1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
// This file was modified by Oracle on 2014-2021.
// Modifications copyright (c) 2014-2021 Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// 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 <algorithms/test_centroid.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/adapted/c_array.hpp>
#include <boost/geometry/geometries/adapted/boost_tuple.hpp>
#include <test_geometries/all_custom_polygon.hpp>
BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(cs::cartesian)
BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)
template <typename Polygon>
void test_polygon()
{
test_centroid<Polygon>(
"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2"
",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))",
4.06923363095238, 1.65055803571429);
// with holes
test_centroid<Polygon>(
"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2"
",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)"
",(4 2,4.2 1.4,4.8 1.9,4.4 2.2,4 2))",
4.0466264962959677, 1.6348996057331333);
test_centroid<Polygon>("POLYGON((0 0,0 10,10 10,10 0,0 0))", 5.0, 5.0);
test_centroid<Polygon>("POLYGON((-10 0,0 0,0 -10,-10 -10,-10 0))", -5.0, -5.0);
// invalid, self-intersecting polygon (area = 0)
test_centroid<Polygon>("POLYGON((1 1,4 -2,4 2,10 0,1 0,10 1,1 1))", 1.0, 1.0);
// invalid, degenerated
test_centroid<Polygon>("POLYGON((1 1,1 1,1 1,1 1))", 1.0, 1.0);
test_centroid<Polygon>("POLYGON((1 1))", 1.0, 1.0);
// should (1.5 1) be returned?
// if yes, then all other Polygons degenerated to Linestrings should be handled
test_centroid<Polygon>("POLYGON((1 1,2 1,1 1,1 1))", 1.0, 1.0);
// reported 2015.04.24
// input INT, result FP
test_centroid
<
bg::model::polygon<bg::model::d2::point_xy<int> >,
typename bg::point_type<Polygon>::type,
typename bg::coordinate_type<Polygon>::type
>("POLYGON((1 1, 1 2, 2 2, 2 1, 1 1))", 1.5, 1.5);
}
template <typename P>
void test_2d()
{
test_centroid<bg::model::linestring<P> >("LINESTRING(1 1, 2 2, 3 3)", 2.0, 2.0);
test_centroid<bg::model::linestring<P> >("LINESTRING(0 0,0 4, 4 4)", 1.0, 3.0);
test_centroid<bg::model::linestring<P> >("LINESTRING(0 0,3 3,0 6,3 9,0 12)", 1.5, 6.0);
test_centroid<bg::model::linestring<P> >("LINESTRING(1 1,10 1,1 0,10 0,4 -2,1 1)",
5.41385255923004, 0.13507358481085);
// degenerated linestring (length = 0)
test_centroid<bg::model::linestring<P> >("LINESTRING(1 1, 1 1)", 1.0, 1.0);
test_centroid<bg::model::linestring<P> >("LINESTRING(1 1)", 1.0, 1.0);
{
bg::model::linestring<P> ls;
// LINESTRING(1 -1,1e308 -1e308,0.0001 0.000)
bg::append(ls, P(1, -1));
typedef typename bg::coordinate_type<P>::type coord_type;
//double m = 1.0e308;
coord_type m = (std::numeric_limits<coord_type>::max)();
bg::append(ls, P(coord_type(m), coord_type(-m)));
bg::append(ls, P(coord_type(0.0001), coord_type(0.000)));
if (BOOST_GEOMETRY_CONDITION((std::is_same<typename bg::coordinate_type<P>::type, double>::value)))
{
// for doubles the INF is detected and the calculation stopped
// currently for Geometries for which the centroid can't be calculated
// the first Point is returned
test_centroid<bg::model::linestring<P> >(ls, 1.0, -1.0);
}
else
{
// for floats internally the double is used to store intermediate results
// this type is capable to store MAX_FLT and "correctly" calculate the centroid
// test_centroid<bg::model::linestring<P> >(ls, m/3, -m/3);
// the result is around (1.7e38 -1.7e38)
}
}
test_centroid<bg::model::segment<P> >("LINESTRING(1 1, 3 3)", 2.0, 2.0);
test_centroid<bg::model::ring<P> >(
"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2"
",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))",
4.06923363095238, 1.65055803571429);
test_polygon<bg::model::polygon<P> >();
test_polygon<all_custom_polygon<P> >();
// ccw
test_centroid<bg::model::ring<P, false> >(
"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"
",3.7 1.6,3.4 1.2,2.8 1.8,2.4 1.7,2 1.3))",
4.06923363095238, 1.65055803571429);
// open / closed
