[mkgmap-dev] Polygon with barrier problem

Sat Jan 23 10:59:15 GMT 2010

Dave F. wrote:
> Hi
> 
> I'm new to the joys of creating my custom styles & renderings.
> Using -r1505. WinXp
> 
> I have a landuse=farmyard polygon with, a barrier=wall additional tag.
> This barrier wasn't an additional way drawn around the perimeter of the
> polygon, but with the barrier=wall key added as an extra tag.
> 
> The problem is it only renders the barrier, the polygon being transparent.
> 
> I have other landuse=farmyard polygons without the barrier tag & they
> render correctly.
> 
> Using this command:
> java -Xmx512M -ea -jar mkgmap.jar --remove-short-arcs --gmapsupp
> "Contours.img" --transparent --style-file="c:\dwgs\Programs\GPS
> All\Garmin Profile" --family-id=42 M000002.TYP Barrier_test.osm
> 
> In my line style: barrier=wall
> 
> In my polygon style:
> landuse=farmyard & barrier=wall
> landuse=farmyard
> 
> What do I need to do to get it to render?
> 
> Thanks for your help
> 
> Cheers
> Dave F.
> 
Torsten has explained what's going on here.  For future reference, 
mkgmap processes the style files in a strict order, which is:
    1. version
    2. info
    3. options
    4. relations
    5. points
    6. lines
    7. polygons
    8. overlays
Thus your landuse=farmyard & barrier=wall object is being matched by the 
lines style file at 6 first and then further rule matching is 
terminated, meaning that whatever applicable rules you have in your 
polygons file at 7 are never applied.

Charlie