files/en-us/web/api/svgellipseelement/cy/index.md
{{APIRef("SVG")}}
The cy read-only property of the {{domxref("SVGEllipseElement")}} interface describes the y-axis coordinate of the center of the ellipse as an {{domxref("SVGAnimatedLength")}}. It reflects the computed value of the {{SVGAttr("cy")}} attribute on the {{SVGElement("ellipse")}} element.
The attribute value is a <length>, <percentage>, or <number>. The numeric value of the {{domxref("SVGAnimatedLength.baseVal")}} is the y-coordinate of the ellipse's center in the user coordinate system.
An {{domxref("SVGAnimatedLength")}}.
Given the following SVG:
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<ellipse cx="50" cy="75" rx="30" ry="20" fill="blue" />
<ellipse cx="25%" cy="50%" rx="10%" ry="5%" fill="red" />
</svg>
We can access the computed values of the cy attributes:
const ellipses = document.querySelectorAll("ellipse");
const cyPos0 = ellipses[0].cy;
const cyPos1 = ellipses[1].cy;
console.dir(cyPos0.baseVal.value); // output: 75
console.dir(cyPos1.baseVal.value); // output: 100 (50% of the viewBox height, 200)
{{Specifications}}
{{Compat}}