web mapping and open source gis
DESCRIPTION
Why open source GIS matters, why you should use it, and what it can do.TRANSCRIPT
why is web mapping important?
group collaboration is more powerful than individual achievement
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draftsman’s work, 1937
many hours, one map2
OpenStreetMap, 2010
200,000 contributors, one map3
I, Pencil
I, Pencil
"No one person . . . could create from scratch a small, everyday pencil, let alone a car or an airplane."
- Leonard Read, 1958
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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 Source Initiative
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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 Software Foundation
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who uses open source?
90% of supercomputers60% of internet servers30% of smart phones
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who uses open source GIS?
ESRIIDRISIERDASGooglemany others . . .
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why should you use it?
portabledependablefree
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make a heatmap of Wikipedia article word length
demo: Wikipedia in Hawaii
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demo: Wikipedia in Hawaii
Let’s see this in action:1. Run a script2. Run commands on the
output3. Add to a server4. Display from the server
make a heatmap of Wikipedia article word length15
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 length17
demo: Wikipedia in Hawaii
we will use these18
on to the demo . . .