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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Unit Test
- // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
- // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
- // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
- // (geolib/GGL), copyright (c) 1995-2010 Geodan, 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 <sstream>
- #include <string>
- #include <geometry_test_common.hpp>
- #include <boost/geometry/iterators/ever_circling_iterator.hpp>
- #include <boost/geometry/core/coordinate_type.hpp>
- #include <boost/geometry/io/wkt/read.hpp>
- #include <boost/geometry/geometries/geometries.hpp>
- #include <boost/geometry/geometries/point_xy.hpp>
- #include <boost/geometry/geometries/register/linestring.hpp>
- #include <boost/range/adaptor/transformed.hpp>
- template <typename G>
- void test_geometry(G const& geo)
- {
- typedef typename boost::range_iterator<G const>::type iterator_type;
- // Run 3 times through the geometry
- std::size_t n = boost::size(geo) * 3;
- {
- std::ostringstream out;
- bg::ever_circling_iterator<iterator_type> it(boost::begin(geo), boost::end(geo));
- for (std::size_t i = 0; i < n; ++i, ++it)
- {
- out << bg::get<0>(*it);
- }
- BOOST_CHECK_EQUAL(out.str(), "123451234512345");
- }
- {
- std::ostringstream out;
- // Start somewhere
- bg::ever_circling_iterator<iterator_type> it(
- boost::begin(geo), boost::end(geo), boost::begin(geo) + 1);
- for (std::size_t i = 0; i < n; ++i, ++it)
- {
- out << bg::get<0>(*it);
- }
- BOOST_CHECK_EQUAL(out.str(), "234512345123451");
- }
- {
- std::ostringstream out;
- // Navigate to somewhere
- bg::ever_circling_iterator<iterator_type> it(boost::begin(geo), boost::end(geo));
- for (std::size_t i = 0; i < n; ++i, ++it)
- {
- std::size_t const m = boost::size(geo);
- it.moveto(boost::begin(geo) + m - (i % m) - 1);
- out << bg::get<0>(*it);
- }
- BOOST_CHECK_EQUAL(out.str(), "543215432154321");
- }
- // Check the range_iterator-one
- {
- std::ostringstream out;
- bg::ever_circling_range_iterator<G const> it(geo);
- for (std::size_t i = 0; i < n; ++i, ++it)
- {
- out << bg::get<0>(*it);
- }
- BOOST_CHECK_EQUAL(out.str(), "123451234512345");
- }
- }
- template <typename G>
- void test_geometry(std::string const& wkt)
- {
- G geo;
- bg::read_wkt(wkt, geo);
- test_geometry(geo);
- }
- template <typename P>
- P transform_point(P const& p)
- {
- P result;
- bg::set<0>(result, bg::get<0>(p) + 1);
- bg::set<1>(result, bg::get<1>(p) + 1);
- return result;
- }
- template <typename G>
- struct transformed_geometry_type
- {
- typedef typename bg::point_type<G>::type point_type;
- typedef boost::transformed_range<point_type(*)(point_type const&), G> type;
- };
- template <typename G>
- void test_transformed_geometry(G const& geo)
- {
- typedef typename bg::point_type<G>::type point_type;
- test_geometry(geo | boost::adaptors::transformed(&transform_point<point_type>));
- }
- template <typename G>
- void test_transformed_geometry(std::string const& wkt)
- {
- G geo;
- bg::read_wkt(wkt, geo);
- test_transformed_geometry(geo);
- }
- BOOST_GEOMETRY_REGISTER_LINESTRING(transformed_geometry_type< bg::model::linestring< bg::model::d2::point_xy<double> > >::type)
- template <typename P>
- void test_all()
- {
- test_geometry<bg::model::linestring<P> >("linestring(1 1,2 2,3 3,4 4,5 5)");
- test_transformed_geometry<bg::model::linestring<P> >("linestring(0 0,1 1,2 2,3 3,4 4)");
- }
- int test_main(int, char* [])
- {
- test_all<bg::model::d2::point_xy<double> >();
- return 0;
- }
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