Hi Andrzej,

I also think that it could be related to the alignment of DEM tiles.

I think the problem is not (only) related to dem-polygon, you should be able to 
reproduce
it when you change line 109 in DEMSection.java from
                boolean hasExtra = false;
to
                boolean hasExtra = true;


The polygon handling simply forces that this variable is set to true
and when this happens I see the crashes, although it only changes the size of 
the header info.

I'll prepare a test set tomorrow.

Gerd


________________________________________
Von: mkgmap-dev <mkgmap-dev-boun...@lists.mkgmap.org.uk> im Auftrag von Andrzej 
Popowski <po...@poczta.onet.pl>
Gesendet: Freitag, 2. Februar 2018 22:14
An: mkgmap-dev@lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] My findings about the crash in MapSource

Hi Gerd,

maybe this is a problem of overlapping of DEM form different tiles? Or
maybe size of DEM area is calculated incorrectly?

Could you upload an example? I haven't used dem-poly on my maps and
never noticed this problem.

--
Best regards,
Andrzej
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