buildingSMART Technical Room Webinar IFC HDF5

Transcript

1. IFC HDF5 Thomas Krijnen https://speakerdeck.com/aothms buildingSMART technical room webinar IFC HDF5 (binary)
2. IFC HDF5 Intro Use cases (large datasets, archival, point clouds, sensor data / digital twin) Technicalities buildingSMART technical room webinar IFC HDF5 (binary)
3. IFC SPF buildingSMART technical room webinar IFC HDF5 (binary)
4. IFC SPF Advantages: human readable and machine agnostic Disadvantages: Slow parse speed No partial reading no order on definitions no seeking ahead due to grammar buildingSMART technical room webinar IFC HDF5 (binary)
5. In this presentation Level of Detail/Development http://bimforum.org/wp-content/uploads/2015/11/Files-1.zip Huge files with heterogeneous contents (e.g point clouds, sensor data) Dramatically reduced read times buildingSMART technical room webinar IFC HDF5 (binary)
6. Thomas Krijnen ✉ thomas@aecgeeks.com @aothms Owner of AECgeeks, maintainer of IfcOpenShell, researcher at TU Delft in the NLs and formerly TU/e. buildingSMART technical room webinar IFC HDF5 (binary)
7. HDF5 Used in scientific computing EXPRESS mapping in ISO 10303 26 Adopted by NASA, Matlab, … buildingSMART technical room webinar IFC HDF5 (binary)
8. Use cases point clouds; archival; sensor data; …
9. Point cloud usage patterns acquisition and remodeling hybrid modeling as built verification structural health monitoring Integrated separate storage buildingSMART technical room webinar IFC HDF5 (binary)
10. IFC point cloud schema extension buildingSMART technical room webinar IFC HDF5 (binary)
11. IFC point cloud planar compression buildingSMART technical room webinar IFC HDF5 (binary)
12. Point cloud as deformation height map buildingSMART technical room webinar IFC HDF5 (binary)
13. Archival Long-term digital preservation properties Checksums Schema is encoded in serialization (ifc4, ifc4add1, ifc4add2, ifc4add2tc1 => IFC4 schema identifier) Rapid partial reading and meta-data extraction buildingSMART technical room webinar IFC HDF5 (binary)
14. Digital twins: real-time high frequency data in HDF5 packet table Query and inference on semantic data + high resolution time series in standardized and portable container buildingSMART technical room webinar IFC HDF5 (binary)
15. Technicalities schema mapping; mounting and federation; serialization profiles; numbers
16. IFC/EXPRESS in HDF5 buildingSMART technical room webinar IFC HDF5 (binary)
17. IFC/EXPRESS in HDF5 buildingSMART technical room webinar IFC HDF5 (binary)
18. IFC/EXPRESS in HDF5 buildingSMART technical room webinar IFC HDF5 (binary)
19. Read performance vs SPF buildingSMART technical room webinar IFC HDF5 (binary)
20. Layers of optimization Hierarchical storage of partial file chunks Partial decompression (disk i/o typically bottle-neck) Binary, fixed-length storage buildingSMART technical room webinar IFC HDF5 (binary)
21. Advanced use cases: Mounting and groups buildingSMART technical room webinar IFC HDF5 (binary)
22. Advanced use cases: Mounting and groups buildingSMART technical room webinar IFC HDF5 (binary)
23. Serialization profiles buildingSMART technical room webinar IFC HDF5 (binary)
24. File size vs SPF buildingSMART technical room webinar IFC HDF5 (binary)
25. Read more Thomas Krijnen, Jakob Beetz (2020) An efficient binary storage format for IFC building models using HDF5 hierarchical data format, Automation in Construction 113, https://doi.org/10.1016/j.autcon.2020.103134 Thomas Krijnen, Jakob Beetz (2018) A SPARQL query engine for binary-formatted IFC building models, Automation in Construction 95, https://doi.org/10.1016/j.autcon.2018.07.014 Thomas Krijnen, Jakob Beetz (2017) An IFC schema extension and binary serialization format to efficiently integrate point cloud data into building models, Advanced Engineering Informatics 33 https://doi.org/10.1016/j.aei.2017.03.008 buildingSMART technical room webinar IFC HDF5 (binary)
26. Get in touch ✉ thomas@aecgeeks.com @aothms buildingSMART technical room webinar IFC HDF5 (binary)