[mkgmap-dev] option link-pois-to-ways information

Wed Feb 16 12:28:31 GMT 2022

Hi Eric,

the dead-end-check is performed if the corresponding option --report-dead-end is given
It is done after(!) the style rules were processed and the road network is known.
A dead-end is a place on a oneway road where you can either no go back from or not come to
with a vehicle.

No idea how this is related to your service roads problem.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von ankeric.osm at gmail.com <ankeric.osm at gmail.com>
Gesendet: Mittwoch, 16. Februar 2022 11:57
An: 'Development list for mkgmap'
Betreff: Re: [mkgmap-dev] option link-pois-to-ways information

Hi Gerd,

Question ("On Topic" or "Off Topic"):

Has mkgmap (Internal tags) an option to "Set mkgmap:dead-end = true"?

I do read:
mkgmap:dead-end-check   Set to false to disable the dead-end-check for a specific way   report-dead-ends
But: what is "dead-end-check"?

I would like to have this option:

highway=service | highway=track & mkgmap:dead-end = true {set access=private}
(Do not ignore a dead-end mountain valley, f.i.)
(OsmAnd can handle "access=private". Garmin cannot, but I can manually ignore)

I do use:
bicycle=destination { set highway=service; set bicycle=yes; set mkgmap:throughroute=no }

But I don't use:
"mkgmap:throughroute=no" for navigation. So: useless???
Because I don't know how to...

BTW, FWIW:
In the Netherlands "they" have set {access=private} on ALL "highway=service" "service=driveway" (oké, only in my region).
Making Address navigation by Garmin impossible.

AnkEric

-----Original Message-----
From: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> On Behalf Of Gerd Petermann
Sent: woensdag 16 februari 2022 10:25
To: Development list for mkgmap <mkgmap-dev at lists.mkgmap.org.uk>
Subject: Re: [mkgmap-dev] option link-pois-to-ways information

Hi Ticker,

reg. routing problems in Basecamp:  Maybe you hit the problem described for --max-routing-island-len?

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
Gesendet: Dienstag, 15. Februar 2022 17:41
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] option link-pois-to-ways information

Hi Gerd

highway=street_lamp was just an example of a POI that can get linked to a WAY that can be ignored. There are others that are valid OSM tagging that are irrelevant to the highway behaviour.

Actually, regardless of --link-pois-to-ways, there is a problem in the scenario where there is typical road system linked to a small road system by just a road with mkgmap:throughroute=no and a footway.
BaseCamp and the eTrex 30x really will route over the footway to get into the small road system. MapSource and, I think, the eTrex HCx will use the road.

I realise that this set-up seems unlikely, but can happen if there is an inconsistency in the tagging of roads in the small system that results in one not having mkgmap:throughroute=no that is joined to the footway. My example happened in a business park.

My style makes this problem more likely to happen, while also trying to fix it, by not setting mkgmap:throughroute=no unless there seems to be a good reason for it. Good reasons are when there is a barrier on a service road. This is the test I want to improve.

Ticker

On Tue, 2022-02-15 at 14:12 +0000, Gerd Petermann wrote:
> Hi Ticker,
>
> if you find highway=street_lamp nodes on highway=* ways those are
> errors and should be fixed in OSM.
> Street lamps are normally mapped along the road, not on the road.
>
> Maybe you meant highway=traffic_signals?
>
> Besides that Basecamp should never route a car over a footway. That
> sounds like an error in the map data produced by mkgmap or maybe you
> used wrong routing settings. Please let me know how to reproduce.
>
> No idea if your proposed change would improve routing, but feel free
> to experiment with that.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
> von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
> Gesendet: Dienstag, 15. Februar 2022 13:37
> An: mkgmap development
> Betreff: [mkgmap-dev] option link-pois-to-ways information
>
> Hi all
>
> To improve routing, I'd like to get information about the POIS that
> are being linked to a WAY that can be used as part of the style/lines
> processing.
>
> The problem I'm trying to solve is to restrict car routing through
> some types of very low level roads (eg service) when there is a
> barrier.
> Setting mkgmap:throughroute=no on these works nicely with MapSource
> and older devices but BaseCamp and newer devices will happily route
> over a footpath to avoid a throughroute=no section.
>
> At the moment, with --link-pois-to-ways, if the POI has a barrier or
> highway tag, mkgmap:way-has-pois is set true. This can be tested by
> lines, inc/access etc, but there is no way to find out if it is a
> significant barrier or something like highway=street_lamp.
>
> points processing can set mkgmap: access & road_speed/class variables
> that are handled by inbuild code after lines processing to imposes
> more restrictions on the way and/or reduces speed/class; this is no
> use for what I want to do.
>
> Possibilities are:
> 1/ have options to say which POI tag/value combinations cause
>    link-pois-to-ways
> 2/ set new variables on the way, eg mkgmap:barrier_tags/highway_tags,
>    which are a list of distinct POI highway/barrier tag values.
>
> Ticker
>
>
>
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