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[mkgmap-dev] patch for crash in MapSource

From Gerd Petermann gpetermann_muenchen at hotmail.com on Thu Feb 8 09:27:19 GMT 2018

Hi all,

okay, thanks for testing. I'll try to find a better patch.
Please check: I think the patch works fine for routes which cross tile borders in horizontal direction
direction but I still see problems with vertical crossing. Can you confirm that?


Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Henning Scholland <osm at hscholland.de>
Gesendet: Donnerstag, 8. Februar 2018 09:59
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] patch for crash in MapSource

Same for me, but just did quick test. Will try on the weekend more detailed
On 8 Feb 2018, at 16:57, lig fietser <ligfietser at hotmail.com<mailto:ligfietser at hotmail.com>> wrote:

Hi Gerd,

I tested your patch but I still see frequent crashes near tile borders.

Van: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> namens Gerd Petermann <GPetermann_muenchen at hotmail.com>
Verzonden: woensdag 7 februari 2018 02:45:27
Aan: mkgmap-dev at lists.mkgmap.org.uk
Onderwerp: [mkgmap-dev] patch for crash in MapSource

Hi all,

attached is a patch that seems to help in many cases where --dem-poly causes crashes in MapSource "Show Profile..."
A binary is here:

It changes the TRE file and the *.tdb file.
I still see a few crashes but maybe those are caused by other problems.

Please try and let me know your results. I found no bad impact so far,
long distance routing still seems to work, but I've not tested much.

@Steve: Maybe we have to make sure that the areas in *.tdb do not overlap.
In this case this patch is not yet okay.



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