The latest outputs from researchers, alumni and friends at the UCL Centre for Advanced Spatial Analysis (CASA).
Last week I was at FOSS4G (Free and Open Source Software for Geo) 2019 conference, in Bucharest, Romania. It was the second time I had attended the global conference, the first being back in 2013 in Nottingham. There are also country and region “mini” versions of the conference, including FOSS4G UK which I have also … Continue reading FOSS4G 2019 →
Continue reading »I attended and presented at the FOSS4G UK conference in central London, in early March. I was scheduled to present in the cartography track, near the end of the conference, and it ended up being an excellent session, the other speakers being Charley Glynn, digital cartographer extraordinaire from the Ordnance Survey, who talked on “The … Continue reading FOSS4G UK 2018 Meeting and OpenLayers 4 →
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Cross-posted from the DataShine blog. Here’s a little visualisation created with the DataShine platform. It’s the DataShine Commute map, adapted to show online cycle flows, but all of them at once – so you don’t need to click on a location to see the flow lines. I’ve also added colour to show direction. Flows in … Continue reading The Great British Bike to Work →
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The Tube Line Closure Map accesses Transport for London’s REST API for line disruption information (both live and planned) and uses the information there to animate a geographical vector map of the network, showing closed sections as lines flashing dots, with solid lines for unaffected parts. The idea is similar to TfL’s official disruption map, … Continue reading Tube Line Closure Map →
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When I first moved to UCL CASA back in 2010, the first online map I created from scratch was one showing swings in the general election that year. So it seemed fitting to update the old code with the data from the 2015 general election, which took place last week. You can see the resulting … Continue reading General Election Maps for 2015 →
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I’ve created an Election 2015 Time Map which maps the estimated declaration times that the Press Association have published. It follows on from a similar map of the Scottish independence referendum. Each constituency is represented by a circle which is roughly in its centre (using a longest-interior-vertex centroid determined in QGIS). The area of the … Continue reading Election Time! →
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GeoComputation: A Practical Primer, edited by Profs Chris Brunsdon and Alex Singleton, has just been published by SAGE. The book acts both as a reference guide to the field and as a guide to help you get to know aspects of it. Each chapter includes a worked example with step-by-step instructions. Each chapter has a … Continue reading GeoComputation: A Practical Primer →
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OpenLayers is a powerful web mapping API that many of my websites use to display full-page “slippy” maps. DataShine: Census has been upgraded to use OpenLayers 3. Previously it was powered by OpenLayers 2, so it doesn’t sound like a major change, but OL3 is a major rewrite and as such it was quite an … Continue reading OpenLayers 3 and DataShine →
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Today, the Office for National Statistics (ONS) have released the Travel to Work Flows based on the 2011 census. These are a giant origin-destination matrix of where people commute to work. There are various tables that have been released. I’ve chosen the Method of Travel to Work and visualised the flows, for England and Wales, […]
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Well, that was good. September this year was Maptember with numerous conferences with a geographical flavour taking place in the East Midlands. The undoubted highlight for me was FOSS4G 2013, the annual conference for OSGeo which travels around the world, this year it was conveniently in Nottingham, so I was able to make it along […]
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Well, that was good. September this year was Maptember with numerous conferences with a geographical flavour taking place in the East Midlands. The undoubted highlight for me was FOSS4G 2013, the annual conference for OSGeo which travels around the world, this year it was conveniently in Nottingham, so I was able to make it along […]
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I’ve fixed and tidied up a visualisation I created back in 2010, which showed the results of that year’s General Election in the UK. Newer versions of OpenLayers had broken it (specifically the use of addUniqueValueRule with a custom context resulted in no circles appearing) and also the UI looked rather rudimentary. Now it has […]
Continue reading »Rank Clocks are a type of visualisation invented by Prof Michael Batty here at UCL CASA. They are time-based line charts, wrapped around a clockface – with the start date at the top, wrapping around clockwise to the end date. … Continue reading →
Continue reading »OpenLayers 2.10 Beginner’s Guide – Erik Hazard, Packt Publishing The OpenLayers 2.10 Beginner’s Guide (buy: Amazon) is a guidebook for a technology that is relatively unknown in the broader technology world – OpenLayers being a JavaScript-based online mapping framework, the … Continue reading →
Continue reading »This post reviews the two books about OpenStreetMap that appeared late in 2010: OpenStreetMap: Using and Enhancing the Free Map of the World (by F. Ramm, J. Topf & S. Chilton, 386 pages, £25) and OpenStreetMap: Be your own Cartographer (by J. Bennett, 252 pages, £25). The review was written by Thomas Koukoletsos, with some […]