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7c673cae FG |
1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | // Unit Test | |
3 | ||
4 | // Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands. | |
5 | // Copyright (c) 2008-2014 Bruno Lalande, Paris, France. | |
6 | // Copyright (c) 2009-2014 Mateusz Loskot, London, UK. | |
7 | // Copyright (c) 2013-2014 Adam Wulkiewicz, Lodz, Poland. | |
8 | ||
1e59de90 TL |
9 | // This file was modified by Oracle on 2014-2021. |
10 | // Modifications copyright (c) 2014-2021, Oracle and/or its affiliates. | |
7c673cae | 11 | // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle |
b32b8144 | 12 | // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle |
7c673cae FG |
13 | |
14 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library | |
15 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. | |
16 | ||
17 | // Use, modification and distribution is subject to the Boost Software License, | |
18 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
19 | // http://www.boost.org/LICENSE_1_0.txt) | |
20 | ||
21 | ||
22 | #include <sstream> | |
23 | ||
7c673cae FG |
24 | #include <geometry_test_common.hpp> |
25 | ||
26 | #include <boost/geometry/algorithms/comparable_distance.hpp> | |
b32b8144 | 27 | #include <boost/geometry/algorithms/make.hpp> |
7c673cae FG |
28 | |
29 | #include <boost/geometry/geometries/geometries.hpp> | |
30 | #include <boost/geometry/geometries/point_xy.hpp> | |
31 | #include <boost/geometry/io/wkt/read.hpp> | |
32 | #include <boost/geometry/strategies/strategies.hpp> | |
33 | ||
34 | template <typename P> | |
35 | void test_distance_result() | |
36 | { | |
37 | typedef typename bg::default_distance_result<P, P>::type distance_type; | |
38 | ||
39 | P p1 = bg::make<P>(0, 0); | |
40 | P p2 = bg::make<P>(3, 0); | |
41 | P p3 = bg::make<P>(0, 4); | |
42 | ||
43 | distance_type dr12 = bg::comparable_distance(p1, p2); | |
44 | distance_type dr13 = bg::comparable_distance(p1, p3); | |
45 | distance_type dr23 = bg::comparable_distance(p2, p3); | |
46 | ||
47 | BOOST_CHECK_CLOSE(dr12, 9.000, 0.001); | |
48 | BOOST_CHECK_CLOSE(dr13, 16.000, 0.001); | |
49 | BOOST_CHECK_CLOSE(dr23, 25.000, 0.001); | |
50 | ||
51 | } | |
52 | ||
53 | template <typename P> | |
54 | void test_distance_point() | |
55 | { | |
56 | P p1; | |
57 | bg::set<0>(p1, 1); | |
58 | bg::set<1>(p1, 1); | |
59 | ||
60 | P p2; | |
61 | bg::set<0>(p2, 2); | |
62 | bg::set<1>(p2, 2); | |
63 | ||
64 | typename bg::coordinate_type<P>::type d = bg::comparable_distance(p1, p2); | |
65 | BOOST_CHECK_CLOSE(d, 2.0, 0.001); | |
66 | } | |
67 | ||
68 | template <typename P> | |
69 | void test_distance_segment() | |
70 | { | |
71 | typedef typename bg::coordinate_type<P>::type coordinate_type; | |
72 | ||
73 | P s1 = bg::make<P>(2, 2); | |
74 | P s2 = bg::make<P>(3, 3); | |
75 | ||
76 | // Check points left, right, projected-left, projected-right, on segment | |
77 | P p1 = bg::make<P>(0, 0); | |
78 | P p2 = bg::make<P>(4, 4); | |
79 | P p3 = bg::make<P>(2.4, 2.6); | |
80 | P p4 = bg::make<P>(2.6, 2.4); | |
81 | P p5 = bg::make<P>(2.5, 2.5); | |
82 | ||
83 | bg::model::referring_segment<P const> const seg(s1, s2); | |
84 | ||
85 | coordinate_type d1 = bg::comparable_distance(p1, seg); BOOST_CHECK_CLOSE(d1, 8.0, 0.001); | |
86 | coordinate_type d2 = bg::comparable_distance(p2, seg); BOOST_CHECK_CLOSE(d2, 2.0, 0.001); | |
87 | coordinate_type d3 = bg::comparable_distance(p3, seg); BOOST_CHECK_CLOSE(d3, 0.02, 0.001); | |
88 | coordinate_type d4 = bg::comparable_distance(p4, seg); BOOST_CHECK_CLOSE(d4, 0.02, 0.001); | |
89 | coordinate_type d5 = bg::comparable_distance(p5, seg); BOOST_CHECK_CLOSE(d5, 0.0, 0.001); | |
90 | ||
91 | // Reverse case | |
92 | coordinate_type dr1 = bg::comparable_distance(seg, p1); BOOST_CHECK_CLOSE(dr1, d1, 0.001); | |
