Albert Decatur (albert.decatur@gmail.com)
web mapping and open source GIS
why is web mapping important?
group collaboration is
more powerful than
individual
achievement
1
draftsman’s work, 1937
many hours, one map 2
OpenStreetMap, 2010
200,000 contributors, one map 3
I, Pencil
I, Pencil
"No one person . . . could
create from scratch a small,
everyday pencil, let alone a
car or an airplane."
- Leon...
why is open source important?
why is open source important?
"Given enough eyeballs, all
bugs are shallow."
- Eric S. Raymond,
co-founder of the Open
Sou...
why is open source important?
free beer
why is open source important?
free speech
why is open source important?
“Think free as in free
speech, not free beer.”
- Richard Stallman, founder
of the Free Softw...
who uses open source?
90% of supercomputers
60% of internet servers
30% of smart phones
11
who uses open source GIS?
ESRI
IDRISI
ERDAS
Google
many others . . .
12
why should you use it?
portable
dependable
free
13
make a heatmap of Wikipedia article word length
demo: Wikipedia in Hawaii
14
demo: Wikipedia in Hawaii
Let’s see this in action:
1. Run a script
2. Run commands on the
output
3. Add to a server
4. Di...
demo: Wikipedia in Hawaii
script to retrieve georeferenced Wikipedia articles, their
abstracts, and word count 16
demo: Wikipedia in Hawaii
heatmap of Wikipedia article word length
17
demo: Wikipedia in Hawaii
we will use these
18
on to the demo . . .
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Web Mapping and Open Source GIS

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Why open source GIS matters, why you should use it, and what it can do.

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  • Drafted by Obert, D.D., 1937, development plans for Fort Parker State Park, TX (public domain)
  • Haiti earthquake, Jan 2010 -> 230,000 dead. Two days for OSM volunteers to produce most comprehensive digital streetmap of Port-au-Prince ever made.
  • Elke Wetzig, Creative Commons CC-BY-SA-3.0 , http://commons.wikimedia.org/wiki/File:WPC-Bleistift_2009.jpg
  • http://fee.org/library/books/i-pencil-2/
  • http://www.flickr.com/photos/statelibraryofnsw/4326860286/sizes/z/in/photostream/, Ed E. Ford, comedian, at the Tivoli Theatre, Sydney, ca. 1914 / photographer unknown
  • http://www.flickr.com/photos/galt-museum/3400226028/, flickr creative commons, “Photograph is an early advertisement for the Lethbridge Brewing and Malting Company depicts Fritz Sick inside a bottle of Alberta's Pride Beer. Caption below the bottle a smile in every bottle.”
  • http://loc.gov/pictures/resource/ggbain.12470/, US Library of Congress, Bain News Service,, publisher.
  • http://www.gnu.org/philosophy/free-sw.html
  • http://www.top500.org/stats/list/35/osfam, http://www.gartner.com/it/page.jsp?id=1466313, http://www.pcworld.com/businesscenter/article/151568/ballmer_still_searching_for_an_answer_to_google.html
  • Web Mapping and Open Source GIS

    1. 1. Albert Decatur (albert.decatur@gmail.com) web mapping and open source GIS
    2. 2. why is web mapping important? group collaboration is more powerful than individual achievement 1
    3. 3. draftsman’s work, 1937 many hours, one map 2
    4. 4. OpenStreetMap, 2010 200,000 contributors, one map 3
    5. 5. I, Pencil
    6. 6. I, Pencil "No one person . . . could create from scratch a small, everyday pencil, let alone a car or an airplane." - Leonard Read, 1958 5
    7. 7. why is open source important?
    8. 8. why is open source important? "Given enough eyeballs, all bugs are shallow." - Eric S. Raymond, co-founder of the Open Source Initiative 7
    9. 9. why is open source important? free beer
    10. 10. why is open source important? free speech
    11. 11. why is open source important? “Think free as in free speech, not free beer.” - Richard Stallman, founder of the Free Software Foundation 10
    12. 12. who uses open source? 90% of supercomputers 60% of internet servers 30% of smart phones 11
    13. 13. who uses open source GIS? ESRI IDRISI ERDAS Google many others . . . 12
    14. 14. why should you use it? portable dependable free 13
    15. 15. make a heatmap of Wikipedia article word length demo: Wikipedia in Hawaii 14
    16. 16. demo: Wikipedia in Hawaii Let’s see this in action: 1. Run a script 2. Run commands on the output 3. Add to a server 4. Display from the server make a heatmap of Wikipedia article word length 15
    17. 17. demo: Wikipedia in Hawaii script to retrieve georeferenced Wikipedia articles, their abstracts, and word count 16
    18. 18. demo: Wikipedia in Hawaii heatmap of Wikipedia article word length 17
    19. 19. demo: Wikipedia in Hawaii we will use these 18
    20. 20. on to the demo . . .

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