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pointsAtY

files/en-us/web/svg/reference/attribute/pointsaty/index.md

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The pointsAtY attribute represents the y location in the coordinate system established by attribute {{SVGAttr("primitiveUnits")}} on the {{SVGElement("filter")}} element of the point at which the light source is pointing.

You can use this attribute with the following SVG elements:

  • {{SVGElement("feSpotLight")}}

Example

css
html,
body,
svg {
  height: 100%;
}
html
<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
  <filter id="lighting1" x="0" y="0" width="100%" height="100%">
    <feDiffuseLighting in="SourceGraphic">
      <feSpotLight x="60" y="60" z="50" pointsAtY="0" />
    </feDiffuseLighting>
  </filter>
  <filter id="lighting2" x="0" y="0" width="100%" height="100%">
    <feDiffuseLighting in="SourceGraphic">
      <feSpotLight x="60" y="60" z="50" pointsAtY="400" />
    </feDiffuseLighting>
  </filter>

  <rect x="0" y="0" width="200" height="200" filter="url(#lighting1)" />
  <rect x="220" y="0" width="200" height="200" filter="url(#lighting2)" />
</svg>

{{EmbedLiveSample("Example", "220", "220")}}

Usage notes

<table class="properties"> <tbody> <tr> <th scope="row">Default value</th> <td><code>0</code></td> </tr> <tr> <th scope="row">Value</th> <td>{{cssxref("number")}}</td> </tr> <tr> <th scope="row">Animatable</th> <td>Yes</td> </tr> </tbody> </table>

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}