constants.h

来自「GIS地图坐标格式转换程序,大地坐标和UTM投影坐标之间的相互转换」· C头文件 代码 · 共 42 行

//constants.h

#ifndef CONSTANTS_H
#define CONSTANTS_H

#include "LatLong-UTMconversion.h"

const double PI = 3.14159265;
const double FOURTHPI = PI / 4;
const double deg2rad = PI / 180;
const double rad2deg = 180.0 / PI;

static Ellipsoid ellipsoid[] = 
{//  id, Ellipsoid name, Equatorial Radius, square of eccentricity	
	Ellipsoid( -1, "Placeholder", 0, 0),//placeholder only, To allow array indices to match id numbers
	Ellipsoid( 1, "Airy", 6377563, 0.00667054),
	Ellipsoid( 2, "Australian National", 6378160, 0.006694542),
	Ellipsoid( 3, "Bessel 1841", 6377397, 0.006674372),
	Ellipsoid( 4, "Bessel 1841 (Nambia) ", 6377484, 0.006674372),
	Ellipsoid( 5, "Clarke 1866", 6378206, 0.006768658),
	Ellipsoid( 6, "Clarke 1880", 6378249, 0.006803511),
	Ellipsoid( 7, "Everest", 6377276, 0.006637847),
	Ellipsoid( 8, "Fischer 1960 (Mercury) ", 6378166, 0.006693422),
	Ellipsoid( 9, "Fischer 1968", 6378150, 0.006693422),
	Ellipsoid( 10, "GRS 1967", 6378160, 0.006694605),
	Ellipsoid( 11, "GRS 1980", 6378137, 0.00669438),
	Ellipsoid( 12, "Helmert 1906", 6378200, 0.006693422),
	Ellipsoid( 13, "Hough", 6378270, 0.00672267),
	Ellipsoid( 14, "International", 6378388, 0.00672267),
	Ellipsoid( 15, "Krassovsky", 6378245, 0.006693422),
	Ellipsoid( 16, "Modified Airy", 6377340, 0.00667054),
	Ellipsoid( 17, "Modified Everest", 6377304, 0.006637847),
	Ellipsoid( 18, "Modified Fischer 1960", 6378155, 0.006693422),
	Ellipsoid( 19, "South American 1969", 6378160, 0.006694542),
	Ellipsoid( 20, "WGS 60", 6378165, 0.006693422),
	Ellipsoid( 21, "WGS 66", 6378145, 0.006694542),
	Ellipsoid( 22, "WGS-72", 6378135, 0.006694318),
	Ellipsoid( 23, "WGS-84", 6378137, 0.00669438)
};

#endif