[OSM-talk] Invisible coastline errors in Potlatch

Peter Miller peter.miller at itoworld.com
Tue Jan 6 10:00:13 GMT 2009

On 6 Jan 2009, at 06:45, Richard Fairhurst wrote:

> Roman Neumüller wrote:
>> I occasioanlly open hires areas in JOSM when stumbling over
>> them. Boy: what a whole bunch of errors one then starts to
>> fix...! All potlatch-related I suppose (sorry Rich ;-)
> I'd prefer (<mandy rice-davies>well, I would, wouldn't I</mandy
> rice-davies>) "all n00b-related". Blaming the editor is just  
> neglecting our
> social requirement to help the new guys: plenty of people perform  
> excellent
> edits in Potlatch and plenty perform lousy ones in JOSM.

Potlatch does sometime create duplicate ways for me when I splits  
features. These duplicates are invisible using Potlatch and the  
quantity of them varies from occasion to occasion. Sometimes one ends  
up with the new ones and the old one, or the old (long) way and one  
new one on top - something like that but sometimes everything is ok. I  
have come to the conclusion that the updates are not monotonic  
resulting in these effects sometimes when servers are busy. Is this a  
real effect?

If one does have two ways on top of each other with identical tagging  
then one can't see them which is a shame and makes it much harder to  
sort out. The problem is made worse because it is not always possible  
to find out how many ways there are using the '/'
t feature which only seems to work sometimes, and only works on the  
end node of an underlying way (I think).

The fact that errors are invisible in Potlatch and that the editor  
creates them itself in the server communication (I think) is something  
we should address technically - it is not a training issue for newbies.

Will API0.6 help? Oh, and was API0.6 actually been deployed on New  
Years day or whenever?

Generally speaking, there are annoyances and small issues all over the  
tool base (not just Potlatch) and getting the tools working as  
advertised and easily for newbies would be very helpful to them. I  
don't use JOSM so I can't comment on that editor.



> cheers
> Richard
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