georss.java

world wind java sdk 源码

/*
Copyright (C) 2001, 2007 United States Government as represented by
the Administrator of the National Aeronautics and Space Administration.
All Rights Reserved.
*/
package gov.nasa.worldwind.examples;

import gov.nasa.worldwind.formats.georss.GeoRSSParser;
import gov.nasa.worldwind.layers.RenderableLayer;
import gov.nasa.worldwind.render.Renderable;

/**
 * @author dcollins
 * @version $Id: GeoRSS.java 4019 2007-12-21 01:19:12Z dcollins $
 */
public class GeoRSS extends ApplicationTemplate
{
    private static class AppFrame extends ApplicationTemplate.AppFrame
    {
        public AppFrame()
        {
            super(true, true, false);

            RenderableLayer layer = this.buildGeoRSSLayer();
            layer.setName("GeoRSS Shapes");
            insertBeforePlacenames(this.getWwd(), layer);
            this.getLayerPanel().update(this.getWwd());
        }

        private RenderableLayer buildGeoRSSLayer()
        {
            RenderableLayer layer = new RenderableLayer();
            java.util.List<Renderable> shapes;

            shapes = GeoRSSParser.parseShapes(GeoRSS_DOCSTRING_A);
            if (shapes != null)
                addRenderables(layer, shapes);

            shapes = GeoRSSParser.parseShapes(GeoRSS_DOCSTRING_B);
            if (shapes != null)
                addRenderables(layer, shapes);

            return layer;
        }

        private void addRenderables(RenderableLayer layer, Iterable<Renderable> renderables)
        {
            for (Renderable r : renderables)
                layer.addRenderable(r);
        }
    }

    private static final String GeoRSS_DOCSTRING_A =
        "<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
        "<feed xmlns=\"http://www.w3.org/2005/Atom\"" +
        "      xmlns:georss=\"http://www.georss.org/georss\"" +
        "      xmlns:gml=\"http://www.opengis.net/gml\">" +
        "  <title>Earthquakes</title>" +
        "    <subtitle>International earthquake observation labs</subtitle>" +
        "    <link href=\"http://example.org/\"/>" +
        "    <updated>2005-12-13T18:30:02Z</updated>" +
        "    <author>" +
        "      <name>Dr. Thaddeus Remor</name>" +
        "      <email>[e-mail]</email>" +
        "    </author>" +
        "    <id>urn:uuid:60a76c80-d399-11d9-b93C-0003939e0af6</id>" +
        "  <entry>" +
        "    <title>M 3.2, Mona Passage</title>" +
        "    <link href=\"http://example.org/2005/09/09/atom01\"/>" +
        "    <id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>" +
        "    <updated>2005-08-17T07:02:32Z</updated>" +
        "    <summary>We just had a big one.</summary>" +
        "    <georss:where>" +
        "      <gml:Polygon>" +
        "        <gml:exterior>" +
        "          <gml:LinearRing>" +
        "            <gml:posList>" +
        "              45.256 -110.45 46.46 -109.48 43.84 -109.86 45.256 -110.45" +
        "            </gml:posList>" +
        "          </gml:LinearRing>" +
        "        </gml:exterior>" +
        "      </gml:Polygon>" +
        "    </georss:where>" +
        "  </entry>" +
        "</feed>";

    private static final String GeoRSS_DOCSTRING_B =
        "<feed xmlns=\"http://www.w3.org/2005/Atom\"" +
        "              xmlns:georss=\"http://www.georss.org/georss\">" +
        "              <title>scribble</title>" +
        "              <id>http://example.com/atom</id>" +
        "              <author><name>Christopher Schmidt</name></author>" +
        "<entry>" +
        "  <id>http://example.com/19.atom</id>" +
        "  <link href=\"http://example.com/19.html\"/>" +
        "  <title>Feature #19</title>" +
        "  <content type=\"html\">Some content.</content>" +
        "  <georss:line>" +
        "    23.1811523438 -159.609375 " +
        "    22.5 -161.564941406 " +
        "    20.654296875 -160.422363281 " +
        "    18.4350585938 -156.247558594 " +
        "    18.3471679688 -154.731445312 " +
        "    19.951171875 -153.588867188 " +
        "    21.8188476562 -155.983886719" +
        "    23.02734375 -158.994140625" +
        "    23.0932617188 -159.631347656" +
        "  </georss:line>" +
        "</entry>" +
        "</feed>";

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