cu_filterm.c

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/**********************************************************************
 *
 * PostGIS - Spatial Types for PostgreSQL
 * http://postgis.net
 *
 * Copyright 2018 Nicklas Avén <nicklas.aven@jordogskog.no>
 *
 * 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 "liblwgeom_internal.h"
#include "cu_tester.h"
 
static void do_test_filterm(char *geom_txt,char *expected, double min, double max)
{
        LWGEOM *geom_in, *geom_out;
        char *out_txt;
        geom_in = lwgeom_from_wkt(geom_txt, LW_PARSER_CHECK_NONE);
        geom_out = lwgeom_filter_m(geom_in,min, max, 1);
        out_txt = lwgeom_to_wkt(geom_out, WKT_EXTENDED, 3, NULL);
        if(strcmp(expected, out_txt))
                printf("%s is not equal to %s\n", expected, out_txt);
        CU_ASSERT_STRING_EQUAL(expected, out_txt)
        lwfree(out_txt);
        lwgeom_free(geom_in);
        lwgeom_free(geom_out);
        return;
}
 
static void do_test_filterm_single_geometries(void)
{
        /*Point*/
        do_test_filterm("POINT(0 0 0 0)","POINT(0 0 0 0)", 0, 11);
        do_test_filterm("POINT(0 0 0 0)","POINT EMPTY", 1, 11);
        /*Line*/
        do_test_filterm("LINESTRING(0 0 0 0,1 1 0 2,2 2 0 5,3 1 0 3)","LINESTRING(1 1 0 2,3 1 0 3)",2,3);
        do_test_filterm("LINESTRING(0 0 0 0,1 1 0 2,2 2 0 5,3 1 0 3)","LINESTRING EMPTY",10, 11);
        /*Polygon*/
        do_test_filterm("POLYGON((0 0 0 0,1 1 0 2,5 5 0 5,3 1 0 3,0 0 0 0))","POLYGON((0 0 0 0,1 1 0 2,3 1 0 3,0 0 0 0))",0,4);
        do_test_filterm("POLYGON((0 0 0 0,1 1 0 2,5 5 0 5,3 1 0 3,0 0 0 0))","POLYGON EMPTY",10, 11);
        return;
}
 
static void do_test_filterm_collections(void)
{
        do_test_filterm("GEOMETRYCOLLECTION(POINT(1 1 1 1), LINESTRING(1 1 1 1, 1 2 1 4, 2 2 1 3), POLYGON((0 0 0 4,1 1 0 2,5 5 0 5,3 1 0 3,0 0 0 4)))","GEOMETRYCOLLECTION(POINT(1 1 1 1),LINESTRING(1 1 1 1,1 2 1 4,2 2 1 3),POLYGON((0 0 0 4,1 1 0 2,3 1 0 3,0 0 0 4)))",0,4);
        do_test_filterm("GEOMETRYCOLLECTION(POINT(1 1 1 1), LINESTRING(1 1 1 1, 1 2 1 4, 2 2 1 3), POLYGON((0 0 0 4,1 1 0 2,5 5 0 5,3 1 0 3,0 0 0 4)))","GEOMETRYCOLLECTION(LINESTRING(1 2 1 4,2 2 1 3),POLYGON((0 0 0 4,1 1 0 2,3 1 0 3,0 0 0 4)))",2,4);
        return;
}
 
void filterm_suite_setup(void);
void filterm_suite_setup(void)
{
        CU_pSuite suite = CU_add_suite("filterm",NULL,NULL);
        PG_ADD_TEST(suite, do_test_filterm_single_geometries);
        PG_ADD_TEST(suite, do_test_filterm_collections);
}