Kavisha

Storage, update & dissemination of 3D city objects

Transcript

1. 3D4EM Storage, Update & Dissemination of 3D City Objects Kavisha 11-11-2015 User’s Committee Meeting, Utrecht
2. CityGML based Interoperability for the Transformation of 3D Data Models • 3DTM: 3D Transformation Engine • An Open Source Initiative for syntactic, semantic and schematic Interoperability. • Domains covered: • 3D GIS models : CityGML • BIM models : gbXML • Visualization models : COLLADA & X3D Commercialization of 3D GIS!!! Need Open source Initiatives…
3. 3DTM
4. LOD-0 LOD-1 LOD-2 LOD-3 IIRS Campus 3D Model
5. 3DTM: COLLADA-CityGML Interoperability COLLADA & CityGML models of Eiffel Tower and Taj Mahal
6. 3DTM: CityGML-BIM Interoperability Generated gbXML model of IIRS Campus (LOD-3) Generated IFC model of IIRS Campus (LOD-2)
7. 3D Visualization üCityGML files become very large(several GBs) üConverted to X3D, OBJ, etc. for web rendering.
8. PhD Research
9. • Massive TIN datasets • AHN3 - Delaunay triangulation • 3DTOP10NL • Storage of massive TINs in database • Comparison of existing solutions - trade offs? • Finding the efficient approach? • Defining the data structure • Implementation …
10. • Dissemination (tailored to user specific applications) • OBJ • CityGML • WFS for 3D objects and massive triangulations…
11. Thank you!!