I am using this video to get 3d building from a openstreetmap:
It works great but the software http://osm2world.org/ does not work with large osm files… like a complete city.
Can you give me instructions to achieve my goal?
If you have other idea to get my goal I will really appreciate…
Use osmconvert with a bbox or polygon filter.
There is also a splitter program associated with mkgmap which will write out one osm file into several. Lastly osmosis can also process files into multiple files, but it can be a little more complicated to get working.