[mkgmap-dev] multipolygon support?

Sat Sep 12 23:30:51 BST 2009

this branch fixes the polygon in one tile. big improvement!
here is a tricky small example where it still fails when split into 2  
tiles.
http:/apo42.dyndns.org/shastalake.tgz
I thin the problem is that mkgmap doesn't get the whole polygon. Since  
a multipolygon member must not have a direction like a coastline this  
seems pretty difficult to resolve.
Maybe it's easier to improve the splitter to keep all members of a  
multipolygon relation.

--
apo

On 12 Sep 2009, at 11:42 , Steve Ratcliffe wrote:

>
> Hi
>
> On 10/09/09 05:04, Apollinaris Schoell wrote:
>> I have a large lake with a relation connecting all ways together. It
>> seems mkgmap creates a polygon for each of the ways by connecting
>> start and end together.
>> Do we have support for multipolygons. In this case 2 arms of the lake
>> cross the tile boundary. the 2 arms are rendered correct in the next
>> tile but the main part of the lake is a complete mess. it looks like
>> the relation is completely ignored.
>
> There is support for multi-polygons.  There is much better version
> in the multipolygon branch with loads of fixes.
>
> I think that has had some reasonable testing so I shall merge the
> multipolygon fixes to trunk.
>
> ..Steve
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev