On Sun, Apr 26, 2015 at 1:45 PM, sturmflut <[email protected]> wrote: > Hi Thomas, > > > On 26.04.2015 06:20, Thomas Voß wrote: >> Hey all, >> >> thanks for the great script, I will make sure that we fold the color >> coding capabilities into the client executable of the location >> service. >> As far as I can see, "green" indicates that the snr exceeds a certain >> threshold (11 in the awk script). While snr is an interesting value, >> the more interesting information is "used_in_fix", "has_almanac_data" >> and "has_ephimeris_data". Even if multiple satellites are visible >> (with a sensible snr), only >> those for which almanac and ephimeris data is known are considered for >> calcucating the fix. http://en.wikipedia.org/wiki/Time_to_first_fix >> provides a good overview. >> >> With that, green should probably refer to satellites that have >> "used_in_fix" set to 1. >> >> The theoretical minimum for a first fix after cold start is 12.5 >> minutes, which is rarely the case and ttf usually takes longer in cold >> start scenarios. >> We take multiple measures to minimize this time, but it seems like we >> are experiencing issues in doing so. It would be really helpful if you >> could provide the output of: >> >> sudo GLOG_v=1000 GLOG_logtostderr=1 ubuntu-location-serviced-cli >> --bus system --test >> >> Feel free to share privately with me as the logs would reveal your >> position. Source for the test is in [1]. >> Please note that you should restart your device after the test has >> been completed. > > > Is there a way to directly talk to the location-service via D-Bus from > within a confined app? And if yes, what would the calls look like? I tried >
Sure, given that you have the right apparmor permissions and that a user accepted the trust prompt. If possible, please rely on: http://bazaar.launchpad.net/~phablet-team/platform-api/trunk/files/head:/include/ubuntu/application/location/ to interface with the location service. Cheers, Thomas > dbus-send --print-reply --type=method_call --system > --dest=com.ubuntu.location.Service /com/ubuntu/location/Service > org.freedesktop.DBus.Introspectable.Introspect > > on the phone but it just gives me an empty list of methods to call. > > I have to say that I'm not that good with D-Bus though :/ > > > kind regards, > Simon > > > > -- > Mailing list: https://launchpad.net/~ubuntu-phone > Post to : [email protected] > Unsubscribe : https://launchpad.net/~ubuntu-phone > More help : https://help.launchpad.net/ListHelp -- Mailing list: https://launchpad.net/~ubuntu-phone Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-phone More help : https://help.launchpad.net/ListHelp
