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/**********************************************************************
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.net
*
* Copyright 2011 Sandro Santilli <strk@kbt.io>
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "CUnit/Basic.h"
#include "lwgeom_geos.h"
#include "cu_tester.h"
#include "liblwgeom_internal.h"
static void test_geos_noop(void)
{
int i;
char *ewkt[] =
{
"POINT(0 0.2)",
"LINESTRING(-1 -1,-1 2.5,2 2,2 -1)",
"MULTIPOINT(0.9 0.9,0.9 0.9,0.9 0.9,0.9 0.9,0.9 0.9,0.9 0.9)",
"SRID=1;MULTILINESTRING((-1 -1,-1 2.5,2 2,2 -1),(-1 -1,-1 2.5,2 2,2 -1),(-1 -1,-1 2.5,2 2,2 -1),(-1 -1,-1 2.5,2 2,2 -1))",
"SRID=1;MULTILINESTRING((-1 -1,-1 2.5,2 2,2 -1),(-1 -1,-1 2.5,2 2,2 -1),(-1 -1,-1 2.5,2 2,2 -1),(-1 -1,-1 2.5,2 2,2 -1))",
"POLYGON((-1 -1,-1 2.5,2 2,2 -1,-1 -1),(0 0,0 1,1 1,1 0,0 0))",
"SRID=4326;POLYGON((-1 -1,-1 2.5,2 2,2 -1,-1 -1),(0 0,0 1,1 1,1 0,0 0))",
"SRID=4326;POLYGON((-1 -1,-1 2.5,2 2,2 -1,-1 -1),(0 0,0 1,1 1,1 0,0 0),(-0.5 -0.5,-0.5 -0.4,-0.4 -0.4,-0.4 -0.5,-0.5 -0.5))",
"SRID=100000;POLYGON((-1 -1 3,-1 2.5 3,2 2 3,2 -1 3,-1 -1 3),(0 0 3,0 1 3,1 1 3,1 0 3,0 0 3),(-0.5 -0.5 3,-0.5 -0.4 3,-0.4 -0.4 3,-0.4 -0.5 3,-0.5 -0.5 3))",
"SRID=4326;MULTIPOLYGON(((-1 -1,-1 2.5,2 2,2 -1,-1 -1),(0 0,0 1,1 1,1 0,0 0),(-0.5 -0.5,-0.5 -0.4,-0.4 -0.4,-0.4 -0.5,-0.5 -0.5)),((-1 -1,-1 2.5,2 2,2 -1,-1 -1),(0 0,0 1,1 1,1 0,0 0),(-0.5 -0.5,-0.5 -0.4,-0.4 -0.4,-0.4 -0.5,-0.5 -0.5)))",
"SRID=4326;GEOMETRYCOLLECTION(POINT(0 1),POLYGON((-1 -1,-1 2.5,2 2,2 -1,-1 -1),(0 0,0 1,1 1,1 0,0 0)),MULTIPOLYGON(((-1 -1,-1 2.5,2 2,2 -1,-1 -1),(0 0,0 1,1 1,1 0,0 0),(-0.5 -0.5,-0.5 -0.4,-0.4 -0.4,-0.4 -0.5,-0.5 -0.5))))",
};
for ( i = 0; i < (sizeof ewkt/sizeof(char *)); i++ )
{
LWGEOM *geom_in, *geom_out;
char *in_ewkt;
char *out_ewkt;
in_ewkt = ewkt[i];
geom_in = lwgeom_from_wkt(in_ewkt, LW_PARSER_CHECK_NONE);
geom_out = lwgeom_geos_noop(geom_in);
if ( ! geom_out ) {
fprintf(stderr, "\nNull return from lwgeom_geos_noop with wkt: %s\n", in_ewkt);
lwgeom_free(geom_in);
continue;
}
out_ewkt = lwgeom_to_ewkt(geom_out);
if (strcmp(in_ewkt, out_ewkt))
fprintf(stderr, "\nExp: %s\nObt: %s\n", in_ewkt, out_ewkt);
CU_ASSERT_STRING_EQUAL(in_ewkt, out_ewkt);
lwfree(out_ewkt);
lwgeom_free(geom_out);
lwgeom_free(geom_in);
}
}
static void test_geos_linemerge(void)
{
char *ewkt;
char *out_ewkt;
LWGEOM *geom1;
LWGEOM *geom2;
ewkt = "MULTILINESTRING((0 0, 0 100),(0 -5, 0 0))";
geom1 = lwgeom_from_wkt(ewkt, LW_PARSER_CHECK_NONE);
geom2 = lwgeom_linemerge(geom1);
out_ewkt = lwgeom_to_ewkt((LWGEOM*)geom2);
ASSERT_STRING_EQUAL(out_ewkt, "LINESTRING(0 -5,0 0,0 100)");
lwfree(out_ewkt);
lwgeom_free(geom1);
lwgeom_free(geom2);
ewkt = "MULTILINESTRING EMPTY";
geom1 = lwgeom_from_wkt(ewkt, LW_PARSER_CHECK_NONE);
geom2 = lwgeom_linemerge(geom1);
out_ewkt = lwgeom_to_ewkt((LWGEOM*)geom2);
ASSERT_STRING_EQUAL(out_ewkt, "GEOMETRYCOLLECTION EMPTY");
lwfree(out_ewkt);
lwgeom_free(geom1);
lwgeom_free(geom2);
}
static void test_geos_subdivide(void)
{
#if POSTGIS_GEOS_VERSION < 35
// printf("%d\n", POSTGIS_GEOS_VERSION);
return;
#else
char *ewkt = "MULTILINESTRING((0 0, 0 100))";
char *out_ewkt;
LWGEOM *geom1 = lwgeom_from_wkt(ewkt, LW_PARSER_CHECK_NONE);
LWGEOM *geom2 = lwgeom_segmentize2d(geom1, 1.0);
LWCOLLECTION *geom3 = lwgeom_subdivide(geom2, 80);
out_ewkt = lwgeom_to_ewkt((LWGEOM*)geom3);
// printf("\n--------\n%s\n--------\n", out_ewkt);
CU_ASSERT_EQUAL(2, geom3->ngeoms);
lwfree(out_ewkt);
lwcollection_free(geom3);
geom3 = lwgeom_subdivide(geom2, 20);
out_ewkt = lwgeom_to_ewkt((LWGEOM*)geom3);
// printf("\n--------\n%s\n--------\n", out_ewkt);
CU_ASSERT_EQUAL(8, geom3->ngeoms);
lwfree(out_ewkt);
lwcollection_free(geom3);
lwgeom_free(geom2);
lwgeom_free(geom1);
#endif
}
/*
** Used by test harness to register the tests in this file.
*/
void geos_suite_setup(void);
void geos_suite_setup(void)
{
CU_pSuite suite = CU_add_suite("GEOS", NULL, NULL);
PG_ADD_TEST(suite, test_geos_noop);
PG_ADD_TEST(suite, test_geos_subdivide);
PG_ADD_TEST(suite, test_geos_linemerge);
}
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