files/en-us/web/api/svgfemorphologyelement/radiusy/index.md
{{APIRef("SVG")}}
The radiusY read-only property of the {{domxref("SVGFEMorphologyElement")}} interface reflects the Y component of the {{SVGAttr("radius")}} attribute of the given {{SVGElement("feMorphology")}} element.
An {{domxref("SVGAnimatedNumber")}} object.
radiusY Property<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
{{Specifications}}
{{Compat}}