Am 11.03.2013 21:10, schrieb Sven Geggus:
Peter Körner <osm-li...@mazdermind.de> wrote:
what way would you choose and wich tools could be used to go that way?
Use the Water-Polygons from openstreetmapdata.com instead of land
polygons.
That's not that easy for the polar regions, because transforming the
splittet polygons to the destination projection results in gaps because
of straigt lines not beeing curved.
For the land there are complete polygons which are used on the
Antarctica map but there are no complete water polygons, because they
would be too complex (a huge polygon with 400.000+ holes).
So in order to get this right one would need to modify jochend
osmcoastline tool to support EPSG:3031 natively, to all corrdinates are
transformed before splitting and calculating the water polygons.
Peter
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