[mkgmap-dev] mkgmap:set_unconnected_type differentiate between connected on both sides or on one side only

Tue Sep 19 07:16:47 BST 2017

Well, I just noticed that mkgmap:set_unconnected_type is not yet documented.
When I implemented it with r2599 I decided to remove all overlay lines if
the road is unconnected and mkgmap:set_unconnected_type=none is used. 
Later, Steve changed this in r2707, the reason was that you complained about
the old behaviour.
Please read these old threads carefully:
http://gis.19327.n8.nabble.com/Serious-mkgmap-Bug-set-unconnected-type-not-respecting-continue-command-tp5775051.html
http://gis.19327.n8.nabble.com/Commit-r2707-Don-t-complete-remove-an-unconnected-road-tp5777740.html

My understanding of these discussions is that we need is an option or tag
that controls what to do with an overlay line when the underlying road was
removed. 

Gerd

Felix Hartmann-2 wrote
> But does it mean semi_connected or unconnected? I would like to have both
> as option if possible.
> 
> On 18 September 2017 at 21:22, Gerd Petermann <

> gpetermann_muenchen@

>> wrote:
> 
>> Hi all,
>>
>> what do you think about a tag named mkgmap:remove-if-no-road=yes ?
>> I would add code to check all non-routable lines for this tag.
>> If no routable line is found for the same OSM way the line is removed.
>> This check is performed after the processing of the 2 mkgmap:set_xxx_type
>> tags
>> and maybe other routines which remove routable lines because they are too
>> short
>> etc.
>>
>> Gerd
>>
>>
>> Felix Hartmann-2 wrote
>> > 3. I'm fine with another name - maybe mkgmap:set_semi_connected_
>> line=none
>> > and mkgmap:set_unconnected_line=none?
>> > Well I actually already went through my style and added
>> > mkgmap:set_semi_connected_type=none - I'm just missing the overlays
>> also
>> > being removed as explained to fully use it. I actually had not noticed
>> > that
>> > mkgmap:set_unconnected_type=none did not remove all the lines that I
>> > intended to be removed by it because I never properly checked it using
>> a
>> > test file - and there are not many unconnected ways in real OSM data
>> > (while
>> > there are far more semi_connected lines/ways). Actually I think it
>> should
>> > be semiconnected as we alo use unconnected and not un_connected (even
>> > though it is two words in proper spelling).
>>
>>
>>
>>
>>
>> --
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> 
> 
> 
> -- 
> Felix Hartman - Openmtbmap.org & VeloMap.org
> Schusterbergweg 32/8
> 6020 Innsbruck
> Austria - Österreich
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