[mkgmap-dev] Contour lines without elevation. What shoul mkgmap do?

Wed Oct 11 16:16:29 BST 2023

Topical Garmin Bike headunits (Edge series) do elevation profiles for routes, but as far as I understand from DEM data, not contour lines, or?
Would personally never use contour lines fir biking.

These devices have a checkbox option to either displsy contour lines or not (if present in the map at all) in their firmware.

I recently made successfull tests to render unpaved roads on the contour line types, to be able switch the same map between decluttered road and gravel use for bikes en route. Interesting hack. (Dunno which mkgmap version atm, am travelling).

//Felix

-------- Original Message --------
From: Gerd Petermann <gpetermann_muenchen at hotmail.com>
Sent: October 11, 2023 3:38:23 AM MST
To: Development list for mkgmap <mkgmap-dev at lists.mkgmap.org.uk>
Subject: Re: [mkgmap-dev] Contour lines without elevation. What shoul mkgmap do?

Hi Ticker,

my concern is that the data in the labels is also used to calculate a height profile when routing is enabled.
Maybe this also depends on the --show-profiles option.

Gerd

________________________________________

On Wed, 2023-10-11 at 08:16 +0000, Gerd Petermann wrote:
> Hi all,
>
>...
>
> I guess the same problem can happen with OSM data when a style uses the line types  0x20 ..
> 0x25 .
> Should I add checks to warn when these line types are used without a proper label that can be
> elevation data?
>
> Gerd
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev

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