Latest Posts

Play around with the global data – WebGl Globe

The WebGL Globe is an open platform for geographic data visualization. We encourage you to copy the code, add your own data, and create your own.’ – Chrome Experiments
It’s simple, it’s free, it’s open. The Google Data Arts Team has created a very interesting experiment indeed. What’s different about WebGl Globe is that it focuses on data. The graphic environment encourages the user to think about data visualizations on a globe, in contrast to applications such as google earth and Webgl Earth which due to the level of detail they offer, the imported by the users data are very diverse and get somehow lost in translation. It may sound limiting, but it marks itself as a tool for global spatial analysis and therefore it becomes ideal for thematic data collection. WebGL Globe can really turn spatial analysis into a fun, visual game. It’s all about an open DIY 3d globe, that can give access to an amazing variety of information and tons of creative ideas.

Doug Fritz of the Google Data Arts Team shared a couple of lines about the project: Thanks to WebGL, we’re able to display thousands of moving points at high frame rates by using the user’s graphics processing unit (GPU) for 3D computations. Each state of the globe has its own geometry and we morph between them with a vertex shader, saving precious CPU resources. Additionally, to make the globe look nice, we took advantage of the possibilities of GLSL and created two fragment shaders, one to simulate the atmosphere and another to simulate frontal illumination of the planet”. So, here is what some Java script, and the latest technologies in open source (including WebGL and Html5!) can produce.

Visit http://code.google.com/p/webgl-globe/ to get started. Note that you do need a relatively strong graphic card though.
Features:

Latitude / longitude data spikes
Color gradients, based on data value or type
Mouse wheel to zoom
More features are under development…

    Continue reading »

    Play around with the global data – WebGl Globe

    The WebGL Globe is an open platform for geographic data visualization. We encourage you to copy the code, add your own data, and create your own.’ – Chrome Experiments
    It’s simple, it’s free, it’s open. The Google Data Arts Team has created a very interesting experiment indeed. What’s different about WebGl Globe is that it focuses on data. The graphic environment encourages the user to think about data visualizations on a globe, in contrast to applications such as google earth and Webgl Earth which due to the level of detail they offer, the imported by the users data are very diverse and get somehow lost in translation. It may sound limiting, but it marks itself as a tool for global spatial analysis and therefore it becomes ideal for thematic data collection. WebGL Globe can really turn spatial analysis into a fun, visual game. It’s all about an open DIY 3d globe, that can give access to an amazing variety of information and tons of creative ideas.

    Doug Fritz of the Google Data Arts Team shared a couple of lines about the project: Thanks to WebGL, we’re able to display thousands of moving points at high frame rates by using the user’s graphics processing unit (GPU) for 3D computations. Each state of the globe has its own geometry and we morph between them with a vertex shader, saving precious CPU resources. Additionally, to make the globe look nice, we took advantage of the possibilities of GLSL and created two fragment shaders, one to simulate the atmosphere and another to simulate frontal illumination of the planet”. So, here is what some Java script, and the latest technologies in open source (including WebGL and Html5!) can produce.

    Visit http://code.google.com/p/webgl-globe/ to get started. Note that you do need a relatively strong graphic card though.
    Features:

    Latitude / longitude data spikes
    Color gradients, based on data value or type
    Mouse wheel to zoom
    More features are under development…

      Continue reading »

      Harvesting ambient geospatial information from social media feeds

      A paper I  recently co-authored with Anthony Stefanidis and Jacek Radzikowski from George Mason University entitled “Harvesting ambient geospatial information from social media feeds” is now available in  GeoJournal.   The abstract …

      Continue reading »

      Harvesting ambient geospatial information from social media feeds

      A paper I  recently co-authored with Anthony Stefanidis and Jacek Radzikowski from George Mason University entitled “Harvesting ambient geospatial information from social media feeds” is now available in  GeoJournal.   The abstract …

      Continue reading »

      The Best of 2011

      As 2011 draws to a close it is worth reflecting on what, I think, has been a defining year for mapping and spatial analysis. Geographic data have become open, big, and widely available, leading to the production of new and interesting maps on an almost daily basis. The increasing utilisation of technology such as Google Fusion Tables has …

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      Levels of participation in citizen science and scientific knowledge production

      The previous post focused on citizen science as participatory science. This post is discussing the meaning of this differentiation. It is the final part of the chapter that will appear next year in the book: Sui, D.Z., Elwood, S. and M.F. Goodchild (eds.), 2012. Volunteered Geographic Information, Public Participation, and Crowdsourced Production of Geographic Knowledge. […]

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      Call for Papers – Geography in Interdisciplinary Research: Threat or Opportunity?, RGS-IBG Annual International Conference 2012

      Abstracts are invited for a session held by the GIScience Research Group (GIScRG) at the Royal Geographical Society – Institute of British Geographers International Conference 2012. The conference runs between 3rd – 5th July 2012. More about the session: Interdisciplinary research is not only an extremely difficult balancing act, but one which is becoming more frequent. […]

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      Call for Papers – Modelling for Policy, RGS-IBG Annual International Conference 2012

      Abstracts are invited for a session held by the GIScience Research Group (GIScRG) at the Royal Geographical Society – Institute of British Geographers International Conference 2012. The conference runs between 3rd – 5th July 2012. More about the session: This session aims to bring together researchers to report on progress in diverse types of modelling that has […]

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      Call for Papers – Enhancing Complex Social Simulations with Automata Systems, RGS-IBG Annual International Conference 2012

      Abstracts are invited for a session held by the GIScience Research Group (GIScRG) at the Royal Geographical Society – Institute of British Geographers International Conference 2012. The conference runs between 3rd – 5th July 2012. More about the session: This session aims to bring together researchers to report on progress in diverse types of automata systems […]

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      Call for Papers – Space-time analysis, visualising everyday mobilities, and intelligent transport systems, RGS-IBG Annual International Conference 2012

      Abstracts are invited for a session held jointly by the GIScience Research Group (GIScRG) and the Transport Geography Research Group (TGRG) at the Royal Geographical Society – Institute of British Geographers International Conference 2012. The conference runs between 3rd – 5th July 2012. More about the session: Geospatial technologies are an important component of transport […]

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