On 4/3/2015 9:44 AM, Sandor Seres wrote:
The OSM planet-land is created from the coastline dataset. From time
to time it might be reasonable to use the inverse of it, the
planet-sea, or even both of them. But, creating the planet-sea is not
just a simple exercise. Here is one model/option in bullets how this
can be done efficiently.
OSMCoastline generates water polygons, and these are available at
http://openstreetmapdata.com/data/water-polygons
What isn't generated is simplified water polygons, which are important
for low-zoom.
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