geometry/test/multi/algorithms/multi_disjoint.cpp
2012-05-27 14:47:19 +00:00

118 lines
3.5 KiB
C++

// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2012 Barend Gehrels, Amsterdam, the Netherlands.
// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <iostream>
#include <string>
#include <geometry_test_common.hpp>
#include <boost/geometry/algorithms/disjoint.hpp>
#include <boost/geometry/io/wkt/read.hpp>
#include <boost/geometry/multi/io/wkt/read.hpp>
#include <boost/geometry/strategies/strategies.hpp>
#include <boost/geometry/multi/algorithms/detail/sections/range_by_section.hpp>
#include <boost/geometry/multi/algorithms/detail/sections/sectionalize.hpp>
#include <boost/geometry/multi/algorithms/detail/point_on_border.hpp>
#include <boost/geometry/multi/algorithms/within.hpp>
#include <boost/geometry/multi/core/closure.hpp>
#include <boost/geometry/multi/core/geometry_id.hpp>
#include <boost/geometry/multi/core/ring_type.hpp>
#include <boost/geometry/multi/views/detail/range_type.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/multi/geometries/multi_polygon.hpp>
#include <test_common/test_point.hpp>
#include <algorithms/test_relate.hpp>
template <typename G1, typename G2>
void test_disjoint(std::string const& id,
std::string const& wkt1,
std::string const& wkt2, bool expected)
{
G1 g1;
bg::read_wkt(wkt1, g1);
G2 g2;
bg::read_wkt(wkt2, g2);
bool detected = bg::disjoint(g1, g2);
BOOST_CHECK_MESSAGE(detected == expected,
"disjoint: " << id
<< " -> Expected: " << expected
<< " detected: " << detected);
}
template <typename P>
void test_all()
{
typedef bg::model::polygon<P> polygon;
typedef bg::model::multi_polygon<polygon> mp;
test_disjoint<mp, mp>("",
"MULTIPOLYGON(((0 0,0 10,10 10,10 0,0 0)))",
"MULTIPOLYGON(((0 0,0 10,10 10,10 0,0 0)))",
false);
// True disjoint
test_disjoint<mp, mp>("",
"MULTIPOLYGON(((0 0,0 4,4 4,4 0,0 0)))",
"MULTIPOLYGON(((6 6,6 10,10 10,10 6,6 6)))",
true);
// Touch -> not disjoint
test_disjoint<mp, mp>("",
"MULTIPOLYGON(((0 0,0 5,5 5,5 0,0 0)))",
"MULTIPOLYGON(((5 5,5 10,10 10,10 5,5 5)))",
false);
// Not disjoint but no IP's
test_disjoint<mp, mp>("no_ips",
"MULTIPOLYGON(((2 2,2 8,8 8,8 2,2 2)),((20 0,20 10,30 10,30 0,20 0)))",
"MULTIPOLYGON(((0 0,0 10,10 10,10 0,0 0)),((22 2,28 2,28 8,22 8,22 2)))",
false);
// Not disjoint and not inside each other (in first ring) but wrapped (in second rings)
// TODO: fix this case
//test_disjoint<mp, mp>("no_ips2",
// "MULTIPOLYGON(((2 2,2 8,8 8,8 2,2 2)),((20 0,20 10,30 10,30 0,20 0)))",
// "MULTIPOLYGON(((2 12,2 18,8 18,8 12,2 12)),((22 2,28 2,28 8,22 8,22 2)))",
// false);
}
int test_main(int, char* [])
{
//test_all<bg::model::d2::point_xy<float> >();
test_all<bg::model::d2::point_xy<double> >();
#ifdef HAVE_TTMATH
test_all<bg::model::d2::point_xy<ttmath_big> >();
#endif
return 0;
}
/*
with viewy as
(
select geometry::STGeomFromText('MULTIPOLYGON(((2 2,2 8,8 8,8 2,2 2)),((20 0,20 10,30 10,30 0,20 0)))',0) as p
, geometry::STGeomFromText('MULTIPOLYGON(((2 12,2 18,8 18,8 12,2 12)),((22 2,28 2,28 8,22 8,22 2)))',0) as q
)
select p from viewy union all select q from viewy
-- select p.STDisjoint(q) from viewy
*/