[OSM-talk] How to define a climbing crag/area?

[Viet Nguyen]

Greetings!

I'm an avid rock climber and open source enthusiast.  I want to build
better climbing maps and an easy-to-use mobile app for climbers to share
information.

Many climbing walls/crags/areas are currently defined as nodes in OSM.  In
contrast, in my proof-of-concept app users can define and save crag
boundaries by drawing polygons on the map.  The search function would then
use spatial queries to find features contained within a polygon.

The linked photo below illustrates typical layout of a climbing area. Crag
boundaries are often loosely defined by climbers... so I'm not sure whether
saving those polygons to OSM is a good idea.

https://s9.postimg.org/xg4dq6mbj/nested-boundaries-example.jpg


Also I have looked into using Relations but the concept seems rigid for
this use case as it would require the users (or the code) to associate
climbing routes to a relation.  Perhaps I misunderstand the concept of
relations?

I'm looking for guidance and suggestions on how to best implement this
feature.  Having all geo-data in OSM (single source of truth) would be
ideal, but I can just store those polygons in my own database as well.

Here's my proposal:

https://wiki.openstreetmap.org/wiki/Proposed_features/
OpenBeta_Initiative_workflow


Thanks,

Viet Nguyen

















https://s9.postimg.org/xg4dq6mbj/nested-boundaries-example.jpg
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk/attachments/20170421/1aee4c5d/attachment-0001.html>