[mkgmap-dev] mkgmap r2179: Still NullPointerException in BoundaryUtil

Tue Jan 24 21:46:07 GMT 2012

Hi WanMil,

I verified the result of the area calculation with a slightly different algorithm that I found in the net, 
that produced always exactly the same result. 
Maybe it is not a good idea to use integer/long values for this. I'll continue investigation with this tomorrow.

ciao,
Gerd

> Date: Tue, 24 Jan 2012 22:30:50 +0100
> From: wmgcnfg at web.de
> To: mkgmap-dev at lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] mkgmap r2179: Still NullPointerException in	BoundaryUtil
> 
> Hi,
> 
> in case your are right Gerd (I have no time today to check that in 
> deep), it is a bug of the clockwise method. So this method needs a 
> bugfix - not the parts that use the method clockwise method.
> 
> WanMil
> 
> > Hi Thorsten,
> >
> > I can confirm this problem. I can repdroduce it with a "boundary" which
> > contains these 4 points:
> > [2412980/371559, 2412981/371558, 2412992/371544, 2412980/371559]
> > The Way.clockwise() method says it is counter-clockwise.
> > Besides rounding errors, it is a line, not a shape, and I guess that causes
> > the problem. The clockwise() method calculates an area size of 3, which is
> > almost zero.
> >
> > It is quite likely that the intersection of two areas produces these "nearly
> > empty" (parts of) areas, what we need is a filter that throws them away.
> >
> > I am not sure if WanMil is already working on this?
> >
> > Gerd
> >
> >
> > Thorsten Kukuk wrote
> >>
> >> Hi,
> >>
> >> I compiled mkgmap r2179 and tried to create the bounds files with
> >> it:
> >>
> >> osmconvert data/planet/planet-120122.osm.pbf --out-o5m
> >> osmfilter data/boundaries/world-20120122.o5m --keep-nodes=
> >> '--keep-ways-relations=boundary=administrative =postal_code postal_code='
> >> mkgmap --createboundsfile=data/boundaries/boundaries-20120122.osm.gz
> >> --bounds=data/boundaries/20120122
> >> Schwerwiegend (BoundarySaver): Calculate bbox to
> >> (-90.12222290039062,-180.24444580078125) to
> >> (82.6120376586914,179.17156219482422)
> >> Exception in thread "main" java.lang.NullPointerException
> >>          at
> >> uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryUtil.loadBoundaryFile(BoundaryUtil.java:169)
> >>          at
> >> uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryPreparer.workoutBoundaryRelations(BoundaryPreparer.java:144)
> >>          at
> >> uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryPreparer.run(BoundaryPreparer.java:110)
> >>          at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:333)
> >>          at
> >> uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:126)
> >>          at uk.me.parabola.mkgmap.main.Main.main(Main.java:112)
> >> Command exited with non-zero status 1
> >>
> >>
> >>   Thorsten
> >>
> >> --
> >> Thorsten Kukuk, Project Manager/Release Manager SLES
> >> SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg
> >> GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)
> >> _______________________________________________
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> >> mkgmap-dev at .org
> >> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
> >>
> >
> >
> > --
> > View this message in context: http://gis.638310.n2.nabble.com/mkgmap-r2179-Still-NullPointerException-in-BoundaryUtil-tp7215004p7220841.html
> > Sent from the Mkgmap Development mailing list archive at Nabble.com.
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