SVGMarkerElement.markerUnits

The markerUnits read-only property of the SVGMarkerElement interface returns an SVGAnimatedEnumeration object. This object returns an integer which represents the keyword values that the markerUnits attribute accepts.

Syntax

let markerUnits = SVGMarkerElement.markerUnits;

Value

An SVGAnimatedEnumeration object. The baseVal property of this object contains one of the following values:

0
SVG_MARKERUNITS_UNKNOWN which means that the markerUnits attribute has a value other than the two predefined keywords.
1
SVG_MARKERUNITS_USERSPACEONUSE which means that the markerUnits attribute has the keyword value userSpaceOnUse.
2
SVG_MARKERUNITS_STROKEWIDTH which means that the markerUnits attribute has the keyword value strokeWidth.

Examples

The markerUnits property returns an SVGAnimatedEnumeration object that contains the value of the markerUnits attribute.

<svg id="svg" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <marker id="arrow" viewBox="0 0 10 10" refX="5" refY="5"
        markerWidth="6" markerHeight="6"
        orient="auto-start-reverse"
        markerUnits="strokeWidth">
      <path d="M 0 0 L 10 5 L 0 10 z" />
    </marker>
  </defs>
</svg>
let marker = document.getElementById("arrow");
console.log(marker.markerUnits.baseVal); // 2

Specifications

Specification Status Comment
Scalable Vector Graphics (SVG) 2
The definition of 'SVGMarkerElement.markerUnits' in that specification.
Candidate Recommendation Initial definition

Browser compatibility

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