93 | coordinate_type dr2 = bg::comparable_distance(seg, p2); BOOST_CHECK_CLOSE(dr2, d2, 0.001); | |
94 | } | |
95 | ||
96 | template <typename P> | |
97 | void test_distance_linestring() | |
98 | { | |
99 | bg::model::linestring<P> points; | |
100 | points.push_back(bg::make<P>(1, 1)); | |
101 | points.push_back(bg::make<P>(3, 3)); | |
102 | ||
103 | P p = bg::make<P>(2, 1); | |
104 | ||
105 | typename bg::coordinate_type<P>::type d = bg::comparable_distance(p, points); | |
106 | BOOST_CHECK_CLOSE(d, 0.5, 0.001); | |
107 | ||
108 | p = bg::make<P>(5, 5); | |
109 | d = bg::comparable_distance(p, points); | |
110 | BOOST_CHECK_CLOSE(d, 8.0, 0.001); | |
111 | ||
112 | ||
113 | bg::model::linestring<P> line; | |
114 | line.push_back(bg::make<P>(1,1)); | |
115 | line.push_back(bg::make<P>(2,2)); | |
116 | line.push_back(bg::make<P>(3,3)); | |
117 | ||
118 | p = bg::make<P>(5, 5); | |
119 | ||
120 | d = bg::comparable_distance(p, line); | |
121 | BOOST_CHECK_CLOSE(d, 8.0, 0.001); | |
122 | ||
123 | // Reverse case | |
124 | d = bg::comparable_distance(line, p); | |
125 | BOOST_CHECK_CLOSE(d, 8.0, 0.001); | |
126 | } | |
127 | ||
128 | template <typename P> | |
129 | void test_all() | |
130 | { | |
131 | test_distance_result<P>(); | |
132 | test_distance_point<P>(); | |
133 | test_distance_segment<P>(); | |
134 | test_distance_linestring<P>(); | |
135 | } | |
136 | ||
137 | template <typename T> | |
138 | void test_double_result_from_integer() | |
139 | { | |
140 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
141 | ||
142 | point_type point; | |
143 | ||
144 | // Check linestring | |
145 | bg::model::linestring<point_type> linestring; | |
146 | bg::read_wkt("POINT(2 2)", point); | |
147 | bg::read_wkt("LINESTRING(4 1,1 4)", linestring); | |
148 | ||
149 | double normal_distance = bg::distance(point, linestring); | |
150 | double comparable_distance = bg::comparable_distance(point, linestring); | |
151 | ||
152 | BOOST_CHECK_CLOSE(normal_distance, std::sqrt(0.5), 0.001); | |
153 | BOOST_CHECK_CLOSE(comparable_distance, 0.5, 0.001); | |
154 | ||
155 | // Check polygon | |
156 | bg::model::polygon<point_type> polygon; | |
157 | bg::read_wkt("POLYGON((0 0,1 9,8 1,0 0),(1 1,4 1,1 4,1 1))", polygon); | |
158 | ||
159 | normal_distance = bg::distance(point, polygon); | |
160 | comparable_distance = bg::comparable_distance(point, polygon); | |
161 | ||
162 | BOOST_CHECK_CLOSE(normal_distance, std::sqrt(0.5), 0.001); | |
163 | BOOST_CHECK_CLOSE(comparable_distance, 0.5, 0.001); | |
164 | } | |
165 | ||
166 | template <typename T> | |
167 | struct test_variant_different_default_strategy | |
168 | { | |
169 | static inline void apply() | |
170 | { | |
171 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
172 | typedef bg::model::segment<point_type> segment_type; | |
173 | typedef bg::model::box<point_type> box_type; | |
174 | typedef boost::variant<point_type, segment_type, box_type> variant_type; | |
175 | ||
176 | point_type point; | |
177 | bg::read_wkt("POINT(1 3)", point); | |
178 | ||
179 | segment_type seg; | |
180 | bg::read_wkt("LINESTRING(1 1,4 4)", seg); | |
181 | ||
182 | box_type box; | |
183 | bg::read_wkt("BOX(-1 -1,0 0)", box); | |
184 | ||
185 | variant_type v1, v2; | |
186 | ||
1e59de90 TL |
187 | using variant_cdistance_t = typename bg::comparable_distance_result |
188 | < | |
189 | variant_type, variant_type, bg::default_strategy | |
190 | >::type; | |
191 | using cdistance_t = typename bg::comparable_distance_result | |
192 | < | |
193 | point_type, point_type, bg::default_strategy | |
194 | >::type; | |
195 | BOOST_GEOMETRY_STATIC_ASSERT( | |
196 | (std::is_same<variant_cdistance_t, cdistance_t>::value), | |
197 | "Unexpected result type", | |
198 | variant_cdistance_t, cdistance_t); | |
7c673cae FG |
199 | |
200 | // Default strategy | |
