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

[Henrion Benjamin]

Tamas Decsi <tamas at pressflex.com> [040521]:
> 
> Hello Nils,
> 
> just to let you know you're not alone: I'm doing a street map for
> Budapest, Hungary. So far I'm using my own set of GPS tracks collected,
> and it covers some 6% of the approx 7500 streets here. I've also done
> a minimalistic app in python/gtk to postprocess tracks, since I've found
> GRASS to be too complex and less handy for my yet simple purposes.
> 

I think the best way to start such collaborative project is throught the
web.

Like:

1. Upload your GPE/NMEA files
2. GPE/NMEA -> SVG
3. Display SVG map
4. Comment SVG map
5. PNG rasterisation through Batik or other
6. SVG Mapserver integration
7. (GRASS backend)

Do we have tools for the point 2?

I want to do it for Brussels, maybe in dGPS.

Can someone succeed in compiling Mozilla with native SVG?

> On Fri, 21 May 2004, Nils Faerber wrote:
> 
> > Hello all!
> > I am new to the list so please excuse if this already became an FAQ... I
> > read the FAQs, HowTos and docs I was able to find on the net but did not
> > come to any conclusion, so I am asking here now.
> >
> > 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.
> >
> > 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.
> >
> > 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?
> >
> > 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.
> > What I need help with, at least in form of hints, is the GIS system,
> > i.e. how to import the GPS data in a system like GRASS, how to
> > postprocess it and how to generate some form of map from it.
> >
> > The result could become a community effort and project. I do intend
> > (take this as my word and promise) to make this like an opensource
> > project, i.e. have users contribute GPS data, help annotate, etc. and
> > make the result available to the community again. All software sources
> > and all intermediate data should also be open to all interested users
> > under a free license.
> > 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.
> >
> > At the moment I want to investigate the feasability of such a project.
> > If anyone here on the list is interested in such a project you are
> > absolutely welcome to contact me by personal email or, if the others of
> > the list agree, discuss such a project here on the list. I am open to
> > any suggestion!
> >
> > If this idea has already been discussed, please excuse my ignorance and
> > point me to some archive of that discussion.
> >
> > Having said all this (already too much :) thanks for reading that far!
> > Looking forward to your suggestions, ideas and comments!
> >
> > CU
> >   nils faerber
> >
> > --
> > kernel concepts          Tel: +49-271-771091-12
> > Dreisbachstr. 24         Fax: +49-271-771091-19
> > D-57250 Netphen          Mob: +49-176-21024535
> > --
> >
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-- 
Benjamin Henrion <bh at udev.org>
http://bh.udev.org