PostGIS  2.1.10dev-r@@SVN_REVISION@@
static CIRC_NODE* circ_node_leaf_point_new ( const POINTARRAY pa)

Return a point node (zero radius, referencing one point)

Definition at line 96 of file lwgeodetic_tree.c.

References circ_node::center, circ_node::edge_num, geographic_point_init(), circ_node::geom_type, getPoint_internal(), lwalloc(), circ_node::nodes, circ_node::num_nodes, circ_node::p1, circ_node::p2, POINTTYPE, circ_node::pt_outside, circ_node::radius, POINT2D::x, and POINT2D::y.

Referenced by circ_tree_new().

97 {
98  CIRC_NODE* tree = lwalloc(sizeof(CIRC_NODE));
99  tree->p1 = tree->p2 = (POINT2D*)getPoint_internal(pa, 0);
100  geographic_point_init(tree->p1->x, tree->p1->y, &(tree->center));
101  tree->radius = 0.0;
102  tree->nodes = NULL;
103  tree->num_nodes = 0;
104  tree->edge_num = 0;
105  tree->geom_type = POINTTYPE;
106  tree->pt_outside.x = 0.0;
107  tree->pt_outside.y = 0.0;
108  return tree;
109 }
Note that p1 and p2 are pointers into an independent POINTARRAY, do not free them.
POINT2D * p2
POINT2D * p1
double x
Definition: liblwgeom.h:284
uint8_t * getPoint_internal(const POINTARRAY *pa, int n)
Definition: ptarray.c:1645
double y
Definition: liblwgeom.h:284
void geographic_point_init(double lon, double lat, GEOGRAPHIC_POINT *g)
Initialize a geographic point.
Definition: lwgeodetic.c:157
LWTYPE numbers, used internally by PostGIS.
Definition: liblwgeom.h:60
POINT2D pt_outside
double radius
void * lwalloc(size_t size)
Definition: lwutil.c:175
struct circ_node ** nodes

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