Re: [Talk-ca] [Imports] Ottawa, Canada Tree Import

[Kyle Nuttall]

After some data analysis (cheers Denis) we've found about 200 trees that are 
conflicting with buildings. These will obviously need to be handled manually 
which should be an easy task for the local mappers.

The wiki page has been updated accordingly.

Hopefully we've resolved most of the issues as we'd like to get this started by 
Friday.

Happy Canada 150 weekend
Kyle
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Re: [Talk-ca] Multipolygon problems

[Begin Daniel]

Thanks everyone,
Stewart sent me an example I can use ☺
Daniel

From: Begin Daniel [mailto:jfd...@hotmail.com]
Sent: Monday, 3 July, 2017 09:53
To: Alan Richards; Stewart C. Russell
Cc: talk-ca@openstreetmap.org
Subject: Re: [Talk-ca] Multipolygon problems

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:alarob...@gmail.com]
Sent: Monday, 3 July, 2017 00:51
To: Stewart C. Russell
Cc: talk-ca@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 
> 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
 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

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Re: [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:alarob...@gmail.com]
Sent: Monday, 3 July, 2017 00:51
To: Stewart C. Russell
Cc: talk-ca@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 
> 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
 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

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