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

BCD tables only load in the browser

See also