Okay, so I didn't do the density thing yet, but I've made some other additions
to the TIGER green map that I think are worth mentioning.
I squashed the greens and inverted the blacks so that the map is more legible,
potentially easier to print, and less confusing in the difference between the
no-editors and yes-editors areas. The URLs are all still the same and the map
is here:
http://www.openstreetmap.us/~migurski/green-means-go/
If you see any black tiles, clear your cache. The old version is now here:
http://www.openstreetmap.us/~migurski/green-means-go-2013-01-03/
I'm starting to add SEO-friendly, single-geography views. I'm just getting
started, using counties at first. Every county in the lower 48 will be
accessible via a URL like one of these:
http://www.openstreetmap.us/~migurski/green-means-go/Iowa/O'Brien-County.html
http://www.openstreetmap.us/~migurski/green-means-go/California/Alameda-County.html
http://www.openstreetmap.us/~migurski/green-means-go/Illinois/Cook-County.html
http://www.openstreetmap.us/~migurski/green-means-go/California/San-Bernardino-County.html
http://www.openstreetmap.us/~migurski/green-means-go/California/Riverside-County.html
http://www.openstreetmap.us/~migurski/green-means-go/Arizona/Coconino-County.html
http://www.openstreetmap.us/~migurski/green-means-go/Louisiana/East-Baton-Rouge-Parish.html
http://www.openstreetmap.us/~migurski/green-means-go/New-York/New-York-County.html
http://www.openstreetmap.us/~migurski/green-means-go/Virginia/Falls-Church-city.html
The county views are open to suggestions, and quite low on detail for the
moment. What should go on there?
-mike.
On Jan 6, 2013, at 5:51 PM, Michal Migurski wrote:
> Thanks Steve!
>
> I think that would be possible, yeah. I already use object density as one of
> the inputs here, and could use it to tweak the greens somewhat. The colors
> need a second pass.
>
> -mike.
>
> On Jan 4, 2013, at 3:00 PM, Steve Coast wrote:
>
>> Mike
>>
>> Nice.
>>
>> Could you use relative object density per little square as a proxy for
>> population density?
>>
>> I ask because all the bright green areas near me are forests or old milk
>> farms. I don’t care. I want to see high density areas and attack those as a
>> priority since that’s where people are and where they go...
>>
>> Steve
>>
>> From: Michal Migurski <m...@teczno.com>
>> Sent: January 3, 2013 7:03 PM
>> To: OpenStreetMap US Talk <talk-us@openstreetmap.org>
>> Subject: Re: [Talk-us] More on TIGER: Where it's likely safe to import
>>
>> On Dec 17, 2012, at 12:40 PM, Michal Migurski wrote:
>>
>>> On Dec 16, 2012, at 8:32 PM, Martijn van Exel wrote:
>>>
>>>> Have you looked into full history planet parsing to get a fuller
>>>> picture of editing history? I took a stab at full history user metrics
>>>> some time ago using osmjs;
>>>> https://github.com/mvexel/OSMQualityMetrics/blob/master/UserStats.js -
>>>> this produces one set of metrics for the entire .osh file you feed it
>>>> but it may prove useful for future work. I haven't touched this in a
>>>> while but it should still work :/
>>>
>>> I have downloaded a copy and given it a beginning look. I'm new to parsing
>>> things of that magnitude; my first thought was to use the full history file
>>> for creations/modifications/deletions on nodes and add that to what I'm
>>> doing already for ways on the osm2pgsql tables. Does that sound reasonable?
>>
>> Over the holiday break, I've been grinding through the full history file.
>> I'll write more about the process and publish some raw data, but the short
>> version is that I've replaced the Green Means Go tiles with new versions
>> that incorporate edits to the underlying nodes, address some of the feedback
>> I've received, and show a slightly different map of the US.
>>
>> New map:
>> http://www.openstreetmap.us/~migurski/green-means-go/
>>
>> Old map:
>> http://www.openstreetmap.us/~migurski/green-means-go-2012-12-16/
>>
>> Charlotte Wolter and NE2 both pointed out that Florida should see a lot more
>> post-import editing that I had originally shown, and in fact that's what the
>> map now shows:
>>
>> http://www.openstreetmap.us/~migurski/green-means-go/#9/28.3213/-81.6257
>>
>> http://www.openstreetmap.us/~migurski/green-means-go-2012-12-16/#9/28.3213/-81.6257
>>
>> Urban fringe areas also show more edits, making them less attractive targets
>> for blind imports:
>>
>> http://www.openstreetmap.us/~migurski/green-means-go/#10/37.7707/-122.3451
>>
>> http://www.openstreetmap.us/~migurski/green-means-go-2012-12-16/#10/37.7707/-122.3451
>>
>> I've also stripped away the US coastal territory based on NLCD water
>> designation, per SteveC's suggestion.
>>
>> These massive edits to counties in Pennsylvania are interesting to me:
>> http://www.openstreetmap.us/~migurski/green-means-go/#8/40.918/-77.146
>>
>> -mike.
>>
>> ----------------------------------------------------------------
>> michal migurski- contact info and pgp key:
>> sf/ca http://mike.teczno.com/contact.html
>>
>>
>>
>>
>>
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>
>
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