intercept - SVG: Scalable Vector Graphics 编辑

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

Four elements are using this attribute: <feFuncA>, <feFuncB>, <feFuncG>, and <feFuncR>

html, body, svg {
  height: 100%;
}

<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>

Usage notes

Specifications