Re: [OSM-talk] GPX trace vandalism?
Richard Fairhurst systemed.net> writes: > > > Tanveer Singh wrote: > > Okay, I enabled just my track, and at one point, its done the same > > even with my track. > > If you post the URL of your track, we can tell you what's wrong with it. > > cheers > Richard I can even have a look at the original OziExplorer file with Ozi and GPS Trackmaker programs if needed. I am using both of them myself. You may know that you can get OpenStreetMap maps into Ozi rather simply with NoniMap View program http://aeguerre.free.fr/Public/Windows/NoniMapView/EN/ ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] GPX trace vandalism?
Tanveer Singh wrote: > Okay, I enabled just my track, and at one point, its done the same > even with my track. If you post the URL of your track, we can tell you what's wrong with it. cheers Richard -- View this message in context: http://www.nabble.com/Re%3A-GPX-trace-vandalism--tp22157120p22160485.html Sent from the OpenStreetMap - General mailing list archive at Nabble.com. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] GPX trace vandalism?
Tanveer Singh wrote: > Okay, I enabled just my track, and at one point, its done the same > even with my track. Well its dumped from oziexplorer, and shows up > perfectly well on my PC GPSTRACKMAKER etc., > Now Oziexplorer and many other programs have this auto trackpoint > dump. So if you travel in an arrow straight line , you will just get 2 > points. These may be spaced apart by more than 3 minutes. > Can't OSM just intelligently join the tracks like GPS trackmaker etc., do. > This is a big nuisance. Many times while logging, I may park car, > switch off GPS, and go out for 30 minutes. When I come back I will > turn it back on, and gps will start writing track from where I left > off. Moreover, if I am in a big traffic jam on a straight road, I may > not get points every three minutes. I have been stuck at same location > without moving an inch for 15 minutes on occaisons. Yes we have > traffic jams so bad. I guess why New Delhi area is such a mess when it > comes to GPS tracks. I guess some fundamental change has to be done in > Poltach software so that it does not ruin things like this! I think you're misunderstanding. All that will happen if you have a gap of more than three minutes is that those two points won't be joined up. What you are seeing is what happens when you have two points in your trace which are a long way apart physically but close together (less than three minutes) in time. Which suggests that the timestamps in the trace are not correct. I expect the other application you are using is using the order of the points in the trace as the order in which to draw them but we don't import that information so we only have the timestamp to go on. Tom -- Tom Hughes (t...@compton.nu) http://www.compton.nu/ ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] GPX trace vandalism?
On Mon, Feb 23, 2009 at 2:56 PM, Richard Fairhurst wrote: > > Tom Hughes wrote: >> That said, my understanding is that Potlatch puts a break in the >> track whenever there is a jump in the timestamp. Richard can >> probably explain in more detail what it does. > > (Oooh, look at all that lovely untraced Yahoo imagery...) > > Yep. Potlatch connects points, breaking whenever there's a time difference > of 3 minutes or more. > > It works very nicely if you have a "natural" GPS track, but can foul up when > someone, say, uploads a track with faked timestamps all the same. Please, > people, if you're going to fake your timestamps, do something like make them > ascend at 1s intervals from 1st June 1970 or something. Okay, I enabled just my track, and at one point, its done the same even with my track. Well its dumped from oziexplorer, and shows up perfectly well on my PC GPSTRACKMAKER etc., Now Oziexplorer and many other programs have this auto trackpoint dump. So if you travel in an arrow straight line , you will just get 2 points. These may be spaced apart by more than 3 minutes. Can't OSM just intelligently join the tracks like GPS trackmaker etc., do. This is a big nuisance. Many times while logging, I may park car, switch off GPS, and go out for 30 minutes. When I come back I will turn it back on, and gps will start writing track from where I left off. Moreover, if I am in a big traffic jam on a straight road, I may not get points every three minutes. I have been stuck at same location without moving an inch for 15 minutes on occaisons. Yes we have traffic jams so bad. I guess why New Delhi area is such a mess when it comes to GPS tracks. I guess some fundamental change has to be done in Poltach software so that it does not ruin things like this! ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] GPX trace vandalism?
Tom Hughes wrote: > That said, my understanding is that Potlatch puts a break in the > track whenever there is a jump in the timestamp. Richard can > probably explain in more detail what it does. (Oooh, look at all that lovely untraced Yahoo imagery...) Yep. Potlatch connects points, breaking whenever there's a time difference of 3 minutes or more. It works very nicely if you have a "natural" GPS track, but can foul up when someone, say, uploads a track with faked timestamps all the same. Please, people, if you're going to fake your timestamps, do something like make them ascend at 1s intervals from 1st June 1970 or something. Anyway, if you want to see just your own points in Potlatch, simply shift-click the GPS icon. cheers Richard -- View this message in context: http://www.nabble.com/Re%3A-GPX-trace-vandalism--tp22157120p22157981.html Sent from the OpenStreetMap - General mailing list archive at Nabble.com. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] GPX trace vandalism?
Tanveer Singh wrote: > Apparently, if you load multiple tracks under one file OSM connects > the end points which leads to the weirdness I am seeing. Can somebody > tell me if its possible just to view my tracks in poltach? I think you mean Potlatch connects them - other clients are not in fact able to do so even if they wanted to. That said, my understanding is that Potlatch puts a break in the track whenever there is a jump in the timestamp. Richard can probably explain in more detail what it does. Tom -- Tom Hughes (t...@compton.nu) http://www.compton.nu/ ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] GPX trace vandalism?
I think this should go to main talk list. Apparently, if you load multiple tracks under one file OSM connects the end points which leads to the weirdness I am seeing. Can somebody tell me if its possible just to view my tracks in poltach? On Sun, Feb 22, 2009 at 7:07 PM, Tanveer Singh wrote: > I decided to do some mapping, and since I had taken a GPS trace, I > decided to turn it on. And whoa. It was craziness. It appeared that > traces had been drawn by flying over the city > Look here > http://www.openstreetmap.org/edit?lat=28.5753&lon=77.3342&zoom=14 > Its impossible to do anything with such traces. > Is there a way to see only your traces, and turn off everybody elses? > ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
