cutbynode.java

基于Java的地图数据管理软件。使用MySQL数据库管理系统。

package net.aetherial.gis.output.toLd.cut;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Element;
import net.aetherial.gis.surface.ItemValue;
import java.util.Vector;
import net.aetherial.gis.garmin.GarminGMLDoc;
import net.aetherial.gis.output.toLd.bianma.BmAtRepeate;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2004</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class CutByNode {

  private Node trk = null;
  private Node trk1 = null,trk2 = null,trk3 = null;
  private NodeList tps = null;
  private Node fitPointA = null, fitPointB = null;

  public CutByNode() {
  }

  public Node createNewTrks() {
    try {
//      this.createFlagPoint();
      this.reset();
      if (this.trk == null) {
        return null;
      }
      this.tps = ItemValue.getTracksPoint(this.trk);
      this.cut();

    }
    catch (Exception ex) {
      ex.printStackTrace();
      this.tps = null;
    }
//    this.deleteExcrescentTps();
    return this.trk;
  }

  private void createFlagPoint(){
    ItemValue.turnTracksPointToWaypoint(this.fitPointA);
    ItemValue.turnTracksPointToWaypoint(this.fitPointB);
  }

  private void reset(){
    this.trk1 = null;
    this.trk2 = null;
    this.trk3 = null;
  }

  private void cut() {
    Vector v1 = new Vector(), v2 = new Vector(), v3 = new Vector();
    boolean find = false;
    if (this.tps == null) {
      return;
    }
    else {
      BmAtRepeate bianma = new BmAtRepeate();
      if (!bianma.isTrkCanBeCut(this.trk)) {
        return;
      }
      for (int i = 0; i < this.tps.getLength(); i++) {
        if ( (this.tps.item(i) == this.fitPointA ||
              this.tps.item(i) == this.fitPointB) && !find) {
          v1.add(this.tps.item(i));
          v2.add(this.tps.item(i));
          find = true;
        }
        else if ( (this.tps.item(i) == this.fitPointA ||
                   this.tps.item(i) == this.fitPointB) && find) {
          v2.add(this.tps.item(i));
          v3.add(this.tps.item(i));
          find = false;
        }
        else if (find) {
          v2.add(this.tps.item(i));
        }
        else if ( (!find) && v2.size() != 0) {
          v3.add(this.tps.item(i));
        }
        else if ( (!find) && v2.size() == 0) {
          v1.add(this.tps.item(i));
        }
      }
      bianma.clearLdBianmaAtCut(this.trk);
//      System.out.println("v1.size() = " + v1.size() + ",v2.size() = " + v2.size() + ",v3.size() = " + v3.size());
      if (v1.size()>2) {
        this.trk1 = this.createNewTrack(v1);
        new RelateWPTAfterCut().relateToNewTrk(this.trk,this.trk1);
      }

      if (v2.size()>2) {
        this.trk2 = this.createNewTrack(v2);
        Node newNode = this.createNewTrack(v2);
        new RelateWPTAfterCut().relateToNewTrk(this.trk,this.trk2);
        new RelateWPTAfterCut().relateToNewTrk(this.trk,newNode);
        bianma.setTrkRepeatTo(this.trk2,newNode);
//        System.out.println(GarminGMLDoc.walkStructure(this.trk,2));

//        System.out.println(GarminGMLDoc.walkStructure(this.trk2,2));
//        System.exit(0);000||232332|

//        System.out.println("ref new Track:" + ItemValue.getTracksNumber(this.trk));
//        System.out.println("Create new Track:" + ItemValue.getTracksName(this.trk2));
      }

      if (v3.size()>2) {
        this.trk3 = this.createNewTrack(v3);
        new RelateWPTAfterCut().relateToNewTrk(this.trk,this.trk3);
      }

      ItemValue.removeTrack(this.trk);
    }
  }

  private Node createNewTrack(Vector ve){
    if (ve.size() == 0) {
      return null;
    }else{
//      GarminGMLDoc.ad
      Element e = GarminGMLDoc.addTrack(ItemValue.getTracksName(this.trk),this.trk);
      for (int i = 0; i < ve.size(); i++) {
        GarminGMLDoc.addTrackPoint(e,(Node)ve.get(i));
      }
      return e.getParentNode();
    }
  }

  public void setFitPointA(Node fitPointA) {
    this.fitPointA = fitPointA;
  }

  public void setTrk(Node trk) {
    this.trk = trk;
  }

  public void setFitPointB(Node fitPointB) {
    this.fitPointB = fitPointB;
  }

  public static void main(String[] args) {
    CutByNode cutbynode = new CutByNode();
  }

  public Node getTrk_Last() {
    return trk3;
  }

  public Node getTrk_Mid() {
    return trk2;
  }

  public Node getTrk_First() {
    return trk1;
  }
}