[Talk-TW] Taiwan Highway Shields rendering

[Arne Goetje]

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Hi Sin-di,

Yes, I know the route relation. Problem is, it's not supported by
Mapnik by default and threfor not rendered on the main map. Additional
hacking is necessary to get the lookup right. So, the 'ref' tags as
well as 'is_in' are still necessary as fallback. However, if someone
knows how to hack the relation lookup into Mapnick, we can aim for
that solution, since it's the cleaner one.
If we agree on that, we can just ommit my proposed extra tags
(ref:multi, ref1, ref2, ref3, ...) and try to add relations for each
primary, secondary and tertiary route (Freeways and Expressways do not
share numbers in Taiwan).

Cheers
Arne

On 04/14/2013 08:31 PM, 李昕迪 Lee, Sin-di wrote:
> http://wiki.openstreetmap.org/wiki/Custom_Highway_Shields
> 
> This guideline suggests using "relation"
> 
> 
> 2013/4/12 Arne Goetje <arne.goetje at gmail.com
> <mailto:arne.goetje at gmail.com>>
> 
> Hi Louis,
> 
> On 04/12/2013 03:17 PM, Louis Liu wrote:
>> How do you handle  the ref tags of provincial/national highway 
>> branches, like 1甲 and 1乙? "甲" should bellow "1" in the shield,
>> but Mapnik just puts them in the same line when using the
>> default settings. I have an ugly solution: Every branches have
>> their own in style sheet and STATIC shield images. There only
>> tens of provincial branches in Taiwan, so this method is
>> possible. But this makes the style sheet file more difficult to
>> maintenance.
> 
> 1. Right now I just put them next to the highway number. I know
> that they should be below the number, but I'm afraid it would be
> difficult to distinguish on the map, since the font size must be
> considerably smaller this way. 2. I think your ugly solution would
> still be the best, if we want this. Just split the filter rules
> into a separate file and include it into osm.xml.
> 
>> I started to fix some ref tag near Taichung and Kaohsiung. There 
>> are so many tags need to be fix.
> 
> Yes, I know... :(
> 
>> So I use the offline edit function of JOSM to massive
>> modification in the following steps: 1. Install waydownloader
>> plug-ins. 2. Download a small area that covers highway from
>> server. 3. Use waydownloader to download connected highways. 4.
>> Repeat step 3 to complete all way segments 5. Save the data as
>> file. 6. Use your favorite editor to replace the tags. 7. Don't
>> forget to add "action='modify'" to the way you've modified. 8.
>> Open JOSM and open the file, then upload. The step 7 is
>> important. Otherwise, JOSM won't know the way is modified ( and
>> the changes won't be upload).
> 
>> But do you have any elegant solutions for these cases?
> 
> I do it similar.
> 
> Cheers Arne
> 
> _______________________________________________ Talk-TW mailing
> list Talk-TW at openstreetmap.org <mailto:Talk-TW at openstreetmap.org> 
> http://lists.openstreetmap.org/listinfo/talk-tw
> 
> 
> 
> 
> -- 李昕迪 Lee, Sin-di | http://www.mcdlee.tw

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