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