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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 | ||
b32b8144 FG |
9 | // This file was modified by Oracle on 2014, 2017. |
10 | // Modifications copyright (c) 2014-2017, Oracle and/or its affiliates. | |
7c673cae FG |
11 | |
12 | // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle | |
b32b8144 | 13 | // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle |
7c673cae FG |
14 | |
15 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library | |
16 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. | |
17 | ||
18 | // Use, modification and distribution is subject to the Boost Software License, | |
19 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
20 | // http://www.boost.org/LICENSE_1_0.txt) | |
21 | ||
22 | ||
23 | #include <sstream> | |
24 | ||
25 | #include <boost/mpl/if.hpp> | |
26 | #include <boost/type_traits/is_integral.hpp> | |
27 | #include <boost/type_traits/is_same.hpp> | |
28 | #include <geometry_test_common.hpp> | |
29 | ||
30 | #include <boost/geometry/algorithms/comparable_distance.hpp> | |
b32b8144 | 31 | #include <boost/geometry/algorithms/make.hpp> |
7c673cae FG |
32 | |
33 | #include <boost/geometry/geometries/geometries.hpp> | |
34 | #include <boost/geometry/geometries/point_xy.hpp> | |
35 | #include <boost/geometry/io/wkt/read.hpp> | |
36 | #include <boost/geometry/strategies/strategies.hpp> | |
37 | ||
38 | template <typename P> | |
39 | void test_distance_result() | |
40 | { | |
41 | typedef typename bg::default_distance_result<P, P>::type distance_type; | |
42 | ||
43 | P p1 = bg::make<P>(0, 0); | |
44 | P p2 = bg::make<P>(3, 0); | |
45 | P p3 = bg::make<P>(0, 4); | |
46 | ||
47 | distance_type dr12 = bg::comparable_distance(p1, p2); | |
48 | distance_type dr13 = bg::comparable_distance(p1, p3); | |
49 | distance_type dr23 = bg::comparable_distance(p2, p3); | |
50 | ||
51 | BOOST_CHECK_CLOSE(dr12, 9.000, 0.001); | |
52 | BOOST_CHECK_CLOSE(dr13, 16.000, 0.001); | |
53 | BOOST_CHECK_CLOSE(dr23, 25.000, 0.001); | |
54 | ||
55 | } | |
56 | ||
57 | template <typename P> | |
58 | void test_distance_point() | |
59 | { | |
60 | P p1; | |
61 | bg::set<0>(p1, 1); | |
62 | bg::set<1>(p1, 1); | |
63 | ||
64 | P p2; | |
65 | bg::set<0>(p2, 2); | |
66 | bg::set<1>(p2, 2); | |
67 | ||
68 | typename bg::coordinate_type<P>::type d = bg::comparable_distance(p1, p2); | |
69 | BOOST_CHECK_CLOSE(d, 2.0, 0.001); | |
70 | } | |
71 | ||
72 | template <typename P> | |
73 | void test_distance_segment() | |
74 | { | |
75 | typedef typename bg::coordinate_type<P>::type coordinate_type; | |
76 | ||
77 | P s1 = bg::make<P>(2, 2); | |
78 | P s2 = bg::make<P>(3, 3); | |
79 | ||
80 | // Check points left, right, projected-left, projected-right, on segment | |
81 | P p1 = bg::make<P>(0, 0); | |
82 | P p2 = bg::make<P>(4, 4); | |
83 | P p3 = bg::make<P>(2.4, 2.6); | |
84 | P p4 = bg::make<P>(2.6, 2.4); | |
85 | P p5 = bg::make<P>(2.5, 2.5); | |
86 | ||
87 | bg::model::referring_segment<P const> const seg(s1, s2); | |
88 | ||
89 | coordinate_type d1 = bg::comparable_distance(p1, seg); BOOST_CHECK_CLOSE(d1, 8.0, 0.001); | |
90 | coordinate_type d2 = bg::comparable_distance(p2, seg); BOOST_CHECK_CLOSE(d2, 2.0, 0.001); | |
91 | coordinate_type d3 = bg::comparable_distance(p3, seg); BOOST_CHECK_CLOSE(d3, 0.02, 0.001); | |
92 | coordinate_type d4 = bg::comparable_distance(p4, seg); BOOST_CHECK_CLOSE(d4, 0.02, 0.001); | |
93 | coordinate_type d5 = bg::comparable_distance(p5, seg); BOOST_CHECK_CLOSE(d5, 0.0, 0.001); | |
94 | ||
95 | // Reverse case | |
96 | coordinate_type dr1 = bg::comparable_distance(seg, p1); BOOST_CHECK_CLOSE(dr1, d1, 0.001); | |
97 | coordinate_type dr2 = bg::comparable_distance(seg, p2); BOOST_CHECK_CLOSE(dr2, d2, 0.001); | |
98 | } | |
99 | ||
100 | template <typename P> | |
101 | void test_distance_linestring() | |
102 | { | |
103 | bg::model::linestring<P> points; | |
104 | points.push_back(bg::make<P>(1, 1)); | |
105 | points.push_back(bg::make<P>(3, 3)); | |
