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

1. CONNECT. TRANSFORM. AUTOMATE.
Illuminating the World:
Generating Night Scenes with FME
Joanna Hobbins
GIS Analyst - CAE

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. CAE at a glance
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 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. The Goal
 To produce realistic
night scenes for the
CAE TroposTM-6000XR
visual image generator
for civil aviation
training
CONNECT. TRANSFORM. AUTOMATE.

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
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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
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7. The New Process
 Use publicly available geospatial data
 Roads
 Open Street Maps
 Illumination zones
 Derived from DMSP-OLS Nighttime Lights 2012
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8. Before and After
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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. Tips and techniques
 ImageMagick http://www.imagemagick.org/
 Command line software for image editing
 Useful for focal analysis tools not available in FME
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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
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12. Thank You!
 Questions?
 For more information:
 Joanna Hobbins joanna.hobbins@cae.com
 CAE
 http://www.cae.com/
CONNECT. TRANSFORM. AUTOMATE.