175 lines
4.0 KiB
C++
175 lines
4.0 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Unit Test
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// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <algorithm>
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#include <iterator>
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#include <sstream>
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#include <string>
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#include <geometry_test_common.hpp>
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#include <boost/geometry/iterators/closing_iterator.hpp>
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#include <boost/geometry/core/coordinate_type.hpp>
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#include <boost/geometry/io/wkt/read.hpp>
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#include <boost/geometry/geometries/geometries.hpp>
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#include <boost/geometry/geometries/point_xy.hpp>
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#include <boost/range/adaptor/transformed.hpp>
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// The closing iterator should also work on normal std:: containers
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void test_empty_non_geometry()
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{
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std::vector<int> v;
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typedef bg::closing_iterator
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<
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std::vector<int> const
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> closing_iterator;
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closing_iterator it(v);
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closing_iterator end(v, true);
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std::ostringstream out;
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for (; it != end; ++it)
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{
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out << *it;
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}
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BOOST_CHECK_EQUAL(out.str(), "");
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}
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void test_non_geometry()
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{
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std::vector<int> v;
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v.push_back(1);
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v.push_back(2);
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v.push_back(3);
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typedef bg::closing_iterator
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<
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std::vector<int> const
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> closing_iterator;
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closing_iterator it(v);
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closing_iterator end(v, true);
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std::ostringstream out;
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for (; it != end; ++it)
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{
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out << *it;
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}
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BOOST_CHECK_EQUAL(out.str(), "1231");
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}
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void test_transformed_non_geometry()
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{
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std::vector<int> v;
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v.push_back(-1);
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v.push_back(-2);
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v.push_back(-3);
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typedef boost::transformed_range
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<
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std::negate<int>,
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std::vector<int>
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> transformed_range;
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typedef bg::closing_iterator
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<
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transformed_range const
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> closing_iterator;
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transformed_range v2 = v | boost::adaptors::transformed(std::negate<int>());
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closing_iterator it(v2);
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closing_iterator end(v2, true);
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std::ostringstream out;
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for (; it != end; ++it)
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{
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out << *it;
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}
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BOOST_CHECK_EQUAL(out.str(), "1231");
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}
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template <typename Geometry>
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void test_geometry(std::string const& wkt)
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{
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Geometry geometry;
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bg::read_wkt(wkt, geometry);
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typedef bg::closing_iterator<Geometry const> closing_iterator;
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// 1. Test normal behaviour
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{
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closing_iterator it(geometry);
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closing_iterator end(geometry, true);
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std::ostringstream out;
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for (; it != end; ++it)
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{
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out << " " << bg::get<0>(*it) << bg::get<1>(*it);
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}
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BOOST_CHECK_EQUAL(out.str(), " 11 14 44 41 11");
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// Check compilations, it is (since Oct 2010) random access
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it--;
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--it;
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it += 2;
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it -= 2;
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}
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// 2: check copy behaviour
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{
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typedef typename boost::range_iterator<Geometry const>::type normal_iterator;
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Geometry copy;
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std::copy<closing_iterator>(
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closing_iterator(geometry),
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closing_iterator(geometry, true),
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std::back_inserter(copy));
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std::ostringstream out;
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for (normal_iterator cit = boost::begin(copy); cit != boost::end(copy); ++cit)
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{
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out << " " << bg::get<0>(*cit) << bg::get<1>(*cit);
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}
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BOOST_CHECK_EQUAL(out.str(), " 11 14 44 41 11");
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}
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}
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template <typename P>
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void test_all()
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{
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test_empty_non_geometry();
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test_non_geometry();
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test_transformed_non_geometry();
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test_geometry<bg::model::ring<P> >("POLYGON((1 1,1 4,4 4,4 1))");
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}
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int test_main(int, char* [])
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{
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test_all<bg::model::d2::point_xy<double> >();
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return 0;
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}
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