I'm trying to export all objects of East Kazakhstan region(as in image) from OSM file into separate pbf/osm file. What I'm trying to do is extract data from kazakhstan-latest.osm.pbf file by using osmconvert and osmfilter commands, but seems like it doesn't do what I would like to get.
After running the command:
./osmfilter kaz.o5m --verbose --keep="admin_level=4 and name=Восточно-Казахстанская\ область" -o=east2.osm
I see that my extracted file is only 3.1 Mb which is definitely small for such area.
-rw------- 1 sp sp 3.1M Aug 31 16:45 east2.osm
Answer
You ask osmfilter to keep everything that has admin_level 4 and a certain name. That is NOT everything inside that border line which you intend to get.
Instead, use osmconvert to clip to the region of interest from the .pbf file:
http://wiki.openstreetmap.org/wiki/Osmconvert#Clipping_based_on_a_Polygon
You need to convert the border (which you already have filtered) to polygon style with one of the softwares listed at http://wiki.openstreetmap.org/wiki/Osmosis/Polygon_Filter_File_Format#Converting_to.2Ffrom_POLY_format .
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