PostGIS  3.4.0dev-r@@SVN_REVISION@@

◆ lwpoint_project()

LWPOINT* lwpoint_project ( const LWPOINT *  lwpoint1,
double  distance,
double  azimuth 
)

Definition at line 290 of file lwpoint.c.

291 {
292  POINT4D p1, p2;
293  int srid = lwgeom_get_srid((const LWGEOM*)lwpoint1);
294  int hasz = lwgeom_has_z((const LWGEOM*)lwpoint1);
295  int hasm = lwgeom_has_m((const LWGEOM*)lwpoint1);
296  lwpoint_getPoint4d_p(lwpoint1, &p1);
297  lwpoint_getPoint4d_p(lwpoint1, &p2);
298  project_pt((POINT2D*)&p1, distance, azimuth, (POINT2D*)&p2);
299  return lwpoint_make(srid, hasz, hasm, &p2);
300 }
lwgeom_get_srid
int32_t lwgeom_get_srid(const LWGEOM *geom)
Return SRID number.
Definition: lwgeom.c:927
lwgeom_has_z
int lwgeom_has_z(const LWGEOM *geom)
Return LW_TRUE if geometry has Z ordinates.
Definition: lwgeom.c:934
lwgeom_has_m
int lwgeom_has_m(const LWGEOM *geom)
Return LW_TRUE if geometry has M ordinates.
Definition: lwgeom.c:941
project_pt
int project_pt(const POINT2D *P, double distance, double azimuth, POINT2D *R)
Azimuth is angle in radians from vertical axis.
Definition: measures.c:2475
lwpoint_getPoint4d_p
int lwpoint_getPoint4d_p(const LWPOINT *point, POINT4D *out)
Definition: lwpoint.c:57
lwpoint_make
LWPOINT * lwpoint_make(int32_t srid, int hasz, int hasm, const POINT4D *p)
Definition: lwpoint.c:206
distance
static double distance(double x1, double y1, double x2, double y2)
Definition: lwtree.c:1032

References distance(), lwgeom_get_srid(), lwgeom_has_m(), lwgeom_has_z(), lwpoint_getPoint4d_p(), lwpoint_make(), and project_pt().

Referenced by geometry_project_direction().

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