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[buffer] Fix segmentation fault for rings (start/finish ring was not called),

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including new unit test
This commit is contained in:
Barend Gehrels
2017-03-26 12:49:48 +02:00
parent a4eb71e249
commit 135044258e
4 changed files with 87 additions and 3 deletions
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44
test/algorithms/buffer/buffer_ring.cpp Normal file
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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2017 Barend Gehrels, 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 <test_buffer.hpp>
// Short test verifying behavior of explicit ring_type (polygon without holes)
// The test buffer_polygon.cpp contains all other tests, also for rings.
static std::string const concave_simplex = "POLYGON ((0 0,3 5,3 3,5 3,0 0))";
template <bool Clockwise, typename P>
void test_all()
{
typedef bg::model::ring<P, Clockwise, true> ring_type;
typedef bg::model::polygon<P, Clockwise, true> polygon_type;
bg::strategy::buffer::join_miter join_miter(10.0);
bg::strategy::buffer::join_round join_round(100);
bg::strategy::buffer::end_flat end_flat;
test_one<ring_type, polygon_type>("concave_simplex", concave_simplex, join_round, end_flat, 14.5616, 0.5);
test_one<ring_type, polygon_type>("concave_simplex", concave_simplex, join_miter, end_flat, 16.3861, 0.5);
test_one<ring_type, polygon_type>("concave_simplex", concave_simplex, join_round, end_flat, 0.777987, -0.5);
test_one<ring_type, polygon_type>("concave_simplex", concave_simplex, join_miter, end_flat, 0.724208, -0.5);
}
int test_main(int, char* [])
{
test_all<true, bg::model::point<double, 2, bg::cs::cartesian> >();
#if ! defined(BOOST_GEOMETRY_TEST_ONLY_ONE_TYPE)
test_all<false, bg::model::point<double, 2, bg::cs::cartesian> >();
test_all<true, bg::model::point<float, 2, bg::cs::cartesian> >();
test_all<false, bg::model::point<float, 2, bg::cs::cartesian> >();
#endif
return 0;
}