[mkgmap-dev] New locator branch

Thu Mar 17 20:28:53 GMT 2011

WanMil schrieb am 17.03.2011 21:12:
> I observed that a lot of admin_level boundaries (2,3,4,5 and sometimes
> 6,7,8,9,10,11) are not useable because they are not completely contained
> in the tile data. The polygons are closed automatically but this is only
> a good guess in which direction they have to be closed. The probability
> is quite high that they are closed in the wrong direction.

Moin,

just as an idea: How about collecting the is_in data of the objects and trying
to use this data for recovering the missing boundary information?

If you have some is_in data points inside of an area, then the is_in data should
(mostly) match the boundary data. For an unclosed boundary this could be used
for guessing, to which side of the boundary it is relating to. And for a
boundary completely surrounding the tile, this could be used to provide the
missing information.

Gruss
Torsten