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Scientific 3D Printing with GRASS GIS (FOSSGIS 2014)

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  • 1. Scientific 3D Printing with GRASS GIS A Work in Progress Report Dr. Peter Löwe FOSSGIS 2014 2014-03-20
  • 2. 2 In a nutshell • Interfacing GRASS GIS with 3D print workflows can be done with the current GRASS modules. • Prediction: Easy to use GRASS extensions for 3D printing will come soon. • Scientific 3D prints extend „flat“ 2D science communication • Decelerated haptic data access (no-display-needed) • But there‘s more to it…
  • 3. 3 Communicating scientific findings The challenge: • Picturing scientific data in one’s mind • Communicating this vision to someone else The need: A tangible representation of scientific results. 1492 Today Future ?
  • 4. 4 „The future is here“ (again) The potential of „3D printing“ as featured in the news:
  • 5. 5 „The future is here“ (again) The potential of „3D printing“ as featured in the news: • Guns !
  • 6. 6 „The future is here“ (again) The potential of „3D printing“ as featured in the news: • Guns ! • Human body parts !
  • 7. 7 „The future is here“ (again) The potential of „3D printing“ as featured in the news: • Guns ! • Human body parts ! • Clothes !
  • 8. 8 „The future is here“ (again) The potential of „3D printing“ as featured in the news: • Guns ! • Human body parts ! • Clothes ! • Candy !
  • 9. 9 „The future is here“ (again) The potential of „3D printing“ as featured in the news: • Guns ! • Human body parts ! • Clothes ! • Candy ! • Space Exploration !
  • 10. 10 3D Printing, the Gartner hype cycle, and science http://surveys.peerproduction.net/wp-content/uploads/2012/11/GoogleTrendsGartnerHypeCycle.png 3D Printing 2014
  • 11. 11 3D Printing, the Gartner hype cycle, and science http://surveys.peerproduction.net/wp-content/uploads/2012/11/GoogleTrendsGartnerHypeCycle.png 3D Printing 2014
  • 12. 12 3D Printing, the Gartner hype cycle, and science http://surveys.peerproduction.net/wp-content/uploads/2012/11/GoogleTrendsGartnerHypeCycle.png 3D Printing 2014 • Handpieces for science communication • among scientists • towards the general public • Showpieces for exhibitions / trade fairs • Condensed information on content and quality • <your application goes here> but
  • 13. 13 3D printing for science communication: The larger picture Technical Printing Process Metadata Management Scientific Data 3D Print Scientist Science Communication Target group
  • 14. 14 The Scientific Library perspective – Why bother ? • This is part of an emerging trend affecting (Geo-) Science and Research, Libraries and the FOSS Communities. • Identification, citation and preservation of scientific content needed. • A tide of „born digital“ specimen, like 3D prints, is coming. • Persistant identifiers are being introduced for scientific articles, data and software – and 3D prints, e.g: Digital Object Identifiers (DOI).
  • 15. 15 Libraries handle nontextual materials – including globes. Gravity- Field-Globe ? 3D printed Globe
  • 16. 16 Nontextual materials: Past and present The preservation of scientific data specimen is already part of research: "Der Heidelberger Karl-Theodor-Globus von 1751 bis 2000 Vergangenes mit gegenwärtigen Methoden für die Zukunft bewahren"
  • 17. 17 Linking research articles, data and 3D objects: Important for researchers … and research-based libraries Digital Object Identifier (DOI)
  • 18. 18 Technische Informations Bibliothek (TIB) German National Library of Science and Technology Global supplier for scientific and technical information Traditional text-based documents
  • 19. 1919 GetInfo Portal • 57 Mio. metadata indexed with access to the fulltext (document delivery, national licences, pay-per-view) • 160 Mio. documents available via metasearch TIB – German National Library of Science and Technology - Today
  • 20. 2020 Strategy – Move beyond text SimulationSimulation Scientific FilmsScientific Films 3D Objects3D Objects TextText Research DataResearch Data SoftwareSoftware
  • 21. 21 • Worldwide first Digital Object Identifier (DOI) registration agency for datasets (since 2005) TIB – German National Library of Science and Technology - DOI
  • 22. 22 The road ahead – the research library perspective Ultimate Goal: Interlinking and Search Across All Types of Digital Assets.
  • 23. 23 3D printing for science communication: GRASS GIS angle Technical Printing Process Metadata Management Scientific Data 3D Print Scientist Science Communication Target group
  • 24. 24 GRASS GIS Technical overview Data Technical Printing Process 3D Print Scientific Data
  • 25. 25 GRASS GIS Technical overview Data Technical Printing Process 3D Print Scientific Data 3D preprint: vtk, etc. png/pdf 3D preprints - just a gdal/ogr extension ?
  • 26. 26 GRASS GIS Technical overview Data Technical Printing Process 3D Print Scientific Data 3D preprint: vtk, etc. png/pdf 3D preprints - just a gdal/ogr extension ? Thematic generalisation is needed: r3.modules Thematic generalisation
  • 27. 27 Technical overview: Current situation Data v.in.ogr r.in.gdal Technical Printing Process 3D Print Scientific Data r.to.rast3 r3.mapcalc r3.out.vtk new modules new modules Ingest Volume generation Volume processing Export new modules
  • 28. 28 Wanted: 3D print workflow trailblazers ! • Volume generalisation with r3.x-modules requires currently these skills: • Science Interpreter/Communicator: „What message to convey ?“ • Technical/Software: create workflows in r3.mapcalc, script these • Admin/Pioneer: be able to install patches for GRASS7 due to bugs (volume-related), help improve code maturity
  • 29. 29 Example: Thematic generalisation with r3.mapcalc • Task: Separation of geologic volumes along complex faults („cutting pane“) • Requirement: Volume hulls must be continuous (no holes). • Solution: „Growing“ of fault lines into cutting panes with r3.mapcalc. Geologic stratum Faults Tricky part
  • 30. 30 Multiple linked learning processes Initial GIS-driven experiments GIS workflow development GIS modularisation Stakeholders Printing Process Expertise INAF Astrophysics Institute, Rome FabLab „Wissenschaftsladen“ Potsdam Materials Hardware Data Sources Tsunami Simulations 2D Data (Elevation Models) 3D Data (Geological models, soil penetrating radar) Software Workflows and Services TIB Hannover GFZ Potsdam Osaka City University
  • 31. 31 Processing: Software tools and formats GRASS 7 Paraview Preprint RapMan Printer Geologic Models Geodata
  • 32. 32 Hardware example: RapMan 3.2 3D printer Multi-colored ABS and PLA materials
  • 33. 33 RapMan 3.2: Reality check
  • 34. 34 RapMan 3.2: Reality check Marcel Ludwig Resident 3D printing expert at GFZ Potsdam
  • 35. 35 RapMan 3.2: Reality check Marcel Ludwig Resident 3D printing expert at GFZ Potsdam
  • 36. 36 RapMan 3.2: Reality check Raw Material Control Unit Print head, cooling fan Print in progress Marcel Ludwig Resident 3D printing expert at GFZ Potsdam
  • 37. 37 Close-Up: Actual printing Print head Internal support structure External support structure 3D printing in progress
  • 38. 38 Application examples
  • 39. 39 Elevation models
  • 40. 40 More elevation models Mekong River Catchment
  • 41. 41 More elevation models Mekong River Catchment Olympus Mons, Mars
  • 42. 42 More elevation models Mekong River Catchment Brukkaros Mountain, Namibia Olympus Mons, Mars
  • 43. 43 More elevation models Mekong River Catchment Brukkaros Mountain, Namibia Olympus Mons, Mars It glows in the dark !
  • 44. 44 Mars north polar cap / satellite-based ground penetrating Radar Radar Alessandro Frigeri, INAF, 2012 Images: GFZ Potsdam, INAF Complex underside Planet Mars: North Polar Cap
  • 45. 45 Layer stacks of 3D bodies (Geology) Images: GFZ Potsdam
  • 46. 46 Close-up: Geologic volume stack example Images: GFZ Potsdam
  • 47. 47 Complex data sets: Tsunami propagation space-time-cubes • Space Time Cube (STC) of tsunami wave propagation. • Complex wave propagation in time and space. • Allows visual model quality assessment. • Produced by GFZ Potsdam in 2012. • On permanent display at the Osaka City University (2014) 3D Print Tsunami Model Time Lon/Lat Tohoku Shoreline Pacific
  • 48. 48 Recap: But there‘s more to it.. • Interfacing GRASS GIS with 3D print workflows can already done with the current GRASS modules. • Prediction: Easy to use GRASS extensions for 3D printing will come soon. • Scientific 3D Prints extend „flat“ 2D science communication • Decelerated haptic data access (no-display-needed) • Large potential for science communication • The bigger picture of Open Science: Open Data, Open Source, DOI • Thematic generalisation via r3.x – modules. • Much more coming
  • 49. 49 Freely available geologic data sources ? The situation is improving http://opendtect.org/
  • 50. 50 Thanks for listening Have a great FOSSGIS 2014 ! Contact: peter.loewe@tib.uni-hannover.de