test_centroid<bg::model::ring<P, true, true> >(
"POLYGON((1 1,2 2,3 1,2 0,1 1))", 2.0, 1.0);
test_centroid<bg::model::ring<P, true, false> >(
"POLYGON((1 1,2 2,3 1,2 0))", 2.0, 1.0);
test_centroid<bg::model::box<P> >("POLYGON((1 2,3 4))", 2, 3);
test_centroid<P>("POINT(3 3)", 3, 3);
// INT -> FP
test_centroid
<
bg::model::ring<bg::model::d2::point_xy<int> >,
P, typename bg::coordinate_type<P>::type
>("POLYGON((1 1, 1 2, 2 2, 2 1, 1 1))", 1.5, 1.5);
test_centroid
<
bg::model::linestring<bg::model::d2::point_xy<int> >,
P, typename bg::coordinate_type<P>::type
>("LINESTRING(1 1, 2 2)", 1.5, 1.5);
test_centroid
<
bg::model::box<bg::model::d2::point_xy<int> >,
P, typename bg::coordinate_type<P>::type
>("BOX(1 1, 2 2)", 1.5, 1.5);
}
template <typename P>
void test_3d()
{
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)",
5.6748865168734692, 0.31974938587214002, 1.9915270387763671);
test_centroid<bg::model::box<P> >("POLYGON((1 2 3,5 6 7))", 3, 4, 5);
test_centroid<bg::model::segment<P> >("LINESTRING(1 1 1,3 3 3)", 2, 2, 2);
test_centroid<P>("POINT(1 2 3)", 1, 2, 3);
}
template <typename P>
void test_5d()
{
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)",
4.9202312983547678, 0.69590937869808345, 1.2632138719797417, 6.0468332057401986, 23.082402715244868);
}
template <typename P>
void test_exceptions()
{
test_centroid_exception<bg::model::linestring<P> >();
test_centroid_exception<bg::model::polygon<P> >();
test_centroid_exception<bg::model::ring<P> >();
// Empty exterior ring
test_centroid_exception<bg::model::polygon<P> >(
"POLYGON((), ())");
test_centroid_exception<bg::model::polygon<P> >(
"POLYGON((), (0 0, 1 0, 1 1, 0 1, 0 0))");
}
template <typename P>
void test_empty()
{
// Empty interior ring
test_centroid<bg::model::polygon<P> >(
"POLYGON((0 0, 1 0, 1 1, 0 1, 0 0), ())",
0.5, 0.5);
}
void test_large_integers()
{
typedef bg::model::point<int, 2, bg::cs::cartesian> int_point_type;
typedef bg::model::point<double, 2, bg::cs::cartesian> double_point_type;
bg::model::polygon<int_point_type> int_poly;
bg::model::polygon<double_point_type> double_poly;
std::string const polygon_li = "POLYGON((1872000 528000,1872000 192000,1536119 192000,1536000 528000,1200000 528000,1200000 863880,1536000 863880,1872000 863880,1872000 528000))";
bg::read_wkt(polygon_li, int_poly);
bg::read_wkt(polygon_li, double_poly);
int_point_type int_centroid;
double_point_type double_centroid;
bg::centroid(int_poly, int_centroid);
bg::centroid(double_poly, double_centroid);
int_point_type double_centroid_as_int;
bg::assign_zero(double_centroid_as_int);
bg::assign(int_centroid, double_centroid_as_int);
BOOST_CHECK_EQUAL(bg::get<0>(int_centroid), bg::get<0>(double_centroid_as_int));
BOOST_CHECK_EQUAL(bg::get<1>(int_centroid), bg::get<1>(double_centroid_as_int));
}
void test_large_doubles()
{
typedef bg::model::point<double, 2, bg::cs::cartesian> point;
point pt_far, pt_near;
bg::model::polygon<point> poly_far, poly_near;
// related to ticket #10643
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);
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);
bg::centroid(poly_far, pt_far);
bg::centroid(poly_near, pt_near);
BOOST_CHECK(bg::within(pt_far, poly_far));
BOOST_CHECK(bg::within(pt_near, poly_near));
point pt_near_moved;
bg::set<0>(pt_near_moved, bg::get<0>(pt_near) + 1074000.0);
bg::set<1>(pt_near_moved, bg::get<1>(pt_near) + 703000.0);
double d = bg::distance(pt_far, pt_near_moved);
BOOST_CHECK(d < 0.1);
}
int test_main(int, char* [])
{
test_2d<bg::model::d2::point_xy<double> >();
test_2d<boost::tuple<float, float> >();
test_2d<bg::model::d2::point_xy<float> >();
test_3d<boost::tuple<double, double, double> >();
test_5d<boost::tuple<double, double, double, double, double> >();
#ifndef NDEBUG
// The test currently fails in release mode. TODO: fix this
test_large_integers();
#endif
test_large_doubles();
test_exceptions<bg::model::d2::point_xy<double> >();
test_empty<bg::model::d2::point_xy<double> >();
return 0;
}
|
