SVGEllipseElement: cx 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 cx read-only property of the SVGEllipseElement interface describes the x-axis coordinate of the center of the ellipse as an SVGAnimatedLength. It reflects the computed value of the cx attribute on the <ellipse> element.

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

Value

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 cx attributes:

js
const ellipses = document.querySelectorAll("ellipse");
const cxPos0 = ellipses[0].cx;
const cxPos1 = ellipses[1].cx;

console.dir(cxPos0.baseVal.value); // output: 50
console.dir(cxPos1.baseVal.value); // output: 50 (25% of 200)

Specifications

Specification
Scalable Vector Graphics (SVG) 2
# __svg__SVGEllipseElement__cx

Browser compatibility

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

Legend

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Full support
Full support

See also