[mkgmap-dev] r4046: new algo for background (0x4b) in overview map

Sun Jan 14 20:11:42 GMT 2018

Canary Islands contains a single tile, that's why I saw no effect:-[
Spain map now has non-rectangular overview covering only map tiles. No 
mouse hover, as reported by Henning.

El 14/01/18 a las 19:12, Gerd Petermann escribió:
> Hi Carlos,
>
> if your map contains multiple tiles that form a rectangular shape
> than the 0x4b polygons are combined again into one rectangle
> by ShapeMerger.
> Your map of spain looked different (empty area in part of portugal),
> so in that map you should see a different 0x4b polygon.
>
> Gerd
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Carlos Dávila <cdavilam at orangecorreo.es>
> Gesendet: Sonntag, 14. Januar 2018 18:45:09
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: Re: [mkgmap-dev] r4046: new algo for background (0x4b) in overview map
>
> MapEdit shows a rectangular map coverage area polygon from r4056, see
> attached screenshot. May be I'm doing something wrong.
>
> El 14/01/18 a las 18:23, Gerd Petermann escribió:
>> Hi all,
>>
>> thanks for testing. Size changes can be caused by block-size change, but also
>> a non-rectangular shape requires a few more bytes.
>> You can use GpsMapEdit to check this.
>> I'll continue experimenting with non-rectangular 0x4a an d0x4b shapes during the next days.
>>
>> Gerd
>>
>> ________________________________________
>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Carlos Dávila <cdavilam at orangecorreo.es>
>> Gesendet: Sonntag, 14. Januar 2018 17:57:42
>> An: mkgmap-dev at lists.mkgmap.org.uk
>> Betreff: Re: [mkgmap-dev] r4046: new algo for background (0x4b) in overview map
>>
>> I have tested single layer map and also OSM layer+contour (transparent)
>> layer, and I don't see any difference in MapSource. Contour lines are
>> cut with the same poly than OSM data. Only difference is that overview
>> img is slightly larger with r4056 vs r4051 in my test map (Canary
>> Islands), but I guess it's due to commit 4054.
>>
>> El 14/01/18 a las 12:54, Gerd Petermann escribió:
>>> Hi Henning,
>>>
>>> I would expect differences when you combine a normal map with transparent tiles containing contour lines
>>> and those tiles overlap the normal tiles.
>>>
>>> Gerd
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Henning Scholland <osm at hscholland.de>
>>> Gesendet: Sonntag, 14. Januar 2018 12:52:04
>>> An: mkgmap-dev at lists.mkgmap.org.uk
>>> Betreff: Re: [mkgmap-dev] r4046: new algo for background (0x4b) in overview map
>>>
>>> With using --transparent I can't see any differences compared to older
>>> mkgmap versions.
>>>
>>> Henning
>>>
>