NASA World Wind for Java  API Overview
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  • 1. Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License NASA World Wind for Java API Overview Fabrizio Giudici Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 2. In a few words... Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● 3D API for rendering the Earth – ... but also other planets ● Default data from NASA – You can feed other data providers – Beware of terms of use ● You can add your own objects Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 3. Some basic facts Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Based on JOGL (OpenGL bindings for Java) – Fast! – Fast Video Card required – But beware of drivers (especially in Linux) – Native library required ● You don't need to learn JOGL Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 4. Basic classes Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Configuration – How to set up things ● WorldWindowGLCanvas – The components that renders the scene ● Model – What we are going to render Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 5. Basic classes Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Layer(s) – Stacked sets of rendered objects ● View, OrbitView – The coordinates and other attributes of the view point ● SceneController – The controller Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 6. Standard Layers Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Stars ● USGSUrbanAreaOrtho ● Fog ● CountryBoundaries ● SkyGradient ● EarthNASAPlaceName ● BMNGSurface ● ScaleBar ● LandsatI3 ● WorldMap ● USGSDigitalOrtho ● Compass Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 7. The demos Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● ViewIteration ● SurfaceImages ● GlobalGridAboveSurface ● TexturedSurfaceShape ● Shapes ● Tracks ● DraggingShapes ● AnaglyphStereo run-demo.bash demo_name Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 8. ViewIteration Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Goes to a specific location applying a smooth transition ● OrbitView ● ScheduledOrbitViewStateIterator Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 9. GlobalGridAboveSurface Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Draws a grid over the surface ● RenderableLayer ● PolyLine – color – numSegments – followTerrain Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 10. Shapes Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Sticks and renders many different shapes at given coordinates ● RenderableLayer – SurfaceSector, SurfaceEllipse, SurfaceSquare, SurfaceCircle, SurfaceQuad, Quadrilateral, SurfacePolygon, PolyLine ● IconLayer ● WWIcon, UserFacingIcon Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 11. DraggingShapes Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Surface shapes can be selected and dragged ● SelectListener – SelectEvent.HOVER – SelectEvent.ROLLOVER – SelectEvent.DRAG – SelectEvent.DRAG_END Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 12. SurfaceImages Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Paints a given image over the surface ● RenderableLayer – SurfaceImage Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 13. TexturedSurfaceShape Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Paints a shape with a given texture over the surface ● RenderableLayer – SurfaceSector – TexturePaint Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 14. Tracks Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Renders a track with waypoints ● TrackMarkerLayer – Track Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 15. Anaglyph Stereo Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● Renders a 3D view that can be viewer with 3D glasses ● Configuration ● AnaglyphSceneController – setDisplayMode(...) – setFocusAngle(...) Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007
  • 16. Contacts & Links Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License ● http://worldwind.arc.nasa.gov/java ● http://bluemarine.tidalwave.it ● http://forceten.tidalwave.it (soon) ● http://weblogs.java.net/blog/fabriziogiudici ● http://www.tidalwave.it/people Fabrizio Giudici – fabrizio.giudici@tidalwave.it – JUG Milano Javaday Roma - 01/12/2007