Re: [Talk-us] user damages administrative boundaries around Rapid City

2015-03-26 Thread Greg Morgan
On Wed, Mar 25, 2015 at 3:13 PM, arch_a...@t-online.de 
arch_a...@t-online.de wrote:

 Hello,

 I've detected a user who damages administrative boundaries around Rapid
 City. I've tried to contact the user but I got no reaction. I've told the
 mapper that iD editor is inappropriate, as it has no built in validator but
 he didn't stop the edits.

 I want to ask someone from the US to take care of the case and to involve
 the Data Working Group if necessary.




 There may be also other damaged objects.


http://hdyc.neis-one.org/?gm360st

Pascal says: 302 project days; 117 mapping days; ... the last modifier of
28k nodes using Potlach and iD using 3,936 change sets.  In my book,
gm360st is a valuable young mapping resource more so than a couple of
broken polygons.  The last thing that I would want to do is involve the
Data Working Group.  The bar has been purposely lowered to include and
attract new mappers via the iD editor.  iD is gm360st's editor of choice.
There are a number of tools to correct these issues.  At this point in time
I wouldn't even follow the mapper and correct the problems.

The real question is how do you gently grow a young mapper like this
without alienating the valuable resource?

Regards,
Greg
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Re: [Talk-us] user damages administrative boundaries around Rapid City

2015-03-26 Thread Serge Wroclawski
On Thu, Mar 26, 2015 at 4:21 AM, Greg Morgan dr.kludge...@gmail.com wrote:

 The last thing that I would want to do is involve the Data
 Working Group.

I'm sending this mail as a DWG member- but I'm only speaking for
myself, and not on behalf of the DWG.


I don't think most people realize that the DWG will often get
complaints, and usually don't take administrative action. It's quite
frequent that we get a complaint, and our resolution to the matter is
to mediate a disagreement, or focus on education of one or more
mappers.

Most of the time a resolution can be found without needing to take any
official DWG actions. The DWG member's role in those situations is as
a third party who can come in, hear everyone's side, and try to find a
resolution that works for all parties.

In fact, I think that one thing the DWG members would like is if more
mappers took time to try to find another solution before contacting
the DWG. Many times we'll get a complaint from one user about another
mapper's mapping practices and the person complaining hasn't used
changeset discussions to, or in some cases even having send someone an
in-system message. In other words, the person being complained about
may not even know that there's someone whose upset.

Reaching out to your fellow mapper should your first step in any
conflict resolution. If that doesn't work, the DWG is there to help,
and you should feel free to contact them.

The DWG email address is d...@osmfoundation.org

- Serge

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Re: [Talk-us] Elevation in local units

2015-03-26 Thread Lars Ahlzen

On 03/25/2015 01:43 AM, Bryce Nesbitt wrote:


  * I feel that osm convention should encourage all mappers to specify
units (e.g. 22 m).
  * That whitespace should be allowed (e.g. 22m, 22 m, or even 22 meters).
  * And that local units should be encouraged (e.g. 22 feet, or 22' 0).

The wiki templates, if spruced up, could define the rules uniformly 
for all keys that take a measurement unit

(e.g. height, width, ele, max_height, etc).
--
Parsers are cheap.  Any parser worth using can convert 22m, 22 m, 22 
feet or a variety of reasonable variants.

Humans are messy.  Forcing them into boxes generally goes badly.


+1

As much as wish meters were used everywhere, I'd rather make it easier 
for contributors by letting them use whatever make sense to them, and 
worry about unit conversion later. Especially in this case, where 
mechanical conversion is so easy. If the elevation was surveyed in feet, 
entering it in m will almost always result in loss of precision.


For my own maps, such as [1], I use a simple osm2pgsql lua script [2] 
that does various preprocessing, including converting all ele and width 
tags to feet. It's fairly liberal in the formats it accepts for values.


By the way, I thought that the wiki page for ele *used* to say that 
other units than m were acceptable (if explicitly specified) but I may 
be confusing it with something else, like width?


[1] http://toposm.ahlzen.com/hikemap.html
[2] https://github.com/Ahlzen/Hikemap/blob/master/hikemap_tagtransform.lua

- Lars


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Re: [Talk-us] user damages administrative boundaries around Rapid City

2015-03-26 Thread Minh Nguyen
arch_arch@... arch_arch@... writes:

 I've detected a user who damages administrative boundaries around Rapid
City. I've tried to contact the
 user but I got no reaction. I've told the mapper that iD editor is
inappropriate, as it has no built in
 validator but he didn't stop the edits.
 
 I want to ask someone from the US to take care of the case and to involve
the Data Working Group if necessary.
 
 This boundary got deleted: http://www.openstreetmap.org/relation/194816
 invalid geometry: http://www.openstreetmap.org/relation/195005
 invalid geometry: http://www.openstreetmap.org/relation/194808
 deleted relation: http://www.openstreetmap.org/relation/194807

It's clear that the user simply meant to remove the CDP boundaries (194816
and 194807), an action that many of us on this list (but maybe not all)
would approve of. [1] Unfortunately, the user removed the CDP boundaries by
deleting all the ways that belong to the CDP's relation, roping in members
of neighboring non-CDP boundary relations.

The good news is that Richard Fairhurst patched iD to prevent errors like
this in the future. [2] The bad news is that the fix didn't make it into
1.7.0, the version currently on osm.org. So in the meantime we'll have to
rely on user education.

Echoing Greg's comments, even experienced mappers sometimes hop into iD or
Potlatch to make quick edits. These editors may not be as mature as JOSM
when it comes to relations, but it isn't necessary to dismiss them out of
hand. When it comes to educating new mappers about data entry errors, I've
found them to be more receptive to messages like please be careful; here's
what to watch out for.

Thanks for bringing up this topic. It's an opportunity to remind mappers new
and old to review their changesets before saving. iD's save panel lists
changes along with validator warnings for some common errors. [3] If iD's
validator is missing a check you consider useful, I'm sure the developers
would appreciate a bug report. [4]

[1] For example, see this thread:
https://lists.openstreetmap.org/pipermail/talk-us/2015-January/014075.html
[2] https://github.com/openstreetmap/iD/pull/2526
[3] https://github.com/openstreetmap/iD/blob/master/js/id/validate.js
[4] https://github.com/openstreetmap/iD/issues


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Re: [Talk-us] Elevation in local units

2015-03-26 Thread Bryce Nesbitt
On Thu, Mar 26, 2015 at 2:44 PM, Lars Ahlzen l...@ahlzen.com wrote:

 By the way, I thought that the wiki page for ele *used* to say that other
 units than m were acceptable (if explicitly specified) but I may be
 confusing it with something else, like width?

FYI: There's a wiki template that could be extended to give consistency to
unit rules, wiki wide.
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