[OSM-talk] Help to import Rio de Janeiro city data to OSM - misaligned shapefiles

[Arlindo Pereira]

Hi,

in the end, after searching for a couple of hours, I managed to split a
little part of the 400MB file and open it on JOSM to take a look:

$ java -Xmx1048m -cp "osmosis-0.35/osmosis.jar:osmosis-0.35/lib/default/*"
org.openstreetmap.osmosis.core.Osmosis --read-xml-0.5 enableDateParsing=no
file=Quadras.osm --migrate --bounding-box top=-22.92297 left=-43.18026
bottom=-22.92849 right=-43.17241 completeWays=yes completeRelations=yes
--write-xml file=teste-catete.osm

As expected, it's a file with the blocks ("quadras") structure. How do you
think it could be imported into OSM, if useful at all? I mean, we map roads
and the buildings that are on the blocks, but not the blocks itself. Just to
exemplify, a place near of where I live:

http://osm.org/go/OVc0m5mwC--

And what the shapefile provided me:

http://img175.imageshack.us/img175/2793/capturadetelajavaopenst.png

Perhaps if I manually import those polygons to OSM with some
landuse=residential|comercial tag and draw roads between them manually? Any
ideas?

Thank you guys, you're helping a lot. I'm very thankful and hopeful we will
have a good and free map of Rio soon. :)

Cheers,
Arlindo Pereira

2010/5/22 François Van Der Biest <francois.vanderbiest at camptocamp.com>

> Hi all,
>
> I'd recommend having a look at this automated road selection process
> before hand selecting features to import :
> http://wiki.openstreetmap.org/wiki/BMO#Differential_import
>
> If needed, I can provide help, since I'm the one who wrote the page.
>
> F.
>
> On Sun, May 16, 2010 at 4:49 PM, Jukka Rahkonen
> <jukka.rahkonen at latuviitta.fi> wrote:
> > Arlindo Pereira <openstreetmap <at> arlindopereira.com> writes:
> >
> > ...
> >>
> >> Now, moving on to the second question: the largest shapefile
> >> (Quadras.shp, with the streets and the blocks) has 68 MB, and after
> >> conversion (and two hours later) it becomes a huge 416 MB .osm file,
> >> and I can't open it with JOSM (ok, after half an hour it loads up on
> >> the editor but I can't do anything because the program freezes). How
> >> can I split it in smaller files for an easier edition?
> >
> > One possibility is to edit the shapefile with some GIS program like
> OpenJUMP or
> > QGis, select features from a smaller area and save that part to a new
> shapefile.
> > That way you could also select only some kind of features to import, or
> cut off
> > those you do not want at all.
> >
> >
> > _______________________________________________
> > talk mailing list
> > talk at openstreetmap.org
> > http://lists.openstreetmap.org/listinfo/talk
> >
>
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