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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 <geometry_test_common.hpp>
- #include <boost/geometry/views/detail/range_type.hpp>
- #include <boost/geometry/algorithms/detail/as_range.hpp>
- #include <boost/geometry/core/cs.hpp>
- #include <boost/geometry/geometries/geometries.hpp>
- #include <boost/geometry/io/wkt/read.hpp>
- template <int D, typename Range>
- double sum(Range const& range)
- {
- double s = 0.0;
- for (typename boost::range_const_iterator<Range>::type it = boost::begin(range);
- it != boost::end(range); ++it)
- {
- s += bg::get<D>(*it);
- }
- return s;
- }
- template <typename G>
- void test_geometry(std::string const& wkt, double expected_x, double expected_y)
- {
- G geometry;
- // Declare a range-type, compatible with boost::range,
- // such that range_iterator etc could be called
- typedef typename bg::detail::range_type<G>::type range_type;
- bg::read_wkt(wkt, geometry);
- double s = sum<0>(bg::detail::as_range<range_type>(geometry));
- BOOST_CHECK_CLOSE(s, expected_x, 0.001);
- s = sum<1>(bg::detail::as_range<range_type>(geometry));
- BOOST_CHECK_CLOSE(s, expected_y, 0.001);
- }
- template <typename P>
- void test_all()
- {
- // As-range utility should consider a geometry as a range, so
- // linestring stays linestring
- test_geometry<bg::model::linestring<P> >("LINESTRING(1 2,3 4)", 4, 6);
- // polygon will only be outer-ring
- test_geometry<bg::model::polygon<P> >("POLYGON((1 2,3 4))", 4, 6);
- test_geometry<bg::model::polygon<P> >("POLYGON((1 2,3 4),(5 6,7 8,9 10))", 4, 6);
- // the utility is useful for:
- // - convex hull (holes do not count)
- // - envelope (idem)
- }
- int test_main(int, char* [])
- {
- test_all<bg::model::point<double, 2, bg::cs::cartesian> >();
- return 0;
- }
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