/*
 * STRUCT: SRM_M_3D_COORD
 *
 *   A coordinate within the Mercator (M) 3D Spatial
 *   Reference Frame (SRF).
 *
 *   Only used within the SE_COORD_3D union.  Parallels the definition
 *   of the fields for the <M Location 3D> class.
 */
typedef struct
{
SE_FLOAT64 x; (notes)
SE_FLOAT64 y; (notes)
SE_FLOAT64 z; (notes)
} SRM_M_3D_COORD;

Field Notes

x

 in meters; positive Eastward

y

 in meters; positive Northward

z

 Elevation or height; positive along xy surface normal
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