Visualizing Large 3D city models in the Web

Transcript

1. VISUALIZING LARGE 3D CITY MODELS IN THE WEB (FOR PUBLIC

   PARTICIPATION) Michel Krämer
2. None

3. PROJECT www.iqmulus.eu IQmulus

4. PROJECT www.urbanapi.eu

5. Planner

6. Decision maker

7. Public

8. Public

9. Citizens 666

10. NIMBY Not In My Backyard!

11. LULU Locally Unpopular Land Use

12. NIMFY Not In My Frontyard Either!

13. NOPE Not On Planet Earth!

14. CAVE Citizens Against Virtually Everything

15. WUTBÜRGER Citizens Against Virtually Everything

16. TOP-DOWN POLICY MAKING Politics Citizens

17. BOTTOM-UP POLICY MAKING Politics Citizens

18. POLICY CYCLE SURVEY ANALYZE PLAN STAKEHOLDER ENGAGEMENT IMPLEMENT EVALUATE

19. HOW TO IMPLEMENT THIS?

20. HOW TO REACH A AUDIENCE? LARGE

21. HTML5 Logo by W3C

22. WHAT ABOUT REALLY 3D CITY MODELS? LARGE

23. None

24. MAINZ 240 km² 147 048 buildings 240 terrain tiles 240

    orthophotos (JPG, 25cm/px) (XYZ TINs) (CityGML, LOD2) 5.4 GB = 59 305 acres

25. STEPS Transform Convert Optimize Simplify Merge 1 2 3 4

    5

26. SUMMARY Transform & convert buildings Optimize buildings for the Web

    1 2 3 cs3d-transform (CityServer3D) aopt (InstantReality) Transform & convert terrain cs3d-transform

27. Simplify terrain (optional) Optimize terrain for the Web 4 5

    6 MeshLab aopt Merge orthophotos gdal_translate (GDAL)

28. Merge and convert terrain Transform merged terrain 7 8 9

    cs3d-merge MeshLab Simplify merged terrain MeshLab

29. OUTLOOK X3DOM 2.0 Shape Resource Container SRC – A Streamable

    Format for Generalized Web-based 3D Data Transmission Max Limper, Maik Thöner, Johannes Behr, Dieter W. Fellner Streaming in the Web OGC 3D Portrayal Service Workshop: Geospatial information on the Web, Mike McCann (& Volker Coors) Right after the break

30. Michel Krämer Fraunhofer Institute for Computer Graphics Research IGD Fraunhoferstraße

    5 64283 Darmstadt, Germany [email protected] +49 6151 155 415