[mkgmap-dev] Fwd: resolution and zoom levels in style files

Thu Feb 25 12:06:08 GMT 2010


On 25.02.2010 13:04, Steve Ratcliffe wrote:
> Hi, I'm forwarding this mail that ended up at the bounce address rather
> than going to the list.
>
> -------- Original Message --------
> Subject: resolution and zoom levels in style files
> Date: Thu, 25 Feb 2010 03:43:52 +0100
> From: Daniela Duerbeck<daniela.duerbeck at gmx.de>
> Reply-To: daniela.duerbeck at gmx.de
> Organisation: GMX
> To: mkgmap-dev-bounces at lists.mkgmap.org.uk
>
> Hi All!
>
> In the instructions to styles I find that there are 24 zoom levels and
> 24 is the "most zoomed in".
> But when I count, I find 27 zoom levels on my Etrex Legend HCx.
> 27: 5m, 26: 8m, 25: 12m, 24: 20m, 23: 30m, 22: 50m, 21: 80m, 20: 120m,
> 19: 200m, 18: 300m, 17: 500m, 16: 800m, 15: 1.2km,
> 14: 2km, 13: 3km, 12: 5km, 11: 8km, 10: 12km, 9: 20km, 8: 30km, 7: 50km,
> 6: 80km, 5: 120km, 4: 200km, 3: 300km, 2: 500km, 1:800km.
>
> Now I would like to know which resolution I should use to make e.g.
> residential roads appear just at 300 meters.
> At 500 meters the map gets a bit confusing with all these little streets.
>
> At resolution 23 they appear at 120m, with 22 already at 500m.
>    
a) you have to set levels via mkgmap-options or us a resolution file, 
else 23 is mapped to 24 only. Mind that max 7 levels can be used for a 
single map. Trial and Error will help you.
> Are there other points to change?
>
> Apologies for this beginner's question, but I found no answer. :-(
>
> Thanks a lot in advance,
> Dani
>
>
>
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