seed

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.

We’d love to hear your thoughts on the next set of proposals for the JavaScript language. You can find a description of the proposals here.
Please take two minutes to fill out our short survey.

Das seed-Attribut repräsentiert die Startzahl für den Pseudo-Zufallszahlengenerator des <feTurbulence> Filterprimitives.

Sie können dieses Attribut mit den folgenden SVG-Elementen verwenden:

Beispiel

Beispiel 1

html
<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
  <filter id="noise1" x="0" y="0" width="100%" height="100%">
    <feTurbulence baseFrequency="0.025" seed="0" />
  </filter>
  <filter id="noise2" x="0" y="0" width="100%" height="100%">
    <feTurbulence baseFrequency="0.025" seed="100" />
  </filter>

  <rect x="0" y="0" width="200" height="200" style="filter:url(#noise1);" />
  <rect
    x="0"
    y="0"
    width="200"
    height="200"
    style="filter:url(#noise2); transform: translateX(220px);" />
</svg>

Beispiel 2

html
<svg
  width="200"
  height="200"
  viewBox="0 0 220 220"
  xmlns="http://www.w3.org/2000/svg">
  <filter id="displacementFilter">
    <feTurbulence baseFrequency="0.05" seed="1000" result="turbulence" />
    <feDisplacementMap
      in2="turbulence"
      in="SourceGraphic"
      scale="50"
      xChannelSelector="R"
      yChannelSelector="G" />
  </filter>

  <circle cx="100" cy="100" r="100" style="filter: url(#displacementFilter)" />
</svg>

Nutzungshinweise

Wert <number>
Standardwert 0
Animierbar Ja

Spezifikationen

Specification
Filter Effects Module Level 1
# element-attrdef-feturbulence-seed

Browser-Kompatibilität