Re: [OSM-talk] Help to import Rio de Janeiro city data to O SM - misaligned shapefiles

[Jukka Rahkonen]

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@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk

Re: [OSM-talk] Help to import Rio de Janeiro city data to O SM - misaligned shapefiles

[Jukka Rahkonen]

Iván Sánchez Ortega ivan at sanchezortega.es writes:


 
 That magical conversion is called a Proj.4 string. Instead of letting 
 ogr2osm guess the projection, you can specify all of its parameters, 
 including a manual shift on the x, y and z axis.

Try with +proj=utm +zone=23 +south +ellps=GRS67+towgs84=-66.87,4.37,-38.52
Somebody in the internet has used it before
http://www.mundogeo.com.br/forum_mensagem.php?topico=1105

-Jukka Rahkonen-


___
talk mailing list
talk@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk