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Illuminating the World: Generating Night Scenes with FME (Lightning Talk)

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An overview of the benefits of using FME to generate global lightmap overlays for night scenes in aeronautic simulation.

Veröffentlicht in: Technologie, Kunst & Fotos
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Illuminating the World: Generating Night Scenes with FME (Lightning Talk)

  1. 1. CONNECT. TRANSFORM. AUTOMATE. Illuminating the World: Generating Night Scenes with FME Joanna Hobbins GIS Analyst - CAE
  2. 2. Who we are CONNECT. TRANSFORM. AUTOMATE. A world leader in providing simulation and modelling technologies and integrated training solutions // DEFENCE & SECURITY // CIVIL // HEALTHCARE // MINING
  3. 3. CAE at a glance CONNECT. TRANSFORM. AUTOMATE.  Founded in Canada in 1947  Annual revenues of $2.1B  Approx. 8,000 employees  65+ years of breakthrough innovation  Largest installed base of flight simulators globally  100,000 pilots and crewmembers trained annually
  4. 4. The Goal  To produce realistic night scenes for the CAE TroposTM-6000XR visual image generator for civil aviation training CONNECT. TRANSFORM. AUTOMATE.
  5. 5. The Challenges  Global dataset  69,170 land-based 1-degree tiles  57.8GB of vector data as input  More than 35,000,000 road segments  55201 illumination zones  Automatic generation and validation  6 week timeframe CONNECT. TRANSFORM. AUTOMATE.
  6. 6. The Old Process  VMAP0 (1:1M scale) built up areas populated with road textures and light points randomly scattered inside polygons  Higher resolution insets created by tracing imagery in Photoshop and running scripts on the paths  Over 8 hours of manual work per 1-degree tile CONNECT. TRANSFORM. AUTOMATE.
  7. 7. The New Process  Use publicly available geospatial data  Roads  Open Street Maps  Illumination zones  Derived from DMSP-OLS Nighttime Lights 2012 CONNECT. TRANSFORM. AUTOMATE.
  8. 8. Before and After CONNECT. TRANSFORM. AUTOMATE.
  9. 9. Basic Workflow Clip roads to illumination zones Populate points along roads Convert to raster Process raster with ImageMagick Restore georeferencing Combine Tiles CONNECT. TRANSFORM. AUTOMATE.
  10. 10. Tips and techniques  ImageMagick http://www.imagemagick.org/  Command line software for image editing  Useful for focal analysis tools not available in FME CONNECT. TRANSFORM. AUTOMATE.
  11. 11. Tips and techniques 2  Combining workspace runner and custom transformer  Run multiple child workspaces at the same time but all workspaces completed before continuing to process CONNECT. TRANSFORM. AUTOMATE.
  12. 12. Thank You!  Questions?  For more information:  Joanna Hobbins joanna.hobbins@cae.com  CAE  http://www.cae.com/ CONNECT. TRANSFORM. AUTOMATE.