277 lines
10 KiB
C++
277 lines
10 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Unit Test
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// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
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// This file was modified by Oracle on 2014, 2015.
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// Modifications copyright (c) 2014-2015 Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, 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 <algorithms/test_centroid.hpp>
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#include <boost/geometry/geometries/geometries.hpp>
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#include <boost/geometry/geometries/point_xy.hpp>
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#include <boost/geometry/geometries/adapted/c_array.hpp>
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#include <boost/geometry/geometries/adapted/boost_tuple.hpp>
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#include <test_geometries/all_custom_polygon.hpp>
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BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(cs::cartesian)
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BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)
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template <typename Polygon>
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void test_polygon()
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{
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test_centroid<Polygon>(
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"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2"
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",3.7 1.6,3.4 2,4.1 3,5.3 2.6,5.4 1.2,4.9 0.8,2.9 0.7,2 1.3))",
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4.06923363095238, 1.65055803571429);
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// with holes
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test_centroid<Polygon>(
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"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2"
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",3.7 1.6,3.4 2,4.1 3,5.3 2.6,5.4 1.2,4.9 0.8,2.9 0.7,2 1.3)"
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",(4 2,4.2 1.4,4.8 1.9,4.4 2.2,4 2))",
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4.0466264962959677, 1.6348996057331333);
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test_centroid<Polygon>("POLYGON((0 0,0 10,10 10,10 0,0 0))", 5.0, 5.0);
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test_centroid<Polygon>("POLYGON((-10 0,0 0,0 -10,-10 -10,-10 0))", -5.0, -5.0);
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// invalid, self-intersecting polygon (area = 0)
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test_centroid<Polygon>("POLYGON((1 1,4 -2,4 2,10 0,1 0,10 1,1 1))", 1.0, 1.0);
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// invalid, degenerated
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test_centroid<Polygon>("POLYGON((1 1,1 1,1 1,1 1))", 1.0, 1.0);
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test_centroid<Polygon>("POLYGON((1 1))", 1.0, 1.0);
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// should (1.5 1) be returned?
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// if yes, then all other Polygons degenerated to Linestrings should be handled
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test_centroid<Polygon>("POLYGON((1 1,2 1,1 1,1 1))", 1.0, 1.0);
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// reported 2015.04.24
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// input INT, result FP
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test_centroid
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<
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bg::model::polygon<bg::model::d2::point_xy<int> >,
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typename bg::point_type<Polygon>::type,
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typename bg::coordinate_type<Polygon>::type
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>("POLYGON((1 1, 1 2, 2 2, 2 1, 1 1))", 1.5, 1.5);
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}
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template <typename P>
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void test_2d()
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{
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test_centroid<bg::model::linestring<P> >("LINESTRING(1 1, 2 2, 3 3)", 2.0, 2.0);
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test_centroid<bg::model::linestring<P> >("LINESTRING(0 0,0 4, 4 4)", 1.0, 3.0);
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test_centroid<bg::model::linestring<P> >("LINESTRING(0 0,3 3,0 6,3 9,0 12)", 1.5, 6.0);
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test_centroid<bg::model::linestring<P> >("LINESTRING(1 1,10 1,1 0,10 0,4 -2,1 1)",
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5.41385255923004, 0.13507358481085);
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// degenerated linestring (length = 0)
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test_centroid<bg::model::linestring<P> >("LINESTRING(1 1, 1 1)", 1.0, 1.0);
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test_centroid<bg::model::linestring<P> >("LINESTRING(1 1)", 1.0, 1.0);
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{
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bg::model::linestring<P> ls;
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// LINESTRING(1 -1,1e308 -1e308,0.0001 0.000)
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bg::append(ls, P(1, -1));
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typedef typename bg::coordinate_type<P>::type coord_type;
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//double m = 1.0e308;
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coord_type m = (std::numeric_limits<coord_type>::max)();
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bg::append(ls, P(coord_type(m), coord_type(-m)));
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bg::append(ls, P(coord_type(0.0001), coord_type(0.000)));
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if (BOOST_GEOMETRY_CONDITION((boost::is_same<typename bg::coordinate_type<P>::type, double>::value)))
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{
