Meeting Info

Date & time
20 Sep 2017, 6:00pm

University of Washington

UW Anderson Hall, Forest Club room 207

It's the room with the elk in it.

47.651737, -122.30754



Ye olde converstaion about recording meetings. If anyone is interested in helping out - let us know!

Introduction from your President, Andrew Powers

  • Elections are coming up in December - probably aiming for the 13th to avoid being too close to holiday breaks. Never too early to start thinking about your bid!
  • Meetings don’t happen on their own. If you want to hear from a certain person or want to give a talk, we’d love to hear from you.

Metric Geometry and Gerrymandering Group - Mary Solbrig

Mary went to a conference about gerrymandering at Tufts University. All talks are recorded on Youtube - check them out here. It had three components - gerrymandering from the context of:

  1. Math
  2. Law
  3. Civil rights

Specialized tracks:

  • expert witness: train people to testify in gerrymandering cases
  • educators: create teaching materials about gerrymandering
  • GIS/Tech track: develop a community to work on the technology challenges around gerrymandering

Talk topics covered:

  • legal theory
  • civil rights: race and redistricting and the legal framework surrounding it, more about how impact of racial gerrymandering and how important the Voting Rights Act was. You can’t talk about political gerrymandering without talking about racial gerrymandering.
  • courts: is it judicable? you can’t bring things to court unless someone has actually been harmed - can’t be theoretical


  • Megan Gall: the quantitative anatomy of a voting rights case
  • panel: how lines are actually drawn and contested
  • Robert Cheetham: “District builder” open source software for collaborative redistricting - check out the source code here
  • gathering historical election data which is useful for determining “if gerrymandering happened” - here they are on github

FOSS4G overview

Peter’s Notes: here

Julie’s Notes:

MapboxGL Everything is triangles underneath, fonts are tough Variable colors in the same layer! Yeah!!!!!!

Most folks prefer vectors, but there are still reasons to prefer image tiles if you’re dealing with millions of points in a non-interactive way. Faraday was such a company.

Lots of interest in containers, VMs and tools like Ansible for IT management.

Foss4G was WAY too full of white guys. It needs much more diversity.

Printing Ideas: Mapzen has talked about it a bit

Much less presence of Mapbox. They had no booth and only a few speakers. Any idea why?

Vector tile servers are getting easier and easier to create. Soon we may be able to pull vector tiles direct from Postgis!

Folks are interested in redistricting. Azavea and academics especially. Azavea has a system for it, but it has a ton of technical debt since it’s a decade old. Their model is people bringing up versions of their codebase with custom data. My approach is about loading all the data and having one national system.

Riley really loved Richard Stallman’s talk and is going to work on some R Studio and vector tile visualization work soon!

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