如何在悬停时在SVG内部的路径元素中添加阴影

时间：2019-12-10 14:30:08

标签： html css svg

我正在尝试在SVG内的分组路径中应用阴影，例如CSS中的盒子阴影，试图在悬停上仅应用类box-shadow: 2px 2px 13px 0 var(rgba(0, 0, 0, 0.3));但它不起作用，还尝试了过滤器，类似：

<filter id="dropshadow" x="-2" y="-2" width="300" height="300">
  <feGaussianBlur  stdDeviation="1"/>
</filter>

，然后将其添加到悬停该过滤器的路径上，但仍无法正常工作

  filter: url('#dropshadow');

关于如何实现这一目标的任何想法？这是jsfiddle

编辑：能够创建一个可以使用此显示的阴影：

<filter id="selective-shadow">
     <feColorMatrix type="matrix" values="0 0 0 0 0 
                                          0 0 0 0 0
                                          0 0 0 0 0 
                                          2 0 0 0 -1"/>
     <feGaussianBlur stdDeviation="3"/>
     <feOffset dy="0" dx="0"/>
     <feMerge>
       <feMergeNode/>
       <feMergeNode in="SourceGraphic"/>
     </feMerge>         
   </filter>

现在在我的CSS上，我试图一起使用悬停效果+阴影效果，但不起作用：

path {
    fill: #e5e5e5;
}

path:hover {
    stroke: #f4f6f9;
    stroke-width:2px;
    stroke-linejoin: round;
    fill: #f4f6f9;
    cursor: pointer;
}

path:hover:before {
    content: "";
    filter: url('#selective-shadow');
}

1 个答案:

答案 0 :(得分：2)

要在悬停时创建阴影，我添加了由@ErikDahlström开发的滤镜：http://xn--dahlstrm-t4a.net/svg/filters/arrow-with-dropshadow.svg

为了使代码可以放入代码段中，我仅添加了一些状态。

var svg = document.querySelector("svg");
var paths = document.querySelectorAll("path.state");

var i = paths.length;
while(i--) {
  paths[i].addEventListener("mouseover", function(e) {
    svg.appendChild(e.target);
  });
}
.state {
fill:white;
stroke:dodgerblue;
transform-origin: center center;
transform-box: fill-box;
transition:  1s;
}

:hover.state {
 fill:blue;
 stroke:white;
 stroke-width:2px;
 filter:url(#dropshadow);
 -webkit-transform: scale(1.5);
 transform: scale(1.5);
 
