Gets the range for the field of view for the active sphere, passes it to the optional callback function (if provided), and returns it. |
See sendData for how to set these values.
Parameter:
callback (function): (OPTIONAL) A callback function to execute. It will be passed an object with the following attributes automatically:
cameraFovMin (number): The minimum valid field of view for the current sphere
cameraFovMax (number): The maximum valid field of view for the current sphere
Returns: A promise that resolves to the same object that is passed to the optional callback.