3D-Geospatial app-development-with-no-internet-access
- 1. 3D Geospatial Application Development with no Internet Access www.melown.com Ladislav Horký, Head of Photogrammetry, Melown Technologies SE
- 2. Melown Tech is a software-development company in the 3D mapping business www.melown.comwww.melown.com
- 3. What our software does? I) Computer-vision and deep-learning driven reality capture www.melown.com
- 4. What our software does? II) 3D data fusion, virtual landscape streaming and rendering www.melown.com
- 5. Applications • VR and AR • interactive simulations • gaming • geospatial (3D mapping) www.melown.com
- 6. What this talk is about I. Drawbacks of the Cloud II. Going ofine with VTS III. VTS architecture and setup IV. Demo www.melown.comwww.melown.com
- 7. Drawbacks of the Cloud www.melown.com
- 8. Geospatial app development in the cloud • Hassle-free, server-less from user’s perspective. • No need to host large imagery, terrain or 3D resources. • Available from (almost) anywhere. www.melown.com Pros:
- 9. Geospatial app development in the cloud • No need to host large resources = cannot host your own resources. • You need to upload your data to the cloud to use them. • Depends on the Internet connection. www.melown.com Cons:
- 10. Where is the cloud a no-go? www.melown.com
- 11. No Internet access: Disaster management www.melown.com
- 12. No Internet access: Emergency services www.melown.com
- 13. Security: Control over the data www.melown.com
- 14. Running your own client-server FOSS stack • Solved in 2D for raster and vector data ➔ GeoServer, MapServer, TileServer,... ➔ Leafet, OpenLayers • What about 3D? www.melown.com
- 16. www.melown.com Which part of the city is going to be the most endangered in next two hours?
- 17. www.melown.com What is the best path to the wounded person on the hillside?
- 18. www.melown.com How high is the building that is on fre?
- 19. How to setup an ofine 3D FOSS stack? How to upgrade your 2D stack to 3D? www.melown.com
- 20. Going ofine with VTS www.melown.com
- 21. What is VTS? • Integrated FOSS system for 3D geospatial streaming and rendering ➔ BSD 2-clause license ➔ designed for stand-alone deployment ➔ streaming servers and client libraries provided • Compatible with a number of FOSS formats, standards and services ➔ GDAL readable rasters, styled OGR vectors ➔ WMS/WMTS, MVT vector tiles ➔ I3S (SLPK), VEF www.melown.com
- 22. VTS highlights: client APIs www.melown.com
- 23. VTS highlights: client APIs • For web client – JavaScript • For desktop – C++ • Documented on GitHub with live examples • Measure, add custom vector data, query position, ... www.melown.com
- 24. VTS highlights: dynamic tile generation www.melown.com
- 25. VTS highlights: dynamic tile generation • On-demand TIN generation from DEM/DSM. • Streaming 90m global DEM using only 60GB of disk space. • Reduces storage requirements for ofine deployment. www.melown.com
- 26. VTS highlights: Data fusion www.melown.com
- 27. VTS highlights: Data fusion • Server-side data fusion of terrain and 3D data. • Datasets can be still handled independently on the client. • On-the-fy translation of vector data from 2D to 3D. www.melown.com
- 28. VTS highlights: scalable, high-performace www.melown.com
- 29. VTS highlights: scalable, high-performance • VTS runs 3D at Mapy.cz website with 750 000 daily users. • Easy management and streaming of TBs of 3D content. • Server-side data fusion to ease load on the client. www.melown.com
- 30. VTS setup and architecture www.melown.com
- 31. Setting up VTS Add our Debian repository - see http://cdn.melown.com/packages/ $ sudo apt update && sudo apt install vts-backend Go to http://localhost:8070/mapproxy/melown2015/surface/examples/srtm1-n47-e013/ to see the sample data bundled with VTS Backend www.melown.com
- 33. Set up VTS mapproxy resources • VTS Mapproxy dynamically converts DEMs to TINs that can be streamed to and used by the VTS clients. • Translates vector data from 2D to 3D. • Single command resource setup from GDAL-readable raster. www.melown.com
- 34. Add your terrain to VTS storage • 3D resources defned in VTS mapproxy can be added to VTS storage to be fused with 3D cities and with one another. $ vts --add storage --tileset //localhost:8070/mapproxy/your/terrain --bottom www.melown.com
- 35. Fuse your 3D city with the terrain • Convert 3D city from VEF, I3S (SLPK) or LODTree into VTS format $ vef2vts --input 3Dcity.vef --output my3Dcity --tilesetId my3Dcity • Add it to VTS storage to be fused with the terrain $ vts --add storage --tileset path/to/my3Dcity --top www.melown.com
- 36. Develop apps using client APIs • Render your live non-VTS data to the map • Measure and interact with the surfaces • Create desktop and unity applications www.melown.com
- 37. Do more • Add styled vector data • Make the vectors interactive • Fuse large amounts of 3D models and terrains • Get in touch and get involved! www.melown.com
- 38. Sources of VTS information vtsdocs.melown.com github.com/Melown github.com/Melown/vts-browser-js/wiki/Examples Getting involved in VTS development contact: community@melown.com or fork us on GitHub ;-) www.melown.com