intercept

The intercept attribute defines the intercept of the linear function of color component transfers when the type attribute is set to linear.

The linear function is defined as slope * color + intercept, where color is the color value, the intercept provides a base value for the result, and the slope is a scaling factor.

The intercept attribute is supported by children of the <feComponentTransfer> filter primitive and is used with the following SVG component transfer function elements when type="linear" is set:

Usage notes

Value <number>
Default value 0
Animatable Yes
<number>

This value indicates the intercept of the linear component transfer functions.

Example

html
<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <linearGradient
      id="gradient"
      gradientUnits="userSpaceOnUse"
      x1="0"
      y1="0"
      x2="200"
      y2="0">
      <stop offset="0" stop-color="#ff0000" />
      <stop offset="0.5" stop-color="#00ff00" />
      <stop offset="1" stop-color="#0000ff" />
    </linearGradient>
  </defs>

  <filter id="componentTransfer1" x="0" y="0" width="100%" height="100%">
    <feComponentTransfer>
      <feFuncR type="linear" intercept="0" />
      <feFuncG type="linear" intercept="0" />
      <feFuncB type="linear" intercept="0" />
    </feComponentTransfer>
  </filter>
  <filter id="componentTransfer2" x="0" y="0" width="100%" height="100%">
    <feComponentTransfer>
      <feFuncR type="linear" intercept="0.3" />
      <feFuncG type="linear" intercept="0.1" />
      <feFuncB type="linear" intercept="0.8" />
    </feComponentTransfer>
  </filter>

  <rect
    x="0"
    y="0"
    width="200"
    height="200"
    fill="url(#gradient)"
    style="filter: url(#componentTransfer1);" />
  <rect
    x="0"
    y="0"
    width="200"
    height="200"
    fill="url(#gradient)"
    style="filter: url(#componentTransfer2); transform: translateX(220px);" />
</svg>

Specifications

Specification
Filter Effects Module Level 1
# element-attrdef-fecomponenttransfer-intercept

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android
intercept 5 12 3 15 6 18 4 14 6 1.0 4.4

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https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/intercept