confine.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.surface;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2004</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class Confine {
  private static final double W = 113.366480706054;
  private static final double E = 122.727132752332;
  private static final double S = 29.2171275234825;
  private static final double N = 34.7716770480431;

  public Confine() {
  }
  public static boolean isConfine(double latY,double lonX){
   if((latY<N)&&(latY>S)){
     if((lonX<E)&&(lonX>W)){
       return true;
     }
   }
   return false;
 }
 public static boolean isLatYConfine(double latY){
   if((latY<N)&&(latY>S)){
     return true;
   }else{
     return false;
   }
 }
 public static boolean isLonXConfine(double lonX){
   if ( (lonX < E) && (lonX > W)) {
     return true;
   }else {
     return false;
   }
 }
}