/*
 * STRUCT: SRM_GC_3D_COORD
 *
 *   A coordinate within the Geocentric (GC) 3D Spatial Reference Frame (SRF).
 *
 *   Only used within the SE_COORD_3D union.  Parallels the definition of the
 *   fields for the <GC Location 3D> class.
 */
typedef struct
{
SE_FLOAT64 x; (notes)
SE_FLOAT64 y; (notes)
SE_FLOAT64 z; (notes)
} SRM_GC_3D_COORD;

Field Notes

x

 meters; positive towards Prime Meridian
    in equatorial plane; origin at mass-center

y

 meters; positive towards 90 degrees east
    of Prime Meridian in equatorial plane;
    origin at mass-center

z

 meters; positive northwards along rotational axis
    origin at mass-center
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