PostGIS  2.1.10dev-r@@SVN_REVISION@@
void cart2geog ( const POINT3D p,
GEOGRAPHIC_POINT g 
)

Convert cartesion coordinates on unit sphere to spherical coordinates.

Definition at line 365 of file lwgeodetic.c.

References GEOGRAPHIC_POINT::lat, GEOGRAPHIC_POINT::lon, POINT3D::x, POINT3D::y, and POINT3D::z.

Referenced by circ_center_cartesian(), circ_node_leaf_new(), clairaut_cartesian(), clairaut_geographic(), edge_distance_to_point(), gbox_centroid(), gbox_pt_outside(), and ptarray_segmentize_sphere().

366 {
367  g->lon = atan2(p->y, p->x);
368  g->lat = asin(p->z);
369 }
double y
Definition: liblwgeom.h:296
double x
Definition: liblwgeom.h:296
double z
Definition: liblwgeom.h:296

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