PostGIS  2.5.0dev-r@@SVN_REVISION@@
static void test_ptarray_locate_point ( void  )
static

Definition at line 217 of file cu_ptarray.c.

References getPoint4d(), lwgeom_as_lwline(), lwgeom_from_text(), lwline_free(), POINT4D::m, LWLINE::points, ptarray_locate_point(), POINT4D::x, and POINT4D::y.

Referenced by ptarray_suite_setup().

218 {
219  LWLINE *line;
220  double loc, dist;
221  POINT4D p, l;
222 
223  line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 3,20 4)"));
224 
225  p = getPoint4d(line->points, 0);
226  loc = ptarray_locate_point(line->points, &p, &dist, &l);
227  CU_ASSERT_EQUAL(loc, 0);
228  CU_ASSERT_EQUAL(dist, 0.0);
229 
230  p = getPoint4d(line->points, 1);
231  loc = ptarray_locate_point(line->points, &p, &dist, &l);
232  CU_ASSERT_EQUAL(loc, 1);
233  CU_ASSERT_EQUAL(dist, 0.0);
234 
235  p.x = 21; p.y = 4;
236  loc = ptarray_locate_point(line->points, &p, &dist, NULL);
237  CU_ASSERT_EQUAL(loc, 1);
238  CU_ASSERT_EQUAL(dist, 1.0);
239 
240  p.x = 0; p.y = 2;
241  loc = ptarray_locate_point(line->points, &p, &dist, &l);
242  CU_ASSERT_EQUAL(loc, 0);
243  CU_ASSERT_EQUAL(dist, 1.0);
244 
245  lwline_free(line);
246  line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0,20 0,40 0)"));
247 
248  p.x = 20; p.y = 0;
249  loc = ptarray_locate_point(line->points, &p, &dist, &l);
250  CU_ASSERT_EQUAL(loc, 0.5);
251  CU_ASSERT_EQUAL(dist, 0.0);
252 
253  lwline_free(line);
254  line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-40 0,0 0,20 0,40 0)"));
255 
256  p.x = 20; p.y = 0;
257  loc = ptarray_locate_point(line->points, &p, &dist, &l);
258  CU_ASSERT_EQUAL(loc, 0.75);
259  CU_ASSERT_EQUAL(dist, 0.0);
260 
261  lwline_free(line);
262  line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING M (0 0 0, 10 0 20)"));
263 
264  p.x = 5; p.y = 0;
265  loc = ptarray_locate_point(line->points, &p, &dist, &l);
266  CU_ASSERT_EQUAL(loc, 0.5);
267  CU_ASSERT_EQUAL(dist, 0.0);
268  CU_ASSERT_EQUAL(l.m, 10.0);
269 
270  lwline_free(line);
271 
272 }
double x
Definition: liblwgeom.h:351
double m
Definition: liblwgeom.h:351
void lwline_free(LWLINE *line)
Definition: lwline.c:76
double ptarray_locate_point(const POINTARRAY *pa, const POINT4D *pt, double *dist, POINT4D *p_located)
Definition: ptarray.c:1298
static LWGEOM * lwgeom_from_text(const char *str)
Definition: cu_ptarray.c:24
POINT4D getPoint4d(const POINTARRAY *pa, uint32_t n)
Definition: lwgeom_api.c:96
LWLINE * lwgeom_as_lwline(const LWGEOM *lwgeom)
Definition: lwgeom.c:169
double y
Definition: liblwgeom.h:351
POINTARRAY * points
Definition: liblwgeom.h:421

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