[mkgmap-dev] White stripes in the sea

Wed Jan 2 16:50:02 GMT 2013

Marko Mäkelä wrote
> On Wed, Jan 02, 2013 at 06:24:17AM -0800, GerdP wrote:
>>Are these errors normal?
> 
> I would say yes. When using generate-sea=polygons, mkgmap will make a 
> 'jigsaw puzzle' around each island in the natural=coastline polygon, 
> using horizontal and vertical lines. Perhaps it could try to minimize 
> the length of the lines, by using diagonal lines, attaching the islands 
> to each other as a tree or graph, instead of attaching each island to 
> the coastline.

oh, yes, I see this also in the precompiled sea tiles. It tends to creates 
ways that describe thin areas. Any rounding of these thin areas can 
lead to empty areas which are then thrown away. I'll try to find a 
better solution for that.

Gerd 

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