#ifndef _DATA_FUNC_H
#define _DATA_FUNC_H
#include <fstream>
#include <iostream>
#include <string.h>
#include <sstream>
#include <iomanip>
#include <ctime>
#include <cmath>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#define pole_radius 6356752.3
#define equator_radius 6378137
#define pi 3.1415926535897932384626433832795
#define OUTPUT "-o"
using namespace std;

struct vector //定义矢量结构体
{
	double x,y,z;
};

struct vertex //定义顶点结构体
{
	int No;//顶点序号
	vector vt;;//顶点坐标
};

struct edge
{
	int No;
	int ver[2];
};

struct face
{
	int No;
	int ver[3];
};

struct tetra //定义四面体结构体
{
	int No;//四面体序号
	int ver[4];//相应四面体顶点序号
};

struct sphere_point{//定义球坐标点
	double phi,thet,radius;
};

double WGS84_r(double lati){//返回WGS84参考椭球半径
	return pole_radius*equator_radius/sqrt(pow(pole_radius,2)*pow(cos((double) lati*pi/180),2)+pow(equator_radius,2)*pow(sin((double) lati*pi/180),2));
}

vector SCS2CCS(sphere_point p1){//球坐标转直角坐标
	vector v;
	v.x = p1.radius*sin((0.5-p1.thet/180.0)*pi)*cos((2.0+p1.phi/180.0)*pi);
	v.y = p1.radius*sin((0.5-p1.thet/180.0)*pi)*sin((2.0+p1.phi/180.0)*pi);
	v.z = p1.radius*cos((0.5-p1.thet/180.0)*pi);
	return v;
}
#endif