SVG 之间的图像

Question

#home {
  height: 100vh;
  background-image: url("http://4.bp.blogspot.com/-yB6Tc3mleuE/T4NkAKeazYI/AAAAAAAACB0/tlichKzIu3Q/s1600/Simple+unique+odd+weird+wallpapers+minimalistic+%2330+battleship+titanic.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  overflow: hidden;
  padding: 0;
  margin-left: -10px;
}
.background {
  overflow: hidden;
}
#fg {
  fill: pink;
  stroke: #fff;
  stroke-width: 10px;
  stroke-dasharray: 1024px;
  -webkit-animation: dash 2s;
  animation: dash 2s;
}

@keyframes dash {
  from {
    stroke-dashoffset: 1024px;
  }
  to {
    stroke-dashoffset: 0px;
  }
}

@-webkit-keyframes dash {
  from {
    stroke-dashoffset: 1024px;
  }
  to {
    stroke-dashoffset: 0px;
  }
}

#bg {
  fill: white;
  stroke: none;
  transform-origin: 1270px 550px;
  -webkit-animation: bgfill 2s linear 2s forwards;
  animation: bgfill 2s linear 2s forwards;
}

@keyframes bgfill {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(4);
  }
}

@-webkit-keyframes bgfill {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(4);
  }
}

<div id="home" class="section" style="height:100vh;">
    <div class="background">
        <svg viewBox="0 0 1376 764">
            <defs>
                <path id="shape" d="M1034.5,770.5a125.59,125.59,0,0,0-17-32c-12.32-16.72-25.68-25.84-33-31-6-4.23-59.88-42.55-100-90-13.64-16.14-20.57-24.48-26-38-15-37.48-3.73-73.65,0-85,8.68-26.45,23-43.26,35-57,19-21.82,33.56-29.9,67-54,33.68-24.27,55.39-39.91,77-60,40.56-37.69,35.94-49.35,81-96,34.18-35.39,51.27-53.08,79-65,7.79-3.35,76-31.44,140,2a142.06,142.06,0,0,1,31,22l7.5,7.5  L 1376,770.5 Z" />
            </defs>
            <use xlink:href="#shape" id="bg" />
            <use xlink:href="#shape" id="fg" />
        </svg>
    </div>
</div>

我似乎无法在保持相同效果的同时始终使背景图像可见，使填充透明摆脱了动画，我还尝试在各种元素上使用 z-index 但没有成功，如何我可以让它在白线内而不是粉红色的svg内显示背景图像吗？

我还尝试将相同的图像应用到粉红色 SVG 作为填充，它有点工作，我似乎无法让图像看起来像全屏时那样，它也使页面有点慢：

#fg {
  fill: url(#image);
  stroke: #fff;
  stroke-width: 10px;
  stroke-dasharray: 1024px;
  -webkit-animation: dash 2s;
  animation: dash 2s;
}

<pattern id="image" width="1" height="1">
  <image xlink:href="http://4.bp.blogspot.com/-yB6Tc3mleuE/T4NkAKeazYI/AAAAAAAACB0/tlichKzIu3Q/s1600/Simple+unique+odd+weird+wallpapers+minimalistic+%2330+battleship+titanic.jpg"></image>
</pattern>

Answer 1

您可以使用fill-opacity 摆脱粉红色。但是您需要调整覆盖背景图像的白色“背景”。

您可能需要为此更改形状。

您还可以将图像作为图层包含在 svg 中。

#home {
  height: 100vh;
  background-image: url("http://4.bp.blogspot.com/-yB6Tc3mleuE/T4NkAKeazYI/AAAAAAAACB0/tlichKzIu3Q/s1600/Simple+unique+odd+weird+wallpapers+minimalistic+%2330+battleship+titanic.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  overflow: hidden;
  padding: 0;
  margin-left: -10px;
}
.background {
  overflow: hidden;
}
#fg {
  fill: pink;
  fill-opacity: 0;
  stroke: #fff;
  stroke-width: 10px;
  stroke-dasharray: 1024px;
  -webkit-animation: dash 2s;
  animation: dash 2s;
}

@keyframes dash {
  from {
    stroke-dashoffset: 1024px;
  }
  to {
    stroke-dashoffset: 0px;
  }
}

@-webkit-keyframes dash {
  from {
    stroke-dashoffset: 1024px;
  }
  to {
    stroke-dashoffset: 0px;
  }
}

#bg {
  fill: white;
  opacity: .5;
  stroke: none;
  transform-origin: 1270px 550px;
  -webkit-animation: bgfill 2s linear 2s forwards;
  animation: bgfill 2s linear 2s forwards;
}

@keyframes bgfill {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(4);
  }
}

@-webkit-keyframes bgfill {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(4);
  }
}

<div id="home" class="section" style="height:100vh;">
    <div class="background">
        <svg viewBox="0 0 1376 764">
            <defs>
                <path id="shape" d="M1034.5,770.5a125.59,125.59,0,0,0-17-32c-12.32-16.72-25.68-25.84-33-31-6-4.23-59.88-42.55-100-90-13.64-16.14-20.57-24.48-26-38-15-37.48-3.73-73.65,0-85,8.68-26.45,23-43.26,35-57,19-21.82,33.56-29.9,67-54,33.68-24.27,55.39-39.91,77-60,40.56-37.69,35.94-49.35,81-96,34.18-35.39,51.27-53.08,79-65,7.79-3.35,76-31.44,140,2a142.06,142.06,0,0,1,31,22l7.5,7.5  L 1376,770.5 Z" />
            </defs>
            <use xlink:href="#shape" id="bg" />
            <use xlink:href="#shape" id="fg" />
        </svg>
    </div>
</div>