Package org.geoforge.worldwind.render

Source Code of org.geoforge.worldwind.render.GfrRndSurfaceSegmentWiseYesAbs

/*
*  Copyright (C) 2011-2014 GeoForge Project
*
*  This program is free software; you can redistribute it and/or
*  modify it under the terms of the GNU Lesser General Public License
*  as published by the Free Software Foundation; either version 2
*  of the License, or (at your option) any later version.
*
*  This program is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU Lesser General Public License for more details.
*
*  You should have received a copy of the GNU Lesser General Public License
*  along with this program; if not, write to the Free Software
*  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

package org.geoforge.worldwind.render;

import gov.nasa.worldwind.WorldWind;
import gov.nasa.worldwind.avlist.AVKey;
import gov.nasa.worldwind.geom.LatLon;
import gov.nasa.worldwind.geom.Position;
import java.beans.PropertyChangeListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Observer;
import java.util.logging.Logger;
import org.geoforge.lang.handler.IGfrHandlerLifeCycleObject;
import org.geoforge.lang.util.geography.GfrUtilDmsOperation;
import org.geoforge.java.util.logging.filehandler.FileHandlerLogger;
import org.geoforge.worldwind.handler.IGfrHandlerObjectRender;
import org.geoforge.worldwind.handler.IGfrHandlerWwdEarthObjectGeoforgeRenderableLayer;

/**
*
* @author Amadeus.Sowerby
*
* email: Amadeus.Sowerby_AT_gmail.com ... please remove "_AT_" from the above
* string to get the right email address
*/
abstract public class GfrRndSurfaceSegmentWiseYesAbs extends GfrDirectedPath implements
        IGfrHandlerLifeCycleObject,
        IGfrHandlerWwdEarthObjectGeoforgeRenderableLayer,
        Observer,
        IGfrHandlerObjectRender
{

   // ----
   // begin: instantiate logger for this class
   final private static Logger _LOGGER_ = Logger.getLogger(GfrRndSurfaceSegmentWiseYesAbs.class.getName());

   static
   {
      GfrRndSurfaceSegmentWiseYesAbs._LOGGER_.addHandler(FileHandlerLogger.s_getInstance());
   }
   // end: instantiate logger for this class
   // ----

   protected String _strId = null;

   protected GfrRndSurfaceSegmentWiseYesAbs(
           PropertyChangeListener lstShouldRedraw,
           String strId,
           String strName,
           List<Position> lstPosition)
           throws Exception
   {
      super(lstPosition);

      this._strId = strId;

      setNameThis(strName);
      setEnabledTooltipThis();

      if (lstShouldRedraw != null)
         super.addPropertyChangeListener(lstShouldRedraw);

      super.setVisible(true);
      super.setAltitudeMode(WorldWind.CLAMP_TO_GROUND);

      super.setFollowTerrain(true);
      super.setPathType(AVKey.GREAT_CIRCLE);

   }

   @Override
   public String getIdObjectGeoforgeWwdEarth()
   {
      return this._strId;
   }

   @Override
   public Position getPositionBarycentricObjectGeoforgeWwdEarth() throws Exception
   {
      ArrayList<LatLon> altPos = new ArrayList<LatLon>();

      for (LatLon llnCur : super.getPositions())
      {
         altPos.add(llnCur);
      }

      if (altPos.size() != 2)
      {
          String strSevere = "altPos.size() != 2, altPos.size()=" + altPos.size();
          GfrRndSurfaceSegmentWiseYesAbs._LOGGER_.severe(strSevere);
         throw new Exception(strSevere);
      }

      LatLon posBeg = altPos.get(0);
      LatLon posEnd = altPos.get(1);

      LatLon latLonMid = LatLon.interpolateGreatCircle(0.5, posBeg, posEnd);

      return new Position(latLonMid, 0);

   }

   @Override
   public boolean init()
   {
      try
      {
         setAttributesThis();
      }
      catch (Exception exc)
      {
         exc.printStackTrace();
         String str = exc.getMessage();
         GfrRndSurfaceSegmentWiseYesAbs._LOGGER_.severe(str);
         return false;
      }

      return true;
   }

   @Override
   public void destroy()
   {
   }

   @Override
   public double getCharacteristicDimensionObjectGeoforgeRenderableLayer() throws Exception
   {
      ArrayList<LatLon> altPos = new ArrayList<LatLon>();

      for (LatLon location : super.getPositions())
      {
         altPos.add(location);
      }

      if (altPos.size() != 2)
         throw new Exception("Unsupported segment size : " + altPos.size());

      LatLon posBeg = altPos.get(0);
      LatLon posEnd = altPos.get(1);


      return GfrUtilDmsOperation.s_getDistanceFromRad(
              posBeg.getLatitude().getRadians(),
              posBeg.getLongitude().getRadians(),
              posEnd.getLatitude().getRadians(),
              posEnd.getLongitude().getRadians());

   }

   @Override
   public void setNameThis(String strName)
   {
      super.setValue(gov.nasa.worldwind.avlist.AVKey.DISPLAY_NAME, strName);
      super.setValue(GfrKeysRnd.STR_HAS_CONTEXTUAL_MENU, true); // always true
   }

}
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