JAVA 根据经纬度算出附近的正方形的四个角的经纬度

  /**
*
* @param longitude 经度
* @param latitude 纬度
* @param distance 范围(米)
* @return
*/
public static Map<String, double[]> returnLLSquarePoint(double longitude, double latitude, double distance) {
Map<String, double[]> squareMap = new HashMap<String, double[]>();
// 计算经度弧度,从弧度转换为角度
double dLongitude = 2 * (Math.asin(Math.sin(distance
/ (2 * 6378137))
/ Math.cos(Math.toRadians(latitude))));
dLongitude = Math.toDegrees(dLongitude);
// 计算纬度角度
double dLatitude = distance / 6378137;
dLatitude = Math.toDegrees(dLatitude);
// 正方形
double[] leftTopPoint = { latitude + dLatitude, longitude - dLongitude };
double[] rightTopPoint = { latitude + dLatitude, longitude + dLongitude };
double[] leftBottomPoint = { latitude - dLatitude,
longitude - dLongitude };
double[] rightBottomPoint = { latitude - dLatitude,
longitude + dLongitude };
squareMap.put("leftTopPoint", leftTopPoint);
squareMap.put("rightTopPoint", rightTopPoint);
squareMap.put("leftBottomPoint", leftBottomPoint);
squareMap.put("rightBottomPoint", rightBottomPoint);
System.out.println("leftTop:"+leftTopPoint[0]+"======"+leftTopPoint[1]);
System.out.println("rightTop:"+rightTopPoint[0]+"======"+rightTopPoint[1]);
System.out.println("leftBottom:"+leftBottomPoint[0]+"======"+leftBottomPoint[1]);
System.out.println("rightBottom:"+rightBottomPoint[0]+"======"+rightBottomPoint[1]);
return squareMap;
}
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