Explore open-source tools to create digital urban models for MapStore - FOSS4G EU 2025

The presentation describes processes and open-source tools employed by the author and his team to build and consume digital models for urban environments. The results of these processes will be rendered in MapStore as 3D Tiles layers, an OGC community standard designed for streaming and rendering massive 3D geospatial content. MapStore WebGIS framework support for 3D Tiles and glTF models through the Cesium mapping library has been greatly enhanced to support a more powerful integration. The latest versions of MapStore also include improvements and tools for exploring 3D data such as Map Views, Styling, 3D Measurements, Annotations and more.

Attendees will be presented with an overview of our work related to 3D data processing and visualization, and a selected city will be used to exemplify the processes. At the end of the presentation, attendees will be able to use the presented processes, tools and workflows to replicate them in different urban scenarios, finally visualizing them with the 3D tools of the MapStore WebGIS application.

Transcript

1. FOSS4G Europe 2025 at Mostar Explore open-source tools to create digital urban models Tobia Di Pisa GeoSolutions 14th - 20th of July 2025 - Foss4g Europe
2. GeoSolutions - open-source experts • Software boutique building open-source geospatial products since 2006 • Delivering scalable, secure and interoperable solutions for public and private sectors • Products • Services Enterprise Support Services Deployment Subscription Professional Training Customized Solutions 14th - 20th of July 2025 - Foss4g Europe
3. Agenda • Digital Twin Toolbox a brief overview Let's briefly introduce the DTT • Digital Twin Toolbox an year in review What was released for the Digital Twin Toolbox during the last year • Digital Twin Toolbox ongoing works Digital Twin Toolbox 14th - 20th of July 2025 - Foss4g Europe
4. Introducing Digital Twin Toolbox Digital Twin Toolbox 14th - 20th of July 2025 - Foss4g Europe
5. Introducing Digital Twin Toolbox The Digital Twin Toolbox borns with the aim to support with the conversion processes to 3D Tiles: • Pipelines for SHP and LAS files • Necessary tools for ◦ inspecting datasets ◦ assessing datasets • Management of ◦ classification ◦ colorization ◦ resampling … • Reliable tools for ◦ tiling ◦ CRS and georeferencing tuning • and many more… 14th - 20th of July 2025 - Foss4g Europe
6. Main objectives are: • Collect the best OS tools and libraries to process common data sources • Provide workflows to orchestrate a well-driven set of processing chains and methodologies to ◦ Inspect and evaluate data ◦ Prepare/process data ◦ Convert input data in 3D Tiles ◦ Preview data step by step • Provide an user friendly UI to facilitate the work All in a Dockerized environment! All using Open Source! 14th - 20th of July 2025 - Foss4g Europe Introducing Digital Twin Toolbox
7. • Digital Twin Toolbox architecture overview Modular Docker architecture for backend and frontend FastAPI framework for HTTP-based services APIs in Python Digital Twin Toolbox Async job handling with Celery & Redis Frontend UI with React and MapStore preview 14th - 20th of July 2025 - Foss4g Europe Introducing Digital Twin Toolbox
8. • Digital Twin Toolbox input/output capabilities ◦ Supported Inputs: .shp, .las, .laz, .tif, .glb ◦ Output: 3D Tiles, ready for visualization ◦ Integration with CesiumJS map for quick data preview ◦ Integration with MapStore for previewing processed data 14th - 20th of July 2025 - Foss4g Europe Introducing Digital Twin Toolbox
9. New workflows coming soon …! Available workflows and involved tools: 14th - 20th of July 2025 - Foss4g Europe Introducing Digital Twin Toolbox
10. Digital Twin Toolbox an year in review Digital Twin Toolbox 14th - 20th of July 2025 - Foss4g Europe
