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osmCoverage / src / osm / jp / api / OsmnodeArea.java
@hayashi hayashi on 30 May 2018 2 KB OverpassAPI
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  1. package osm.jp.api;
  2.  
  3. import java.util.ArrayList;
  4. import org.w3c.dom.Node;
  5.  
  6. /**
  7.  * OSM.xml の「Area(way)」ノード
  8.  * 例）
  9.  * <pre>{@code 
  10.  *  <node id="5645448449" lat="35.7506438" lon="139.7516866"/>
  11.  *  <node id="5645448450" lat="35.7507261" lon="139.7516913"/>
  12.  *  <node id="5645448451" lat="35.7507196" lon="139.7518665"/>
  13.  *  <node id="5645448452" lat="35.7506374" lon="139.7518619"/>
  14.  *  <node id="289445748" lat="35.5251815" lon="139.3256576">
  15.  *   <tag k="amenity" v="fuel"/>
  16.  *   <tag k="brand" v="出光"/>
  17.  *   <tag k="name" v="出光"/>
  18.  *   <tag k="name:en" v="Idemitsu"/>
  19.  *   <tag k="opening_hours" v="24/7"/>
  20.  * </node>
  21.  *   <way id="591327850">
  22.  *     <nd ref="5645448449"/>
  23.  *     <nd ref="5645448450"/>
  24.  *     <nd ref="5645448451"/>
  25.  *     <nd ref="5645448452"/>
  26.  *     <nd ref="5645448449"/>
  27.  *     <tag k="amenity" v="fuel"/>
  28.  *     <tag k="name" v="Mobil"/>
  29.  *     <tag k="name:ja" v="モービル"/>
  30.  *   </way>
  31.  * }</pre>
  32.  * 
  33.  * @author yuu
  34.  */
  35. public class OsmnodeArea extends OsmnodeNode {
  36.     ArrayList<OsmnodeNd> ndList = new ArrayList<>();
  37.     
  38.     public OsmnodeArea(Node node) {
  39.         super(node);
  40.  
  41.         Node ndNode = node.getFirstChild();
  42.         while(ndNode != null) {
  43.             String nodeName = ndNode.getNodeName();
  44.             switch (nodeName) {
  45.             case "nd":
  46.                 OsmnodeNd nodeNd = new OsmnodeNd(ndNode);
  47.                 ndList.add(nodeNd);
  48.                 break;
  49.             }
  50.             ndNode = ndNode.getNextSibling();
  51.         }
  52.     }
  53.     
  54.     public void setPosition(ArrayList<OsmnodeNode> nodelist) {
  55.         int size = 0;
  56.         double lat = 0.0D;
  57.         double lon = 0.0D;
  58.         for (OsmnodeNd nd : ndList) {
  59.             OsmnodeNode node1 = getNode(nodelist, nd.ref);
  60.             if (node1 != null) {
  61.                 lat += Double.parseDouble(node1.latStr);
  62.                 lon += Double.parseDouble(node1.lonStr);
  63.                 size++;
  64.             }
  65.         }
  66.         lat = lat / size;
  67.         lon = lon / size;
  68.         this.latStr = String.format("%2.5f", lat);
  69.         this.lonStr = String.format("%3.5f", lon);
  70.     }
  71.     
  72.     static OsmnodeNode getNode(ArrayList<OsmnodeNode> nodelist, String id) {
  73.         for (OsmnodeNode node : nodelist) {
  74.             if (node.id.equals(id)) {
  75.                 return node;
  76.             }
  77.         }
  78.         return null;
  79.     }
  80.  
  81. }