Re: Spec is missing 'declination' - body's current pointing angle above horizon

Sorry for the spam...  :-)

Thanks for the clarification Andrei.

I think that the point is to find out if this information could be relevant
or not. The *azimuth* could be taken from the compass and the *elevation
angle* from the accelerometers. So it is something "cheap" to get.

As a comment, the BONDI interface draft contains this information as part of
the location object. In the Java world, the JSR293 defining the location API
also includes device orientation when available.

What do you think?

Angel

On Mon, Oct 13, 2008 at 4:04 PM, Andrei Popescu <andreip@google.com> wrote:

>
> Hi Angel,
>
> On Mon, Oct 13, 2008 at 3:45 PM, Machin, Angel, VF-ES (amachin)
> <angel.machin@vodafone.com> wrote:
> > Hi Mathew,
> >
> >
> >
> > Yes, it could be a good idea to have this additional variable that
> together
> > with the heading could be used to calculate a 3D vector corresponding
> with
> > the device's orientation.
>
> The existing "heading" property refers to the velocity. It has nothing
> to do with the orientation of the device, but it refers to the
> velocity of the device (i.e. direction of travel). Right now, the
> current API does not aim to provide device orientation information.
> IMHO, that is a different topic.
>
> All the best,
> Andrei
>
>