SVGFEDropShadowElement: in1 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 in1 read-only property of the SVGFEDropShadowElement interface reflects the in attribute of the given <feDropShadow> element.

Value

An SVGAnimatedString object.

Examples

In this example, two <feDropShadow> elements are defined in a filter, each with a different in attribute.

html
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <filter id="drop-shadow-filter">
      <!-- First Drop Shadow applied to the SourceGraphic -->
      <feDropShadow
        in="SourceGraphic"
        dx="10"
        dy="10"
        stdDeviation="5"
        flood-color="red" />
      <!-- Second Drop Shadow applied to the BackgroundImage -->
      <feDropShadow
        in="BackgroundImage"
        dx="-10"
        dy="-10"
        stdDeviation="5"
        flood-color="blue" />
    </filter>
  </defs>
  <!-- Rectangle with red shadow -->
  <rect
    x="20"
    y="20"
    width="100"
    height="100"
    style="fill:red;"
    filter="url(#drop-shadow-filter)" />
  <!-- Circle with blue shadow -->
  <circle
    cx="100"
    cy="100"
    r="50"
    style="fill:blue;"
    filter="url(#drop-shadow-filter)" />
</svg>

We can access the in attribute:

js
const dropShadows = document.querySelectorAll("feDropShadow");

console.log(dropShadows[0].in1.baseVal); // Output: "SourceGraphic"
console.log(dropShadows[1].in1.baseVal); // Output: "BackgroundImage"

Specifications

Specification
Filter Effects Module Level 1
# dom-svgfedropshadowelement-in1

Browser compatibility

BCD tables only load in the browser

See also