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63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
// Boost.Geometry
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// Copyright (c) 2022 Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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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 "geometry_test_common.hpp"
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#include <boost/geometry/algorithms/buffer.hpp>
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#include <boost/geometry/geometries/geometries.hpp>
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#include <boost/geometry/io/wkt/read.hpp>
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#include <boost/geometry/strategies/strategies.hpp>
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using pt_t = bg::model::point<double, 2, bg::cs::cartesian>;
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using ls_t = bg::model::linestring<pt_t>;
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using po_t = bg::model::polygon<pt_t>;
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using mpt_t = bg::model::multi_point<pt_t>;
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using mls_t = bg::model::multi_linestring<ls_t>;
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using mpo_t = bg::model::multi_polygon<po_t>;
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using var_t = boost::variant<pt_t, ls_t, po_t, mpt_t, mls_t, mpo_t>;
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using gc_t = bg::model::geometry_collection<var_t>;
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void test_gc()
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{
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gc_t gc;
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bg::read_wkt("GEOMETRYCOLLECTION("
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"POLYGON((0 0,0 5,5 5,5 0,0 0)),"
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"LINESTRING(2 2,9 9),"
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"POINT(0 9)"
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")", gc);
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bg::strategy::buffer::distance_symmetric<double> distance(1.0);
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bg::strategy::buffer::side_straight side;
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bg::strategy::buffer::join_round join;
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bg::strategy::buffer::end_round end;
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bg::strategy::buffer::point_circle circle;
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mpo_t result_mpo;
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bg::buffer(gc, result_mpo, distance, side, join, end, circle);
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BOOST_CHECK(result_mpo.size() == 2);
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double area = bg::area(result_mpo);
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BOOST_CHECK_CLOSE(area, 62.548206613048151, 0.0001);
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gc_t result_gc;
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bg::buffer(gc, result_gc, distance, side, join, end, circle);
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BOOST_CHECK(result_gc.size() == 1);
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BOOST_CHECK(boost::get<mpo_t>(result_gc[0]).size() == 2);
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area = bg::area(boost::get<mpo_t>(result_gc[0]));
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BOOST_CHECK_CLOSE(area, 62.548206613048151, 0.0001);
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}
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int test_main(int, char* [])
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{
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test_gc();
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return 0;
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}
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