files/en-us/web/api/svgfedisplacementmapelement/scale/index.md
{{APIRef("SVG")}}
The scale read-only property of the {{domxref("SVGFEDisplacementMapElement")}} interface reflects the {{SVGAttr("scale")}} attribute of the given {{SVGElement("feDisplacementMap")}} element.
An {{domxref("SVGAnimatedNumber")}} object.
scale attributeIn this example, the {{SVGElement("feDisplacementMap")}} element defined in the {{SVGElement("filter")}} includes a scale attribute.
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="filter1">
<!-- Displacement Map -->
<feDisplacementMap in="SourceGraphic" scale="20">
<feFuncR type="table" tableValues="0 1" />
</feDisplacementMap>
</filter>
</defs>
<rect
x="20"
y="20"
width="100"
height="100"
fill="red"
filter="url(#filter1)" />
</svg>
We can access the scale attribute and get its value:
const displacementMap = document.querySelector("feDisplacementMap");
console.log(displacementMap.scale.baseVal); // Output: 20
{{Specifications}}
{{Compat}}