201 | v1 = point; | |
202 | v2 = point; | |
203 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
204 | bg::comparable_distance(point, point), | |
205 | 0.0001); | |
206 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, point), | |
207 | bg::comparable_distance(point, point), | |
208 | 0.0001); | |
209 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
210 | bg::comparable_distance(point, point), | |
211 | 0.0001); | |
212 | v1 = point; | |
213 | v2 = seg; | |
214 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
215 | bg::comparable_distance(point, seg), | |
216 | 0.0001); | |
217 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, seg), | |
218 | bg::comparable_distance(point, seg), | |
219 | 0.0001); | |
220 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
221 | bg::comparable_distance(point, seg), 0.0001); | |
222 | v1 = point; | |
223 | v2 = box; | |
224 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
225 | bg::comparable_distance(point, box), | |
226 | 0.0001); | |
227 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, box), | |
228 | bg::comparable_distance(point, box), | |
229 | 0.0001); | |
230 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
231 | bg::comparable_distance(point, box), 0.0001); | |
232 | } | |
233 | }; | |
234 | ||
235 | template <typename T, typename ExpectedResultType = double> | |
236 | struct test_variant_same_default_strategy | |
237 | { | |
238 | static inline void apply() | |
239 | { | |
240 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
241 | typedef bg::model::segment<point_type> segment_type; | |
242 | typedef bg::model::linestring<point_type> linestring_type; | |
243 | typedef boost::variant | |
244 | < | |
245 | point_type, segment_type, linestring_type | |
246 | > variant_type; | |
247 | ||
248 | point_type point; | |
249 | bg::read_wkt("POINT(1 3)", point); | |
250 | ||
251 | segment_type seg; | |
252 | bg::read_wkt("LINESTRING(1 1,4 4)", seg); | |
253 | ||
254 | linestring_type linestring; | |
255 | bg::read_wkt("LINESTRING(-1 -1,-1 0,0 0,0 -1,-1 -1)", linestring); | |
256 | ||
257 | variant_type v1, v2; | |
258 | ||
1e59de90 TL |
259 | using variant_cdistance_t = typename bg::comparable_distance_result |
260 | < | |
261 | variant_type, variant_type, bg::default_strategy | |
262 | >::type; | |
263 | BOOST_GEOMETRY_STATIC_ASSERT( | |
264 | (std::is_same<variant_cdistance_t, ExpectedResultType>::value), | |
265 | "Unexpected result type", | |
266 | variant_cdistance_t, ExpectedResultType); | |
267 | ||
268 | using cdistance_t = typename bg::comparable_distance_result | |
269 | < | |
270 | point_type, point_type, bg::default_strategy | |
271 | >::type; | |
272 | BOOST_GEOMETRY_STATIC_ASSERT( | |
273 | (std::is_same<cdistance_t, ExpectedResultType>::value), | |
274 | "Unexpected result type", | |
275 | cdistance_t, ExpectedResultType); | |
7c673cae FG |
276 | |
277 | // Default strategy | |
278 | v1 = point; | |
279 | v2 = point; | |
280 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
281 | bg::comparable_distance(point, point), | |
282 | 0.0001); | |
283 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, point), | |
284 | bg::comparable_distance(point, point), | |
285 | 0.0001); | |
286 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
287 | bg::comparable_distance(point, point), | |
288 | 0.0001); | |
289 | v1 = point; | |
290 | v2 = seg; | |
291 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
292 | bg::comparable_distance(point, seg), | |
293 | 0.0001); | |
294 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, seg), | |
295 | bg::comparable_distance(point, seg), | |
296 | 0.0001); | |
297 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
298 | bg::comparable_distance(point, seg), | |
299 | 0.0001); | |
300 | v1 = point; | |
301 | v2 = linestring; | |
