filterUnits

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 filterUnits attribute defines the coordinate system for the attributes x, y, width and height.

You can use this attribute with the following SVG elements:

<filter>

Usage notes

Value Default value Animatable

userSpaceOnUse | objectBoundingBox

objectBoundingBox

Yes

userSpaceOnUse

x, y, width and height represent values in the current coordinate system that results from taking the current user coordinate system in place at the time when the <filter> element is referenced (i.e., the user coordinate system for the element referencing the <filter> element via a filter attribute).

objectBoundingBox

In that case, x, y, width and height represent fractions or percentages of the bounding box on the referencing element.