 }
<body>
   <section id="map">

    <svg version="1.1"
       id="svg2" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="467 -284 959 593" xml:space="preserve">
   <defs>
    <filter id="dropshadow" height="130%">
      <feGaussianBlur in="SourceAlpha" stdDeviation="3"/> 
      <feOffset dx="2" dy="2" result="offsetblur"/> 
      <feMerge> 
        <feMergeNode/>
        <feMergeNode in="SourceGraphic"/> 
      </feMerge>
    </filter>
  </defs>      
      <g>
	  <title>"ID" - IDAHO
	  State capital city - Boise
	  Population - 228,790
	  </title>
      <path id="ID"  class="state" d="
        M615.5-107.5l8.8-35.2l1.4-4.2l2.5-5.9l-1.3-2.3l-2.5,0.1l-0.8-1l0.5-1.1l0.3-3.1l4.5-5.5l1.8-0.5l1.1-1.1l0.6-3.2l0.9-0.7l3.9-5.8
        l3.9-4.3l0.2-3.8l-3.4-2.6l-1.5-4.4l13.6-63.3l13.5,2.5l-4.4,21.4l3.6,7.5l-1.6,4.7l2,4.6l3.1,1.3l3.8,9.6l3.5,4.4l0.5,1.1l3.3,1.1
        l0.4,2.1l-7,17.4l-0.2,2.6l2.6,3.3l0.9,0l4.9-3l0.7-1.1l1.6,0.7l-0.3,5.4l2.7,12.6l3.9,3.2l1.7,2.2l-0.7,4.1l1.1,2.8l1.1,1.1
        l2.5-2.4l2.8,0l2.9,1.3l2.8-0.7l3.8-0.2l4,1.6l2.7-0.3l0.5-3l2.9-0.8l1.3,1.5l0.4,2.9l1.4,1.2l-8.4,53.6
        C710.4-89.3,622.5-106,615.5-107.5z"/> 
		</g>
  <g>    
	<title>   "UT" - Utah
	  State capital city - Salt Lake City
	  Population
	  City	186,440
	  Estimate Estimate (2018)	200,591
	  </title>
      <path id="UT"  class="state" d="M726.5,26.1l-83.7-11.9
        l20.6-112.5l46.8,8.7l-1.5,10.6l-2.3,13.2l7.8,0.9l16.4,1.8l8.2,0.9L726.5,26.1z"/>
</g>
      <g>    
	<title>   "AZ" - Arizona
	  State capital city - Phoenix
	  Population
	  City	1,445,632
	  Estimate Estimate (2018)	1,660,272
	  </title>
	  <path id="AZ" class="state" d="
        M611.9,98.6l-2.6,2.2l-0.3,1.5l0.5,1l18.9,10.7l12.1,7.6l14.7,8.6l16.8,10l12.3,2.4l25,2.7l17.3-119.1l-83.7-11.9l-3.1,16.4l-1.6,0
        l-1.7,2.6l-2.5-0.1l-1.3-2.7l-2.7-0.3l-0.9-1.1H628l-0.9,0.6l-1.9,1l-0.1,7l-0.2,1.7l-0.6,12.6l-1.5,2.2l-0.6,3.3l2.7,4.9l1.3,5.8
        l0.8,1l1,0.6l-0.1,2.3l-1.6,1.4l-3.4,1.7l-1.9,1.9l-1.5,3.7l-0.6,4.9l-2.9,2.7l-2.1,0.7l0.1,0.8l-0.5,1.7l0.5,0.8l3.7,0.6l-0.6,2.7
        l-1.5,2.2L611.9,98.6z"/>
</g>		
<g>    
	<title>   "NV" - Nevada
	  State capital city - Carson City
	  Population
	  City	55,274
	  Estimate Estimate (2018)	55,414
	  </title>
      <path id="NV" class="state" d="M663.4-98.4
        L639.8,30.4l-1.8,0.3l-1.6,2.4l-2.4,0l-1.5-2.7l-2.6-0.4l-0.8-1.1l-1-0.1l-2.8,1.6l-0.3,6.8l-0.4,5.8l-0.3,8.6l-1.4,2.1l-2.4-1.1
        L551.3-51.5l19-67.6L663.4-98.4z"/>
</g>		
<g>    
	<title>   "OR" - Oregon
	  State capital city - Salem
	  Population
	  City	154,637
	  Estimate Estimate (2018)	173,442
	  </title>
      <path id="OR" class="state" d="
        M615.7-108.5l8.9-34.8l1.1-4.2l2.4-5.6l-0.6-1.2l-2.5,0l-1.3-1.7l0.5-1.5l0.5-3.2l4.5-5.5l1.8-1.1l1.1-1.1l1.5-3.6l4-5.7l3.6-3.9