302 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
303 | bg::comparable_distance(point, linestring), | |
304 | 0.0001); | |
305 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, linestring), | |
306 | bg::comparable_distance(point, linestring), | |
307 | 0.0001); | |
308 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
309 | bg::comparable_distance(point, linestring), | |
310 | 0.0001); | |
311 | } | |
312 | }; | |
313 | ||
314 | template <typename T, typename ExpectedResultType = T> | |
315 | struct test_variant_with_strategy | |
316 | { | |
317 | static inline void apply() | |
318 | { | |
319 | typedef bg::strategy::distance::projected_point<T> strategy_type; | |
320 | ||
321 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
322 | typedef bg::model::segment<point_type> segment_type; | |
323 | typedef bg::model::linestring<point_type> linestring_type; | |
324 | typedef bg::model::multi_linestring | |
325 | < | |
326 | linestring_type | |
327 | > multi_linestring_type; | |
328 | typedef boost::variant | |
329 | < | |
330 | segment_type, linestring_type, multi_linestring_type | |
331 | > variant_type; | |
332 | ||
333 | segment_type seg; | |
334 | bg::read_wkt("LINESTRING(1 1,4 4)", seg); | |
335 | ||
336 | linestring_type ls; | |
337 | bg::read_wkt("LINESTRING(-1 -1,-1 0,0 0,0 -1,-1 -1)", ls); | |
338 | ||
339 | multi_linestring_type mls; | |
340 | bg::read_wkt("MULTILINESTRING((10 0,20 0),(30 0,40 0))", mls); | |
341 | ||
342 | variant_type v1, v2; | |
343 | ||
344 | strategy_type strategy; | |
345 | ||
1e59de90 TL |
346 | using variant_cdistance_t = typename bg::comparable_distance_result |
347 | < | |
348 | variant_type, variant_type, strategy_type | |
349 | >::type; | |
350 | BOOST_GEOMETRY_STATIC_ASSERT( | |
351 | (std::is_same<variant_cdistance_t, ExpectedResultType>::value), | |
352 | "Unexpected result type", | |
353 | variant_cdistance_t, ExpectedResultType); | |
354 | ||
355 | using cdistance_t = typename bg::comparable_distance_result | |
356 | < | |
357 | segment_type, linestring_type, strategy_type | |
358 | >::type; | |
359 | BOOST_GEOMETRY_STATIC_ASSERT( | |
360 | (std::is_same<cdistance_t, ExpectedResultType>::value), | |
361 | "Unexpected result type", | |
362 | cdistance_t, ExpectedResultType); | |
7c673cae FG |
363 | |
364 | // Passed strategy | |
365 | v1 = seg; | |
366 | v2 = seg; | |
367 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2, strategy), | |
368 | bg::comparable_distance(seg, seg, strategy), | |
369 | 0.0001); | |
370 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, seg, strategy), | |
371 | bg::comparable_distance(seg, seg, strategy), | |
372 | 0.0001); | |
373 | BOOST_CHECK_CLOSE(bg::comparable_distance(seg, v2, strategy), | |
374 | bg::comparable_distance(seg, seg, strategy), | |
375 | 0.0001); | |
376 | v1 = seg; | |
377 | v2 = ls; | |
378 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2, strategy), | |
379 | bg::comparable_distance(seg, ls, strategy), | |
380 | 0.0001); | |
381 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, ls, strategy), | |
382 | bg::comparable_distance(seg, ls, strategy), | |
383 | 0.0001); | |
384 | BOOST_CHECK_CLOSE(bg::comparable_distance(seg, v2, strategy), | |
385 | bg::comparable_distance(seg, ls, strategy), | |
386 | 0.0001); | |
387 | v1 = seg; | |
388 | v2 = mls; | |
389 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2, strategy), | |
390 | bg::comparable_distance(seg, mls, strategy), | |
391 | 0.0001); | |
392 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, mls, strategy), | |
393 | bg::comparable_distance(seg, mls, strategy), | |
394 | 0.0001); | |
395 | BOOST_CHECK_CLOSE(bg::comparable_distance(seg, v2, strategy), | |
396 | bg::comparable_distance(seg, mls, strategy), | |
397 | 0.0001); | |
398 | v1 = ls; | |
399 | v2 = mls; | |
