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/**********************************************************************
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.net
*
* Copyright (C) 2021 Sandro Santilli <strk@kbt.io>
* Copyright (C) 2021 Aliaksandr Kalinik <kalenik.aliaksandr@gmail.com>
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU General Public Licence. See the COPYING file.
*
**********************************************************************/
#include "CUnit/Basic.h"
#include "cu_tester.h"
#include "liblwgeom.h"
#include "liblwgeom_internal.h"
#define BOUNDARY_TEST(wkt_in, wkt_exp) \
do \
{ \
LWGEOM *gin, *gout, *gexp; \
cu_error_msg_reset(); \
gin = lwgeom_from_wkt(wkt_in, LW_PARSER_CHECK_NONE); \
CU_ASSERT_PTR_NOT_NULL_FATAL(gin); \
gexp = lwgeom_from_wkt(wkt_exp, LW_PARSER_CHECK_NONE); \
CU_ASSERT_PTR_NOT_NULL_FATAL(gexp); \
gout = lwgeom_boundary(gin); \
CU_ASSERT_PTR_NOT_NULL_FATAL(gout); \
ASSERT_NORMALIZED_GEOM_SAME(gout, gexp); \
lwgeom_free(gout); \
lwgeom_free(gexp); \
lwgeom_free(gin); \
} while (0)
static void
boundary_point(void)
{
BOUNDARY_TEST(
"POINT EMPTY",
"POINT EMPTY"
);
BOUNDARY_TEST(
"POINT(0 0)",
"POINT EMPTY"
);
BOUNDARY_TEST(
"MULTIPOINT EMPTY",
"MULTIPOINT EMPTY" /* debatable return type */
);
BOUNDARY_TEST(
"MULTIPOINT(0 0,10 0)",
"MULTIPOINT EMPTY" /* debatable return type */
);
}
static void
boundary_line(void)
{
BOUNDARY_TEST(
"LINESTRING EMPTY",
"MULTIPOINT EMPTY"
);
BOUNDARY_TEST(
"CIRCULARSTRING EMPTY",
"MULTIPOINT EMPTY"
);
BOUNDARY_TEST(
"LINESTRING(0 0, 5 5, 10 0, 0 0)",
"MULTIPOINT EMPTY"
);
BOUNDARY_TEST(
"CIRCULARSTRING(0 0, 4 0, 4 4, 0 4, 0 0)",
"MULTIPOINT EMPTY"
);
BOUNDARY_TEST(
"LINESTRING(0 0, 5 0, 10 0)",
"MULTIPOINT(0 0, 10 0)"
);
BOUNDARY_TEST(
"MULTILINESTRING((0 0, 5 0, 10 0),(20 5, 20 6, 20 10))",
"MULTIPOINT(0 0, 10 0, 20 5, 20 10)"
);
BOUNDARY_TEST(
"MULTICURVE((1 1 1,0 0 0.5, -1 1 1),(1 1 0.5,0 0 0.5, -1 1 0.5, 1 1 0.5))",
"MULTIPOINT(1 1 1,-1 1 1)"
);
}
static void
boundary_polygon(void)
{
BOUNDARY_TEST(
"POLYGON EMPTY",
"MULTILINESTRING EMPTY"
);
BOUNDARY_TEST(
"POLYGON((0 0, 5 5, 10 0, 0 0))",
"LINESTRING(0 0, 5 5, 10 0, 0 0)"
);
BOUNDARY_TEST(
"POLYGON((0 0, 5 5, 10 0, 0 0),(3 1,7 1,5 2,3 1))",
"MULTILINESTRING((0 0, 5 5, 10 0, 0 0),(3 1,7 1,5 2,3 1))"
);
/* See https://trac.osgeo.org/postgis/ticket/4961 */
BOUNDARY_TEST(
"MULTIPOLYGON(((0 0, 5 5, 10 0, 0 0),(3 1,7 1,5 2,3 1)),((20 0,20 5,25 5,20 0)))",
