Spatial Paralysis
ELI5: Discrete Global Grid System (DGGS)
January 14, 2021Discrete Global Grids (DGGs) are imaginary mosaics that divide up the surface of a globe. We call each piece of the mosaic a "cell" or "zone…
Recently
July 30, 2019Reading Whitcoulls, a major bookstore chain in New Zealand, decided to stop selling Jordan Petersen's book 12 Rules for Life following the…
GIS StackExchange Improvement Tip #1
December 10, 2018A quick tip to improve your experience with GIS StackExchange, or any StackExchange site for that matter. "Watched Tags" and "Ignored Tags…
Gatsby Blog
December 08, 2018I've just obtained the spatialparalysis.xyz domain. I'm going to move my blog here from my old blog/portfolio website (nearimprov.com). I…
NZ Traffic Dashboard
December 31, 2017This is an old post, that I'm using to iron out any issues I have importing old content. Looking back at my ambitions for 2017 in early…
Crash Analysis System: The Narrative Arc
April 28, 2016For several years, up until at least June 2015, the New Zealand Transport Agency (NZTA) published the data underlying their Crash Analysis…
Geodata web services
January 16, 2016Bill Dollins has a downright useful tutorial over on his blog for building a straightforward geodata service with Node, Express, PostgreSQL…
3D spatial indexes in PostGIS
December 19, 2015I have just watched Paul Ramsay's (CartoDB) breakout presentation from PGConf Silicon Valley 2015. I love watching these kinds of videos…
Vector fields of population travel demand
December 06, 2015I just finished reading an interesting paper by Xintao Liu and colleagues entitled Time-geographic relationships between vector fields of…
Algorithms Group at Eindhoven University of Technology
November 29, 2015I recently stumbled across the webpage for the (spatial/geometric/cartograhic) Algorithms Group at Technische Universiteit Eindhoven…
New Zealand Spatial Excellence Awards
November 19, 2015I have just returned from the New Zealand Spatial Excellence Awards for 2015. I was awarded the Postgraduate Student of the Year Award. I'm…
GeoServer Quickstart with Docker
November 01, 2015I've been exploring GeoServer recently, while also doing the same with Docker. I figured I'd share a simple Dockerfile I wrote for getting…
Spatial isn't that special
November 01, 2015This may be a strange thing for me to say, given that my postgraduate qualification, and profession is in geographic information systems…
Parallel geocoding in Python with geopy
September 10, 2015Geocoding: the process of taking an address as a piece of semi-structured text, and returning a coordinate somewhere on the surface of the…
Mediawatch on the role of data journalism
July 04, 2015A very interesting interview with Harkanwal Singh, the New Zealand Herald Data Editor.
Landsat 8 Mosaic
June 22, 2015I noticed this Tweet today, and thought it was such a great example of good a well-designed interface, and actually useful tool. I felt I…
The things you see on a journey
June 01, 2015"What you'll be making: identifying the land that you can feasibly see from the train in the central plateau of New Zealand. Some moons ago…
What is a headway?
June 17, 2014A headway, as used in transit planning and modelling, is typically defined as the time between consecutive services. If you catch a bus that…
Commuting and dropping the kids off at school
June 13, 2014I have recently been fortunate enough to gain access to the real-time information (RTI) for buses and trains in the Wellington region. This…
Global Isochrone Travel Time from London (1881)
June 13, 2014Here's an interesting historical map that turned up on /r/MapPorn today. Made by Francis Galton for the Proceedings of the Royal Geographic…
One Day in Montréal
June 12, 2014This video of Montréal's transit system fell across my path today, made by Colin Stewart and Ahmed El-Geneidy at McGill University's School…