[mkgmap-dev] Splitter Error

Wed Mar 20 10:47:46 GMT 2013

I already tried this method a while ago.

As marine devices support only a single gmapsupp.img container, I had to
combine both layers into one file at the end. The result looked good on my
marine device, but on handheld models the upper layer did not show up at
all. I feared there will be more unexpected or random behavior again, and
gave up this approach. But maybe I did something wrong.

I can try it again after my Easter holiday and maybe with your help we can
find a method that works predictably.

> -----Ursprüngliche Nachricht-----
> Von: mkgmap-dev-bounces at lists.mkgmap.org.uk [mailto:mkgmap-dev-
> bounces at lists.mkgmap.org.uk] Im Auftrag von GerdP
> Gesendet: Mittwoch, 20. März 2013 08:22 
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: Re: [mkgmap-dev] Splitter Error
> 
> Hi,
> 
> I did not find a simple solution regarding a change in mkgmap.
> But maybe a different approach:
> What about using two layers like we do with contour lines?
> I mean:
> create a transparent map with the polygons for seamark:type=fairway and a
> normal map with all other elements and give them different draw-orders.
> Would that work for you?
> 
> Gerd
> 
> 
> RheinSkipper wrote
> >> The use of the prepro changes something in the output file, but that
> >> seems not to change the draw order. Reversing the order of the lines
> >> in wayorder also changes something in the img file, but not the draw
> >> order.
> >>
> > Did you run the prepro after splitter on each tile? I use a script
> > with a "for loop" for that. Splitter output must be set to xml.
> >
> > I attach some test data. With this the prepro works perfectly.
> >
> >
> >
> >> It seems that the Garmin algo choses the larger polygon if it finds
> >> two overlapping polygons in one sub division.
> >>
> > Both riverbank and fairway are divided into segments. So the fairway
> > polygons are not always smaller than the riverbank.
> >
> > We were already thinking about a prepro that combines all the
> > riverbank segments to one big polygon for each river. If fairway is
> > always completely inside riverbank, one could use it as an inner
> > multipolygon and cut out holes in the riverbank. But this was
> > considered to be too complicated.
> >
> >
> > _______________________________________________
> > mkgmap-dev mailing list
> 
> > mkgmap-dev at .org
> 
> > http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
> >
> > test3.osm (2K)
> > &lt;http://gis.19327.n5.nabble.com/attachment/5753112/0/test3.osm&gt;
> 
> 
> 
> 
> 
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