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PARTICIPATORY GIS: EXPERIMENTATIONS FOR A 3D SOCIAL VIRTUAL GLOBE …

PARTICIPATORY GIS: EXPERIMENTATIONS FOR A 3D SOCIAL VIRTUAL GLOBE
M. A. Brovelli, M. Minghini, and G. Zamboni

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  • 1. Geomatics Laboratory Como Campus Participatory GIS: experimentations for a social 3D virtual globe Maria Antonia Brovelli, Marco Minghini, Giorgio Zamboni Politecnico di Milano, DICA – Geomatics Laboratory at Como Campus
  • 2. Virtual globes 2 ✔ Virtual globes ➔ software allowing to explore the Earth in three dimensions while streaming satellite imagery, elevation and other data from the Internet ➔ user freedom to move around the globe and interact with it ➔ multi-disciplinary, multi-resolution and multi-dimensional (even 4D) ➔ context capability, ease of use, realistic user experience ➔ growing popularity due to increased Internet availability of geospatial data (e.g. aerial and satellite imagery, topographic maps and DTMs) Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 3. Virtual globes ✔ Many of them are available Geomatics Laboratory, Politecnico di Milano – Como Campus 3
  • 4. Virtual globes ✔ Many of them are available Geomatics Laboratory, Politecnico di Milano – Como Campus 4
  • 5. NASA World Wind 5 ✔ NASA's virtual globe ➔ http://goworldwind.org ➔ free and open source under NASA Open Source Agreement (NOSA) license ➔ Java Software Development Kit (SDK) ➔ multi-platform (Java: “Write once, run anywhere”) ➔ 3D Web visualization as Java Application, Java Applet or Java Web Start Application ➔ based on open standards, accommodates any desired data format ✔ Main features ➔ accuracy control of horizontal (texture) and vertical (DTM) components ➔ upload layers from OGC-compliant WMS servers ➔ default WMS layers (i.e. satellite imagery and DTMs) from NASA and USGS ➔ 2D objects (e.g. lines and polygons) and 3D objects (e.g. parallelepipeds and spheres) can be placed on the globe or in its surroundings Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 6. PoliCrowd 6 ✔ PoliCrowd is a Web-based 3D Participatory GIS application ➔ born to promote tourism and cultural heritage ➔ interaction with user mobile devices for uploading Points Of interest (POIs) ➔ POIs three-dimensional visualization on World Wind virtual globe ➔ user collaborative contribution in POIs characterization ➔ creating, saving and sharing customized maps with the community http://geomobile.como.polimi.it/policrowd Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 7. 7 PoliCrowd architecture SERVER CLIENT WMS template form AGGREGATE compiled form Geomatics Laboratory, Politecnico di Milano – Como Campus COLLECT
  • 8. Field-data collection ✔ Guided form compilation Geomatics Laboratory, Politecnico di Milano – Como Campus 8 COLLECT
  • 9. Field-data collection ✔ Guided form compilation Geomatics Laboratory, Politecnico di Milano – Como Campus 9 COLLECT
  • 10. Field-data collection ✔ Guided form compilation Geomatics Laboratory, Politecnico di Milano – Como Campus 10 COLLECT
  • 11. Field-data collection ✔ Guided form compilation Geomatics Laboratory, Politecnico di Milano – Como Campus 11 COLLECT
  • 12. Field-data collection ✔ Guided form compilation Geomatics Laboratory, Politecnico di Milano – Como Campus 12 COLLECT
  • 13. Field-data collection ✔ Guided form compilation Geomatics Laboratory, Politecnico di Milano – Como Campus 13 COLLECT
  • 14. Field-data collection ✔ Guided form compilation Geomatics Laboratory, Politecnico di Milano – Como Campus 14 COLLECT
  • 15. 15 PoliCrowd architecture WMS server WWW CLIENT SERVER JSP / SERVLETS WMS / KML Geomatics Laboratory, Politecnico di Milano – Como Campus JAVA Web Start
  • 16. 3D data visualization 16 ✔ Points Of Interest (POIs) 3D visualization on top of World Wind ➔ 3 Levels Of Detail according to the altitude of the point of view on the globe ✔ ✔ first LOD: representation of all the POIs with a common icon (i.e. a pin) Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 17. 3D data visualization 17 ✔ Points Of Interest (POIs) 3D visualization on top of World Wind ➔ 3 Levels Of Detail according to the altitude of the point of view on the globe ✔ ✔ second LOD: representation of POIs with icons showing their category Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 18. 3D data visualization 18 ✔ Points Of Interest (POIs) 3D visualization on top of World Wind ➔ 3 Levels Of Detail according to the altitude of the point of view on the globe ✔ ✔ third LOD: representation of POIs with icons showing their classification Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 19. 3D data visualization 19 ✔ Querying Points Of Interest ➔ clickable POIs placemarks ➔ visualization of Android ODK Collect-reported information in a balloon Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 20. User interaction with POIs ✔ View page for non registered users Geomatics Laboratory, Politecnico di Milano – Como Campus 20
  • 21. User interaction with POIs ✔ View page for registered users Geomatics Laboratory, Politecnico di Milano – Como Campus 21
  • 22. User interaction with POIs 22 ✔ Add/edit comments and multimedia contents (registered users only) Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 23. Adding WMS layers 23 ✔ Adding layers from available WMS servers ➔ users have to enter a valid WMS server URL and then select from the list the desired layer(s) ➔ all the WMS layers added to a PoliCrowd projec feed a catalogue available for the whole community Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 24. Creating/saving projects 24 ✔ Creation of a new PoliCrowd project ➔ registered users can create a new project, entering a name and a description ✔ Saving a PoliCrowd project ➔ storage of the current layers, the position (i.e. latitude, longitude and altitude) and the camera orientation of the point of view over the globe ✔ Visualization of user-created projects ➔ all the created project feed a catalogue available for the whole community ➔ the catalogue keeps trace of the project owner ➔ all users can visualize PoliCrowd projects ➔ project owners have also editing options available Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 25. Projects catalogue ✔ Visualization of user-created projects Geomatics Laboratory, Politecnico di Milano – Como Campus 25
  • 26. NASA World Wind Europe Challenge 26 ✔ Second NASA World Wind Europe Challenge in 2014 (1st edition in 2013) ➔ http://eurochallenge.como.polimi.it Geomatics Laboratory, Politecnico di Milano – Como Campus
  • 27. 27 Contacts Thanks for your attention! Marco Minghini Politecnico di Milano Laboratorio di Geomatica - Polo Territoriale di Como Via Valleggio 11, 22100 Como (Italy) marco.minghini@polimi.it Geomatics Laboratory, Politecnico di Milano – Como Campus