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[mkgmap-dev] My findings about the crash in MapSource

From Gerd Petermann gpetermann_muenchen at hotmail.com on Fri Feb 2 21:27:35 GMT 2018

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;
                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.


Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej at poczta.onet.pl>
Gesendet: Freitag, 2. Februar 2018 22:14
An: mkgmap-dev at 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,
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mkgmap-dev at lists.mkgmap.org.uk

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