"MULTILINESTRING((0 0, 5 5, 10 0, 0 0),(3 1,7 1,5 2,3 1),(20 0,20 5,25 5,20 0))"
);
BOUNDARY_TEST(
"CURVEPOLYGON(CIRCULARSTRING(0 0, 4 0, 4 4, 0 4, 0 0))",
"MULTICURVE(CIRCULARSTRING(0 0, 4 0, 4 4, 0 4, 0 0))"
);
BOUNDARY_TEST(
"CURVEPOLYGON(CIRCULARSTRING(0 0, 4 0, 4 4, 0 4, 0 0),(1 1, 3 3, 3 1, 1 1))",
"MULTICURVE(CIRCULARSTRING(0 0, 4 0, 4 4, 0 4, 0 0),(1 1, 3 3, 3 1, 1 1))"
);
}
static void
boundary_triangle(void)
{
BOUNDARY_TEST(
"TRIANGLE EMPTY",
"LINESTRING EMPTY"
);
BOUNDARY_TEST(
"TRIANGLE((1 1, 0 0, -1 1, 1 1))",
"LINESTRING(1 1, 0 0, -1 1, 1 1)"
);
}
static void
boundary_tin(void)
{
BOUNDARY_TEST(
"TIN EMPTY",
"GEOMETRYCOLLECTION EMPTY"
);
BOUNDARY_TEST(
"TIN(((0 0,0 -1,-1 1,0 0)))",
"LINESTRING(0 0,0 -1,-1 1,0 0)"
);
BOUNDARY_TEST(
"TIN(((0 0,0 -1,-1 1,0 0)),((0 0,1 0,0 -1,0 0)))",
"MULTILINESTRING((0 0,0 -1,-1 1,0 0),(0 0,1 0,0 -1,0 0))"
);
}
static void
boundary_collection(void)
{
BOUNDARY_TEST(
"GEOMETRYCOLLECTION EMPTY",
"GEOMETRYCOLLECTION EMPTY"
);
/* See https://trac.osgeo.org/postgis/ticket/4956 */
BOUNDARY_TEST(
"GEOMETRYCOLLECTION(POLYGON((0 0,0 10,10 10,10 0,0 0),(2 2,4 2,4 4,2 4,2 2)),POLYGON((2 2,2 4,4 4,4 2,2 2)))",
"MULTILINESTRING((0 0,0 10,10 10,10 0,0 0),(2 2,4 2,4 4,2 4,2 2),(2 2,2 4,4 4,4 2,2 2))"
);
BOUNDARY_TEST(
"GEOMETRYCOLLECTION(TIN(((0 0,0 -1,-1 1,0 0)),((0 0,1 0,0 -1,0 0))),TIN(((10 10,10 20,20 20,10 10))))",
"MULTILINESTRING((0 0,0 -1,-1 1,0 0),(0 0,1 0,0 -1,0 0),(10 10,10 20,20 20,10 10))"
);
BOUNDARY_TEST(
"GEOMETRYCOLLECTION(TRIANGLE((1 1, 0 0, -1 1, 1 1)))",
"LINESTRING(1 1, 0 0, -1 1, 1 1)"
);
BOUNDARY_TEST(
"GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(TRIANGLE((0 0,0 -1,-1 1,0 0)),TRIANGLE((0 0,1 0,0 -1,0 0))),MULTILINESTRING((0 0, 5 0, 10 0),(20 5, 20 6, 20 10)))",
"GEOMETRYCOLLECTION(MULTILINESTRING((0 0,0 -1,1 0,0 0),(0 0,-1 1,0 -1,0 0)),MULTIPOINT(20 10,20 5,10 0,0 0))"
);
BOUNDARY_TEST(
"GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(POINT(0 0)),POINT(1 1),MULTIPOINT(2 2,3 3))",
"GEOMETRYCOLLECTION EMPTY"
);
}
void boundary_suite_setup(void);
void
boundary_suite_setup(void)
{
CU_pSuite suite = CU_add_suite("boundary", NULL, NULL);
PG_ADD_TEST(suite, boundary_point);
PG_ADD_TEST(suite, boundary_line);
PG_ADD_TEST(suite, boundary_polygon);
PG_ADD_TEST(suite, boundary_triangle);
PG_ADD_TEST(suite, boundary_tin);
PG_ADD_TEST(suite, boundary_collection);
}
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