SVGFEDropShadowElement: setStdDeviation() method

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 setStdDeviation() method of the SVGFEDropShadowElement interface sets the values for the stdDeviation attribute.

Syntax

js
setStdDeviation(x, y)

Parameters

x

A float representing X component of the stdDeviation attribute.

y

A float representing Y component of the stdDeviation attribute.

Return value

None (undefined).

Examples

Using setStdDeviation()

In this example, we set the horizontal and vertical standard deviations for a blur operation for a <feDropShadow> filter shadow effect using the setStdDeviation() method of the SVGFEDropShadowElement interface.

html
<svg height="200" width="200" viewBox="0 0 200 200">
  <defs>
    <filter id="drop-shadow-filter">
      <feDropShadow
        in="SourceGraphic"
        dx="10"
        dy="10"
        stdDeviation="5 5"
        flood-color="gray" />
    </filter>
  </defs>

  <!-- Rectangle with an initial gray shadow -->
  <rect
    x="50"
    y="50"
    width="100"
    height="100"
    style="fill:red;"
    filter="url(#drop-shadow-filter)" />
</svg>

<!-- Button to update the shadow -->
<button id="updateShadow" type="button">Update Shadow</button>
js
// Get the feDropShadow element
const dropShadow = document.querySelector("feDropShadow");

// Button to trigger the update
document.getElementById("updateShadow").addEventListener("click", () => {
  // Change the standard deviation (blur radius) of the shadow
  dropShadow.setStdDeviation(15, 20);
});

Click on the red rectangle to update the drop shadow's blur effect.

Specifications

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

Browser compatibility

BCD tables only load in the browser

See also