> 
        </defs> 
  
        <rect x="10" y="10" width="198" 
            height="118" style="stroke:#000000;  
                        fill:black;  
                  filter:url(#FillPaint);" /> 
  
        <circle cx="110" cy="70" r="60" 
            stroke="darkgreen" stroke-width="3" 
            fill="Lightgreen"
            style="stroke:filter:url(#FillPaint);" /> 
  
        <g fill="#FFFFFF" stroke="Green" 
            font-size="10" font-family="Verdana" /> 
  
        <text x="60" y="62">GeeksForGeeks</text> 
  
        <script type="text/javascript"> 
            var g = document.getElementById("gfg"); 
            console.log(g.limitingConeAngle); 
            console.log("limitingConeAngle value " 
                + "of feSpotLight element is:" 
                + g.limitingConeAngle.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 FESpotLightElement.limitingConeAngle 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。