Open Data and Collaboration

Open source based online map sharing to support real-time collaboration

Session Type: 
Lightning Talk
Presenter(s): 
Muhammad Atif Butt, Ryerson University
Dr Songnian Li

Collaboration is an important part of many tasks involving people from different organizations, in which maps often play a central role in informing and improving debates and facilitating decision making. Allowing groups to share and view maps and spatial images interactively over the Web in real-time not only provides an effective solution to decision makers, but also facilitates scientific and public debates with real-time geospatial information. A few tools have been developed using proprietary software approaches, e.g., PCI Geoconference. More recently, some efforts have been made using open map services to develop simple map sharing applications. However, little has been done on designing and developing such online tools based on open source. Further, a literature search indicates the lack of scientific publications on empirical studies of their practical applications.

This paper describes a study on using open source geographical information system (GIS) and mapping solutions to design and develop real-time map sharing applications, which rely on the data served through open map/data services with the option of integrating local data. The study focuses on not only real-time map (or geospatial information) sharing, but also integration of other open source based groupware solutions. Existing open source solutions are evaluated for the design and development of various prototype collaborative map sharing tools. The prototype is applied in an online virtual public meeting space for initial usability studies. The paper also discusses the issues related to the design, data required to support better map sharing, and adoption of related standards.

Speaker Bio: 

Muhammad Butt is currently a PhD candidate in the Department of Civil Engineering, Ryerson University. He has been working on the design, development and usability study of web-based PPGIS and applications, especially using open source based solutions.

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VGI and Geotechnology for Supporting Blind and Vision-impaired People Using a Localized Gazetteer

Session Type: 
Academic Session
Presenter(s): 
Mr Ahmad Aburizaiza, George Mason University
Dr Matthew Rice

 

Speaker Bio: 

Ahmad Aburizaiza
PhD student at George Mason University
Geography and Geoinformation Science Department
Fairfax, VA, USA

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Sharing data with Drupal, Geoserver, and OpenLayers

Session Type: 
Lightning Talk
Presenter(s): 
Jonathan Harahush, Denver Regional Council of Governments (DRCOG)

The Denver Regional Council of Governments' (DRCOG) Regional Data Catalog offers the agency the ability to more easily share regional data sets with member governments, business partners, and the public. The new version of the data catalog is powered by the Drupal CMS and features a custom page template that incorporates preview maps that are powered by OpenLayers. Map content is published through GeoServer. This talk will quickly outline how these technologies work together to power the Regional Data Catalog.

Speaker Bio: 

Jonathan Harahush is a GIS Analyst at the Denver Regional Council of Governments in Denver, CO.  Jonathan graduated from Penn State University in 2004 with a BS in Geography.  Jonathan attended graduate school at the University of Denver and graduated with a MAS in Information and Communication Technology in November 2010. 

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gvSIG Mini support for OSM massive POI data

Session Type: 
Tech Session
Presenter(s): 
Jorge Gaspar Sanz Salinas, Prodevelop
Alberto Romeu Carrasco

gvSIG Mini is a free tiled map viewer for Android with support for OSM, WMS, WMS-C, TMS, other non-standard tile servers, routing, localization, etc. and now offline support for searching and visualize POIs and addresses.

A process to download POI data of any city from the OSM planet database has been developed. POIs and streets are downloaded, processed, indexed and stored into an object oriented database.

gvSIG Mini is able to manage several POI city database without connectivity, allowing any user to browse or perform full-text POIs and addresses search, find nearby places, share, call or visit the website of a POI, manage favourite places, display POIs by category, applying level of detail and grouping nearby points to efficiently and clearly represent all the data.

Several problems have been solved during the development and will be presented during the talk: Implementation of a clustering algorithm to deal with visualization of many thousands of points, multiresolution representation of points, spatial and full-text indexing, contextual simbology; giving as a result an efficient offline solution for manage vectorial data on mobile devices.

Keywords: OSM, open data, clustering, POI, Android, gvSIG Mini, indexing.

Speaker Bio: 

Jorge Sanz is consultant in geospatial technologies at Prodevelop since 2006. He's also part of the gvSIG team, Charter Member of the OSGeo Foundation, as well as part of the Spanish language OSGeo Local Chapter. He also maintains with several friends and colleagues a blog about GIS, cartography and other geoscience topics since 2006 called http://geomaticblog.net.

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Designing a better SDI

Session Type: 
Tech Session
Presenter(s): 
Sebastian Benthall, OpenGeo
Rolando Peñate

Beyond the substantial hurdles of actually developing software, a successful project requires organizing a community, aligning partners around a shared mission, and investing in user experience. Learn more about how OpenGeo, along with partners from the World Bank, the United Nations, Harvard University, and others around the globe have been building a better spatial data infrastructure on top of some of the world's best open source software.

Speaker Bio: 

Sebastian manages GeoNode--the project, the product, and the development team. GeoNode is the next generation of spatial data Infrastructure, combining GIS, cataloging, and Web 2.0 functionality in a single package. Parallel with his managerial role, he is a GeoNode committer and Project Steering Committee member.

Rolando works as OpenGeo's lead interaction, graphic, and web designer and as such is responsible for much of the interaction design and user workflows underpinning GeoNode.

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