[OSM-dev] Automatic coastline "smoothing"

[David Groom]

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----- Original Message ----- 
From: "David Groom" <david at dmgroom.wanadoo.co.uk>
To: "David Groom" <reviews at pacific-rim.net>
Sent: Monday, November 12, 2007 1:44 PM
Subject: Re: [OSM-dev] [OSM-talk] Automatic coastline "smoothing"


>
>
> ----- Original Message ----- 
> From: "Frederik Ramm" <frederik at remote.org>
> To: "Alex S." <maps at swavely.com>
> Cc: <dev at openstreetmap.org>; <talk at openstreetmap.org>
> Sent: Monday, November 12, 2007 9:55 AM
> Subject: Re: [OSM-dev] [OSM-talk] Automatic coastline "smoothing"
>
>
> Hi,
>
>>> Has someone put any effort towards the above, and if so, has it
>>> run on
>>> the DB directly or used a sort of bulk uploader for that task?
>>
>> Any chance people can ask that it not be used on certain coastline
>> areas
>> that have already been manually adjusted?
>
> I don't know what kind of smoothing deelkar hat in mind but I'm sure
> that it could be restricted to things tagged "source=PGS" or so.
> Because if you manually adjust something that was originally from a
> PGS source, then you'd remove the source tag or replace it with
> whatever you used as a reference, wouldn't you?
>

Not always, no.  I manually adjusted almost the entire coastline of the UK, 
initially to landsat, and later in many places to Yahoo where available.

It was time consuming enough moving the nodes, without having to retag the 
source (which would I estimate have more than doubled the editing time).  I 
couldn't do a bulk replace of the source tag, as some nodes I left intact.


David


> Bye
> Frederik
>
>