Hi everyone.
I'm working on a 3D earth rendering engine and I want to use osm data
for forest, cities, roads, etc...
Of course it involves a lot preprocessing to filter and convert vector
data into OpenGL friendly format.
My plan is to :
- exploit a planet sized pbf file
- cut it into 1° tiles using osmosis
- filter and extract the data from these tiles as shapefiles using libosmium
- rasterize these shapefiles with gdal
My problem occurs when trying to cut the big PBF file into tiles.
I can't find an efficient way to prevent the elements from being clipped
on the edges of the tiles.
I've tried to use completeWays=yes and completeRelations=yes but the
first tile was still empty after a few hours when it took 6 minutes to
process it without these options.
The only way I can see to limit the damage is to set a wider bounding
box than necessary but there will always be a polygon bigger than my
margin that will be clipped, and the size of my tiles is also greatly
impacted.
Do you have any suggestion about this ?
Thanks.
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