[mkgmap-dev] Problem writing line ...

Thu Jun 10 17:45:10 BST 2021

Hi Gerd

I think you patch is the best solution. I was worried that it would
interfere with the subdiv/area sizing rules when --order-by, which does
allow very slightly oversized polgons, but these are never big enough
to cause the next level down to exceed MAX_DIVISION_SIZE.

Ticker

On Thu, 2021-06-10 at 11:56 +0100, Ticker Berkin wrote:
> Hi Gerd
> 
> OK - I get the problem now, it was --order-by that stopped it
> happening. I think this oversize polygon should have been handled by
> MapArea and the maxSize/maxWidth/maxHeight limits and I'm now trying
> to
> work out why it isn't.
> 
> Ticker
> 
> 
> On Thu, 2021-06-10 at 10:19 +0000, Gerd Petermann wrote:
> > Hi Ticker,
> > 
> > I got this with trunk and no options, just -ea is important.
> > 
> > Gerd
> > 
> > ________________________________________
> > Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
> > von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
> > Gesendet: Donnerstag, 10. Juni 2021 12:07
> > An: Development list for mkgmap
> > Betreff: Re: [mkgmap-dev] Problem writing line ...
> > 
> > Hi Gerd
> > 
> > Just tried this on my low-res build without your patch and don't
> > get
> > a
> > problem, but might be because of different options or pending
> > ShapeSplitter changes.
> > 
> > What options are you using? I'll disable my other changes and try
> > again
> > 
> > Ticker
> > 
> > 
> > On Thu, 2021-06-10 at 09:00 +0000, Gerd Petermann wrote:
> > > Hi Ticker,
> > > 
> > > please see https://files.mkgmap.org.uk/detail/513
> > > This is what I get:
> > > D:\mkgmap>java -ea -jar dist\mkgmap.jar
> > >  e:\osm_out_work\norway\20210511_095323\63240001.o5m
> > > Mkgmap version 4763
> > > Time started: Thu Jun 10 10:50:35 CEST 2021
> > > SCHWERWIEGEND (Polyline):
> > > e:\osm_out_work\norway\20210511_095323\63240001.o5m: Problem
> > > writing
> > > line (class uk.me.parabola.imgfmt.app.trergn.Polygon) of type
> > > 0x16
> > > containing 30 points and starting at
> > > http://www.openstreetmap.org/?mlat=62.987366&mlon=-1.137106&zoom=
> > > 17
> > > SCHWERWIEGEND (Polyline):
> > > e:\osm_out_work\norway\20210511_095323\63240001.o5m:  
> > >  Subdivision
> > > shift is 0 and its centre is at
> > > http://www.openstreetmap.org/?mlat=62.263577&mlon=-1.478584&zoom=
> > > 17
> > > SCHWERWIEGEND (Polyline):
> > > e:\osm_out_work\norway\20210511_095323\63240001.o5m:   deltaLat =
> > > 33731
> > > Number of MapFailedExceptions: 0
> > > Number of ExitExceptions: 0
> > > Time finished: Thu Jun 10 10:50:48 CEST 2021
> > > Total time taken: 13 seconds
> > > 
> > > I've not looked at all the details, but the polygon overlaps the
> > > inital area extremely.  The attached patch fixes the problem but
> > > I
> > > have not tested any side effects.
> > > 
> > > Gerd
> > > 
> > > _______________________________________________
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> > > mkgmap-dev at lists.mkgmap.org.uk
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