SVGFECompositeElement: k4 property

The k4 read-only property of the {{domxref("SVGFECompositeElement")}} interface reflects the {{SVGAttr("k4")}} attribute of the given {{SVGElement("feComposite")}} element.

Value

An {{domxref("SVGAnimatedNumber")}} object.

Examples

In this example, two {{SVGElement("feComposite")}} elements are defined in a filter, each with a different k4 attribute.

html

<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
  <filter id="filter1">
    <feImage
      href="https://mdn.github.io/shared-assets/images/examples/progress-pride-flag.jpg"
      width="140"
      x="30"
      y="10" />
    <feComposite
      in2="SourceGraphic"
      operator="arithmetic"
      k1="0.1"
      k2="0.2"
      k3="0.3"
      k4="0.4" />
  </filter>
  <circle cx="100" cy="50" r="30" filter="url(#filter1)" />
</svg>

We can access the k4 attribute:

const composites = document.querySelectorAll("feComposite");

console.log(composites[0].k4.baseVal); // output: 0.4

Value

Examples

Specifications

Browser compatibility

See also