SVGEllipseElement: rx property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

The rx read-only property of the SVGEllipseElement interface describes the x-axis radius of the ellipse as an SVGAnimatedLength. It reflects the computed value of the rx attribute on the <ellipse> element.

The attribute value is a <length>, <percentage>, or <number>. The numeric value of the SVGAnimatedLength.baseVal is the radius of the ellipse along the x-axis in the user coordinate system.

Value

An SVGAnimatedLength.

Example

Given the following SVG:

html
<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 rx attributes:

js
const ellipses = document.querySelectorAll("ellipse");
const rxPos0 = ellipses[0].rx;
const rxPos1 = ellipses[1].rx;

console.dir(rxPos0.baseVal.value); // output: 30
console.dir(rxPos1.baseVal.value); // output: 20 (10% of 200)

Specifications

Specification
Scalable Vector Graphics (SVG) 2
# __svg__SVGEllipseElement__rx

Browser compatibility

Report problems with this compatibility data on GitHub
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
rx

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Full support

See also