PostGIS  2.5.2dev-r@@SVN_REVISION@@

◆ test_lwgeom_locate_along()

static void test_lwgeom_locate_along ( void  )
static

Definition at line 608 of file cu_measures.c.

References ASSERT_STRING_EQUAL, LW_PARSER_CHECK_NONE, lwfree(), lwgeom_free(), lwgeom_from_wkt(), lwgeom_locate_along(), lwgeom_to_wkt(), and WKT_ISO.

Referenced by measures_suite_setup().

609 {
610  LWGEOM *geom = NULL;
611  LWGEOM *out = NULL;
612  double measure = 105.0;
613  char *str;
614 
615  /* ST_Locatealong(ST_GeomFromText('MULTILINESTRING M ((1 2 3, 5 4 5), (50 50 1, 60 60 200))'), 105) */
616  geom = lwgeom_from_wkt("MULTILINESTRING M ((1 2 3, 5 4 5), (50 50 1, 60 60 200))", LW_PARSER_CHECK_NONE);
617  out = lwgeom_locate_along(geom, measure, 0.0);
618  str = lwgeom_to_wkt(out, WKT_ISO, 6, NULL);
619  lwgeom_free(geom);
620  lwgeom_free(out);
621  ASSERT_STRING_EQUAL(str, "MULTIPOINT M (55.226131 55.226131 105)");
622  lwfree(str);
623 
624  /* ST_Locatealong(ST_GeomFromText('MULTILINESTRING M ((1 2 3, 5 4 5), (50 50 1, 60 60 200))'), 105) */
625  geom = lwgeom_from_wkt("MULTILINESTRING M ((1 2 3, 3 4 2, 9 4 3), (1 2 3, 5 4 5), (50 50 1, 60 60 200))", LW_PARSER_CHECK_NONE);
626  out = lwgeom_locate_along(geom, measure, 0.0);
627  str = lwgeom_to_wkt(out, WKT_ISO, 6, NULL);
628  lwgeom_free(geom);
629  lwgeom_free(out);
630  ASSERT_STRING_EQUAL(str, "MULTIPOINT M (55.226131 55.226131 105)");
631  lwfree(str);
632 }
char * lwgeom_to_wkt(const LWGEOM *geom, uint8_t variant, int precision, size_t *size_out)
WKT emitter function.
Definition: lwout_wkt.c:676
void lwfree(void *mem)
Definition: lwutil.c:244
#define ASSERT_STRING_EQUAL(o, e)
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1144
LWGEOM * lwgeom_from_wkt(const char *wkt, const char check)
Definition: lwin_wkt.c:904
#define LW_PARSER_CHECK_NONE
Definition: liblwgeom.h:2005
#define WKT_ISO
Definition: liblwgeom.h:2075
LWGEOM * lwgeom_locate_along(const LWGEOM *lwin, double m, double offset)
Determine the location(s) along a measured line where m occurs and return as a multipoint.
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