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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.

The DOMPointReadOnly interface specifies the standard properties used by DOMPoint to define a 2D or 3D point in a coordinate system.


Defined to create a new DOMPointReadOnly object, but note that this constructor cannot be called by 3rd party JavaScript: doing so returns an "Illegal constructor" typeError.


Translates the position/perspective of a DOMPoint to a new position (doesn't appear to be supported anywhere yet.)
Applies a matrix transform to a DOMPointReadOnly object (doesn't appear to be supported anywhere yet.)


DOMPointReadOnly.x Read only
The x coordinate of the DOMPoint.
DOMPointReadOnly.y Read only
The y coordinate of the DOMPoint.
DOMPointReadOnly.z Read only
The z coordinate of the DOMPoint.
DOMPointReadOnly.w Read only
The perspective value of the DOMPoint.


Specification Status Comment
Geometry Interfaces Module Level 1
The definition of 'DOMPoint' in that specification.
Candidate Recommendation Latest spec version is an ED.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support Not supported

Not supported

Not supported

Not supported
Feature Android Firefox Mobile (Gecko) Firefox OS (Gecko) IE Phone Opera Mobile Safari Mobile Chrome for Android
Basic support Not supported (Yes) Not supported Not supported Not supported Not supported Not supported


See also

Document Tags and Contributors

 Contributors to this page: rolfedh, chrisdavidmills
 Last updated by: rolfedh,