[Talk-ca] broken forests in eastern Canada

James james2432 at gmail.com
Tue Aug 30 13:18:14 UTC 2016


He's even going to revert my work:
http://www.openstreetmap.org/changeset/41776742
I've forwarded this to the DWG, it's getting rediculous.

On Tue, Aug 30, 2016 at 9:14 AM, Adam Martin <s.adam.martin at gmail.com>
wrote:

> That's a pretty harsh thing to deal with. Imports are difficult and the
> time needed to get them right is not a small investment. To have someone
> review this work is a valuable service, but I don't think just blanket
> reverting due to the violation of one rule is the solution, especially in
> context of the lack of data in some of those areas. The CANVEC stuff will
> do until surveys or satellite data catches up with those areas.
>
> On Tue, Aug 30, 2016 at 10:35 AM, John Marshall <rps333 at gmail.com> wrote:
>
>> Andrew, I hear you! I have been trying to add data around unmapped
>> Northern Communities around James Bay and Nunavut. But after someone revert
>> some of my work I'm stopping:(
>>
>> John
>>
>> On Tue, Aug 30, 2016 at 8:49 AM, Andrew <andrew.allison at teksavvy.com>
>> wrote:
>>
>>> On Mon, 2016-08-29 at 23:47 -0400, Gordon Dewis wrote:
>>>
>>>
>>> On Aug 29, 2016, at 11:12 PM, Antoine Beaupré <anarcat at orangeseeds.org>
>>> wrote:
>>>
>>> On 2016-08-25 10:13:25, Gordon Dewis wrote:
>>>
>>> Alan is right. I've brought in a few tiles worth of forests from Canvec
>>> in
>>> the area you're talking about, but they were non-trivial to deal with
>>> compared to most other features. I kept running into limits in the tools
>>> I
>>> was using at the time and I haven't returned to them since.
>>>
>>>
>>> Yeah, that's what I figured.... I hope my comment didn't come across as
>>> criticizing the work that was done importing that data into OSM - I know
>>> how challenging and frustrating that work can be.
>>>
>>> But I must admit it seems a little rough to have those patches up
>>> there. I don't mind the "seams" between the CANVEC imported blocks,
>>> which don't seem to show up on the main map anymore anyways. But
>>> the *missing* blocks are really problematic and confusing. And they show
>>> up not only all the way up north and in weird places, but in critical
>>> areas. for example, here's a blank spot right north of Canada's capital:
>>>
>>> http://osm.org/go/cIhYCSU-?m=
>>>
>>> It seems a whole area was just not imported up there... oops! This shows
>>> up here and there in seemingly random places.
>>>
>>>
>>> Whoever was working on it was probably struggling with the tiles and
>>> subtitles in Canvec and threw in the towel. I was working on the forests
>>> around Golden Lake, for example, and ran into problems and limitations with
>>> the tools I was using at the time. I would love to import more, but it’s a
>>> daunting task.
>>>
>>> Another problem I noticed is when trying to merge “new” forests with
>>> existing forests was the existing forests would disappear because the
>>> topology changed, similar to problems you can see with lakes and islands.
>>> That alone was enough to make me back off and undo the inadvertent damage.
>>>
>>> I wonder if it wouldn't be better to remove parts of the CANVEC import
>>> until we can figure out how to better import them in the future, if, of
>>> course, we have a documented way of restoring the state of affairs we
>>> have now... As was mentionned elsewhere, it seems to me that the data
>>> that is there now somewhat makes it more difficult to go forward and
>>> hides more important data (like park boundaries).
>>>
>>>
>>> Unless the parts of Canvec are going to be replaced with more
>>> comprehensive coverage, I think that removing the existing forests would
>>> not be a Good Thing.
>>>
>>> I believe it would be more important to map out park boundaries than
>>> actual forest limits which, quite unfortunately, change in pretty
>>> dramatic ways in Québec, due to massive logging that has been happening
>>> for decades.
>>>
>>>
>>> Park boundaries are mostly in already, aren’t they? They are fairly easy
>>> features to import compared to forests.
>>>
>>>
>>> Tell you what, I do what I can to import the data, and fill in the gaps.
>>>
>>> I stopped importing data about a year ago, my skin just wasn't thick
>>> enough.
>>>
>>>
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>>>
>>>
>>
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-- 
外に遊びに行こう!
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