Brouhaha: D3 Basics & D3 Mapping

D3 is awesome. When I first saw it, I'd never seen anything like it, and I learned it as quickly as I could so I could sell a client on its use. Even if you know javascript well, it can still take a while to add D3 to your proverbial Bat Belt, so we've put together a two part presentation on 1) the basics of D3 and 2) creating maps with D3.

D3 Basics:

Will Carroll the principal at develop_for is both a developer and designer. He has a background in design and development working with organizations, which include Ogilvy, Razor Fish, National Geographic, National Environmental Education Foundation and the DC Government to name a few. Will focuses on developing for data, data visualizations and web applications to help people understand the data to make better decisions.

D3 Mapping:

Trevor is a full stack developer and designer at Conveyal where he builds transit information software products including visualization tools and journey planning engines.


• Data Viz Workshop: Mapping all the Way, With D3

• Data Science DC: Examining the Shape of Data through Topological Data Analysis

• Data Wranglers DC: Reducing the Pain with (More) Good Tools (Not All) in R

• Statistical Programming DC: Natural Language Processing tools


• 6:30 - Doors open, networking

• 7ish - Introductions & Announcement

• 7:15  - Will Carroll

• 7:45 - Trevor Gerhardt

• 8:15 - Q&A

• 8:45pm - Data Drinks @ Washington Post!


In case you're a little new to D3, it began in 2009 based on Prefuse and Flare, creating Protovis, a JavaScript library to generate SVG graphics from data. In 2011, the development of Protovis evolved into D3.js. Designed to provide a more expressive framework that, at the same time, focused on web standards and provides improved performance (Bostock, Heer & Ogievetsky 2011).


Cloudera, SynglyphX,, General Assembly, Continuum Analytics, TandemNSI

• (Use code 'DC2' and receive 15% off all courses)

If you or your organization would like to donate or sponsor, please feel free to reach us through meetup, @DataVizDC, @DataCommunityDC, or [masked]

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  • Jed S.

    Will this event be recorded / made available online afterwards?

    1 · May 27

  • Lindsay B.

    I second Nico's question about the slides being made available. I wish I could have made it to the meetup.

    May 29

  • Nevin H.

    Probably the best yet in a long line of successful Data Viz presentations, thanks to all who made that happen!!!

    3 · May 29

  • Nico D.

    Thank you so much to the presenters and Sean for their work to put this together.

    Will a copy of the slides be shared?

    May 27

  • Melinda

    the storm kept me away. i really hope that if it wasn't recorded, someone could share their notes!

    4 · May 27

  • Sean Moore G.

    Taylor Gourmet is sponsoring & catering! Sandwiches and potato salad, mmmmmm. Maybe chips?

    4 · May 22

    • William D.

      Do you anticipate vegetarian sandwiches in the mix -- or rather, kept from mixing with the meat options :) ?

      1 · May 26

    • Sean Moore G.

      Yes, we have a veggie option.

      May 26

  • Eric M.

    Is this a bring a six pack type of event?

    1 · May 26

  • shelly k.

    would this be a good event for beginners in DV?

    2 · May 23

    • Fei X.

      Excited about the event. Is there any interaction session during the talk? Do we suppose to take laptops with us?

      1 · May 24

    • Sean Moore G.

      There will be live demonstrations, but no need for your laptop. If you're interested in hands-on, look for more events like this:­

      1 · May 24

  • Lindsay B.

    Scheduling conflict on Tuesdays, but please keep me in the loop!

    1 · May 19

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