106 | ||
107 | P p = bg::make<P>(2, 1); | |
108 | ||
109 | typename bg::coordinate_type<P>::type d = bg::comparable_distance(p, points); | |
110 | BOOST_CHECK_CLOSE(d, 0.5, 0.001); | |
111 | ||
112 | p = bg::make<P>(5, 5); | |
113 | d = bg::comparable_distance(p, points); | |
114 | BOOST_CHECK_CLOSE(d, 8.0, 0.001); | |
115 | ||
116 | ||
117 | bg::model::linestring<P> line; | |
118 | line.push_back(bg::make<P>(1,1)); | |
119 | line.push_back(bg::make<P>(2,2)); | |
120 | line.push_back(bg::make<P>(3,3)); | |
121 | ||
122 | p = bg::make<P>(5, 5); | |
123 | ||
124 | d = bg::comparable_distance(p, line); | |
125 | BOOST_CHECK_CLOSE(d, 8.0, 0.001); | |
126 | ||
127 | // Reverse case | |
128 | d = bg::comparable_distance(line, p); | |
129 | BOOST_CHECK_CLOSE(d, 8.0, 0.001); | |
130 | } | |
131 | ||
132 | template <typename P> | |
133 | void test_all() | |
134 | { | |
135 | test_distance_result<P>(); | |
136 | test_distance_point<P>(); | |
137 | test_distance_segment<P>(); | |
138 | test_distance_linestring<P>(); | |
139 | } | |
140 | ||
141 | template <typename T> | |
142 | void test_double_result_from_integer() | |
143 | { | |
144 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
145 | ||
146 | point_type point; | |
147 | ||
148 | // Check linestring | |
149 | bg::model::linestring<point_type> linestring; | |
150 | bg::read_wkt("POINT(2 2)", point); | |
151 | bg::read_wkt("LINESTRING(4 1,1 4)", linestring); | |
152 | ||
153 | double normal_distance = bg::distance(point, linestring); | |
154 | double comparable_distance = bg::comparable_distance(point, linestring); | |
155 | ||
156 | BOOST_CHECK_CLOSE(normal_distance, std::sqrt(0.5), 0.001); | |
157 | BOOST_CHECK_CLOSE(comparable_distance, 0.5, 0.001); | |
158 | ||
159 | // Check polygon | |
160 | bg::model::polygon<point_type> polygon; | |
161 | bg::read_wkt("POLYGON((0 0,1 9,8 1,0 0),(1 1,4 1,1 4,1 1))", polygon); | |
162 | ||
163 | normal_distance = bg::distance(point, polygon); | |
164 | comparable_distance = bg::comparable_distance(point, polygon); | |
165 | ||
166 | BOOST_CHECK_CLOSE(normal_distance, std::sqrt(0.5), 0.001); | |
167 | BOOST_CHECK_CLOSE(comparable_distance, 0.5, 0.001); | |
168 | } | |
169 | ||
170 | template <typename T> | |
171 | struct test_variant_different_default_strategy | |
172 | { | |
173 | static inline void apply() | |
174 | { | |
175 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
176 | typedef bg::model::segment<point_type> segment_type; | |
177 | typedef bg::model::box<point_type> box_type; | |
178 | typedef boost::variant<point_type, segment_type, box_type> variant_type; | |
179 | ||
180 | point_type point; | |
181 | bg::read_wkt("POINT(1 3)", point); | |
182 | ||
183 | segment_type seg; | |
184 | bg::read_wkt("LINESTRING(1 1,4 4)", seg); | |
185 | ||
186 | box_type box; | |
187 | bg::read_wkt("BOX(-1 -1,0 0)", box); | |
188 | ||
189 | variant_type v1, v2; | |
190 | ||
191 | BOOST_MPL_ASSERT(( | |
192 | boost::is_same | |
193 | < | |
194 | typename bg::comparable_distance_result | |
195 | < | |
196 | variant_type, variant_type, bg::default_strategy | |
197 | >::type, | |
198 | typename bg::comparable_distance_result | |
199 | < | |
200 | point_type, point_type, bg::default_strategy | |
201 | >::type | |
202 | > | |
203 | )); | |
204 | ||
205 | // Default strategy | |
206 | v1 = point; | |
207 | v2 = point; | |
208 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
209 | bg::comparable_distance(point, point), | |
210 | 0.0001); | |
211 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, point), | |
212 | bg::comparable_distance(point, point), | |
213 | 0.0001); | |
214 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
215 | bg::comparable_distance(point, point), | |
216 | 0.0001); | |
217 | v1 = point; | |
218 | v2 = seg; | |
219 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
220 | bg::comparable_distance(point, seg), | |
221 | 0.0001); | |
222 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, seg), | |
