CameraControl.focusDistanceFar Redirect 1

« DOM Reference

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

This API is available on Firefox OS for certified applications only.

Summary

The focusDistanceFar property value is a distance in meters used with CameraControl.focusDistanceNear to define the image's depth of field. The value for this property may be Infinity.

Syntax

var max = instanceOfCameraControl.focusDistanceFar

Value

Return a number representing a distance in meters. The value for this property may be Infinity.

Example

var options = {
  camera: navigator.mozCameras.getListOfCameras()[0]
};
 
function onSuccess( camera ) {
  var max = camera.focusDistanceFar,
      min = camera.focusDistanceNear;

  console.log("The image's depth of field is: " + (max-min) + "m");
};

navigator.mozCameras.getCamera(options, onSuccess)

Specification

Not part of any specification; however, this API should be removed when the WebRTC Capture and Stream API has been implemented.

See also

Document Tags and Contributors

 Last updated by: Sheppy,