PostGIS  2.2.8dev-r@@SVN_REVISION@@

◆ test_tree_circ_distance_threshold()

static void test_tree_circ_distance_threshold ( void  )
static

Definition at line 330 of file cu_tree.c.

References circ_tree_distance_tree(), circ_tree_free(), LW_PARSER_CHECK_NONE, lwgeom_calculate_circ_tree(), lwgeom_distance_spheroid(), lwgeom_free(), lwgeom_from_hexwkb(), lwgeom_from_wkt(), s, spheroid_init(), tree_suite_setup(), WGS84_MAJOR_AXIS, and WGS84_MINOR_AXIS.

Referenced by tree_suite_setup().

331 {
332  SPHEROID s;
333  int i, j;
334  int step = 10;
335 
336  const char *txt_poly1 = "0103000020E6100000010000000B0000000AA2F068F47651C0F7893DEB70B8454007ABD4C6D57651C000FB650799B84540C21AA2645A7651C011C24BA84AB8454089A9A325E87751C03314EB5453B74540AF9ED96BF57751C0BF9818F889B74540E936A498B47751C0690C87D1C5B74540F5386204DC7751C02FCA658F1AB8454077B65F7B657751C012C586EE37B845408C1862C5977751C00F17E41674B84540D4012F57357751C0AD3BC67E99B845400AA2F068F47651C0F7893DEB70B84540";
337  const char *txt_poly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
338  const char *polys[2];
339  static int npolys = 2;
340 
341  polys[0] = txt_poly1;
342  polys[1] = txt_poly2;
343 
344  // spheroid_init(&s, WGS84_RADIUS, WGS84_RADIUS);
346 
347  for ( j = 0; j < npolys; j++ )
348  {
349  LWGEOM *lwg1 = lwgeom_from_hexwkb(txt_poly2, LW_PARSER_CHECK_NONE);
350  LWGEOM *lwg2 = lwgeom_from_wkt("POINT(-69.83262 43.43636)", LW_PARSER_CHECK_NONE);
351 
354 
355  for ( i = 50; i < 1500 / step; i++ )
356  {
357  double d1, d2;
358  double d = lwgeom_distance_spheroid(lwg1, lwg2, &s, 0);
359  double threshold = step * i;
360  d1 = circ_tree_distance_tree(c1, c2, &s, threshold);
361  d2 = lwgeom_distance_spheroid(lwg1, lwg2, &s, threshold);
362  if (threshold > d && (d1 > threshold || d2 > threshold))
363  {
364  printf("polygon #%d\n"
365  "threshold = %g\n"
366  "true distance = %g\n"
367  "circ_tree_distance = %g\n"
368  "lwgeom_distance_spheroid = %g\n", j, threshold, d, d1, d2);
369  CU_FAIL_FATAL();
370  }
371  }
372 
373  circ_tree_free(c1);
374  circ_tree_free(c2);
375  lwgeom_free(lwg1);
376  lwgeom_free(lwg2);
377  }
378 
379 }
Note that p1 and p2 are pointers into an independent POINTARRAY, do not free them.
void spheroid_init(SPHEROID *s, double a, double b)
Initialize a spheroid object for use in geodetic functions.
Definition: lwspheroid.c:25
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1050
double circ_tree_distance_tree(const CIRC_NODE *n1, const CIRC_NODE *n2, const SPHEROID *spheroid, double threshold)
#define WGS84_MINOR_AXIS
Definition: liblwgeom.h:115
LWGEOM * lwgeom_from_wkt(const char *wkt, const char check)
Definition: lwin_wkt.c:890
CIRC_NODE * lwgeom_calculate_circ_tree(const LWGEOM *lwgeom)
#define LW_PARSER_CHECK_NONE
Definition: liblwgeom.h:1869
char * s
Definition: cu_in_wkt.c:23
LWGEOM * lwgeom_from_hexwkb(const char *hexwkb, const char check)
Definition: lwin_wkb.c:779
void circ_tree_free(CIRC_NODE *node)
Recurse from top of node tree and free all children.
#define WGS84_MAJOR_AXIS
Definition: liblwgeom.h:113
double lwgeom_distance_spheroid(const LWGEOM *lwgeom1, const LWGEOM *lwgeom2, const SPHEROID *spheroid, double tolerance)
Calculate the geodetic distance from lwgeom1 to lwgeom2 on the spheroid.
Definition: lwgeodetic.c:2081
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