[mkgmap-dev] dem-poly and precomp-sea

Thu Jan 11 12:48:55 GMT 2018

Hi Gerd,
I like the idea to have somehow a map polygone limiting or extending the
'background'-map (means DEM, sea, background poly). How about --map-polygon?

So if I got it right, this develloping will end in non-rectangle shaped
map tiles?
Henning

On 10.01.2018 16:54, Gerd Petermann wrote:
> Hi all,
>
> I think that the bounding polygon given with option --dem-poly should be also be used in the precomp-sea option,
> so that mkgmap doesn't generate sea polygons outside of the bounding polygon. With the current code a map of e.g.
> scandinavia looks strange, see attached picture.
>
> In a further step I should try to use that polygon also for the background polygon (0x4B) and other data.
> In a final step we might be able to use it for routing data so that you can split maps at left-driving / right-driving boundaries,
> but that needs more thinking.
>
> I've not coded anything yet, but I wonder if the option should be changed from dem-poly to e.g. --polygon-file or --bounding-polygon.
>
> Gerd
>
>
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