moab::anonymous_namespace{NCWriteScrip.cpp} Namespace Reference

Functions
void	xyz_to_latlon_deg (double x, double y, double z, double &lat, double &lon)
	Convert Cartesian XYZ (on or near the unit sphere) to lat/lon in degrees. Normalizes internally so callers don't have to. Longitude is shifted to [0, 360). More...

Variables
constexpr double	kPi = 3.14159265358979323846
constexpr double	kRadToDegree = 180.0 / kPi

Function Documentation

xyz_to_latlon_deg()

void moab::anonymous_namespace{NCWriteScrip.cpp}::xyz_to_latlon_deg ( double  x, double  y, double  z, double &  lat, double &  lon  )

inline

Convert Cartesian XYZ (on or near the unit sphere) to lat/lon in degrees. Normalizes internally so callers don't have to. Longitude is shifted to [0, 360).

Definition at line 31 of file NCWriteScrip.cpp.

{
    const double r = std::sqrt( x * x + y * y + z * z );
    if( r < 1.0e-30 )
    {
        lat = 0.0;
        lon = 0.0;
        return;
    }
    lat = std::asin( z / r ) * kRadToDegree;
    lon = std::atan2( y, x ) * kRadToDegree;
    if( lon < 0.0 ) lon += 360.0;
}

References kRadToDegree.

Referenced by moab::NCWriteScrip::collect_mesh_info().

Variable Documentation

kPi

constexpr double moab::anonymous_namespace{NCWriteScrip.cpp}::kPi = 3.14159265358979323846

constexpr

Definition at line 25 of file NCWriteScrip.cpp.

kRadToDegree

constexpr double moab::anonymous_namespace{NCWriteScrip.cpp}::kRadToDegree = 180.0 / kPi

constexpr

Definition at line 26 of file NCWriteScrip.cpp.

Referenced by xyz_to_latlon_deg().