[mkgmap-dev] Disconnected map sections, types in TYP-files.

Fri Oct 9 13:40:46 BST 2020

Hi, unfortunately --no-trim has not helped, i can still observe such gaps.

The splitter command:
java -Xmx1200m -jar ../mkgmap/splitter-r597/splitter.jar \
--output-dir=norden/splitted/ \
--mapid=77700001 \
--max-nodes=1500000 \
--no-trim \
norden/norden.o5m > norden/splitted/splitter.log

Kind regards
Karl

On fredag 9 oktober 2020 kl. 11:51:24 CEST Gerd Petermann wrote:
> Hi Karl,
> 
> reg. the gaps betweet tiles: This sounds like you use splitter with
> --no-trim=false. Try without it.
> 
> Gerd
> 
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von 7700
> <7770 at foskan.eu> Gesendet: Freitag, 9. Oktober 2020 11:37
> An: Development list for mkgmap
> Betreff: [mkgmap-dev] Disconnected map sections, types in TYP-files.
> 
> Hi.
> Still on my learning path, and thanks for good documents, which have helped
> a lot.
> 
> Now i have one observation and a few questions.
> 
> 1.
> i observe that in the map created (mkgmap 4585) i can see disconnected map
> sections, they usually show up as a thin white line in the map, often easier
> to see over water or darker areas. The gap sometimes makes the routing
> calculations fail if the gap is in the routing direction and big enough. I
> have observed these gaps not inly in the maps have made, but also at
> opentopomap, but not with garmin.opensteetmap.nl (to mention some
> examples). Pictures can be provided if wanted.
> Is there a proper way to eliminate these gaps when generating the maps?
> 
> 
> 2.
> When working with TYP files, i have read:
> If a polygon type is not listed in this section, then it will not be
> displayed at all.
> 
> Is this valid?
> If it is, then it means i really have to add every single item which may be
> generated and which is on the map, otherwise i risk loosing information
> without even knowing, say if i want to change very small portions from how
> the device displays something.
> 
> I have found that there some information sets that cover a lot of types that
> garmin devices can show, but is it possible to extract a list from mkgmap,
> for example extracting the default set?
> Is the example mapnik.txt file complete or just an example?
> 
> If i didn't make errors, it seems there is a difference between generating
> gmapsupp with no TYP and this example TYP.
> 
> 3.
> From which type number can i define my own type to avoid collission with
> existing types?
> I am thinking of adding handling for aerialways.
> 
> 
> 4.
> Related to the polygon amenity=parking and displaying of a picture.
> on maps such as from garmin.openstreetmap.nl, the polygon for
> amenity=parking displays the same parking symbol (garmin default, round
> with red P and black border) as for a point amenity=parking.
> I tried generating the individual tiles with the style present from mkgmap
> using --style-file=path/styles/, in which i see a mapping in the polygons
> file: amenity=parking | parking=surface [0x05 resolution 22]
> 
> But even with this, the parking polygons do not show any picture/symbol.
> What else is needed?
> 
> 
> 
> Kind regards
> Karl
> 
> 
> 
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