I've used the mkgmap:set_unconnected_type and
mkgmap:set_semi_connected_type to delete already one- and no-connnect ways
in the OSM data, and that has been helpful, but sometimes I delete ways
that are connected both ends, with the implication that something now
that used to be connected on both ends is connected only on one end now,
and something else that was connected on one end may now be not connected
on either end.
I think a specific use case is that I find a 2-connect low priority way
(like service=driveway) that passes through a private building or is very
short. Ideally I would like to simply delete all of them but this is
just a heuristic to reduce file sizes. Anyway, I delete that way, but
that way continues on connected to something else, but now that way is
newly 1- or 0-connect, and I want that removed too. Of course there are
two halves left when removing a 2-connect way, but it should be easy
enough to determine the lower class way (another driveway) is the one that
should also be trimmed.
(One exact issue is that someone has a loop driveway with both ends
connected to a residential road, and the loop driveway has an offshoot.
Removing the driveway would leave the offshoot dangling -- originally one
connect, now zero connect due to deletion of the loop -- and that I would
also like to remove.)
Is something like this possible?
On Fri, 22 Jul 2022, Gerd Petermann wrote:
Date: Fri, 22 Jul 2022 15:35:43 +0000
From: Gerd Petermann <gpetermann_muenc...@hotmail.com>
Reply-To: Development list for mkgmap <mkgmap-dev@lists.mkgmap.org.uk>
To: Development list for mkgmap <mkgmap-dev@lists.mkgmap.org.uk>
Subject: Re: [mkgmap-dev] Multiple pass cleanup possible with style?
Hi,
not sure what exactly you want to do, but I think the special tags
mkgmap:set_unconnected_type and mkgmap:set_semi_connected_type
help to solve your problem.
With thoe you can define that a road should be removed or just be rendered as a
non-routable line if it is not connected to other roads or
only connected to one other road.
Gerd
________________________________________
Von: mkgmap-dev <mkgmap-dev-boun...@lists.mkgmap.org.uk> im Auftrag von blc
<blc+mkg...@mail.vanade.com>
Gesendet: Freitag, 22. Juli 2022 16:26
An: mkgmap-dev@lists.mkgmap.org.uk
Betreff: [mkgmap-dev] Multiple pass cleanup possible with style?
Is it possible to run through certain parts of the style more than once?
Use model:
To reduce sizes I {deletealltags} of some small objects that I deem not
important. However this sometimes ends up leaving some orphan
ways that are no longer connected to anything. I'd like to delete these
ways too, but seems like it does everything in one pass so these get left
despite having a rule to remove them.
How would one do something like this? I don't think I want to do this
more than a few times but cleaning up the self-inflicted orphaned ways
would be helpful.
Thanks!
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