MoonElevationModel.java

/*
Copyright (C) 2001, 2006 United States Government
as represented by the Administrator of the
National Aeronautics and Space Administration.
All Rights Reserved.
*/
package gov.nasa.worldwind.globes;

import gov.nasa.worldwind.avlist.*;
import gov.nasa.worldwind.geom.*;
import gov.nasa.worldwind.util.LevelSet;
import gov.nasa.worldwind.Configuration;

/**
 * @author Patrick Murris
 * @version $Id: MoonElevationModel.java 5189 2008-04-27 04:06:56Z patrickmurris $
 */
public class MoonElevationModel extends BasicElevationModel
{
    private static double HEIGHT_OF_HIGHEST_PLACE_ON_THE_MOON = 8000d; // meters
    private static double DEPTH_OF_SOUTH_POLE_AITKEN_BASIN = -6000d; // meters

    public MoonElevationModel()
    {
        super(makeLevels(), DEPTH_OF_SOUTH_POLE_AITKEN_BASIN, HEIGHT_OF_HIGHEST_PLACE_ON_THE_MOON);
        this.setNumExpectedValuesPerTile(22500);
        String extremesFileName =
            Configuration.getStringValue("gov.nasa.worldwind.avkey.ExtremeElevations.MoonTopo.FileName");
        if (extremesFileName != null)
            this.loadExtremeElevations(extremesFileName);
    }

    private static LevelSet makeLevels()
    {
        AVList params = new AVListImpl();

        params.setValue(AVKey.TILE_WIDTH, 150);
        params.setValue(AVKey.TILE_HEIGHT, 150);
        params.setValue(AVKey.DATA_CACHE_NAME, "Moon/moontopozip");
        params.setValue(AVKey.SERVICE, "http://worldwind25.arc.nasa.gov/moon/tile.aspx");
        params.setValue(AVKey.DATASET_NAME, "moontopozip");
        params.setValue(AVKey.FORMAT_SUFFIX, ".bil");
        params.setValue(AVKey.NUM_LEVELS, 8);
        params.setValue(AVKey.NUM_EMPTY_LEVELS, 0);
        params.setValue(AVKey.LEVEL_ZERO_TILE_DELTA, new LatLon(Angle.fromDegrees(20d), Angle.fromDegrees(20d)));
        params.setValue(AVKey.SECTOR, Sector.FULL_SPHERE);
        return new LevelSet(params);
    }
}