[mkgmap-dev] Resolutions...

Tue Mar 10 13:31:24 GMT 2020

Hi Nick,

pois from 0x2900 to 0x311f are only visible on resolution „24+".
Means you have to „overzoom“ deeper into resolution 24 to see them.

This behaviour is not related to mkgmap, it seems to be a limitiation by Garmin to avoid cluttering of maps with these pois, as they contain most indexed items like shops, restaurants, etc. Only exception are airports on 0x2f04.

To have these pois appearing earlier I haven´t found another solution yet than to "double“ wanted pois.
In your example:
church=* [0x3202 resolution 23 continue]
church=* [0x2c02 resolution 24]

Disadvantage: Basecamp (4.6.3/Mac) not only shows the pois on wanted resolution, but also lists these doubles in search („All Pois“ only)
On device (at least my Oregon450) the range 0x3200-0x330f doesn´t appear in searches, but is visible as expected.

Jan

> Am 10.03.2020 um 13:39 schrieb nwillink <osm at pinns.co.uk>:
> 
> Hi 
> 
> Can anyone tell me what exactly the '-' in after resolutions means.
> 
> I plotted a church resolution 21-23  only to find it does not include
> resolution 23.
> 
> Somewhere I read that only the resolutions between the numbers are plotted.
> 
> If that is the case what does 23-24 mean ? What resolution is there between
> 23 and 24
> 
> What happens with resolution 23-23 ?
> 
> Does 23-24 mean only level 23
> Is 24-23 different from 23-24?
> 
> The manual does not seem to tackle this issue.
> 
> btw
> 
> Have noticed that Basecamp/Mapsource only plots 0x2c poi range at level 24
> 
> So the following might never occur in some GPS devices is except at
> resolution 24 
> 
> 0x2c02 [resolution 21 ]
> 
> This seems to affect :
> 
> viewpoints,churches,castles, schools,amusement parks etc
> 
> Regards
> 
> Nick
> 
> 
> 
> 
> 
> --
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