caiyu/gps-sdr-sim
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Use #defines instead of WGS84 magic numbers occurring repeatedly

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Harald Welte 2015-08-21 00:10:52 +02:00
parent 00202f91dd
commit f1520f0cce
1 changed files with 7 additions and 4 deletions
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gpssim.c
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@ -54,6 +54,9 @@ typedef int bool;
#define OMEGA_EARTH 7.2921151467e-5 #define OMEGA_EARTH 7.2921151467e-5
#define PI 3.1415926535898 #define PI 3.1415926535898
#define WGS84_RADIUS 6378137.0
#define WGS84_ECCENTRICITY 0.0818191908426
#define R2D 57.2957795131 #define R2D 57.2957795131
#define SPEED_OF_LIGHT 2.99792458e8 #define SPEED_OF_LIGHT 2.99792458e8
@ -309,8 +312,8 @@ void xyz2llh(const double *xyz, double *llh)
double x,y,z; double x,y,z;
double rho2,dz,zdz,nh,slat,n,dz_new; double rho2,dz,zdz,nh,slat,n,dz_new;
a = 6378137.0; a = WGS84_RADIUS;
e = 0.0818191908426; e = WGS84_ECCENTRICITY;
eps = 1.0e-3; eps = 1.0e-3;
e2 = e*e; e2 = e*e;
@ -360,8 +363,8 @@ void llh2xyz(const const double *llh, double *xyz)
double d,nph; double d,nph;
double tmp; double tmp;
a = 6378137.0; a = WGS84_RADIUS;
e = 0.0818191908426; e = WGS84_ECCENTRICITY;
e2 = e*e; e2 = e*e;
clat = cos(llh[0]); clat = cos(llh[0]);