如何在形状内剪辑一个圆

Question

\n\n

它是一个形状里面的矩形\xe3\x80\x82

\n\n

-webkit-clip-path: polygon(0% 0%, 0% 100%, 25% 100%, 25% 25%, 75% 25%, 75% 75%, 25% 75%, 25% 100%, 100% 100%, 100% 0%);\nclip-path: polygon(0% 0%, 0% 100%, 25% 100%, 25% 25%, 75% 25%, 75% 75%, 25% 75%, 25% 100%, 100% 100%, 100% 0%);\n

\n\n

我怎样才能在里面夹一个圆？

\n

Answer 1

改用mask：

.box {
  display: inline-block;
  width: 200px;
  height: 200px;
  background: url(https://picsum.photos/id/100/800/800) center/cover;
  -webkit-mask: radial-gradient(circle 40px, #0000 98%, #fff);
          mask: radial-gradient(circle 40px, #0000 98%, #fff);
}

<div class="box"></div>

<div class="box" style="width:300px;height:300px"></div>

你可以让它响应如下：

.box {
  display:inline-block;
  width:200px;
  height:200px;
  background:url(https://picsum.photos/id/100/800/800) center/cover;
  -webkit-mask:radial-gradient(circle closest-side,#0000 calc(100% - 30px),#fff calc(100% - 32px));
          mask:radial-gradient(circle closest-side,#0000 calc(100% - 30px),#fff calc(100% - 32px));
}

<div class="box"></div>

<div class="box" style="width:300px;height:300px"></div>

Answer 2

您可以使用在 svg 中绘制的路径，如下所示：

img{-webkit-clip-path: url(#clip);;
clip-path: url(#clip);}

<img src="https://assets.codepen.io/222579/darwin300.jpg" />
<svg height="0" width="0" class="svg-clip" style="position:absolute">
        <defs>
             <clipPath id="clip" clipPathUnits="objectBoundingBox">
               <path d="M0,0 L1,0 1,1 0,1 0,0M.75,.5A.25,.25 0 1 0 .25,.5A.25,.25 0 1 0 .75,.5z" />
            </clipPath>
        </defs>
</svg>

请注意，clipPathUnits="objectBoundingBox"路径的值介于 0 和 1 之间。此外，路径的第一部分是顺时针绘制的，而第二路径（孔）是逆时针绘制的。