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// for doubles the INF is detected and the calculation stopped
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// currently for Geometries for which the centroid can't be calculated
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// the first Point is returned
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test_centroid<bg::model::linestring<P> >(ls, 1.0, -1.0);
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}
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else
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{
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// for floats internally the double is used to store intermediate results
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// this type is capable to store MAX_FLT and "correctly" calculate the centroid
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// test_centroid<bg::model::linestring<P> >(ls, m/3, -m/3);
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// the result is around (1.7e38 -1.7e38)
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}
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}
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test_centroid<bg::model::segment<P> >("LINESTRING(1 1, 3 3)", 2.0, 2.0);
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test_centroid<bg::model::ring<P> >(
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"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2"
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",3.7 1.6,3.4 2,4.1 3,5.3 2.6,5.4 1.2,4.9 0.8,2.9 0.7,2 1.3))",
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4.06923363095238, 1.65055803571429);
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test_polygon<bg::model::polygon<P> >();
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test_polygon<all_custom_polygon<P> >();
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// ccw
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test_centroid<bg::model::ring<P, false> >(
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"POLYGON((2 1.3,2.9 0.7,4.9 0.8,5.4 1.2,5.3 2.6,4.1 3,3.4 2"
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",3.7 1.6,3.4 1.2,2.8 1.8,2.4 1.7,2 1.3))",
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4.06923363095238, 1.65055803571429);
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// open / closed
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test_centroid<bg::model::ring<P, true, true> >(
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"POLYGON((1 1,2 2,3 1,2 0,1 1))", 2.0, 1.0);
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test_centroid<bg::model::ring<P, true, false> >(
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"POLYGON((1 1,2 2,3 1,2 0))", 2.0, 1.0);
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test_centroid<bg::model::box<P> >("POLYGON((1 2,3 4))", 2, 3);
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test_centroid<P>("POINT(3 3)", 3, 3);
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// INT -> FP
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test_centroid
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<
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bg::model::ring<bg::model::d2::point_xy<int> >,
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P, typename bg::coordinate_type<P>::type
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>("POLYGON((1 1, 1 2, 2 2, 2 1, 1 1))", 1.5, 1.5);
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test_centroid
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<
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bg::model::linestring<bg::model::d2::point_xy<int> >,
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P, typename bg::coordinate_type<P>::type
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>("LINESTRING(1 1, 2 2)", 1.5, 1.5);
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test_centroid
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<
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bg::model::box<bg::model::d2::point_xy<int> >,
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P, typename bg::coordinate_type<P>::type
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>("BOX(1 1, 2 2)", 1.5, 1.5);
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}
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template <typename P>
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void test_3d()
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{
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test_centroid<bg::model::linestring<P> >("LINESTRING(1 2 3,4 5 -6,7 -8 9,-10 11 12,13 -14 -15, 16 17 18)",
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5.6748865168734692, 0.31974938587214002, 1.9915270387763671);
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test_centroid<bg::model::box<P> >("POLYGON((1 2 3,5 6 7))", 3, 4, 5);
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test_centroid<bg::model::segment<P> >("LINESTRING(1 1 1,3 3 3)", 2, 2, 2);
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test_centroid<P>("POINT(1 2 3)", 1, 2, 3);
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}
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template <typename P>
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void test_5d()
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{
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test_centroid<bg::model::linestring<P> >("LINESTRING(1 2 3 4 95,4 5 -6 24 40,7 -8 9 -5 -7,-10 11 12 -5 5,13 -14 -15 4 3, 16 17 18 5 12)",
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4.9202312983547678, 0.69590937869808345, 1.2632138719797417, 6.0468332057401986, 23.082402715244868);
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}
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template <typename P>
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void test_exceptions()
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{
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test_centroid_exception<bg::model::linestring<P> >();
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test_centroid_exception<bg::model::polygon<P> >();
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test_centroid_exception<bg::model::ring<P> >();
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// Empty exterior ring
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test_centroid_exception<bg::model::polygon<P> >(
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"POLYGON((), ())");
