[mkgmap-dev] Lake Geneva

Tue Oct 11 23:04:51 BST 2016

Hi Steph,

my guess this is the problem of cutting data at the border.

Did you use some tools like osmosis with bounding polygon? It looks like 
the lake was cut with the border, but border is not added to polygon 
shape. There is straight line instead, which moves water on wrong side 
of coast line.

If you cut data with an option to preserve whole objects, then you will 
still get some problems, like for example whole lake but missing all 
data on an islands outside the border. The best solution I have found is 
to use bigger area (like full Europe in your case) and bounding polygon 
in splitter. This way you get all tiles filed with proper data, even 
outside bounding border.

-- 
Best regards,
Andrzej