[Freegis-list] Project: Street mapping using GPS data

[Nils Faerber]

Am Fr, den 21.05.2004 schrieb Amaury Jacquot um 13:53:
> Nils Faerber wrote:
> > Hello all!
> Hi nils
Hi!

> > What I want to do is to start an open project to create street maps. I
> > intended to use GPS data as base for the maps since GPS devices have
> > become such cheap and many users can afford one - subsequently there are
> > many potential contributors out there.
> Such a project is already underway.
> it's called NavSys, you can find it at http://www.navsys.org
> chat server is at irc.freedesktop.org channel #navsys

I found that already but thought it to be more or less dead, sorry ;)
The last version of navsys is somewhat old (I think over a year). But I
also saw that the mapedit program is more recent, yes.

> > What I am looking for are software tools to create decent maps from
> > those GPS tracks. What is needed is a quite comfortable tool to first
> > import the GPE/NMEA data into some GIS application. From my research I
> > found that maybe GRASS could be a potential target - though GRASS seems
> > quite complex to use. The next thing that needs to be done is editing
> > and annotation, maybe Thuban can be used for parts of this. The tracks
> > have to be split into seperate streets and the streets have to be
> > identified and annotated. And last but not least the resulting data has
> > to be pretty-printed so that a user can finally use those resulting
> > maps.
> it doesn't do all that yet, but I'll gladly accept some help

Maybe you could describe your intention a little!?
Especially the intentions you have for mapedit.
I qm questioning myself what would be more feasable, to use the already
existing tools like GRASS and GMT or to write a completely new software?

BTW: I wasn't able to compile mapedit ... it complained about some
strange GtkToggleTool-something ... I'll send you the output off-list
later...

> > Lot of stuff!
> > And above all a colaborative method has to be found so that users can
> > contribute GPS recorded tracks in a manner so that an already recorded
> > street is not added twice to the resulting database - the second
> > reconrding could be used to achieve a higher accuracy?
> that's being thought on

To what respect?

> > I would like to start the whole project by making myself more familiar
> > with the whole GIS and mapping system. I have to admit that I know how
> > to operate my GPS but know almost nothing about GIS. What I do know
> > quite a bit about is (system) programming. I could offer to create the
> > data aquisition application, i.e. a nice user friendly frontend
> > application that records GPS tracks in a certain format for various
> > devices - PDAs, notebooks, etc.
> A PDA based app adapted from the navsys code would be nice

That shouldn't be that difficult since you luckily used GTK+ ;)
We are mostly using GPE
	http://gpe.handhelds.org
here which is also X11 and GTK+ based for PDAs, a project we started
about two years ago and has developed quite nicely since then!

> > In some years we might be able to have a decent street map set for
> > several countries and maybe one day an opensource navigation software. I
> > am willing to spend my spare time on writing software for the areas I
> > have some expertise with and to contribute my GPS data.
> > But I need help for the GIS part.
> see you soon

:)

CU
  nils faerber

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