[josm-dev] Ideas for avoiding false duplicates merged

[Alan Mintz]

At 2010-07-15 07:54, Nakor wrote:
>     Hello,
>
>Now and then some user use the JOSM validator plugin to blindly merge 
>duplicate nodes in good faith but leading to more problems than before 
>(i.e. linking a road to a waterway where a bridge should  actually be). 
>One of the idea I had is to refine the validator plugin to sub-classified 
>duplicates nodes in different categories:
>
>- duplicate nodes linked to highways (i.e. all nodes at the same positions 
>are ONLY linked to highways)
>- duplicate nodes linked to railways
>- duplicate nodes linked to waterways
>....
>- duplicate nodes linked to mixed types of ways
>
>If there is no strong opposition against it I am willing to look into it 
>an propose a patch. Let me know your thoughts.

I'm having trouble thinking of a case where "duplicates" (two nodes that 
are near each other) should ever be merged automatically. The only common 
case seemed to be administrative boundaries (e.g. city limits), and there 
is significant opposition to merging these with road nodes.

--
Alan Mintz <Alan_Mintz+OSM at Earthlink.net>