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Great Maps with ggplot2
The above map (and this one) was produced using R and ggplot2 and serve to demonstrate just how sophisticated R visualisations can be. We are used to seeing similar maps produced with conventional GIS platforms or software such as Processing but I hadn’t yet seen one from the R community (feel free to suggest some ...
Automated Cartography: The urban expansion of Lansing
I hadn’t seen this video before. It demonstrates one of the earliest attempts at automated cartography for the display of time with spatial data. Truly ground breaking, the video shows the urban growth of Lansing at 5 yearly intervals from between 1850 and 1965 and was produced by Allan Schmidt at the Michigan State University Urban ...
ESRI (UK) Case Study
Buried deep in the ESRI (UK) website is a case study I helped put together showcasing some of the ways we use GIS (specifically ESRI products) within UCL Department of Geography and Centre for Advanced Spatial Analysis. ESRI (UK) co-sponsor my PhD research and I have had a very positive and productive relationship with the company. I ...
Installing rgdal on Mac OS X
******Roger Bivand has kindly just emailed me to say: “Your 2 November blog about rgdal on OSX is very misleading. The CRAN rgdal page: http://cran.r-project.org/web/packages/rgdal/index.html says all you need to know unless you need extra drivers, or already have PROJ.4 and GDAL installed. Just do: setRepositories(ind=1:2) install.packages(“rgdal”) installs rgdal with all its external dependencies satisfied. It is ...
Surname Diversity in Great Britain
As part of my PhD research I recently produced the map below (high res. version) that shows the diversity of surnames in Great Britain. I wanted to demonstrate that surname diversity is not uniform across Great Britain. For example towns and cities (especially London) have relatively high surname diversities compared with rural areas because more ...
ArcGIS for iPhone: Review
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ESRI have just launched their ArcGIS for iPhone Application. I have tested it out and thought I would share a my first impressions. I conducted the test on my iPhone 3GS running software version 4.0.1 and with 1 to 3 bars of 3G signal. Overall I found the app to be very impressive. You are ...
Top 60 Chinese Cities
Cities are one of the many phenomena that follow a long-tailed distribution. In simple terms there are a few big cities and lots of small ones. The classic way of showing a long tailed distribution (and the method from which the name is taken) is to produce as plot such as that below: The infographic ...
Graduate Jobs with ESRI (UK)
ESRI (UK) have a couple of graduate vacancies with their Technical Solutions Group (TSG) for the following roles: GIS Developer: Reporting to the TSG Technology Manager, the role of the GIS Developer is to support the sales process through the development of bespoke demonstration applications, and to work with Customers and Business Partner organisations to ...
Jack Dangermond at Where 2.0: GIS on the Web–A Big Step
I have embedded below Jack Dangermond’s recent talk at Where 2.0. It introduces the exciting opportunities provided by what Dangermond calls “GIS in the Sky”. Thanks to Alex Singleton for sending me the link to the video posted on GIS and Science.
Mapping and Colour blindness
The explosion in spatial data availability and dissemination through online visualisation has produced many interesting maps. A friend of mine, however, recently commented that not enough is done for those with colour blindess. To see the impact of this I was recommended a great website developed by Stanford University that enables users to check how ...
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