        l0.2-3.5l-3.3-2.5l-1.8-4.6l-12.7-3.6l-15.1-3.5l-15.4,0.1l-0.5-1.4l-5.5,2.1l-4.5-0.6l-2.4-1.6l-1.3,0.7l-4.7-0.2l-1.7-1.4
        l-5.3-2.1l-0.8,0.1l-4.3-1.5l-1.9,1.8l-6.2-0.3l-5.9-4.1l0.7-0.8l0.2-7.8l-2.3-3.9l-4.1-0.6l-0.7-2.5l-2.4-0.5l-5.8,2.1l-2.3,6.5
        l-3.2,10l-3.2,6.5l-5,14.1l-6.5,13.6l-8.1,12.6l-1.9,2.9l-0.8,8.6l0.4,12.1L615.7-108.5z"/>
</g>     
	 <g>
	  <title>   "WA" - Washington Territory
	  State capital city - Olympia
	  Population
	  City	46,478
	  Estimate (2018)	52,555
	  </title>
      <path id="WA" class="state" class="state" d="
        M569.1-276.4l4.4,1.5l9.7,2.7l8.6,1.9l20,5.7l23,5.7l15.2,3.2l-13.6,63.6l-12.4-3.5l-15.5-3.6l-15.2,0l-0.5-1.3l-5.6,2.2l-4.6-0.7
        l-2.1-1.6L579-200l-4.7-0.1l-1.7-1.3l-5.3-2.1l-0.7,0.1l-4.4-1.5l-1.9,1.8l-6.3-0.3l-5.9-4.1l0.8-0.9l0.1-7.7l-2.3-3.8l-4.1-0.6
        l-0.7-2.5l-2.3-0.5l-3.6,1.2l-2.3-3.2l0.3-2.9l2.7-0.3l1.6-4l-2.6-1.1l0.2-3.7l4.4-0.6l-2.7-2.7l-1.5-7.1l0.6-2.9v-7.9l-1.8-3.2
        l2.3-9.4l2.1,0.5l2.4,2.9l2.7,2.6l3.2,1.9l4.5,2.1l3.1,0.6l2.9,1.5l3.4,1l2.3-0.2v-2.4l1.3-1.1l2.1-1.3l0.3,1.1l0.3,1.8l-2.3,0.5
        l-0.3,2.1l1.8,1.5l1.1,2.4l0.6,1.9l1.5-0.2l0.2-1.3l-1-1.3l-0.5-3.2l0.8-1.8l-0.6-1.5v-2.3l1.8-3.6l-1.1-2.6l-2.4-4.9l0.3-0.8
        L569.1-276.4z M559.6-270.4l2-0.2l0.5,1.4l1.5-1.6h2.3l0.8,1.5l-1.5,1.7l0.6,0.8l-0.7,2l-1.4,0.4c0,0-0.9,0.1-0.9-0.2
        s1.5-2.6,1.5-2.6l-1.7-0.6l-0.3,1.5l-0.7,0.6l-1.5-2.3L559.6-270.4z"/>
  </g> 
  <g>
	  <title>   "CA" - California
	  State capital city - Sacramento
	  Population
	  City	466,488
	  Estimate (2018)	508,529
	  </title>
      <path id="CA" class="state" d="
        M611.7,98.2l3.9-0.5l1.5-2l0.5-2.9l-3.6-0.6l-0.5-0.7l0.5-2l-0.2-0.6l1.9-0.6l3-2.8l0.6-5l1.4-3.4l1.9-2.2l3.5-1.6l1.7-1.6l0.1-2.1
        l-1-0.6l-1-1.1l-1.2-5.8l-2.7-4.8l0.6-3.5l-2.4-1L551.3-51.5l18.9-67.6l-67.1-15.7l-1.5,4.7l-0.2,7.4l-5.2,11.8l-3.1,2.6l-0.3,1.1
        l-1.8,0.8l-1.5,4.2l-0.8,3.2l2.7,4.2l1.6,4.2l1.1,3.6l-0.3,6.5l-1.8,3.1l-0.6,5.8l-1,3.7l1.8,3.9l2.7,4.5l2.3,4.9l1.3,4l-0.3,3.2
        l-0.3,0.5v2.1l5.7,6.3l-0.5,2.4l-0.6,2.3l-0.6,1.9l0.2,8.2l2.1,3.7l1.9,2.6l2.7,0.5l1,2.7l-1.1,3.6l-2.1,1.6h-1.1l-0.8,3.9l0.5,2.9
        l3.2,4.4l1.6,5.3l1.5,4.7l1.3,3.1l3.4,5.8l1.5,2.6l0.5,2.9l1.6,1v2.4l-0.8,1.9l-1.8,7.1l-0.5,1.9l2.4,2.7l4.2,0.5l4.5,1.8l3.9,2.1
        h2.9l2.9,3.1l2.6,4.9l1.1,2.3l3.9,2.1l4.8,0.8l1.5,2.1l0.6,3.2l-1.5,0.6l0.3,1l3.2,0.8l2.7,0.2l3.2-1.7l3.9,4.2l0.8,2.3l2.6,4.2
        l0.3,3.2v9.4l0.5,1.8l10,1.5l19.7,2.7L611.7,98.2z M523.6,54.5l1.3,1.5l-0.2,1.3l-3.2-0.1l-0.6-1.2l-0.6-1.5L523.6,54.5z
         M525.5,54.5l1.2-0.6l3.6,2.1l3.1,1.2l-0.9,0.6l-4.5-0.2l-1.6-1.6L525.5,54.5z M546.2,74.3l1.8,2.3l0.8,1l1.5,0.6l0.6-1.5l-1-1.8
        l-2.7-2l-1.1,0.2V74.3z M544.7,82.9l1.8,3.2l1.2,1.9l-1.5,0.2l-1.3-1.2c0,0-0.7-1.5-0.7-1.9s0-2.2,0-2.2L544.7,82.9z"/>
		</g>
    </svg>

