gov/nasa/worldwind/layers/Earth/USGSDigitalOrtho.java

   1 /*
   2 Copyright (C) 2001, 2006 United States Government
   3 as represented by the Administrator of the
   4 National Aeronautics and Space Administration.
   5 All Rights Reserved.
   6 */
   7 package gov.nasa.worldwind.layers.Earth;
   8
   9 import gov.nasa.worldwind.avlist.*;
  10 import gov.nasa.worldwind.geom.*;
  11 import gov.nasa.worldwind.layers.BasicTiledImageLayer;
  12 import gov.nasa.worldwind.util.*;
  13
  14 /**
  15  * @author tag
  16  * @version $Id: USGSDigitalOrtho.java 2471 2007-07-31 21:50:57Z tgaskins $
  17  */
  18 public class USGSDigitalOrtho extends BasicTiledImageLayer
  19 {
  20     public USGSDigitalOrtho()
  21     {
  22         super(makeLevels());
  23         this.setMaxActiveAltitude(7e3d);
  24     }
  25
  26     private static LevelSet makeLevels()
  27     {
  28         AVList params = new AVListImpl();
  29
  30         params.setValue(AVKey.TILE_WIDTH, 512);
  31         params.setValue(AVKey.TILE_HEIGHT, 512);
  32         params.setValue(AVKey.DATA_CACHE_NAME, "Earth/USGS Digital Ortho");
  33         params.setValue(AVKey.SERVICE, "http://worldwind25.arc.nasa.gov/tile/tile.aspx");
  34         params.setValue(AVKey.DATASET_NAME, "101dds");
  35         params.setValue(AVKey.FORMAT_SUFFIX, ".dds");
  36         params.setValue(AVKey.NUM_LEVELS, 10);
  37         params.setValue(AVKey.NUM_EMPTY_LEVELS, 2);
  38
  39         Angle levelZeroDelta = Angle.fromDegrees(3.2);
  40         params.setValue(AVKey.LEVEL_ZERO_TILE_DELTA, new LatLon(levelZeroDelta, levelZeroDelta));
  41
  42         params.setValue(AVKey.SECTOR, new Sector(Angle.fromDegrees(17.84), Angle.fromDegrees(71.55),
  43             Angle.fromDegrees(-168.67), Angle.fromDegrees(-65.15)));
  44
  45         return new LevelSet(params);
  46     }
  47
  48     @Override
  49     public String toString()
  50     {
  51         return Logging.getMessage("layers.Earth.USGSDigitalOrtho.Name");
  52     }
  53 }