Communities of Authority
Aaron Straup Cope State of the Map July 2009

INVISIBLE REVEREND!
Hi, my name is Aaron

August 2006

July 2009
top 100 geotagged countries, July 04 2009

July 2008

Coverage

[redacted]

What Would Mike Do?

ModestMaps

for i in range(10, 18)

Beijing

Burning Man

Sydney

Baghdad

Tokyo

Africa

Tehran

“Eyes of the World”

How does it work?

python ~/fetch_tiles.py -p africa.txt -o ~/osm
scp (my harddrive)
YOU! squid Flickr image storage
php map_openstreetmap_tile_broker.gne
javascript var is_osm

if not os.path.exists(cache_dir) :
try:
os.makedirs(cache_dir)
except Exception, e:
print "failed to makedirs, skipping because it's probably a thread thing..."
continue
conn = httplib.HTTPConnection(netloc)
conn.request('GET', path + ('?' + query).rstrip('?'))
response = conn.getresponse()
if str(response.status).startswith('2'):
tile_img = PIL.Image.open(StringIO.StringIO(response.read())).convert('RGBA')
tile_img.save(cache_file)
# imgs.append(tile_img)

http://farm2.hv-static.flickr.com/1010/temp/osm/
12/3374/1551.png
HTTP 302
http://www.flickr.com/map_openstreetmap_tile_broker.gne?t=m&
x=3374&y=496&z=6

“The tricky part was with the Yahoo Maps ... in that you can only
check to see if you're *in* a valid OSM area, *after* you've zoomed/
moved the map, not *before* ('cause you don't know where the map
is *about* to move to) ... but *after* you've zoomed/moved the map is
already loading in new tiles ... so you need to tell it 'STOP, wait, don't
load those, load these OSM ones instead' ... and in the case of Yahoo
Maps that meant using a undocumented function that blows away
the tile cache and forces a tile reload.”

Whatʼs next?

History boxes

Story tiles

“Design Fiction”

Thank you

http://www.flickr.com/photos/straup/3499211238/
http://www.flickr.com/photos/jfisher/3470989295/
http://www.flickr.com/photos/straup/3460129472/
http://www.aaronland.info/topplaces/
http://www.flickr.com/photos/pigdump/2415110072/
http://www.flickr.com/photos/russelldavies/3431296437/
http://www.flickr.com/photos/laloyd/3471339837/
http://www.flickr.com/photos/tom-carden/1238044507/
http://www.modestmaps.com
http://www.flickr.com/photos/mroth/2242281931/
http://blog.flickr.net/en/2008/08/12/around-the-world-and-back-again/
http://www.flickr.com/map?&fLat=39.9357&fLon=116.3745&zl=7
http://www.flickr.com/map?&fLat=40.7795&fLon=-119.2136&zl=2&order_by=recent
http://www.flickr.com/map?&fLat=-33.8866&fLon=151.1602&zl=7
http://www.flickr.com/map?&fLat=35.5487&fLon=139.7845&zl=5
http://www.flickr.com/photos/straup/3504929546/
http://code.flickr.com/blog/2009/02/13/changelog-yahoo-updated-map-tiles-and-some-osm-ones/
http://www.opengeodata.org/?p=377
http://www.flickr.com/map?&fLat=35.7047&fLon=51.414&zl=7
http://www.flickr.com/photos/kellan/2883459596
http://blog.flickr.net/en/2006/03/24/eyes-of-the-world/
http://www.flickr.com/photos/straup/3367414667
(this is how the sausage is made)
http://www.flickr.com/photos/xxxlibris/3093848124/
http://www.flickr.com/photos/adactio/3563817624/
http://walking-papers.org/scan.php?id=kcd9fxp9
http://www.aaronland.info/weblog/2009/03/14/buckets/#etech09
http://www.nearfuturelaboratory.com/2009/03/17/design-fiction-a-short-essay-on-design-science-fact-and-fiction/
http://www.flickr.com/photos/louiseklinker/2962173347/
http://www.aaronland.info/talks