Open-Source GIS:
Transcription
Open-Source GIS:
Open-Source GIS: A Balancing Act Between a Wampeter and Saltpeter John G. Van Hoesen, Green Mountain College Unfolding the Map: Making Geospatial Information Accessible to the Public Background 1.0 Wampeter or Saltpeter? • Vonnegut (1974) “Wampeters, Foma, and Granfalloons” • Egenhofer and Mark (1995) “Naïve Geography” • DiBiase (2007) “Is GIS a Wampeter?” • Goodchild (2007) “Volunteered Geographic Information” • Turner (2006) “Intro to Neogeography” • Sui (2008) “The Wikification of GIS…” (Sui, 2005) Background 2.0 Wampeter or Saltpeter? “Central control of computer databases, such as GIS, tend to increase the power to the bureaucrats, administrators, technical experts and computer literate groups who use them at the expense of those who lack the expertise to access to these systems” Arnoff (1989) “Naïve geography is a necessary underpinning for the design of GISs that can be used without major training by new user communities such as average citizens, to solve day-to-day tasks” Egenhofer and Mark (1995) “Instead of asking how to find the need or data people want, instead ask how to allow the public needs to inform and drive data collection and access” Huang and Chuang (2005) Background 3.0 Wampeter or Saltpeter? “Neogeography is about people using and creating their own maps, on their own terms and by combining elements of an existing toolset. Neogeography is about sharing location information with friends and visitors, helping shape context, and conveying understanding through knowledge of place” Turner (2006) “This new phase of development is the wikification of GIS, which is driven by the massive and voluntary contribution among both amateur and experts using Web 2.0 technology” Sui (2008) “Another source of interest in GIS becoming a tool of participatory democracy has been the need to reinvingorate traditional models of citizen involvement in making decisions about the use of public , natural resources” Jankowski (2009) Web/Online Collaboration Functionalize Three Basic Elements Three Basic Functions Map Community Web Technology Integrated Online Community Framework (OCF) Phenomenalize Bloggers & Wikis Theorize Three Basic Phenomena Three Basic Theories Participatory Research (Chuang and Huang, 2005) Visualization Participation Naïve Geography Web/Online CiGIS, PPGIS, PGIS Google Earth, Yahoo Map, etc The Playing Field 1.0 Open Source Options? • MapWindows • QuantumGIS • Capaware • TerraView • SAGA GIS • Jump GIS • SavGIS • GRASS • OSSIM • gvSIG • ILWIS • uDIG • fGIS ? N Kristina Lerman; http://www.isi.edu/~lerman The Playing Field 2.0 GeoWeb Options? Web 2.0 Applications Google Earth/Maps (http://thematicmapping.org) WikiMapia – (www.wikimapia.org) Platial Maps – (http://platial.com) Ning – (www.ning.com) The GMapCreator http://www.casa.ucl.ac.uk/software/gmapcreator.asp OpenStreetMap – (www.openstreetmap.org) MetaCarta Labs – MapRectifier – (http://labs.metacarta.com) (http://labs.metacarta.com/rectifier) Flickr / Picasa BatchGeocode – (www.batchgeocode.com) GeoNames – (www.geonames.org) GeoRSS Tagging GeoParsing – (http://gutenkarte.org) RSS to GeoRSS Converter Everyone Assembling the Web: The Difficulty Curve of DIY Platforms, Tools, and Pieces QUANTITY OF CREATORS Variety and Output Hundreds of Millions • Web desktops • Badges • Blogs • Wikis • Feeds • Enterprise 2.0 (Anyone) Tens of Millions • Simple mashups • Situational Apps • Widgets • WOA (Expert Users) Complexity and Sophistication Hinchcliffe (2007) Millions • Web apps • Enterprise mashups • Composite apps • Office 2.0 • SOA (Developers) The Playing Field 3.0 Decision Making Process • Desktop GIS vs. GeoWeb? • WMS vs. Onsite Storage? • Transport & Delivery? • Learning Curve? Unfolding The GeoWeb • VCGI WMS Server http://maps.vcgi.org:8080/wmsconnector/servlet/co m.esri.wms.Esrimap?service=WMS&servicename=V GIS_BASEMAP&version=1.1.0&request=getcapabili ties • You could also use VCGI Interactive Viewer Future of Mapping GeoWeb Wampeter? • Web 3.0 Intuitive Interfaces • Robust Browser Applications • Embedded PGIS • Online Storage References Arnoff, S. 1989. Geographic Information Systems: A Management Perspective. Ottawa, Canada: WDL Publications, 294p. Huang, A.W-C. and Chuang, T-R., 2005, Commonsense Geography meets Web Technology: Online Community Mapping. Open GIS & Web GIS 2005 Conference Procedding, pp89-98. DiBiase, D.W., 2007, Is GIS a Wampter? Transactions in GIS, 11(1): 1-8. Egenhofer, M.J. and Mark, D.M., 1995, Naïve geography, in, Frank, A.U. and Kuhn, W. (eds), Spatial information theory: A theoretical basis for GIS. Lecture notes in computer sciences, Springer-Verlag, 988: 1-115. Goodchild, M.F., 2007, Citizens as sensors: The world of volunteered geography. GeoJournal, 69(4), 211-221. Hinchcliffe, D., (2007), Tracking the DIY phenomenon Part 2: Mass customization, mashups, and recombinant Web apps. ZDNET: http://blogs.zdnet.com/Hinchcliffe/?p=81 Jankowski, P., 2009, Towards particpatory geographic information systems for communitybased environmental decision making. Journal of Environmental Mangement, 90: 1966-1971. Sui, D., 2008, The wikification of GIS and its consequences: Or Angelina Jolie’s new tatto and the future of GIS. Computers, Environment, and Urban Systems, 32: 1-5. Turner, A., 2006, Introduction to neogeography. Sebastopol, CA: O’Reilly Media Short Cuts, 54p. Vonnegut, K Jr., 1974, Wampeters, Foma, and Granfalloons (Opinions). New York, Dell Publishing.