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I have OpenStreetMap data loading failure problem. I want to use the Download OpenStreetMap data tool in QGIS. I want to select the extent from map canvas like shown below:

enter image description here.

For me, the osm-data usually works when the data downloaded map was less then 1:160000 scale. But when it is bigger than 1:320000 scale (including 1:320000), QGIS always gets infinite loading circle rainbow (OS X user).

Does anyone have an idea on how to get it to work?

GIS Software : QGIS Hardware : Mac OS : OS X 10.9.2

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QGIS and the server behind Overpass API are not able to handle large area requests.

If you need that amount of data, think about

  • downloading pbf extracts from Geofabrik
  • filter the data for the items you really want with direct Overpass API calls
  • set up a local postgis database for your area of interest with a suitable Geofabrik extract
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  • As you told me about extracted pbf, I tried to load it by adding new vector layers but, it doesn't work with multi polygons, multilinestrings and lines. Any Idea ? Thanks for the answer though. – user28760 Apr 7 '14 at 7:34
  • Polygons are yet an issue, but lines should be imported. You have to select the layers you want by clicking them. Start with a small extract, as QGIS has to keep everything in RAM. Using a postgis database is the best way to get all polygons the way they are rendered in mapnik, even for larger areas. But I have no experience with Postgis on Mac. – AndreJ Apr 7 '14 at 8:15

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