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f74180b084
make use of monotonic sections, and get special treatment because there are no helper segments, basically the whole procedure is different This can make buffers around points 3 times faster (if the buffered ring contains many points)
159 lines
7.0 KiB
C++
159 lines
7.0 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Unit Test
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// Copyright (c) 2012-2015 Barend Gehrels, 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 <test_buffer.hpp>
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#include <boost/geometry/multi/geometries/multi_geometries.hpp>
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static std::string const simplex = "MULTIPOINT((5 5),(7 7))";
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static std::string const three = "MULTIPOINT((5 8),(9 8),(7 11))";
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// Generated error (extra polygon on top of rest) at distance 14.0:
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static std::string const multipoint_a = "MULTIPOINT((39 44),(38 37),(41 29),(15 33),(58 39))";
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// Just one with holes at distance ~ 15
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static std::string const multipoint_b = "MULTIPOINT((5 56),(98 67),(20 7),(58 60),(10 4),(75 68),(61 68),(75 62),(92 26),(74 6),(67 54),(20 43),(63 30),(45 7))";
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// Grid, U-form, generates error for square point at 0.54 (top cells to control rescale)
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static std::string const grid_a = "MULTIPOINT(5 0,6 0,7 0, 5 1,7 1, 0 13,8 13)";
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static std::string const mysql_report_2015_02_25_1 = "MULTIPOINT(-9 19,9 -6,-4 4,16 -14,-3 16,14 9)";
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static std::string const mysql_report_2015_02_25_2 = "MULTIPOINT(-2 11,-15 3,6 4,-14 0,20 -7,-17 -1)";
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template <bool Clockwise, typename P>
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void test_all()
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{
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typedef bg::model::polygon<P, Clockwise> polygon;
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typedef bg::model::multi_point<P> multi_point_type;
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bg::strategy::buffer::join_miter join_miter;
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bg::strategy::buffer::end_flat end_flat;
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typedef bg::strategy::buffer::distance_symmetric
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<
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typename bg::coordinate_type<P>::type
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> distance_strategy;
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bg::strategy::buffer::side_straight side_strategy;
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double const pi = boost::geometry::math::pi<double>();
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test_one<multi_point_type, polygon>("simplex1", simplex, join_miter, end_flat, 2.0 * pi, 1.0, 1.0);
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test_one<multi_point_type, polygon>("simplex2", simplex, join_miter, end_flat, 22.8372, 2.0, 2.0);
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test_one<multi_point_type, polygon>("simplex3", simplex, join_miter, end_flat, 44.5692, 3.0, 3.0);
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test_one<multi_point_type, polygon>("three1", three, join_miter, end_flat, 3.0 * pi, 1.0, 1.0);
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test_one<multi_point_type, polygon>("three2", three, join_miter, end_flat, 36.7592, 2.0, 2.0);
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test_one<multi_point_type, polygon>("three19", three, join_miter, end_flat, 33.6914, 1.9, 1.9);
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test_one<multi_point_type, polygon>("three21", three, join_miter, end_flat, 39.6394, 2.1, 2.1);
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test_one<multi_point_type, polygon>("three3", three, join_miter, end_flat, 65.533, 3.0, 3.0);
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test_one<multi_point_type, polygon>("multipoint_a", multipoint_a, join_miter, end_flat, 2049.98, 14.0, 14.0);
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test_one<multi_point_type, polygon>("multipoint_b", multipoint_b, join_miter, end_flat, 7109.88, 15.0, 15.0);
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test_one<multi_point_type, polygon>("multipoint_b1", multipoint_b, join_miter, end_flat, 6911.89, 14.7, 14.7);
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test_one<multi_point_type, polygon>("multipoint_b2", multipoint_b, join_miter, end_flat, 7174.79, 15.1, 15.1);
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// Grid tests
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{
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bg::strategy::buffer::point_square point_strategy;
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test_with_custom_strategies<multi_point_type, polygon>("grid_a50",
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grid_a, join_miter, end_flat,
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distance_strategy(0.5), side_strategy, point_strategy, 7.0);
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#if defined(BOOST_GEOMETRY_BUFFER_INCLUDE_FAILING_TESTS)
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test_with_custom_strategies<multi_point_type, polygon>("grid_a54",
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grid_a, join_miter, end_flat,
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distance_strategy(0.54), side_strategy, point_strategy, 99);
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#endif
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}
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test_with_custom_strategies<multi_point_type, polygon>("mysql_report_2015_02_25_1_800",
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mysql_report_2015_02_25_1, join_miter, end_flat,
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distance_strategy(6051788), side_strategy,
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bg::strategy::buffer::point_circle(800), 115057490003226.125, 1.0);
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}
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template <typename P>
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void test_many_points_per_circle()
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{
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// Tests for large distances / many points in circles.