400 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2, strategy), | |
401 | bg::comparable_distance(ls, mls, strategy), | |
402 | 0.0001); | |
403 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, mls, strategy), | |
404 | bg::comparable_distance(ls, mls, strategy), | |
405 | 0.0001); | |
406 | BOOST_CHECK_CLOSE(bg::comparable_distance(ls, v2, strategy), | |
407 | bg::comparable_distance(ls, mls, strategy), | |
408 | 0.0001); | |
409 | } | |
410 | }; | |
411 | ||
1e59de90 | 412 | template <typename T, bool IsIntergral = std::is_integral<T>::value> |
7c673cae FG |
413 | struct check_result |
414 | { | |
415 | template <typename ExpectedResult> | |
416 | static inline void apply(T const& value, | |
417 | ExpectedResult const& expected_value) | |
418 | { | |
419 | BOOST_CHECK_EQUAL(value, expected_value); | |
420 | } | |
421 | }; | |
422 | ||
423 | template <typename T> | |
424 | struct check_result<T, false> | |
425 | { | |
426 | template <typename ExpectedResult> | |
427 | static inline void apply(T const& value, | |
428 | ExpectedResult const& expected_value) | |
429 | { | |
430 | BOOST_CHECK_CLOSE(value, expected_value, 0.0001); | |
431 | } | |
432 | }; | |
433 | ||
434 | template <typename T> | |
435 | struct test_variant_boxes | |
436 | { | |
437 | static inline void apply() | |
438 | { | |
439 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
440 | typedef bg::model::box<point_type> box_type; | |
441 | typedef boost::variant<box_type> variant_type; | |
442 | ||
443 | box_type box1, box2; | |
444 | bg::read_wkt("BOX(-1 -1,0 0)", box1); | |
445 | bg::read_wkt("BOX(1 1,2 2)", box2); | |
446 | ||
447 | variant_type v1 = box1, v2 = box2; | |
448 | ||
1e59de90 | 449 | typedef typename std::conditional |
7c673cae | 450 | < |
1e59de90 | 451 | std::is_floating_point<T>::value, |
7c673cae FG |
452 | double, |
453 | typename bg::util::detail::default_integral::type | |
454 | >::type expected_result_type; | |
455 | ||
1e59de90 TL |
456 | using variant_cdistance_t = typename bg::comparable_distance_result |
457 | < | |
458 | variant_type, variant_type, bg::default_strategy | |
459 | >::type; | |
460 | BOOST_GEOMETRY_STATIC_ASSERT( | |
461 | (std::is_same<variant_cdistance_t, expected_result_type>::value), | |
462 | "Unexpected result type", | |
463 | variant_cdistance_t, expected_result_type); | |
7c673cae FG |
464 | |
465 | // Default strategy | |
466 | check_result<T>::apply(bg::comparable_distance(v1, v2), | |
467 | bg::comparable_distance(box1, box2)); | |
468 | check_result<T>::apply(bg::comparable_distance(v1, box2), | |
469 | bg::comparable_distance(box1, box2)); | |
470 | check_result<T>::apply(bg::comparable_distance(box1, v2), | |
471 | bg::comparable_distance(box1, box2)); | |
472 | } | |
473 | }; | |
474 | ||
475 | ||
476 | int test_main(int, char* []) | |
477 | { | |
478 | test_double_result_from_integer<int>(); | |
1e59de90 | 479 | test_double_result_from_integer<long long>(); |
7c673cae FG |
480 | |
481 | test_all<bg::model::d2::point_xy<float> >(); | |
482 | test_all<bg::model::d2::point_xy<double> >(); | |
483 | ||
7c673cae FG |
484 | // test variant support |
485 | test_variant_different_default_strategy<double>::apply(); | |
486 | ||
487 | test_variant_same_default_strategy<double>::apply(); | |
488 | test_variant_same_default_strategy<int>::apply(); | |
489 | test_variant_same_default_strategy<long>::apply(); | |
490 | ||
491 | test_variant_with_strategy<double>::apply(); | |
492 | test_variant_with_strategy<float>::apply(); | |
493 | test_variant_with_strategy<long double>::apply(); | |
494 | test_variant_with_strategy<int, double>::apply(); | |
7c673cae FG |
495 | |
496 | test_variant_boxes<double>::apply(); | |
497 | test_variant_boxes<int>::apply(); | |
498 | test_variant_boxes<long>::apply(); | |
499 | ||
500 | return 0; | |
501 | } |