Freek
This sounds like an excellent project.
One thing you might consider as part of it is the use of relations for dual
carriageways. Currently, the two sides of a road are not connected in any
way. This gives Osmarender a problem because it will label both
carriageways with the same name and road number which is quite redundant. A
relation joining the two carriageways would enable the renderer to be a bit
smarter and only render one name instead of two.
Etienne
On Jan 31, 2008 6:59 PM, Freek <[EMAIL PROTECTED]> wrote:
> Hi,
> We (five CS students) are considering to do a small project for a course
> on
> (XML) databases around OSM data (approx. 15-20 effective hours/person). As
> a
> secondary goal, we'd like to be able to contribute something useful to
> OSM.
>
> The idea we have in mind at the moment is the following. As relations form
> a
> relatively new addition to OSM, we think it would be nice to add support
> to
> Osmarender for e.g. rendering motorway junction names at location hints
> [1].
> Because these relations are not yet widely used, we also want to develop a
> tool for automatically identifying the parts of a junction and create (/
> propose for human verification) relations representing complete junctions,
> including location hints.
>
> Especially in the Netherlands, all motorway junctions are present in the
> data
> set, but not in a useful form for rendering (often not even tagged with
> highway=motorway_junction). The (preliminary) aim of this project would
> then
> be to be able to render all junction names in the Netherlands nicely
> (later
> on, junctions in other countries will probably not be difficult to
> finish).
> This would then form a sort of case-study of the usefulness of relations
> for
> location hints in OSM and automating the process of adding them.
>
> Because of the project setting, we will use as much X{Query,Path,SLT} as
> possible :-)
>
> What do you think about the idea:
> - Is it realizable?
> - Is it useful?
> - Do you have a (probably completely different) suggestion within the
> scope of
> the project [2]?
>
> [1] http://wiki.openstreetmap.org/index.php/Relations/Proposed/Junctions
> [2]
> http://www.win.tue.nl/~tcalders/teaching/advancedDB/project.pdf<http://www.win.tue.nl/%7Etcalders/teaching/advancedDB/project.pdf>
>
> P.S. if we don't get comments, we'll probably just run the project along
> the
> lines described and see what comes of it :-)
> --
> Freek
>
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