test_gbox_same_2d()

void test_gbox_same_2d

(

void

)

Definition at line 1077 of file cu_libgeom.c.

References LWGEOM::bbox, gbox_same_2d(), gbox_same_2d_float(), gserialized_from_lwgeom(), gserialized_read_gbox_p(), LW_PARSER_CHECK_NONE, lwfree(), lwgeom_add_bbox(), lwgeom_free(), lwgeom_from_wkt(), and test_gserialized_peek_gbox_p_no_box_when_empty().

Referenced by libgeom_suite_setup(), and test_lwgeom_scale().

{
        LWGEOM* g1 = lwgeom_from_wkt("LINESTRING(0 0, 1 1)", LW_PARSER_CHECK_NONE);
    LWGEOM* g2 = lwgeom_from_wkt("LINESTRING(0 0, 0 1, 1 1)", LW_PARSER_CHECK_NONE);
    LWGEOM* g3 = lwgeom_from_wkt("LINESTRING(0 0, 1 1.000000000001)", LW_PARSER_CHECK_NONE);

    lwgeom_add_bbox(g1);
    lwgeom_add_bbox(g2);
    lwgeom_add_bbox(g3);

    CU_ASSERT_TRUE(gbox_same_2d(g1->bbox, g2->bbox));
    CU_ASSERT_FALSE(gbox_same_2d(g1->bbox, g3->bbox));

    /* Serializing a GBOX with precise coordinates renders the boxes not strictly equal,
     * but still equal according to gbox_same_2d_float.
     */
    GSERIALIZED* s3 = gserialized_from_lwgeom(g3, NULL);
    GBOX s3box;
    gserialized_read_gbox_p(s3, &s3box);

    CU_ASSERT_FALSE(gbox_same_2d(g3->bbox, &s3box));
    CU_ASSERT_TRUE(gbox_same_2d_float(g3->bbox, &s3box));

    /* The serialized box equals itself by either the exact or closest-float compares */
    CU_ASSERT_TRUE(gbox_same_2d(&s3box, &s3box));
    CU_ASSERT_TRUE(gbox_same_2d_float(&s3box, &s3box));

    lwgeom_free(g1);
    lwgeom_free(g2);
    lwgeom_free(g3);
    lwfree(s3);
}

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