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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.

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/*
 * Copyright (C) 2012 United States Government as represented by the Administrator of the
 * National Aeronautics and Space Administration.
 * All Rights Reserved.
 */

package gov.nasa.worldwindx.performance;

import gov.nasa.worldwind.WorldWind;
import gov.nasa.worldwindx.examples.ApplicationTemplate;
import gov.nasa.worldwind.geom.Position;
import gov.nasa.worldwind.layers.RenderableLayer;
import gov.nasa.worldwind.render.*;

import java.util.ArrayList;

/**
 * @author tag
 * @version $Id: PointPlacemarksEverywhere.java 968 2012-12-06 02:52:49Z dcollins $
 */
public class PointPlacemarksEverywhere extends ApplicationTemplate
{
    public static class AppFrame extends ApplicationTemplate.AppFrame
    {
        public AppFrame()
        {
            super(true, true, false);

            makeMany();
        }

        protected void makeMany()
        {
            int altitudeMode = WorldWind.RELATIVE_TO_GROUND;

            double minLat = -50, maxLat = 50, minLon = -140, maxLon = -10;
            double delta = 1.5;
            double intervals = 5;

            ArrayList positions = new ArrayList();

            RenderableLayer layer = new RenderableLayer();

            int count = 0;
            for (double lat = minLat; lat <= maxLat; lat += delta)
            {
                for (double lon = minLon; lon <= maxLon; lon += delta)
                {
                    positions.clear();

                    PointPlacemark pm = new PointPlacemark(Position.fromDegrees(lat, lon, 5e4));
                    pm.setAltitudeMode(altitudeMode);
//                    PointPlacemarkAttributes attrs = new PointPlacemarkAttributes();
//                    pm.setAttributes(attrs);
                    layer.addRenderable(pm);
                    ++count;
                }
            }
            System.out.printf("%d Placemarks, Altitude mode = %s\n", count, positions.size(),
                altitudeMode == WorldWind.RELATIVE_TO_GROUND ? "RELATIVE_TO_GROUND" : "ABSOLUTE");

            insertBeforeCompass(getWwd(), layer);
            this.getLayerPanel().update(this.getWwd());
        }
    }

    public static void main(String[] args)
    {
        ApplicationTemplate.start("World Wind Very Many Point Placemarks", AppFrame.class);
    }
}