[OSM-talk] [BOT] [RFC]: water surfaces

[Frank Villaro-Dixon]

On 16-03-22 15:23:44, Maarten Deen, wrote 1.7K characters saying:
>On 2016-03-22 14:10, Frank Villaro-Dixon wrote:
>
>># First goal:
>>First goal is quite simple. The idea is to work only on relations
>>which have a natural=water .  Then, it will:
>>	* Delete natural=water from all the ways if they are NOT closed or 
>>	ring 0.
>
>I have been fixing waterways and water areas in the New Orleans area. 
>I think most problems are due to a botched import. There are a number 
>of unclosed areas, some water, some wetland. They just need to be 
>closed which sometimes is just connecting the last two dots, sometimes 
>it is merging two ways.

Again: this bot will be applied ONLY to ways belonging to a relation ! So 
the water areas are already valid. What is the problem then ?
>
>It would be very unhelpful if the natural=water tags of these ways 
>would be deleted. Then you have to go search in the history to see 
>what it was. Is it natural=water or natural=wetland? It would increase 
>the workload in fixing this.
>
>Please, do not do this. You can flag them as defective so that someone 
>has a look, but don't delete the tags.
The idea is not to touch defective water surfaces.

>
>Since deleting tags from unclosed ways does not solve anything (and 
>IMHO makes things worse), this should be done manually. It would be a 
>perfect case to enter in maproulette <http://maproulette.org/>

Can you give me an example too ? It's WRONG to have a tag in a way AND in 
a relation.

For example, take this relation:
https://www.openstreetmap.org/relation/5474652
It has:
natural=water
water=lake

and a way:
https://www.openstreetmap.org/way/368404998
which also has:
natural=water
water=lake

and it is WRONG. Only the relation should have these attributes. Where is 
the problem then ?

Thanks,

Frank

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