package org.springblade.common.utils;

import java.math.BigDecimal;

public class PositionUtil {

	/**
	 * 度分秒转经纬度
	 * @param lng
	 * @return
	 */
	public static Double tranformPos(String lng){
		String[] lntArr = lng
			.trim()
			.replace("°", ";")
			.replace("˚", ";")
			.replace("′", ";")
			.replace("'", ";")
			.replace("″", ";")
			.replace("\"", "")
			.split(";");
		double degrees = Double.parseDouble(lntArr[0]);
		double minutes = Double.parseDouble(lntArr[1])/60;
		double seconds = Double.parseDouble(lntArr[2])/3600;
		double decimal = degrees + minutes + seconds;
		BigDecimal bd = new BigDecimal(decimal);
		double roundedNumber = bd.setScale(5, BigDecimal.ROUND_HALF_UP).doubleValue();
		// 返回
		return roundedNumber;
	}

	/**
	 * 度分秒转经纬度
	 *
	 * @param dms 116°25'7.85"
	 * @return 116.418847
	 */
	public static Double dfm2LatLng(String dms) {
		Double flag = 0.0;
		if (dms == null) return flag;
		try {
			dms = dms.replace(" ", "");
			String[] str2 = dms.split("°");
			if (str2.length < 2) return flag;
			int d = Integer.parseInt(str2[0]);
			String[] str3 = str2[1].split("\'");
			if (str3.length < 2) return flag;
			int f = Integer.parseInt(str3[0]);
			String str4 = str3[1].substring(0, str3[1].length() - 1);
			double m = Double.parseDouble(str4);

			double fen = f + (m / 60);
			double du = (fen / 60) + Math.abs(d);
			if (d < 0) du = -du;
			return Double.parseDouble(String.format("%.7f", du));
		} catch (Exception e) {
			e.printStackTrace();
		}
		return flag;
	}

	// 引用形式的描述信息
	public static Double DMSToDecimal(String dms) {
		String[] parts = dms.split("[°'\"\\s]");
		double degrees = Double.parseDouble(parts[0]);
		double minutes = Double.parseDouble(parts[1]);
		double seconds = Double.parseDouble(parts[2]);
		double decimal = degrees + minutes/60 + seconds/3600;
		return decimal;
	}

	public static void main(String[] args) {
		String lng = "27°16′48″";
		Double aDouble = tranformPos(lng);
		System.out.println("aDouble = " + aDouble);
	}

}