[mkgmap-dev] How to track an error in OSM data ? (and style's behavior, error) (David)

Mon Aug 1 18:20:51 BST 2011

To Chris and Wanmill,

I know the need to add "continue" rule to apply the next filter on data. 
But the fact is it does not seem to work as expected at least with 
"landuse=forest" and "natural=wood" with Ireland PBF file (splitted with 
splitter r2009 and compiled with mkgmap r2009). I do not have any clue, 
only a temporary solution.

But the biggest trouble is still the corrupted map generated for 
Northern Ireland around Belfast with a huge commercial area polygon 
displayed in levels 0 and 1. Basecamp can display the map without any 
problem at all zoom and detail levels. My first idea was an error in OSM 
file, but I cannot find bad data. It looks like a bad result with early 
generate-sea option development (at least one year ago).

Regards,
David

Le 01/08/2011 13:00, mkgmap-dev-request at lists.mkgmap.org.uk a écrit :
> Am 31.07.2011 12:32, schrieb WanMil:
>
>>> >>  I also found an error in a style file for forest polygons. You have to
>>> >>  write the rules like this if you want the result expected :
>>> >>
>>> >>  landuse=forest&  wood=coniferous [0x54 resolution 18]
>>> >>  landuse=forest&  wood=decideous [0x50 resolution 18]
>>> >>  landuse=forest&  wood=mixed [0x55 resolution 18]
>>> >>  landuse=forest&  wood !=* [0x50 resolution 18] /*this line is applied if
>>> >>  no data matches the ones above*/
>>> >>
>>> >>  and not like that :
>>> >>
>>> >>  landuse=forest&  wood=coniferous [0x54 resolution 18]
>>> >>  landuse=forest&  wood=decideous [0x50 resolution 18]
>>> >>  landuse=forest&  wood=mixed [0x55 resolution 18]
>>> >>  landuse=forest [0x50 resolution 18]/*this line overrides the ones above*/
>> >  As far as I know all rules after the first
>> >  matching line with a garmin id are skipped unless you add a continue
>> >  statement. So the default style should be correct.
> Yes. mkgmap stops at the first matching rule.
>
> Exeptions:
>
> Action rules ( example : maxspeed=DE:urban {set maxspeed=50} )
> and the continue-statement:
>
> barrier=fence [0x34 resolution 24 continue]
>
> Chris
>
>

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