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// Before Boost 1.58, this would (seem to) hang. It is solved by using monotonic sections in get_turns for buffer
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// This is more time consuming, only calculate this for counter clockwise
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// Reported by MySQL 2015-02-25
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// SELECT ST_ASTEXT(ST_BUFFER(ST_GEOMFROMTEXT(''), 6051788, ST_BUFFER_STRATEGY('point_circle', 83585)));
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// SELECT ST_ASTEXT(ST_BUFFER(ST_GEOMFROMTEXT(''), 5666962, ST_BUFFER_STRATEGY('point_circle', 46641))) ;
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typedef bg::model::polygon<P, false> polygon;
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typedef bg::model::multi_point<P> multi_point_type;
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bg::strategy::buffer::join_miter join_miter;
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bg::strategy::buffer::end_flat end_flat;
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typedef bg::strategy::buffer::distance_symmetric
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<
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typename bg::coordinate_type<P>::type
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> distance_strategy;
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bg::strategy::buffer::side_straight side_strategy;
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using bg::strategy::buffer::point_circle;
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double const tolerance = 1.0;
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// Strategies with many points, which are (very) slow in debug mode
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test_with_custom_strategies<multi_point_type, polygon>(
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"mysql_report_2015_02_25_1_8000",
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mysql_report_2015_02_25_1, join_miter, end_flat,
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distance_strategy(6051788), side_strategy, point_circle(8000),
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115058661065242.812, tolerance);
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test_with_custom_strategies<multi_point_type, polygon>(
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"mysql_report_2015_02_25_1",
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mysql_report_2015_02_25_1, join_miter, end_flat,
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distance_strategy(6051788), side_strategy, point_circle(83585),
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115058672785611.219, tolerance);
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// Takes about 20 seconds in release mode
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test_with_custom_strategies<multi_point_type, polygon>(
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"mysql_report_2015_02_25_1_250k",
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mysql_report_2015_02_25_1, join_miter, end_flat,
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distance_strategy(6051788), side_strategy, point_circle(250000),
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115058672880671.531, tolerance);
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#if defined(BOOST_GEOMETRY_BUFFER_INCLUDE_FAILING_TESTS)
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// Takes too long, TODO improve turn_in_piece_visitor
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test_with_custom_strategies<multi_point_type, polygon>(
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"mysql_report_2015_02_25_1",
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mysql_report_2015_02_25_1, join_miter, end_flat,
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distance_strategy(6051788), side_strategy, point_circle(800000),
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115058672799999.999, tolerance); // area to be determined
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#endif
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test_with_custom_strategies<multi_point_type, polygon>(
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"mysql_report_2015_02_25_2",
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mysql_report_2015_02_25_2, join_miter, end_flat,
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distance_strategy(5666962), side_strategy, point_circle(46641),
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100891031341757.344, tolerance);
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}
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int test_main(int, char* [])
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{
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test_all<true, bg::model::point<double, 2, bg::cs::cartesian> >();
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test_all<false, bg::model::point<double, 2, bg::cs::cartesian> >();
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#if defined(BOOST_GEOMETRY_COMPILER_MODE_RELEASE) && ! defined(BOOST_GEOMETRY_COMPILER_MODE_DEBUG)
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test_many_points_per_circle<bg::model::point<double, 2, bg::cs::cartesian> >();
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#else
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std::cout << "Skipping some tests in debug or unknown mode" << std::endl;
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#endif
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return 0;
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}
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