SVGFEDisplacementMapElement: yChannelSelector property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

The yChannelSelector read-only property of the SVGFEDisplacementMapElement interface reflects the yChannelSelector attribute of the given <feDisplacementMap> element. It takes one of the SVG_CHANNEL_* constants defined on this interface.

Value

An SVGAnimatedEnumeration object.

Examples

Accessing the `yChannelSelector` attribute

In this example, the <feDisplacementMap> element defined in the <filter> includes a yChannelSelector attribute.

html

<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <filter id="displacementFilter">
      <!-- Displacement Map with yChannelSelector set to Red Channel -->
      <feDisplacementMap in="SourceGraphic" scale="20" yChannelSelector="G">
        <feFuncR type="table" tableValues="0 1" />
      </feDisplacementMap>
    </filter>
  </defs>
  <rect
    x="20"
    y="20"
    width="100"
    height="100"
    fill="green"
    filter="url(#displacementFilter)" />
</svg>

We can access the yChannelSelector attribute and get its value:

const displacementMap = document.querySelector("feDisplacementMap");

console.log(displacementMap.yChannelSelector.baseVal); // Output: 2 (SVG_CHANNEL_G)