[OSM-dev] AND data integration
Stefan de Konink
skinkie at xs4all.nl
Wed Jul 18 15:29:21 BST 2007
On Wed, 18 Jul 2007, Sander Hoentjen wrote:
> Now if someone can please alter my time estimates where they are incorrect
> (read as everywhere). :)
Now we have data, we should also create a validator tool, in order to
match traces that are into the OSM database (raw GPS points) to the AND
data. If these GPS points (yes we probably need new data with PDOP
quality) are outside a general variance for a particular type of road it
should be marked for an update.
A simple algorithm could line up GPS raw points + existing roads. Usefull
for a new 'routing' application too.
This is an application that should be made to make it easy for maintaining
maps.
My suggestion would be to create a merging application that is based on
the 'Name' (and/or 'Ref') tags. Calculate differences and if they are in a
certain treshold the way can be merged. Doing this will make it easy to
merge non-existing ways in OSM. And visa versa. Another tool should walk
over the map to check if there are overlapping crossings. Boundingbox task
that could be interesting for further map integrity.
If it has a smart implementation it will *not take* n^n ;)
Stefan
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