[mkgmap-dev] patch for crash in MapSource

Thu Feb 8 19:11:04 GMT 2018

Hi Nick,

great! In my test cases I found problems with long distance routes without any stopover.
Please try that as well, maybe also the inverse routes.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von osm at pinns <osm at pinns.co.uk>
Gesendet: Donnerstag, 8. Februar 2018 19:01
An: mkgmap-dev at lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] patch for crash in MapSource

Hi Gerd

Brilliant ! have done a really spaghetti route with lots of ups and downs left and right and

seems to be working with align-for-dem=360  and even

--dem-dists=2484,3312,9942,16560

r

Nick

On 08/02/2018 17:40, Gerd Petermann wrote:

Hi all,

I've created patches for splitter and mkgmap.
The binaries are here:
 http://files.mkgmap.org.uk/download/417/splitter.jar
http://files.mkgmap.org.uk/detail/416

Please try splitter with align-for-dem=360. I found no more crashes as long
as used only one dem level, e.g. dem-dists=3312 or dem-dists=9936

Maybe you find a combination of  align-for-dem and dem-dists with more than one value
that still works, I'll try again tomorrow.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Gerd Petermann <gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com>
Gesendet: Donnerstag, 8. Februar 2018 13:16
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] patch for crash in MapSource

Hi all,

the patch contained a stupid bug, but there is more to this:
1) the effect of the patch depends on the dem-dists value (I assume only the one
that gives the highest resolution). The higher the resolution the better it works.
2) it probably also depends on the boundaries (areas.list)

I assume now that the tile boundary from areas.list should be a certain multiples of degrees,
probably different multiples for lat and lon and that the overlap simply makes
sure that this boundary is within the overlapped area.
Maybe the preferred multiples also depend on the dem-dist.

I'll try to find out more ...

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von osm at pinns <osm at pinns.co.uk><mailto:osm at pinns.co.uk>
Gesendet: Donnerstag, 8. Februar 2018 10:33
An: mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk>
Betreff: Re: [mkgmap-dev] patch for crash in MapSource

Hi Gerd

I think you are right ,ie

start and finishing point  at same level seems OK eventhough the route
turns south 20miles then up again

r

Nick

On 08/02/2018 09:27, Gerd Petermann wrote:

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?

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Henning Scholland <osm at hscholland.de><mailto: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
Henning
On 8 Feb 2018, at 16:57, lig fietser <ligfietser at hotmail.com<mailto:ligfietser at hotmail.com><mailto: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><mailto:mkgmap-dev-bounces at lists.mkgmap.org.uk> namens Gerd Petermann <GPetermann_muenchen at hotmail.com><mailto:GPetermann_muenchen at hotmail.com>
Verzonden: woensdag 7 februari 2018 02:45:27
Aan: mkgmap-dev at lists.mkgmap.org.uk<mailto: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:
http://files.mkgmap.org.uk/download/414/mkgmap.jar

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.

Gerd

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