Github for geodata

by Bill Morris for VCGI Oct 28 2014

Follow along at: tinyurl.com/vcgi-github

A practical guide to web-based version control and collaboration for the GIS-inclined

Why use github? What's wrong with ArcSDE/ PostGIS/ Thatendlessbunchoffoldersonmydesktop?

octocat

Free

Backed-up

Versioned

diff

Collaborative

stats

  1. Sign up for a github account

signup

That's it!

(not really; we have some work to do. But is is that easy to get started.)

For good measure, install the github app (aka CodeBeGone)

(for mac & for windows)

Fork this repository

fork

Sync it to your computer

clone

Look at a dataset (try this example)

To add new data, convert from your fave format first. tools:

geojson and topojson - shapefiles for the web

A few options:

Tiny data (<8MB): Use geojson.io

Bigger data (8MB - 100MB): Edit locally and sync using the github app

Big data (>100MB): We're not really there yet.

github pages - web apps, hosted for free

That repository you forked comes with a simple viewing app

updates to data are immediately available in the app

(this can get a lot more complicated, but it doesn't need to)

What's missing?

Geoprocessing (though we're getting there)

Scale - this one might require a paradigm shift

Buy-in

Thanks!

Get in touch with any questions: [email protected] @vtcraghead