geometry/test/algorithms/is_valid_geo.cpp
2018-01-23 21:13:02 +01:00

76 lines
2.4 KiB
C++

// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2017 Adam Wulkiewicz, Lodz, Poland.
// Copyright (c) 2014-2018, Oracle and/or its affiliates.
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
#ifndef BOOST_TEST_MODULE
#define BOOST_TEST_MODULE test_is_valid_geo
#endif
#include <limits>
#include <iostream>
#include <boost/test/included/unit_test.hpp>
#include "test_is_valid.hpp"
#include <boost/geometry/core/coordinate_type.hpp>
#include <boost/geometry/algorithms/correct.hpp>
#include <boost/geometry/algorithms/intersection.hpp>
#include <boost/geometry/algorithms/reverse.hpp>
BOOST_AUTO_TEST_CASE( test_is_valid_geo_polygon )
{
typedef bg::model::point<double, 2, bg::cs::geographic<bg::degree> > pt;
typedef bg::model::polygon<pt, false> G;
typedef validity_tester_geo_areal<false> tester;
typedef test_valid<tester, G> test;
test::apply("p01", "POLYGON((-1 -1, 1 -1, 1 1, -1 1, -1 -1),(-0.5 -0.5, -0.5 0.5, 0.0 0.0, -0.5 -0.5),(0.0 0.0, 0.5 0.5, 0.5 -0.5, 0.0 0.0))", true);
}
template <typename Poly, typename Spheroid>
void test_valid_s(std::string const& wkt,
Spheroid const& sph,
bool expected_result)
{
bg::strategy::intersection::geographic_segments<> is(sph);
bg::strategy::area::geographic<> as(sph);
Poly p;
bg::read_wkt(wkt, p);
bg::correct(p, as);
BOOST_CHECK(bg::is_valid(p, is) == expected_result);
}
BOOST_AUTO_TEST_CASE( test_is_valid_epsg4053_polygon )
{
typedef bg::model::point<double, 2, bg::cs::geographic<bg::degree> > pt;
typedef bg::model::polygon<pt, false> po;
bg::srs::spheroid<double> epsg4053(6371228, 6371228);
bg::srs::spheroid<double> wgs84;
// NOTE: the orientation is different in these CSes,
// in one of them the polygon is corrected before passing it into is_valid()
test_valid_s<po>("POLYGON((-148 -68,178 -74,76 0,-148 -68))", wgs84, true);
test_valid_s<po>("POLYGON((-148 -68,178 -74,76 0,-148 -68))", epsg4053, true);
test_valid_s<po>("POLYGON((-152 -54,-56 43,142 -52,-152 -54))", wgs84, true);
test_valid_s<po>("POLYGON((-152 -54,-56 43,142 -52,-152 -54))", epsg4053, true);
return;
}