WorldMap of SocialNetworks January 2017: a new edition of my World Map of Social Networks, showing the most popular social networking sites by country, according to Alexa & SimilarWeb traffic data (caveat: it’s hard to understand the impact of Google+ because it is part of Google domain traffic). There are a lot of news since last January: Facebook is still the leading social network in 119 out of 149 countries analyzed, but it was stopped in 9 territories by Odnoklassniki, Vkontakte and Linkedin. It’s interesting to see that in some countries, like Botwana, Mozambique, Namibia, Iran e Indonesia, Instagram wins and that some African territories prefer LinkedIn. Overall LinkedIn conquers 9 countries, Instagram 7, meanwhile VKontakte and Odnoklassniki (part of the same group Mail.ru) grow up in Russian territories. But what’s going on behind the first place? Instagram is the second social network in 37 countries. [Versione italiana dell’analisi di gennaio 2017] inShare1,047 But what’s going on behind the first place?
A Walk Through the Ancient World When the first immersive 3D games came out, I asked a programmer if he knew of anyone who had used that technology to create a Virtual Ancient Rome or Virtual Ancient Athens. I loved the idea of walking around in a place whose current face was changed out of all recognition from its golden age. He shook his head. Creating virtual worlds was way too time consuming and required too much specialist knowledge and so was too expensive. Fast forward a decade and the programming necessary becomes easier to do and the number of people who know how to do it have increased substantially. Now that it's quite a bit easier to find a virtual ancient city to stroll through, I thought I would survey a few options and provide you with a short virtual atlas of the ancient world. Ancient Spaces: Acropolis of Athens Ancient Spaces is a "a student-built, 'massively multiplayer' world based on classical antiquity" at the University of British Columbia. Prof. Column photo by Cliff
Designing an OSM Map Style With the recent change to our map system, we introduced a new map style for our OSM tiles. Since 2008, we’ve used the default OSM styles, which produces map tiles like this: This style is extremely good at putting a lot of information in front of you. OSM doesn’t know your intended purpose for the maps (navigation, orientation, exploration, city planning, disaster response, etc.), so they err on the side of lots of information. This is good, but with the introduction of TileMill, non-professional cartographers (like myself) can now easily change map styles to better suit our needs. Using TileMill, we decided to take a crack at designing a map that is better suited to Flickr. On Flickr, we use maps for a very specific purpose: to provide context for a photo. This is the style provided by MapBox’s excellent OSM Bright. This is how it looks: We tried a lot of different color combinations on the road to this style. Here it is zoomed in a bit more: These maps are still a work in progress.
Generic Mapping Tools OS and Freeware GIS Applications An open source application by definition is software that you can freely access and modify the source code for. Open source projects typically are worked on by a community of volunteer programmers. Open source GIS programs are based on different base programming languages. Three main groups of open source GIS (outside of web GIS) in terms of programming languages are: “C” languages, Java, and .NET. The first group would be the group that uses “C” language for its implementation. The second group of Open Source GIS would be the ones that use JAVA as the implementation language. The third most influential group of Open Source GIS would be the one that integrates applications that use “.NET” as the implementation language. Outside of the three major language groups, open source web mapping is another group. Keep reading: 1 2 3 4 - , Next page >>.
All the software a geoscientist needs [Updated 09 July 2014: Previous (2012) version for reference here. Script updated for Ubuntu 14.04 based systems.] All of my research for the past 5 years was done with free software. Free/Libre Open Source Software (FLOSS) allows you to make as many copies the programs as you need and distribute them as you please. In this post, I have divided the programs into different categories: Operating system; Maps and Geographic Information Systems; Data Processing and Plotting; Writing Journal Articles; Conference Presentations; Programming Tools; Images, Graphics and Photos; Videos and Media; Computer Administration Tools and Miscellaneous. I have also posted a short script that to automatically install most of this software onto a Linux machine, and I invite you to suggest any software that I may have missed in the comments. Operating System My current system runs a FLOSS operating system, GNU/Linux (shortened to Linux here). Of all the different Linux flavours, I chose Linux Mint 14 XFCE.