Hi Poutnik. Good list of definitions. Thanks. Paul W ========================
On Saturday, December 3, 2016 at 4:12:03 PM UTC, Poutnik wrote: > > You may mix the meaning of GPS and GPX. > You may also mix the meaning of GPS track and GPX track. > > GPS is a device aware of GPS guidance system ( whatever of used satellite > systems). > GPS is sometimes meant as a FPS aware smartphone application, able to > provide location and navigation. > > GPX is XML based open text data format to store POIs (waypoints, > favourites), routes and tracks. > Route = planned journey = is a list of ( usually sparse and important ) > start/destination and intermediate points and info for a navigating person , > later such a data for a GPS navigation application. > Track = record of passed journey = is a list of recorded passed positions, > along with timestamps and optionally additional data like altitude or > course. > > GPS track is real track in sense of recorded physical movement. > > GPX track MAY BE a real track in sense of recorded physical movement, > but as well it may be a route in sense of planned movement. > > Many planning application providing GPX file provide a detailed route, > that is formally, according to GPX specifications, track, > but semantically and by its usage a route. > > Like BRouter GPX, of GPX generated e.g. via MapQuest in Locus, > if exported from the Locus. > ( e.g. the average trackpoint distance of BRouter GPX is typically 50 m ) > > BTW, the MapQuest has very verbosely described > its navigation points. > > So one thing is internal format of the GPS file ( track vs route ) > Another thing is how it is created ( planning = route, recording - track ) > > > Dne 03/12/2016 v 16:48 Mo Re napsal(a): > > someone wrote this in another forum regarding a similar problem: > > "Maybe you already know this, but loading GPX files containing tracks is > not going to result in any device giving you turn by turn instructions. The > tracks are nothing more than breadcrumbs dropped on a map and the GPS has > no knowledge if you're following them or not. Tracks can be converted to > routes in Basecamp to get turn by turn guidance but I've never felt the > need to do that even having ridden many thousands of miles with track > guidance over the past couple of years. > > We rode over 6,000 miles of the TAT and over 2,000 miles of my own track > route from Georgia to NY - all just using tracks loaded in Garmin Zumo GPS > (actually BMW Nav IV and NAV V devices). > > Anytime you introduce routing/rerouting into your guidance you run the > risk of the GPS sending you somewhere other than where you precisely wanted > to be. You can fix that with via points but if your track-->route > conversion is for a long distance, that's going to be a lot of hassle to > check it all along the way. You'll have to decide for yourself if it's > worth it. > > I thought you CAN get turn by turn on a gps track??? > > > > On Sunday, November 27, 2016 at 2:20:27 PM UTC-5, Mo Re wrote: >> >> I must begin by saying I dug through the reviews and specs of a few >> android apps and tried to filter down to the best and this is the best >> imho. Only Backcountry navigator has more map options but it is more >> complex and will not do turn by turn routing at all. >> >> OsmAnd+ 2.4.7 android, navigation set to car and offline vector maps >> loaded of 2 states I was traveling. >> >> So I began a motorcycle trip yesterday morning by navigating to a gpx >> track I had imported. See attached. When I got close it started sending >> me around in circles?....one way then the next...it was soo strange....then >> it said "in 1 mile make a u-turn" when I could have done it right there as >> I was on a 20' wide gravel road???...then I ended up turning of turn by >> turn and following the dot to the the track line which was not precise and >> had be backtracking a few times for mised turns. >> >> 1. Is this just the fact that the gps track is using many dirt roads and >> not paved? >> >> 2. Is osmand just not good with turn by turn routing to an imported gpx >> track? >> >> 3. Is there other software, plugins or modes that can do this >> better???...I can live without the voice guidance if the display is correct >> in showing at least a rough estimate of how far to next turn and turn >> direction? >> >> 4. Is there anywhere that explains the other navigation services, ie >> YOURS, OSRM, Straight Line and if they are useful and work offline? >> >> tia, >> >> >> >> >> -- > You received this message because you are subscribed to the Google Groups > "Osmand" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > > > > -- > Poutnik ( The Wanderer ) > > My Brouter profiles https://github.com/poutnikl/Brouter-profiles/wiki > > -- You received this message because you are subscribed to the Google Groups "Osmand" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
