[mkgmap-dev] Style Manual

Thu Feb 1 11:29:15 GMT 2018

Hi Gerd,
regarding tagisincomplete I would suggest to get rid of it. I can't
imagine any use of it.

For 2nd tagg it seems to be somehow useful. Maybe document it like '
Don't use in relation-style, is set to indicate line/poygon is part of
MP-relation'. The usage in relation-styles should be checked during
check-style.

Henning

On 01.02.2018 18:22, Gerd Petermann wrote:
> Hi all,
>
> to be honest, I don't fully understand what mkgmap:tagsincomplete is about.
> The tag is set by the OSM readers when a type=multipolygon or type=boundary relation has a tag that is NOT evaluated by the style,
> this is probably the case for many of those relations. The effect is that a mp relation with a normal tag like name=* is treated the same as
> one with exotic:unused:nonsense=*. The only case where this seems to matter is when a relation has only the type=mulitpolygon tag.
>
> See this svn log message: http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=2366
> The tag is evaluated before any style processing happens and I think it makes no sense to evaluate or change it in style rules.
>
> reg: mkgmap:stylefilter:
> The tag is set in the MultipolygonRelation code. It is used to decide whether the rules in lines or in polygons should be used. 
> Without the tag it is likely that both are combined (rules in lines before those in polygons).
> You should not see this tag in the relations style, only in lines or polygons, as long as you don't set it in the relations 
> rules. Doing this might cause trouble.
> Maybe it makes sense to evaluate this tag in the lines rules, something like 
> # filter highways which are parts of multipolygon relations
> highway=* & mkgmap:stylefilter=lines {...} 
>
> tl;dr:
> I can document these tags as e.g. "please don't set or change"
> or I can try to get rid of them. What do you think?
>
> Gerd
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Gerd Petermann <gpetermann_muenchen at hotmail.com>
> Gesendet: Mittwoch, 31. Januar 2018 21:22
> An: Mike Baggaley; 'Development list for mkgmap'
> Betreff: Re: [mkgmap-dev] Style Manual
>
> Hi Mike,
>
> I'd rather change the code so that you don't see those tags. They are for internal use only.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Mike Baggaley <mike at tvage.co.uk>
> Gesendet: Mittwoch, 31. Januar 2018 20:20
> An: 'Development list for mkgmap'
> Betreff: [mkgmap-dev] Style Manual
>
> I notice the style manual has no mention of mkgmap:stylefilter or
> mkgmap:tagsincomplete in it. I see these in the output of the echotags
> command when handling a relation. Can they be added to the documentation?
>
> Cheers,
> Mike
>
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