Web/API/PointerEvent/tangentialPressure

The tangentialPressure read-only property of the PointerEvent interface represents the normalized tangential pressure of the pointer input (also known as barrel pressure or cylinder stress).

Syntax

var tanPressure = pointerEvent.tangentialPressure;

Return value

A float representing the normalized tangential pressure of the pointer input in the range -1 to 1, inclusive, where 0 is the neutral position of the control.

Note that some hardware may only support positive values in the range 0 to 1. For hardware that does not support tangential pressure, the value will be 0.

Example

In this snippet, when a pointerdown event is fired, different functions are called depending on the value of the event's tangentialPressure property.

someElement.addEventListener('pointerdown', function(event) {
  if (event.tangentialPressure == 0) {
    // No pressure
    process_no_tanPressure(event);
  } else if (event.tangentialPressure == 1) {
    // Maximum pressure
    process_max_tanPressure(event);
  } else {
    // Default
    process_tanPressure(event);
  }
}, false);

Specifications

Specification	Status	Comment
Pointer Events – Level 2The definition of 'tangentialPressure' in that specification.	Recommendation

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`tangentialPressure`	Chrome Full support 58	Edge Full support 79	Firefox Full support 59 Full support 59 Full support 54 Disabled' Disabled' From version 54: this feature is behind the `dom.w3c_pointer_events.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 45	Safari Full support 13	WebView Android Full support 58	Chrome Android Full support 58	Firefox Android Full support 54 Disabled' Full support 54 Disabled' Disabled' From version 54: this feature is behind the `dom.w3c_pointer_events.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	Opera Android Full support 43	Safari iOS Full support 13	Samsung Internet Android Full support 7.0

Legend

Full support: Full support
No support: No support
User must explicitly enable this feature.': User must explicitly enable this feature.