77 lines
3.5 KiB
C#
77 lines
3.5 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using System;
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public class DisplayLongitudeAndLatitude : MonoBehaviour
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{
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// Start is called before the first frame update
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private Vector3 east = new Vector3(1, 0, 0);//x东
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private Vector3 south = new Vector3(0, 0, -1);//-z南
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private Vector3 west = new Vector3(-1, 0, 0);//-x西
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private Vector3 north = new Vector3(0, 0, 1);//z北
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private Camera cam;
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Vector3 towerCenterPosition = new Vector3(-177.477f, 62.62579f, -73.2408f);//xyz
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Vector3 towerCenterWorldPosition = new Vector3(116.6541536233f, 23.649973126f, 62.62579f);//经纬高程东经和北纬如何和unity里面的米按照固定的比例转换，高程和unity里是一致的
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//一个unity里面的东西，一个现实世界的坐标，2个控制点得到unity里面1米，即现实世界的1米在不考虑地球曲率的时候对应大概多少经纬度
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Vector3 beixiqiaoStoneTabletPosition = new Vector3(-19.4974f, 17.278f, 7.5837f);
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Vector3 beixiqiaoStoneTabletWorldPosition = new Vector3(116.655079685f, 23.650741f, 17.278f);
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private Vector3 ControlPointsDeltaInUnity;
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private Vector3 ControlPointsDeltaInRealWorld;
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private float horizontalUnit;
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private float verticalUnit;
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public string outputPosition;
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public static string ConvertToDegreesMinutesSeconds(float decimalDegrees, int decimalPlaces = 2)
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{
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// 处理负数
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bool isNegative = decimalDegrees < 0;
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decimalDegrees = Mathf.Abs(decimalDegrees);
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// 提取度
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int degrees = Mathf.FloorToInt(decimalDegrees);
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// 提取分
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float remaining = (decimalDegrees - degrees) * 60;
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int minutes = Mathf.FloorToInt(remaining);
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// 提取秒
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float seconds = (remaining - minutes) * 60;
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// 格式化输出，添加正负号
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string sign = isNegative ? "-" : "";
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return $"{sign}{degrees}°{minutes}'{seconds.ToString("F" + decimalPlaces)}\"";
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}
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void Start()
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{
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cam = Camera.main;
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ControlPointsDeltaInUnity = beixiqiaoStoneTabletPosition - towerCenterPosition;//控制点在unity的差距
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ControlPointsDeltaInRealWorld = beixiqiaoStoneTabletWorldPosition - towerCenterWorldPosition;//控制点在现实世界的差距
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//设计目标转换为多少米每度，先算经度方向，再算纬度方向,计算出来单位之后还是用塔顶点来做距离计算
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horizontalUnit = Math.Abs(ControlPointsDeltaInUnity.x / ControlPointsDeltaInRealWorld.x);
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verticalUnit = Math.Abs(ControlPointsDeltaInUnity.z / ControlPointsDeltaInRealWorld.y);
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}
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// Update is called once per frame
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void Update()
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{
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//float deltaHeight = cam.transform.position.y - towerCenterPosition.y;
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float currentCamElevation = cam.transform.position.y;
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Vector3 deltaBetweenCamAndtowerCenter = cam.transform.position - towerCenterPosition;//这个是unity里面的delta，转化为经纬度，但是高程是没用的，只要看x和z，x为东，z为北
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float horizontalDelta = deltaBetweenCamAndtowerCenter.x / horizontalUnit;
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float verticalDelta = deltaBetweenCamAndtowerCenter.z / verticalUnit;
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float currentCamLongitude = towerCenterWorldPosition.x + horizontalDelta;
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float currentCamLatitude = towerCenterWorldPosition.y + verticalDelta;
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string Longitude = ConvertToDegreesMinutesSeconds(currentCamLongitude);
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string Latitude = ConvertToDegreesMinutesSeconds(currentCamLatitude);
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string outputData = "经度：" + Longitude + " " + "纬度：" + Latitude + " " + "高程：" + currentCamElevation.ToString("F2");
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//string outputData = currentCamLongitude.ToString();
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Debug.Log(outputData);
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outputPosition = outputData;
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}
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} |