package com.se.simu.utils;

import com.alibaba.fastjson.JSONArray;
import org.osgeo.proj4j.BasicCoordinateTransform;
import org.osgeo.proj4j.CRSFactory;
import org.osgeo.proj4j.CoordinateReferenceSystem;
import org.osgeo.proj4j.ProjCoordinate;

public class ProjectionToGeographicUtil {
    public static JSONArray getPoint(Double x,Double y) {
        // 创建 CRSFactory 对象
        CRSFactory crsFactory = new CRSFactory();
        // 定义投影坐标系统，这里以 UTM 投影为例，zone 33N
        CoordinateReferenceSystem sourceCRS = crsFactory.createFromName("EPSG:4548");
        // 定义地理坐标系统，这里使用 WGS84
        CoordinateReferenceSystem targetCRS = crsFactory.createFromName("EPSG:4326");
        // 创建坐标转换对象
        BasicCoordinateTransform transform = new BasicCoordinateTransform(sourceCRS, targetCRS);
        //lon=116.683795  lat=39.90849042
        // 输入投影坐标，以 UTM 投影坐标为例，单位是米
        ProjCoordinate sourceCoord = new ProjCoordinate(x, y);
        ProjCoordinate targetCoord = new ProjCoordinate();

        // 执行坐标转换
        transform.transform(sourceCoord, targetCoord);
        JSONArray vertice = new JSONArray();
        vertice.add(targetCoord.x);
        vertice.add(targetCoord.y);
        vertice.add(0.0);
        return vertice;
    }

    public static JSONArray get4548Point(Double x,Double y) {
        // 创建 CRSFactory 对象
        CRSFactory crsFactory = new CRSFactory();
        // 定义投影坐标系统，这里以 UTM 投影为例，zone 33N
        CoordinateReferenceSystem sourceCRS = crsFactory.createFromName("EPSG:4326");
        // 定义地理坐标系统，这里使用 WGS84
        CoordinateReferenceSystem targetCRS = crsFactory.createFromName("EPSG:4548");
        // 创建坐标转换对象
        BasicCoordinateTransform transform = new BasicCoordinateTransform(sourceCRS, targetCRS);
        // 输入投影坐标，以 UTM 投影坐标为例，单位是米
        ProjCoordinate sourceCoord = new ProjCoordinate(x, y);
        ProjCoordinate targetCoord = new ProjCoordinate();
        // 执行坐标转换
        transform.transform(sourceCoord, targetCoord);
        JSONArray vertice = new JSONArray();
        vertice.add(targetCoord.x);
        vertice.add(targetCoord.y);
        return vertice;
    }

    public static void main(String[] args) {
        System.out.println(getPoint(470554.2614775232,4416699.023973457));
        System.out.println(get4548Point(116.65575979450138,39.883938395445966));
    }
}