CameraControl.zoom

Summary

The zoom property value is a number that defines the zoom factor that is to be used when taking photographs. When set, its new value must be chosen from the list of options specified by  CameraCapabilities.zoomRatios. If the new value is not one of those possible values, the new value is rounded to the nearest supported value.

Syntax

var zoomFactor = instanceOfCameraControl.zoom

Value

Returns a number representing the current scene mode. The default value is 1.

Example

var options = {
  camera: navigator.mozCameras.getListOfCameras()[0]
};
 
function onSuccess( camera ) {
  var zoomRatios = camera.capabilities.zoomRatios;

  if (zoomRatios !== null && zoomRatios.indexOf(2) > -1) {
    camera.zoom = 2;
  }
};

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

• CameraCapabilities
• CameraControl