Fast Thinking and Slow Thinking Visualisation Last week I attended the Association of American Geographers Annual Conference and heard a talk by Robert Groves, Director of the US Census Bureau. Aside the impressiveness of the bureau’s work I was struck by how Groves conceived of visualisations as requiring either fast thinking or slow thinking. Fast thinking data visualisations offer a clear message without the need for the viewer to spend more than a few seconds exploring them. These tend to be much simpler in appearance, such as my map of the distance that London Underground trains travel during rush hour. The explicit message of this map is that surprisingly large distances are covered across the network and that the Central Line rolling stock travels furthest. It is up to the reader to work out why this may be the case.
GeoFlow Takes Data for a 3-D Drive In November, during the SharePoint Conference 2012, attendees received a Public Preview of project codename “GeoFlow” for Excel, the latest business-intelligence (BI) functionality to be integrated with Microsoft Excel 2013 later this year. As an Excel add-in, GeoFlow provides interactive, 3-D geospatial and temporal data visualizations. It enables information workers to discover and share new insights from data through rich, 3-D data on a globe and fluid, cinematic guided tours—virtual cinematography moving through data. With dynamic data exploration that turns rows and columns of spatiotemporal data into rich 3-D maps, the term “add-in” really doesn’t do justice to the technology behind GeoFlow, a preview of which is available for download. Take a look under the hood, and you’ll see stars. But even while Curtis Wong, principal researcher at Microsoft Research Redmond, was busy giving talks about WWT, he had further ambitions in mind for the technology.
Map Projections & What They Say About You Comic by Randall Munroe at XKCD Most people go through life perfectly happy in the knowledge that the real earth looks like it does on a standard Mercator projection map. Cartographers, map nerds and those that have seen this scene from the West Wing know that this is not really the case. Wikipedia sums up why map projections are necessary in the first place: Map projections are necessary for creating maps. All map projections distort the surface in some fashion. Apache Zeppelin 0.7.0-SNAPSHOT Documentation: Data Ingestion Data Discovery Data Analytics Data Visualization & Collaboration Multiple Language Backend Apache Zeppelin interpreter concept allows any language/data-processing-backend to be plugged into Zeppelin. Currently Apache Zeppelin supports many interpreters such as Apache Spark, Python, JDBC, Markdown and Shell.
GeoSilk GeoSilk is a set of icons designed for open source web-based geospatial software. The set is an extension of Mark James's Silk icons—probably the most widely used set of icons on the web—that incorporates metaphors for spatial constructs defined by Jody Garnett's uDig icons. Take a gander at the full set or download it from the SVN repository. GeoSilk is available under a Creative Commons Attribution 3.0 License, meaning anyone may use it for any purpose and make any changes they like.
Why We Need Another Mapping Framework Over the last two years, cartography has drawn my attention from time to time. In 2009 I started my work in the field by porting the PROJ.4 library to ActionScript. My first notable interactive map application was a world map widget for the Piwik Analytics project, which is in use until today. It was born from the need to have a simple world map that is lightweight, easy to use and completely independent from external map services like Google Maps. A lot of things happened in the field since then and some cool mapping frameworks have been released. Mapping murder throughout the world Comparing murder rates of countries can really highlight the countries with problems - the ones in seriously need attention. A high murder rate gives a "tip off" that something needs to change. The UNODC have collected together all the national data on homicide for 207 countries. But of course nothing is ever simple when bringing together national statistics. Countries have different definitions of murder and the data is collected at different times and using different methods. All of this makes comparison of murder rates a messy business.
Africa Is Way Bigger Than You Think - Observations - Scientific American Blog Network Look at the usual flat map of the world and it appears that Greenland is nearly as big as Africa. But it’s not even close. Africa is 14 times larger. Liquigraph by fbiville Changelog A Liquigraph changelog defines a set of migrations to be performed. There can be only one changelog as entry point per project. Both sub_changelog.xml files could import changelogs and/or define changeset elements. Their root element is also changelog. Space-Time Research With self-service options offering enormous benefits in terms of speed, availability and cost, SuperWEB2 gives beautifully visualised ad-hoc tabulation on the internet. Featuring integrated charts, maps and metadata, users can help themselves to insights using their preferred browser, readily performing queries and selecting from a range of open standard outputs. With demand for timely information growing, SuperWEB2 offers self-service, web-based access to data for external, skilled users such as analysts, researchers and subject matter experts. Allowing government departments and other organisations to share information transparently, SuperWEB2 uses web-based ad-hoc tabulation to enable analysis across millions of table cells without compromising confidentiality.
info.mindjet.com/FromCartographytoCardCatalogsTheHistoryofInformationOrganizationInfographic.html In today’s information age, we enjoy all but instant digital access to the world’s collected knowledge. Consider: • Wikipedia contains more than 19 million articles in some 270 languages. • Google aims to catalog the world’s supply of printed knowledge by scanning all of the estimated 130 million books published in modern history.• And the world wide web itself contains more than 7 billion pages.
QGIS 2.10 symbology feature preview With the release of 2.10 right around the corner, it’s time to have a look at the new features this version of QGIS will bring. One area which has received a lot of development attention is layer styling. In particular, I want to point out the following new features: 1. Graduated symbol size The graduated renderer has been expanded.