PostGIS  3.7.0dev-r@@SVN_REVISION@@

◆ lwpoint_inside_circle()

int lwpoint_inside_circle ( const LWPOINT p,
double  cx,
double  cy,
double  rad 
)

Definition at line 690 of file lwgeom.c.

691 {
692  const POINT2D *pt;
693  POINT2D center;
694 
695  if ( ! p || ! p->point )
696  return LW_FALSE;
697 
698  pt = getPoint2d_cp(p->point, 0);
699 
700  center.x = cx;
701  center.y = cy;
702 
703  if ( distance2d_pt_pt(pt, &center) < rad )
704  return LW_TRUE;
705 
706  return LW_FALSE;
707 }
#define LW_FALSE
Definition: liblwgeom.h:94
double distance2d_pt_pt(const POINT2D *p1, const POINT2D *p2)
Definition: measures.c:2344
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:93
static const POINT2D * getPoint2d_cp(const POINTARRAY *pa, uint32_t n)
Returns a POINT2D pointer into the POINTARRAY serialized_ptlist, suitable for reading from.
Definition: lwinline.h:97
POINTARRAY * point
Definition: liblwgeom.h:471
double y
Definition: liblwgeom.h:390
double x
Definition: liblwgeom.h:390

References distance2d_pt_pt(), getPoint2d_cp(), LW_FALSE, LW_TRUE, LWPOINT::point, POINT2D::x, and POINT2D::y.

Referenced by LWGEOM_inside_circle_point().

Here is the call graph for this function:
Here is the caller graph for this function: