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/SVG

radius

The radius attribute represents the radius (or radii) for the operation on a given <feMorphology> filter primitive.

If two numbers are provided, the first number represents the x-radius and the second one the y-radius. If one number is provided, then that value is used for both x and y. The values are in the coordinate system established by the primitiveUnits attribute on the <filter> element.

A negative or zero value disables the effect of the given filter primitive (i.e., the result is the filter input image).

Usage notes

Value	<number-optional-number>
Default value	`0`
Animatable	Yes

Specifications

Specification	Status	Comment
Filter Effects Module Level 1 The definition of 'radius' in that specification.	Working Draft	No change
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'radius' in that specification.	Recommendation	Initial definition

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
`radius`	Yes	12	4	Yes	9	?

	Mobile
	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`radius`	Yes	Yes	4	?	?	Yes

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https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/radius