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3D GIS

3D GIS. So far, all data has had x, y coordinates North-south and east-west 3D requires a z value E levation and/or depth. Mt. Everest Wordpress.com. Elevation: Height of land. Typically: Elevation above “mean sea level” By default, from the ellipsoid defined in the datum

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3D GIS

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  1. 3D GIS • So far, all data has had x, y coordinates • North-south and east-west • 3D requires a z value • Elevation and/or depth Mt. Everest Wordpress.com

  2. Elevation: Height of land • Typically: • Elevation above “mean sea level” • By default, from the ellipsoid defined in the datum • Can have a “vertical datum” • Typically local datums Shuttle Radar Telemetry Mission (SRTM) Jet Propulsion Labs

  3. Bathymetry • Depth below “mean sea level” Frank A. Palmer and Louise B.Crary, that collided and sank in Massachusetts Bay in 1902.

  4. Crater Lake Bathymetry • From over 2000 surveys Wikimedia.org

  5. ArcScene – 3D Viewer

  6. Start with a DEM

  7. All Layers at 0 Elevation

  8. 3D Settings Elevation from surfaces Elevation From Features

  9. Navigating 3D

  10. X, Y, Z Not: Wikipedia Adobe

  11. Pitch, Yaw, and Roll copterix.perso.rezel.net

  12. Three Dimensions: X, Y, Z • Six degrees of freedom! Wikipedia

  13. Moving Around

  14. Adding Data

  15. With Base Heights Set

  16. Problems

  17. Uses for ArcScene Esri

  18. 3D points displayed in volume space DOE/OSU

  19. DOE/OSU

  20. DOE/OSU

  21. Can also create animations • See youtube • http://www.youtube.com/watch?v=qzkBnCBpQAM • Artificial terrain fly through (not ArcScene) • http://www.youtube.com/watch?v=nhXaScaT87o • With music in ArcScene (you can do better) • Note: ArcScene is not a gaming engine!

  22. Temporal Data • Adding temporal data to visualizations: • Land use change over time (NLCD) • Elevation and remotely sensed changes • Esri has added some temporal features: • Date/Time attributes • ArcMap is still basically a 2D application • More complex temporal analysis and visualizations require special software

  23. ArcGlobe?

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