CameraControl.focusDistanceOptimum

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

Summary

The focusDistanceOptimum property value is the distance in meters where the subject appears sharpest.

Syntax

JavaScript
var optimum = instanceOfCameraControl.<code>focusDistanceOptimum</code>

Value

Return a number representing a distance in meters.

Example

JavaScript
var options = {
  camera: navigator.mozCameras.getListOfCameras()[0]
};
 
function onSuccess( camera ) {
  var optimum = camera.focusDistanceOptimum;

  console.log("The subject looks sharp at: " + optimum + "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

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/cameracontrol/focusdistanceoptimum

API B2G Camera camera Firefox OS Graphics JavaScript Property Reference Référence WebAPI