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91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library) test file
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//
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// Copyright Barend Gehrels 2007-2009, Geodan, Amsterdam, the Netherlands
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// Copyright Bruno Lalande 2008, 2009
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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 <sstream>
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#include <string>
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#include <geometry_test_common.hpp>
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#include <boost/geometry/iterators/ever_circling_iterator.hpp>
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#include <boost/geometry/core/coordinate_type.hpp>
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#include <boost/geometry/extensions/gis/io/wkt/read_wkt.hpp>
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#include <boost/geometry/geometries/cartesian2d.hpp>
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template <typename G>
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void test_geometry(std::string const& wkt)
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{
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G geo;
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boost::geometry::read_wkt(wkt, geo);
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typedef typename boost::range_iterator<G const>::type iterator_type;
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// Run 3 times through the geometry
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int n = boost::size(geo) * 3;
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{
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std::ostringstream out;
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boost::geometry::ever_circling_iterator<iterator_type> it(boost::begin(geo), boost::end(geo));
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for (int i = 0; i < n; ++i, ++it)
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{
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out << boost::geometry::get<0>(*it);
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}
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BOOST_CHECK_EQUAL(out.str(), "123451234512345");
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}
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{
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std::ostringstream out;
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// Start somewhere
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boost::geometry::ever_circling_iterator<iterator_type> it(
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boost::begin(geo), boost::end(geo), boost::begin(geo) + 1);
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for (int i = 0; i < n; ++i, ++it)
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{
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out << boost::geometry::get<0>(*it);
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}
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BOOST_CHECK_EQUAL(out.str(), "234512345123451");
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}
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{
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std::ostringstream out;
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// Navigate to somewhere
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boost::geometry::ever_circling_iterator<iterator_type> it(boost::begin(geo), boost::end(geo));
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for (int i = 0; i < n; ++i, ++it)
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{
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const int m = boost::size(geo);
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it.moveto(boost::begin(geo) + m - (i % m) - 1);
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out << boost::geometry::get<0>(*it);
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}
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BOOST_CHECK_EQUAL(out.str(), "543215432154321");
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}
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// Check the range_iterator-one
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{
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std::ostringstream out;
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boost::geometry::ever_circling_range_iterator<G> it(geo);
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for (int i = 0; i < n; ++i, ++it)
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{
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out << boost::geometry::get<0>(*it);
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}
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BOOST_CHECK_EQUAL(out.str(), "123451234512345");
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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_geometry<boost::geometry::linestring<P> >("linestring(1 1,2 2,3 3,4 4,5 5)");
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}
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int test_main(int, char* [])
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{
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test_all<boost::geometry::point_2d>();
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return 0;
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}
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