test_lwgeom_remove_repeated_points()

static void test_lwgeom_remove_repeated_points ( void  )

static

Definition at line 1162 of file cu_algorithm.c.

{
        LWGEOM *g, *gn;
        char *ewkt;
        char *ewkt_exp;
        int modified = LW_FALSE;
 
        g = lwgeom_from_wkt("LINESTRING(0 0,1 1,1 1,1 1,1.707 1.707)", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 0.001);
        ASSERT_INT_EQUAL(modified, LW_TRUE);
        ewkt = lwgeom_to_ewkt(g);
        ASSERT_STRING_EQUAL(ewkt, "LINESTRING(0 0,1 1,1.707 1.707)");
        lwgeom_free(g);
        lwfree(ewkt);
 
        g = lwgeom_from_wkt("MULTIPOINT(0 0, 10 0, 10 10, 10 10, 0 10, 0 10, 0 10, 0 0, 0 0, 0 0, 5 5, 0 0, 5 5)", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 1);
        ASSERT_INT_EQUAL(modified, LW_TRUE);
        gn = lwgeom_normalize(g);
        ewkt = lwgeom_to_ewkt(gn);
        ASSERT_STRING_EQUAL(ewkt, "MULTIPOINT(10 10,10 0,5 5,0 10,0 0)");
        lwgeom_free(g);
        lwgeom_free(gn);
        lwfree(ewkt);
 
        g = lwgeom_from_wkt("LINESTRING(1612830.15445 4841287.12672,1612830.15824 4841287.12674,1612829.98813 4841274.56198)", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 0.01);
        ASSERT_INT_EQUAL(modified, LW_TRUE);
        ewkt = lwgeom_to_ewkt(g);
        ASSERT_STRING_EQUAL(ewkt, "LINESTRING(1612830.15445 4841287.12672,1612829.98813 4841274.56198)");
        lwgeom_free(g);
        lwfree(ewkt);
 
        /* remove points */
        g = lwgeom_from_wkt("MULTIPOINT(0 0,10 0,10 10,10 10,0 10,0 10,0 10,0 0,0 0,0 0,5 5,5 5,5 8,8 8,8 8,8 8,8 5,8 5,5 5,5 5,5 5,5 5,5 5,50 50,50 50,50 50,50 60,50 60,50 60,60 60,60 50,60 50,50 50,55 55,55 58,58 58,58 55,58 55,55 55)", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 1);
        ASSERT_INT_EQUAL(modified, LW_TRUE);
        gn = lwgeom_normalize(g);
        ewkt = lwgeom_to_ewkt(gn);
        lwgeom_free(g);
        lwgeom_free(gn);
        /* build expected and normalize */
        g = lwgeom_from_wkt("MULTIPOINT(0 0,0 10,5 5,5 8,8 5,8 8,10 0,10 10,50 50,50 60,55 55,55 58,58 55,58 58,60 50,60 60)", LW_PARSER_CHECK_NONE);
        gn = lwgeom_normalize(g);
        ewkt_exp = lwgeom_to_ewkt(gn);
        ASSERT_STRING_EQUAL(ewkt, ewkt_exp);
        lwgeom_free(g);
        lwgeom_free(gn);
        lwfree(ewkt);
        lwfree(ewkt_exp);
 
        g = lwgeom_from_wkt("POLYGON((0 0, 0 1, 1 1, 1 0, 0 0))", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 10000);
        ASSERT_INT_EQUAL(modified, LW_TRUE);
        ewkt = lwgeom_to_ewkt(g);
        ASSERT_STRING_EQUAL(ewkt, "POLYGON((0 0,1 1,1 0,0 0))");
        lwgeom_free(g);
        lwfree(ewkt);
 
        // Test the return value (modified or not)
        g = lwgeom_from_wkt("POINT(0 0)", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 10000);
        ASSERT_INT_EQUAL(modified, LW_FALSE);
        lwgeom_free(g);
 
        g = lwgeom_from_wkt("TRIANGLE((0 0, 5 0, 3 3, 0 0))", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 10000);
        ASSERT_INT_EQUAL(modified, LW_FALSE);
        lwgeom_free(g);
 
        g = lwgeom_from_wkt("POLYGON((0 0,0 1,1 1,1 0,0 0))", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 0.1);
        ASSERT_INT_EQUAL(modified, LW_FALSE);
        ewkt = lwgeom_to_ewkt(g);
        ASSERT_STRING_EQUAL(ewkt, "POLYGON((0 0,0 1,1 1,1 0,0 0))");
        lwgeom_free(g);
        lwfree(ewkt);
 
        g = lwgeom_from_wkt("POLYGON((0 0,0 1,1 1,1 0,0 0), (0.4 0.4, 0.4 0.4, 0.4 0.5, 0.5 0.5, 0.5 0.4, 0.4 0.4))",
                            LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 0.1);
        ASSERT_INT_EQUAL(modified, LW_TRUE);
        ewkt = lwgeom_to_ewkt(g);
        ASSERT_STRING_EQUAL(ewkt, "POLYGON((0 0,0 1,1 1,1 0,0 0),(0.4 0.4,0.5 0.5,0.5 0.4,0.4 0.4))");
        lwgeom_free(g);
        lwfree(ewkt);
 
        g = lwgeom_from_wkt("GEOMETRYCOLLECTION(POINT(2 0),POLYGON((0 0,1 0,1 1,0 1,0 0)))", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 0.1);
        ASSERT_INT_EQUAL(modified, LW_FALSE);
        ewkt = lwgeom_to_ewkt(g);
        ASSERT_STRING_EQUAL(ewkt, "GEOMETRYCOLLECTION(POINT(2 0),POLYGON((0 0,1 0,1 1,0 1,0 0)))");
        lwgeom_free(g);
        lwfree(ewkt);
 
        g = lwgeom_from_wkt("GEOMETRYCOLLECTION(POINT(2 0),POLYGON((0 0, 0 1, 1 1, 1 0, 0 0)))", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 10000);
        ASSERT_INT_EQUAL(modified, LW_TRUE);
        ewkt = lwgeom_to_ewkt(g);
        ASSERT_STRING_EQUAL(ewkt, "GEOMETRYCOLLECTION(POINT(2 0),POLYGON((0 0,1 1,1 0,0 0)))");
        lwgeom_free(g);
        lwfree(ewkt);
 
        g = lwgeom_from_wkt("GEOMETRYCOLLECTION(POLYGON((0 0, 0 1, 1 1, 1 0, 0 0)),POINT(2 0))", LW_PARSER_CHECK_NONE);
        modified = lwgeom_remove_repeated_points_in_place(g, 10000);
        ASSERT_INT_EQUAL(modified, LW_TRUE);
        ewkt = lwgeom_to_ewkt(g);
        ASSERT_STRING_EQUAL(ewkt, "GEOMETRYCOLLECTION(POLYGON((0 0,1 1,1 0,0 0)),POINT(2 0))");
        lwgeom_free(g);
        lwfree(ewkt);
}

References ASSERT_INT_EQUAL, ASSERT_STRING_EQUAL, LW_FALSE, LW_PARSER_CHECK_NONE, LW_TRUE, lwfree(), lwgeom_free(), lwgeom_from_wkt(), lwgeom_normalize(), lwgeom_remove_repeated_points_in_place(), and lwgeom_to_ewkt().

Referenced by algorithms_suite_setup().

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