11. Digital Twin Toolbox an year in review • Digital Twin Toolbox releases summary: ◦ v1.0.0-rc (Jun. 2024): providing basic processing workflows and rough UI for assessing and inspecting data ◦ v1.0.0-rc2 (Sept. 2024): consolidating existing processing workflows with more advanced UI and controls on processing pipelines ◦ v1.0.0-rc3 (Jun. 2025): bug fixing and further improvements for processing pipelines Let’s now review the main new features included during last year! ☺ 14th - 20th of July 2025 - Foss4g Europe
12. • Advanced User Interface for a really improved experience in managing resources and processing pipelines Digital Twin Toolbox an year in review 14th - 20th of July 2025 - Foss4g Europe
13. • Consolidated existing processing workflows and included management of Assets for Data Processing Digital Twin Toolbox an year in review 14th - 20th of July 2025 - Foss4g Europe
14. • Better handling of workflows with management of multiple asynchronous processing pipelines and state control Digital Twin Toolbox an year in review 14th - 20th of July 2025 - Foss4g Europe
15. • Advanced control panel for pipeline processing #1 Digital Twin Toolbox an year in review 14th - 20th of July 2025 - Foss4g Europe
16. • Advanced control panel for pipeline processing #2 Digital Twin Toolbox an year in review 14th - 20th of July 2025 - Foss4g Europe
17. • Advanced control panel for pipeline processing #3 Digital Twin Toolbox an year in review 14th - 20th of July 2025 - Foss4g Europe
18. • Final preview of generated 3D Tiles Click to preview or to download the 3D Tiles! Digital Twin Toolbox an year in review 14th - 20th of July 2025 - Foss4g Europe
19. • Advanced preview with MapStore with possibility to load processed 3D Tiles from Catalog tool Digital Twin Toolbox an year in review 14th - 20th of July 2025 - Foss4g Europe
20. Digital Twin Toolbox ongoing works Digital Twin Toolbox 14th - 20th of July 2025 - Foss4g Europe
21. Digital Twin Toolbox ongoing works • Ongoing work to integrate support for extensive 3D Tile Mesh processing pipelines Main objectives: ◦ Metadata extraction, inspection and photogrammetry outline ◦ Sparse & Dense Point clouds generation from images ◦ 3D Mesh generation ◦ Texturing ◦ Tiling strategies for the purpose Main challenges: ◦ Use Open Source tools ◦ HW capabilities and costs ◦ Find balance between quality and processing time ◦ Performing result Q3 New RC in Autumn 2025! 14th - 20th of July 2025 - Foss4g Europe
22. • Still work in progress but… concrete first results! Digital Twin Toolbox ongoing works Dense Point Cloud Textured 3D Mesh 3D Mesh 3D TIle mesh Municipality of Florence case study 14th - 20th of July 2025 - Foss4g Europe
23. • Here a more extensive sample with MapStore… Digital Twin Toolbox ongoing works 14th - 20th of July 2025 - Foss4g Europe
24. Digital Twin Toolbox - Future works 1. Finalizations of classification improvements for point cloud data started in 2024 2. More support for LODs 3. Support for other input data such as: GeoJson, CityGML, IFC We have in plan also a bunch of other significant enhancements to enrich the toolbox capabilities: Expected for 2025 Q4 Expected for 2026 Q1 Expected for 2026 Q2 Digital Twin Toolbox 14th - 20th of July 2025 - Foss4g Europe
25. Check it out on Github: https://github.com/geosolutions-it/digital-twin-toolbox Pre-Release at: https://github.com/geosolutions-it/digital-twin-toolbox/releases/tag/v1.0.0-rc3 Online Documentation: https://github.com/geosolutions-it/digital-twin-toolbox/wiki Tutorials are also available in the WIKI: https://github.com/geosolutions-it/digital-twin-toolbox/wiki/Tutorials Check out the webinar on Youtube: https://youtu.be/owQW-AUjk0U?si=yc1j_KTiJHsXwUCL Digital Twin Toolbox - Online resources 14th - 20th of July 2025 - Foss4g Europe
26. That’s all folks! Questions? info@geosolutionsgroup.com 14th - 20th of July 2025 - Foss4g Europe