[Potlatch-dev] New docs

[Pierre (PierZen)]

on 2011-03-16  12:09:28
Richard Fairhurst wrote   

>    I've documented the map_features.xml file at
>    http://wiki.openstreetmap.org/wiki/Potlatch_2/Developer_Documentation/Map_Features

Thanks Richard for this new documentation.

Looking at various map_features.xml files I see that definition of tag elements related to one Feature are in general very simple : One or two Keys with a specific value. Trying to define rules for HOT Presets, I wonder if it would be possible to have more complex definitions of TAG selection.

The documentation do not detail the possibilities or restrictions relating to selection of TAG elements.  To this regard, below are few questions relating to sections of the documentation where I think it would be good to have some precisions.

1. TAGS with multiple values : How to define a tag where we accept any values for one key? Is the following formulation acceptable or not?
 (ie. <tag k="highway" v="*"/>)

2. TAGS: If we already have a feature in Default Presets using a specific tag like School, is it possible to create a new feature with duplicating this tag reference without any confict with the existing feature ?  If so, how to do?

3. Features that refer to eigher one TAG or an other : As example, the HOT Obstacle Preset refers to either road or bridge. Is it possible and how to define such rules ?

4. TAG definition with using vmatch. How does it work.
  Examples
  <tag k="traffic_calming" v="yes" vmatch="*"/> 
  <tag k="man_made" v="survey_point" vmatch="survey_point|lighthouse|beacon|cairn|buoy"/> 


Regards,

Pierre Beland
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