Adam Franco
Adam Franco
Here's the "knock-out" type of casing in background color over water:  And here's with two different gray mid-tones: 
Even with the new code doing only the collecting step I ran into memory issues processing the[ japan file](http://download.geofabrik.de/asia/japan-latest.osm.pbf) (which incidentally doesn't have any sub-regions available) using my [CurvatureBuilder pipeline](https://github.com/adamfranco/CurvatureBuilder/blob/master/bin/process_newer#L120-L126):...
Another alternative is that the coords could be added as a second step. It would still need to load many full collections into memory, but that could make the batching...
Hi Eric, good find on `osmconvert`, that takes some of the pressure off of the absolute performance of curvature. I wonder if there is any benefit in terms of which...