test_lwgeom_clip_by_rect()

static void test_lwgeom_clip_by_rect ( void  )

static

Definition at line 19 of file cu_clip_by_rect.c.

References clip_by_rect_suite_setup(), cu_error_msg_reset(), LW_PARSER_CHECK_NONE, lwfree(), lwgeom_clip_by_rect(), lwgeom_free(), lwgeom_from_wkt(), lwgeom_is_empty(), and lwgeom_to_ewkt().

Referenced by clip_by_rect_suite_setup().

{
#if POSTGIS_GEOS_VERSION >= 35
        LWGEOM *in, *out;
        const char *wkt;
        char *tmp;

        /* Because i don't trust that much prior tests...  ;) */
        cu_error_msg_reset();

        wkt = "LINESTRING(0 0, 5 5, 10 0)";
        in = lwgeom_from_wkt(wkt, LW_PARSER_CHECK_NONE);
        out = lwgeom_clip_by_rect(in, 5, 0, 10, 10);
        tmp = lwgeom_to_ewkt(out);
        /* printf("%s\n", tmp); */
        CU_ASSERT_STRING_EQUAL("LINESTRING(5 5,10 0)", tmp)
        lwfree(tmp); lwgeom_free(out); lwgeom_free(in);

        wkt = "LINESTRING EMPTY";
        in = lwgeom_from_wkt(wkt, LW_PARSER_CHECK_NONE);
        out = lwgeom_clip_by_rect(in, 5, 0, 10, 10);
        tmp = lwgeom_to_ewkt(out);
        /* printf("%s\n", tmp); */
        CU_ASSERT_STRING_EQUAL(wkt, tmp)
        lwfree(tmp); lwgeom_free(out); lwgeom_free(in);

        wkt = "MULTIPOINT EMPTY";
        in = lwgeom_from_wkt(wkt, LW_PARSER_CHECK_NONE);
        out = lwgeom_clip_by_rect(in, 5, 0, 10, 10);
        tmp = lwgeom_to_ewkt(out);
        /* printf("%s\n", tmp); */
        CU_ASSERT_STRING_EQUAL(wkt, tmp)
        lwfree(tmp); lwgeom_free(out); lwgeom_free(in);

        wkt = "MULTIPOINT(0 0, 6 6, 7 5)";
        in = lwgeom_from_wkt(wkt, LW_PARSER_CHECK_NONE);
        out = lwgeom_clip_by_rect(in, 5, 0, 10, 10);
        tmp = lwgeom_to_ewkt(out);
        /* printf("%s\n", tmp); */
        CU_ASSERT_STRING_EQUAL("MULTIPOINT(6 6,7 5)", tmp)
        lwfree(tmp); lwgeom_free(out); lwgeom_free(in);

        /* Disjoint polygon */
        wkt = "POLYGON((311017 4773762,311016 4773749,311006 4773744,310990 4773748,310980 4773758,310985 4773771,311003 4773776,311017 4773762))";
        in = lwgeom_from_wkt(wkt, LW_PARSER_CHECK_NONE);
        out = lwgeom_clip_by_rect(in, -80, -80, 80, 80);
        //tmp = lwgeom_to_ewkt(out); printf("%s\n", tmp); lwfree(tmp);
        CU_ASSERT(lwgeom_is_empty(out));
        lwgeom_free(out); lwgeom_free(in);

#endif /* POSTGIS_GEOS_VERSION >= 35 */
}

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