  </section>
</body>

不使用Javascript的选项

将鼠标悬停在对象上时，将出现阴影和多行工具提示。
适用于所有新型浏览器，包括IE11，Edge 

.state {
fill:white;
stroke:skyblue;
transform-origin: center center;
transform-box: fill-box;
}

:hover.state {
 fill:blue;
 stroke:white;
 stroke-width:2px;
 filter:url(#dropshadow);
  
 }
<body>
   <section id="map">

    <svg version="1.1"
       id="svg2" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="467 -284 959 593" xml:space="preserve">
      <defs>
    <filter id="dropshadow" height="130%">
      <feGaussianBlur in="SourceAlpha" stdDeviation="3"/> 
      <feOffset dx="2" dy="2" result="offsetblur"/> 
      <feMerge> 
        <feMergeNode/>
        <feMergeNode in="SourceGraphic"/> 
      </feMerge>
    </filter>
  </defs>
	  <g>
	  <title>"ID" - IDAHO
	  State capital city - Boise
	  Population - 228,790
	  </title>
      <path id="ID"  class="state" d="
        M615.5-107.5l8.8-35.2l1.4-4.2l2.5-5.9l-1.3-2.3l-2.5,0.1l-0.8-1l0.5-1.1l0.3-3.1l4.5-5.5l1.8-0.5l1.1-1.1l0.6-3.2l0.9-0.7l3.9-5.8
        l3.9-4.3l0.2-3.8l-3.4-2.6l-1.5-4.4l13.6-63.3l13.5,2.5l-4.4,21.4l3.6,7.5l-1.6,4.7l2,4.6l3.1,1.3l3.8,9.6l3.5,4.4l0.5,1.1l3.3,1.1
        l0.4,2.1l-7,17.4l-0.2,2.6l2.6,3.3l0.9,0l4.9-3l0.7-1.1l1.6,0.7l-0.3,5.4l2.7,12.6l3.9,3.2l1.7,2.2l-0.7,4.1l1.1,2.8l1.1,1.1
        l2.5-2.4l2.8,0l2.9,1.3l2.8-0.7l3.8-0.2l4,1.6l2.7-0.3l0.5-3l2.9-0.8l1.3,1.5l0.4,2.9l1.4,1.2l-8.4,53.6
        C710.4-89.3,622.5-106,615.5-107.5z"/> 
		</g>
  <g>    
	<title>   "UT" - Utah
	  State capital city - Salt Lake City
	  Population
	  City	186,440
	  Estimate Estimate (2018)	200,591
	  </title>
      <path id="UT"  class="state" d="M726.5,26.1l-83.7-11.9
        l20.6-112.5l46.8,8.7l-1.5,10.6l-2.3,13.2l7.8,0.9l16.4,1.8l8.2,0.9L726.5,26.1z"/>
</g>
      <g>    
	<title>   "AZ" - Arizona
	  State capital city - Phoenix
	  Population
	  City	1,445,632
	  Estimate Estimate (2018)	1,660,272
	  </title>
	  <path id="AZ" class="state" d="
        M611.9,98.6l-2.6,2.2l-0.3,1.5l0.5,1l18.9,10.7l12.1,7.6l14.7,8.6l16.8,10l12.3,2.4l25,2.7l17.3-119.1l-83.7-11.9l-3.1,16.4l-1.6,0
        l-1.7,2.6l-2.5-0.1l-1.3-2.7l-2.7-0.3l-0.9-1.1H628l-0.9,0.6l-1.9,1l-0.1,7l-0.2,1.7l-0.6,12.6l-1.5,2.2l-0.6,3.3l2.7,4.9l1.3,5.8
