问题描述
我需要在 SVG 圆中添加径向/锥形渐变。不幸的是，标准不支持：https://wiki.inkscape.org/wiki/index.php/Advanced_Gradients#Conical_gradient
因此，我采用了与此类似的解决方案：https://stackoverflow.com/a/18210763 但我没有使用多种颜色，而是使用带有 alpha 变化的相同颜色。
小米最终结果是这样的：
<g fill="none" stroke-width="8" transform="translate(-49,-10) scale(1.2) rotate(0,125,50)" opacity="1">
<path d="M127.5593032836914,78.30342873930931 C124.73236846923828,78.30342873930931 122.4406967163086,76.50826272368431 122.4406967163086,74.29380044341087 C122.4406967163086,72.07933816313744 124.73236846923828,70.28415688872337 127.5593032836914,70.28415688872337 V78.30342873930931 z" fill="#23B26D"
transform="scale(-1,1) translate(-252,-48.7)" />
<path d="M124.99998474121094,25.63152313232422 A24.357080459594727,24.368465423583984 0 0 1 146.0932159423828,37.81575393676758 "
stroke="url(#redyel)" />
<path d="M146.0932159423828,37.81575393676758 A24.357080459594727,62.18423271179199 "
stroke="url(#yelgre)" />
<path d="M146.0932159423828,62.18423271179199 A24.357080459594727,24.368465423583984 0 0 1 124.99998474121094,74.36847496032715 "
stroke="url(#grecya)" />
<path d="M124.99998474121094,74.36847496032715 A24.357080459594727,24.368465423583984 0 0 1 103.90676879882812,62.18423271179199 "
stroke="url(#cyablu)" />
<path d="M103.90676879882812,37.81575393676758 "
stroke="url(#blumag)" />
<path d="M103.90676879882812,25.63152313232422 "
stroke="url(#magred)" />
</g>
<defs>
<linearGradient id="redyel" gradientUnits="objectBoundingBox" x1="0" y1="0" x2="1" y2="1">
<stop offset="0%" stop-color="#23B26D" stop-opacity="0.3"/>
<stop offset="100%" stop-color="#23B26D" stop-opacity="0.41"/>
</linearGradient>
<linearGradient id="yelgre" gradientUnits="objectBoundingBox" x1="0" y1="0" x2="0"
y2="1">
<stop offset="0%" stop-color="#23B26D" stop-opacity="0.41"/>
<stop offset="100%" stop-color="#23B26D" stop-opacity="0.52"/>
</linearGradient>
<linearGradient id="grecya" gradientUnits="objectBoundingBox" x1="1" y1="0" x2="0"
y2="1">
<stop offset="0%" stop-color="#23B26D" stop-opacity="0.52"/>
<stop offset="100%" stop-color="#23B26D" stop-opacity="0.63"/>
</linearGradient>
<linearGradient id="cyablu" gradientUnits="objectBoundingBox" x1="1" y1="1" x2="0"
y2="0">
<stop offset="0%" stop-color="#23B26D" stop-opacity="0.63"/>
<stop offset="100%" stop-color="#23B26D" stop-opacity="0.74"/>
</linearGradient>
<linearGradient id="blumag" gradientUnits="objectBoundingBox" x1="0" y1="1" x2="0"
y2="0">
<stop offset="0%" stop-color="#23B26D" stop-opacity="0.74"/>
<stop offset="100%" stop-color="#23B26D" stop-opacity="0.85"/>
</linearGradient>
<linearGradient id="magred" gradientUnits="objectBoundingBox" x1="0" y1="1" x2="1"
y2="0">
<stop offset="0%" stop-color="#23B26D" stop-opacity="0.85"/>
<stop offset="100%" stop-color="#23B26D" stop-opacity="1"/>
</linearGradient>
<linearGradient id="lgrad" x1="100%" y1="50%" x2="0%" y2="50%">
<stop offset="0%" style="stop-color:rgb(255,255,255);stop-opacity:0"/>
<stop offset="60%" style="stop-color:rgb(255,255);stop-opacity:1"/>
<stop offset="100%" style="stop-color:rgb(255,255);stop-opacity:1"/>
</linearGradient>
<linearGradient id="rgrad" x1="0%" y1="50%" x2="100%" y2="50%">
<stop offset="0%" style="stop-color:rgb(255,255);stop-opacity:1"/>
</linearGradient>
</defs>
https://codepen.io/scvsoft-marianovicente/pen/abmrdXo
它看起来足够好，但现在，我在每个元素之间都有小空间。 （取决于浏览器在某些地方看起来比其他地方更明显）。
我尝试应用扭曲/模糊。隐藏它但影响所有边界。 可以隐藏这些空间吗？
解决方法
尝试使用退火过滤器（膨胀/腐蚀）。看看它是否能解决您的问题。
<svg class="streak-animation" viewbox="0 0 250 100" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="anneal">
<feMorphology operator="dilate" radius="1" />
<feMorphology operator="erode" radius="1" />
</filter>
</defs>
<g class="all-streaks" filter="url(#anneal)">
更多详情 - 根据要求：
- feMorphology 过滤器将每个像素的 R、G、B 和 A 值替换为 2*半径内这些颜色通道的最大值（扩张）或最小值（侵蚀）。对于简单的单色形状，这可以有效地在形状周围添加（或减去）一个像素的轮廓。
- 在这种情况下，扩张填充形状之间的超细线（并在整个形状周围添加 1px 边框）。但是，当您进行侵蚀时，形状之间不再有任何半透明像素来提供低 alpha 值以进行侵蚀，因此仅移除了整个形状周围 1px 的轮廓。