Also, and I've already posted here about that a while ago, it would
really help if hdop, and eventually vdop, wasn't lost in the
anonymization process. This is an important data when tracing, but
unless you know who published the track and you can download the
source, you don't have access
--- On Tue, 28/7/09, René Affourtit wrote:
> Maybe it's an idea to allow users to specify an area where
> traces are outdated?
>
> So when a junction is reconstructed a local user can place
> a bounding
> box over that junction and all GPS points in that box are
> marked as
> outdated (or delet
--- On Tue, 28/7/09, Maarten Deen wrote:
> That is not indicative. A road could remain unchanged for
> the last 100 years
> or could have been demolished last year. What would be the
> expiration time of
> a track? And would you be prepared to lose correct GPS data
> to do this?
Also as Liz put,
John Smith wrote:
>
> --- On Tue, 28/7/09, Maarten Deen wrote:
>
>> But there is no way to determine if a particular GPS track
>> is outdated. Sure,
>> you can look at the map and say "I don't see a physical
>> road for this track",
>> but how would you identify GPS points of a track that is
>> in
--- On Tue, 28/7/09, Simone Cortesi wrote:
> I'm talking in the long run. Not something to be done in
> the coming
> moths. Still we are just 5 years old. And not many roads
> did change
> shape in this short period of time.
Some areas have lots of road duplication construction within 5 years o
Hello !
One think I think it can be useful is a tool for editing all our old trace :
- easy to download all our trace
- easy to remove unprecise segment (in some old my trace I have some
segment who is 50 m wrong !)
- easy to simplify them
- easy to re-upload modified trace !
I think that a tool
On Tue, Jul 28, 2009 at 09:58, John Smith wrote:
>> consider having access to older data in separate sets if
>> there is concern
>> about using old gps tracks, just don't drop any because it
>> is "old" (like some
>> of us)
> Maybe the best option is to let people stipulate how many traces they wa
On Tue, Jul 28, 2009 at 09:59, John Smith wrote:
>
> --- On Tue, 28/7/09, Simone Cortesi wrote:
>
>> GPS are becoming more precise. older tracks are, on a
>> general basis,
>
> You can't make assumptions of the quality of the data based simply on how
> recently it was added, someone might be usin
This doesn't make sense to me.
At least there should be a timestamp of gpx-files which
tells us when they've been uploaded so that one could filter them
a la "show me gpx-files not older than 3 years" !
Roman
> On Tue, Jul 28, 2009 at 5:22 AM, Aleksejs Mjaliks wrote:
>> Does OSM invalidates GPS d
--- On Tue, 28/7/09, Simone Cortesi wrote:
> GPS are becoming more precise. older tracks are, on a
> general basis,
You can't make assumptions of the quality of the data based simply on how
recently it was added, someone might be using an old piece of GPS kit they were
given as a hand me down
--- On Tue, 28/7/09, Liz wrote:
> please , don't drop data
> for many areas we are lucky to have one trace and it may be
> a year or more
> before another mapper goes back there
>
> consider having access to older data in separate sets if
> there is concern
> about using old gps tracks, just
--- On Tue, 28/7/09, Maarten Deen wrote:
> But there is no way to determine if a particular GPS track
> is outdated. Sure,
> you can look at the map and say "I don't see a physical
> road for this track",
> but how would you identify GPS points of a track that is
> invalid? Especialy
> for the a
On Tue, 28 Jul 2009, Simone Cortesi wrote:
> >> Does OSM invalidates GPS data after some time? Otherwise, roads
> >> continuously changes and after we will have a big cloud of points that
> >> don't make any sense.
> >
> > No, it doesn't. GPX tracks stay where they are forever and continue
> > bein
Simone Cortesi wrote:
> On Tue, Jul 28, 2009 at 09:21, Ævar Arnfjörð Bjarmason
> wrote:
>
>>> Does OSM invalidates GPS data after some time? Otherwise, roads
>>> continuously changes and after we will have a big cloud of points that
>>> don't make any sense.
>> No, it doesn't. GPX tracks stay where
On Tue, Jul 28, 2009 at 09:21, Ævar Arnfjörð Bjarmason wrote:
>> Does OSM invalidates GPS data after some time? Otherwise, roads
>> continuously changes and after we will have a big cloud of points that
>> don't make any sense.
> No, it doesn't. GPX tracks stay where they are forever and continue
On Tue, Jul 28, 2009 at 5:22 AM, Aleksejs Mjaliks wrote:
> Does OSM invalidates GPS data after some time? Otherwise, roads
> continuously changes and after we will have a big cloud of points that
> don't make any sense.
No, it doesn't. GPX tracks stay where they are forever and continue
being serv
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