        l0.8,1l1,0.6l-0.1,2.3l-1.6,1.4l-3.4,1.7l-1.9,1.9l-1.5,3.7l-0.6,4.9l-2.9,2.7l-2.1,0.7l0.1,0.8l-0.5,1.7l0.5,0.8l3.7,0.6l-0.6,2.7
        l-1.5,2.2L611.9,98.6z"/>
</g>		
<g>    
	<title>   "NV" - Nevada
	  State capital city - Carson City
	  Population
	  City	55,274
	  Estimate Estimate (2018)	55,414
	  </title>
      <path id="NV" class="state" d="M663.4-98.4
        L639.8,30.4l-1.8,0.3l-1.6,2.4l-2.4,0l-1.5-2.7l-2.6-0.4l-0.8-1.1l-1-0.1l-2.8,1.6l-0.3,6.8l-0.4,5.8l-0.3,8.6l-1.4,2.1l-2.4-1.1
        L551.3-51.5l19-67.6L663.4-98.4z"/>
</g>		
<g>    
	<title>   "OR" - Oregon
	  State capital city - Salem
	  Population
	  City	154,637
	  Estimate Estimate (2018)	173,442
	  </title>
      <path id="OR" class="state" d="
        M615.7-108.5l8.9-34.8l1.1-4.2l2.4-5.6l-0.6-1.2l-2.5,0l-1.3-1.7l0.5-1.5l0.5-3.2l4.5-5.5l1.8-1.1l1.1-1.1l1.5-3.6l4-5.7l3.6-3.9
        l0.2-3.5l-3.3-2.5l-1.8-4.6l-12.7-3.6l-15.1-3.5l-15.4,0.1l-0.5-1.4l-5.5,2.1l-4.5-0.6l-2.4-1.6l-1.3,0.7l-4.7-0.2l-1.7-1.4
        l-5.3-2.1l-0.8,0.1l-4.3-1.5l-1.9,1.8l-6.2-0.3l-5.9-4.1l0.7-0.8l0.2-7.8l-2.3-3.9l-4.1-0.6l-0.7-2.5l-2.4-0.5l-5.8,2.1l-2.3,6.5
        l-3.2,10l-3.2,6.5l-5,14.1l-6.5,13.6l-8.1,12.6l-1.9,2.9l-0.8,8.6l0.4,12.1L615.7-108.5z"/>
</g>     
	 <g>
	  <title>   "WA" - Washington Territory
	  State capital city - Olympia
	  Population
	  City	46,478
	  Estimate (2018)	52,555
	  </title>
      <path id="WA" class="state"  d="
        M569.1-276.4l4.4,1.5l9.7,2.7l8.6,1.9l20,5.7l23,5.7l15.2,3.2l-13.6,63.6l-12.4-3.5l-15.5-3.6l-15.2,0l-0.5-1.3l-5.6,2.2l-4.6-0.7
        l-2.1-1.6L579-200l-4.7-0.1l-1.7-1.3l-5.3-2.1l-0.7,0.1l-4.4-1.5l-1.9,1.8l-6.3-0.3l-5.9-4.1l0.8-0.9l0.1-7.7l-2.3-3.8l-4.1-0.6
        l-0.7-2.5l-2.3-0.5l-3.6,1.2l-2.3-3.2l0.3-2.9l2.7-0.3l1.6-4l-2.6-1.1l0.2-3.7l4.4-0.6l-2.7-2.7l-1.5-7.1l0.6-2.9v-7.9l-1.8-3.2
        l2.3-9.4l2.1,0.5l2.4,2.9l2.7,2.6l3.2,1.9l4.5,2.1l3.1,0.6l2.9,1.5l3.4,1l2.3-0.2v-2.4l1.3-1.1l2.1-1.3l0.3,1.1l0.3,1.8l-2.3,0.5
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  </g> 
  <g>
	  <title>   "CA" - California
	  State capital city - Sacramento
	  Population
	  City	466,488
	  Estimate (2018)	508,529
	  </title>
      <path id="CA" class="state" d="
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    </svg>

  </section>
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