[Talk-ca] broken forests in eastern Canada

[Adam Martin]

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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