[Talk-us] Mapping Party in NYC Next Sunday

2013-05-18 Thread Serge Wroclawski
Hey all,

Just in case anyone here is in/around NYC and isn't aware of the
mapping party next week:

http://www.meetup.com/osm-nyc/events/118375942/

Whether you're a new mapper or an experienced mapper, you should join us!

- Serge

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Re: [Talk-us] Admin boundary level quirk in NYC

2013-05-18 Thread Greg Troxel

  So I propose a different schema:

  New York Boroughs: 9
  Cities (incl. NYC): 8
  Counties: 6

  and have separate relations for the counties and boroughs (e.g. Brooklyn
  and Kings County), sharing the same ways.

Your proposal sounds entirely reasonable to me.  The notion that cities
are contained within a county is baked into the hierarchical
organization, and something has to give when that isn't true.  Letting
the hierarchy not line up seems better than choosing different levels.

In the old way, there's the awkward question about how L5 should be
rendered, and why it should look different than L8, and that's all
unnnecessary mess.

Your proposal defers the interesting choice to the renderer, which is
whether one cares about counties or boroughs, but such deferring is in
my view a feature.



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Re: [Talk-us] Admin boundary level quirk in NYC

2013-05-18 Thread Serge Wroclawski
Clay,

Thank you for bringing this up. I have a number of thoughts on this
issue, so it may take me a bit to get to the proposal in your email.

First, I think that this is a good illustration of why some of us
would like all administrative data taken out of OSM and moved into
another dataset. The maintenance of it is quite complex and even in
areas where it seems objective, is not.

Secondly, I think for any major area change, such as this, I'd like to
suggest you touch base with the OSM US Import Committee, even though
this is not an import, it will have similar effects as one (effecting
a large, very populated area in many ways).

Thirdly. I'd like to suggest you meet with other OSMers in NYC to
discuss. Since we're having a mapping party next weekend, this seems
like a good time to introduce yourself and discuss this proposal.

Fourthly, I'm going to assume that your proposal is *just* to change
NYC and the 5 boroughs, right? If not, then this needs discussion on a
larger scale.

Fifth, I have some concerns about granularity. By doing this, you've
effectively made admin level 10 the last usable admin level that we
currently measure. In your NYC example, 9 becomes the borough, but
that means 10 has to be neighborhoods on a very gross level. For
example, do you differentiate between Greenwich Village''s West and
East Village? I certainly do, and I think most New Yorkers would, but
they're both part of the Village itself.

My other big question is What does this solve?, in other words, what
problem are you seeing that needs correction by this action?

- Serge

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Re: [Talk-us] Admin boundary level quirk in NYC

2013-05-18 Thread John F. Eldredge
You might want to take a look at how Virginia is mapped.  Cities in Virginia 
are not considered to be subordinate to counties, even if surrounded on all 
sides by a county.  Towns, on the other hand, are subordinate to, and part of, 
counties.


Greg Troxel g...@ir.bbn.com wrote:
 
   So I propose a different schema:
 
   New York Boroughs: 9
   Cities (incl. NYC): 8
   Counties: 6
 
 and have separate relations for the counties and boroughs (e.g.
 Brooklyn
   and Kings County), sharing the same ways.
 
 Your proposal sounds entirely reasonable to me.  The notion that
 cities
 are contained within a county is baked into the hierarchical
 organization, and something has to give when that isn't true.  Letting
 the hierarchy not line up seems better than choosing different levels.
 
 In the old way, there's the awkward question about how L5 should be
 rendered, and why it should look different than L8, and that's all
 unnnecessary mess.
 
 Your proposal defers the interesting choice to the renderer, which is
 whether one cares about counties or boroughs, but such deferring is in
 my view a feature.
 
 
 
 
 
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Reserve your right to think, for even to think wrongly is better than not to 
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[Talk-us] MassGIS L3 Parcel Layer updated

2013-05-18 Thread Jason Remillard
Hi,

The Massachusetts L3 parcel imaging layer has been updated. 10 new
towns were added by MassGIS on 4/25. 321 of 351 towns are now covered.

If you use JOSM for map editing in MA and have not yet tried the
parcel layer, you just need to update the image sources, activate it,
and restart.

Thanks
Jason.

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