[mkgmap-dev] [PATCH v1] Subdivision splitting

Thu Sep 15 19:54:46 BST 2011

> On Wed, Sep 14, 2011 at 08:21:16PM +0200, WanMil wrote:
>>> Unfortunately, this patch did not get rid of a warning that I have
>>> been getting for some time now:
>>>
>>> 2011/09/14 09:08:58 WARNING (Subdivision): 63240010.osm.pbf: Subdivision
>>> width is 36627 at 3231057/1236133
>>
>> Yes, that's a problem which is not yet addressed by the patch. I have
>> some ideas how to fix that but it probably will take some time...
>
> What are the potential implications of that problem? Will some polygon
> be omitted? Will routing be broken? Would it be possible to list the
> affected (or causing) OSM objects?

I don't know which implications that has. The width of the subdivision 
is too big for the zoom level and therefore the width is cut to 32767. 
So maybe some lines or shapes are not displayed that exceeds this width.
It is not possible to list the OSM objects because the OSM ids are not 
available at this point.

You might get rid of the error by splitting your tile at some point 
between longitude 1236133-36627/2 and 1236133+36627/2.

WanMil

>
> I tried splitting the tile into two:
>
> 63240010: 3067072,946400 to 3268608,1177712
> #       : 65.812225,20.307540 to 70.136719,30.234375
> 63240011: 3067072,1177712 to 3268608,1409024
> #       : 65.812225,20.307540 to 70.136719,30.234375
>
> but it did not make the warning go away:
> 2011/09/15 10:28:07 WARNING (Subdivision): 63240011.osm.pbf: Subdivision
> width is 36627 at 3231057/1236133
>
> Best regards,
>
> 	Marko