[Talk-ca] Multipolygon problems

[Begin Daniel]

If someone could provide me with an example of a relatively small, untouched multipolygon imported directly from Canvec having the problem, I could make some tests and sent it to FME to have their translator corrected if I can reproduce the problem.

Daniel

From: Alan Richards [mailto:alarobric at gmail.com]
Sent: Monday, 3 July, 2017 00:51
To: Stewart C. Russell
Cc: talk-ca at openstreetmap.org
Subject: Re: [Talk-ca] Multipolygon problems

Thanks for a good workflow - I cleared up 8 so far pretty quickly around Hope, BC. There's a bunch in a cluster around Merritt too. I'm guessing it's certain imports or import authors vs others that makes the difference.

alarobric

On Sun, Jul 2, 2017 at 3:40 PM, Stewart C. Russell <scruss at gmail.com<mailto:scruss at gmail.com>> wrote:
On 2017-07-02 04:41 PM, Begin Daniel wrote:
>
> However, since the same translator was used for all the polygons, the
> problem should also appear on water bodies, etc. The problem may have
> been related to the complexity of the polygons to convert.

Hi Daniel - yes, I'm seeing a bunch of water relations with the same
problem, such as on the Grand River
<https://www.openstreetmap.org/relation/576317> and also parts of the
Speed near Guelph. Some of these data were imported from Canvec 10.

> I also found that JOSM had similar problems with tag transfers a few
> years ago (1). Maybe some of the problems found result from merging
> nearby wooded areas?
>
> Daniel
>
> (1) https://josm.openstreetmap.de/ticket/9832.

Interesting, but I'm seeing a lot of the problem water relations
worldwide (well, Scotland and Germany) where JOSM wasn't involved. So
while the JOSM issue might have contributed a little, there were other
factors in play. Indeed, I've even seen changesets (such as 5735148 from
Sep 2010) where the editor had to duplicate the relation tag in the
outer way to get the inner features to render!

cheers,
 Stewart

_______________________________________________
Talk-ca mailing list
Talk-ca at openstreetmap.org<mailto:Talk-ca at openstreetmap.org>
https://lists.openstreetmap.org/listinfo/talk-ca

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-ca/attachments/20170703/433a5fe6/attachment.html>