[Talk-us] What's causing rendering artifacts in the Southeast?

[Dale Puch]

On Wed, Nov 25, 2009 at 4:02 PM, Dale Puch <dale.puch at gmail.com> wrote:

>
>
> On Wed, Nov 25, 2009 at 3:01 PM, Leroy E Leonard <leeoncandler at gmail.com>wrote:
>
>> They seem to be related to water ways. They're more evident in
>> Osmarender and Cycle Map.
>>
>> Here's an example in Virginia:
>>
>>
>> http://www.openstreetmap.org/?lat=36.7445&lon=-80.9081&zoom=14&layers=0B00FTF
>>
>> I'd like to fix them as I come across them, but don't know what to do.
>>
>>  -- Lee
>>
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>>
>
> I'm no expert, but what I can see is that mapnik renders it right and
> osmrender is wrong.  Opening small sections of that area in josm (shading
> areas) also seems to show it wrong until you download the rest of the ways
> that make up the riverbank.
>
> My guess is a missing relations for the riverbanks.  Osmrender and josm
> treat them as open water shorelines.  Josm realizes what is the deal when
> you have more data.  Mapnik seems to deal with it seemlessly.
>
> --
> Dale Puch
>


Oops I spoke too soon.  There is a relation.
http://www.openstreetmap.org/browse/relation/304245
I still think this is the probable source of the problem though.  Perhaps
someone with more experience with relations could take a look?
-- 
Dale Puch
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