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test_centroid_exception<bg::model::polygon<P> >(
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"POLYGON((), (0 0, 1 0, 1 1, 0 1, 0 0))");
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}
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template <typename P>
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void test_empty()
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{
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// Empty interior ring
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test_centroid<bg::model::polygon<P> >(
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"POLYGON((0 0, 1 0, 1 1, 0 1, 0 0), ())",
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0.5, 0.5);
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}
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void test_large_integers()
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{
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typedef bg::model::point<int, 2, bg::cs::cartesian> int_point_type;
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typedef bg::model::point<double, 2, bg::cs::cartesian> double_point_type;
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bg::model::polygon<int_point_type> int_poly;
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bg::model::polygon<double_point_type> double_poly;
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std::string const polygon_li = "POLYGON((1872000 528000,1872000 192000,1536119 192000,1536000 528000,1200000 528000,1200000 863880,1536000 863880,1872000 863880,1872000 528000))";
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bg::read_wkt(polygon_li, int_poly);
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bg::read_wkt(polygon_li, double_poly);
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int_point_type int_centroid;
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double_point_type double_centroid;
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bg::centroid(int_poly, int_centroid);
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bg::centroid(double_poly, double_centroid);
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int_point_type double_centroid_as_int;
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bg::assign_zero(double_centroid_as_int);
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bg::assign(int_centroid, double_centroid_as_int);
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BOOST_CHECK_EQUAL(bg::get<0>(int_centroid), bg::get<0>(double_centroid_as_int));
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BOOST_CHECK_EQUAL(bg::get<1>(int_centroid), bg::get<1>(double_centroid_as_int));
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}
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//#include <to_svg.hpp>
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void test_large_doubles()
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{
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typedef bg::model::point<double, 2, bg::cs::cartesian> point;
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point pt_far, pt_near;
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bg::model::polygon<point> poly_far, poly_near;
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// related to ticket #10643
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bg::read_wkt("POLYGON((1074699.93 703064.65, 1074703.90 703064.58, 1074704.53 703061.40, 1074702.10 703054.62, 1074699.93 703064.65))", poly_far);
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bg::read_wkt("POLYGON((699.93 64.65, 703.90 64.58, 704.53 61.40, 702.10 54.62, 699.93 64.65))", poly_near);
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bg::centroid(poly_far, pt_far);
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bg::centroid(poly_near, pt_near);
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BOOST_CHECK(bg::within(pt_far, poly_far));
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BOOST_CHECK(bg::within(pt_near, poly_near));
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point pt_near_moved;
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bg::set<0>(pt_near_moved, bg::get<0>(pt_near) + 1074000.0);
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bg::set<1>(pt_near_moved, bg::get<1>(pt_near) + 703000.0);
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//geom_to_svg(poly_far, pt_far, "far.svg");
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//geom_to_svg(poly_near, pt_near, "near.svg");
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double d = bg::distance(pt_far, pt_near_moved);
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BOOST_CHECK(d < 0.1);
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}
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int test_main(int, char* [])
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{
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test_2d<bg::model::d2::point_xy<double> >();
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test_2d<boost::tuple<float, float> >();
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test_2d<bg::model::d2::point_xy<float> >();
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test_3d<boost::tuple<double, double, double> >();
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test_5d<boost::tuple<double, double, double, double, double> >();
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#if defined(HAVE_TTMATH)
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test_2d<bg::model::d2::point_xy<ttmath_big> >();
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test_3d<boost::tuple<ttmath_big, ttmath_big, ttmath_big> >();
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#endif
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#ifndef NDEBUG
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// The test currently fails in release mode. TODO: fix this
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test_large_integers();
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#endif
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test_large_doubles();
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test_exceptions<bg::model::d2::point_xy<double> >();
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test_empty<bg::model::d2::point_xy<double> >();
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return 0;
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}
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