[mkgmap-dev] polygon type 0x4a

Fri May 17 07:55:41 BST 2013

Hi Gerd,
I thought 0x4a are the polygons that correspond with the tile borders so it shouldnt be used at all in the style file for other purposes.

> --transparent=false generates polygon type 0x4b.
> Type 0x4a seems to be reserved for polygons used in the overview map:
> * In addition to a low detail map, the overview map contains a number
> of
> type
> * 0x4a polygons. These definition areas a labeled after and correspond
> to
> * the detail map img files.
> 
> I think that means that 0x4a should not be used in the style if an
> overview
> map is
> wanted ?
> 
> Gerd
> 
> 
> GerdP wrote
> > Hi all,
> >
> > I was able to reproduce the error messages reported by Felx :
> > http://gis.19327.n5.nabble.com/SeaGenerator-in-overview2-branch-tp5761296p5761396.html
> >
> > when I add something like this in the style\polygons file:
> > natural=land [0x4a resolution 10]
> > and use --precomp-sea.
> >
> > As I already wrote, the polygon type 0x4a is hardcoded in mkgmap:
> > 1) mkgmap generates 0x4a polygons for the whole map when you don't
> > use
> > --transparent
> > 2) polygons with type 0x4 are NOT divided by the
> > PolygonSubdivSizeSplitterFilter
> >
> > I am not sure what to make of this.
> > The default style doesn't assign 0x4a to a polygon, it doesn't even
> > have a
> > rule for the
> > natural=land polygons generated by the SeaGenerator. I was already
> > wondering why
> > we generate them.
> >
> > I assume the special treatment of 0x4a in
> > PolygonSubdivSizeSplitterFilter
> > was added
> > because of the bug that was fixed in r2612.
> > This is what happens if I remove the special case for 0x4a:
> > - With r2613 and the (unchanged) default style I see no change in
> > any
> > output file
> > - With r2613 and the above modification I see that the error
> > messages are
> > gone
> >
> > So I guess I should just remove the special case?
> >
> > Gerd
> > P.S. Felix, get well soon!
> >
> >
> > _______________________________________________
> > mkgmap-dev mailing list
> 
> > mkgmap-dev at .org
> 
> > http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
> 
> 
> 
> 
> 
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