SVGFEMorphologyElement: radiusY 属性

<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <filter id="morphologyFilter">
      <!-- Applies a morphology filter with a specific radius -->
      <feMorphology in="SourceGraphic" operator="dilate" radius="5 3" />
    </filter>
  </defs>
  <rect
    x="20"
    y="20"
    width="100"
    height="100"
    fill="lightblue"
    filter="url(#morphologyFilter)" />
</svg>

// Select the feMorphology element
const morphologyNode = document.querySelector("feMorphology");

// Access the radiusY property
const radiusY = morphologyNode.radiusY.baseVal;

console.log(`The Y radius is: ${radiusY}`); // Output: 3