223 | bg::comparable_distance(point, seg), | |
224 | 0.0001); | |
225 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
226 | bg::comparable_distance(point, seg), 0.0001); | |
227 | v1 = point; | |
228 | v2 = box; | |
229 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
230 | bg::comparable_distance(point, box), | |
231 | 0.0001); | |
232 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, box), | |
233 | bg::comparable_distance(point, box), | |
234 | 0.0001); | |
235 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
236 | bg::comparable_distance(point, box), 0.0001); | |
237 | } | |
238 | }; | |
239 | ||
240 | template <typename T, typename ExpectedResultType = double> | |
241 | struct test_variant_same_default_strategy | |
242 | { | |
243 | static inline void apply() | |
244 | { | |
245 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
246 | typedef bg::model::segment<point_type> segment_type; | |
247 | typedef bg::model::linestring<point_type> linestring_type; | |
248 | typedef boost::variant | |
249 | < | |
250 | point_type, segment_type, linestring_type | |
251 | > variant_type; | |
252 | ||
253 | point_type point; | |
254 | bg::read_wkt("POINT(1 3)", point); | |
255 | ||
256 | segment_type seg; | |
257 | bg::read_wkt("LINESTRING(1 1,4 4)", seg); | |
258 | ||
259 | linestring_type linestring; | |
260 | bg::read_wkt("LINESTRING(-1 -1,-1 0,0 0,0 -1,-1 -1)", linestring); | |
261 | ||
262 | variant_type v1, v2; | |
263 | ||
264 | BOOST_MPL_ASSERT(( | |
265 | boost::is_same | |
266 | < | |
267 | typename bg::comparable_distance_result | |
268 | < | |
269 | variant_type, variant_type, bg::default_strategy | |
270 | >::type, | |
271 | ExpectedResultType | |
272 | > | |
273 | )); | |
274 | ||
275 | BOOST_MPL_ASSERT(( | |
276 | boost::is_same | |
277 | < | |
278 | typename bg::comparable_distance_result | |
279 | < | |
280 | point_type, point_type, bg::default_strategy | |
281 | >::type, | |
282 | ExpectedResultType | |
283 | > | |
284 | )); | |
285 | ||
286 | // Default strategy | |
287 | v1 = point; | |
288 | v2 = point; | |
289 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
290 | bg::comparable_distance(point, point), | |
291 | 0.0001); | |
292 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, point), | |
293 | bg::comparable_distance(point, point), | |
294 | 0.0001); | |
295 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
296 | bg::comparable_distance(point, point), | |
297 | 0.0001); | |
298 | v1 = point; | |
299 | v2 = seg; | |
300 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
301 | bg::comparable_distance(point, seg), | |
302 | 0.0001); | |
303 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, seg), | |
304 | bg::comparable_distance(point, seg), | |
305 | 0.0001); | |
306 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
307 | bg::comparable_distance(point, seg), | |
308 | 0.0001); | |
309 | v1 = point; | |
310 | v2 = linestring; | |
311 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2), | |
312 | bg::comparable_distance(point, linestring), | |
313 | 0.0001); | |
314 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, linestring), | |
315 | bg::comparable_distance(point, linestring), | |
316 | 0.0001); | |
317 | BOOST_CHECK_CLOSE(bg::comparable_distance(point, v2), | |
318 | bg::comparable_distance(point, linestring), | |
319 | 0.0001); | |
320 | } | |
321 | }; | |
322 | ||
323 | template <typename T, typename ExpectedResultType = T> | |
324 | struct test_variant_with_strategy | |
325 | { | |
326 | static inline void apply() | |
327 | { | |
328 | typedef bg::strategy::distance::projected_point<T> strategy_type; | |
329 | ||
330 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
331 | typedef bg::model::segment<point_type> segment_type; | |
332 | typedef bg::model::linestring<point_type> linestring_type; | |
333 | typedef bg::model::multi_linestring | |
334 | < | |
335 | linestring_type | |
336 | > multi_linestring_type; | |
337 | typedef boost::variant | |
338 | < | |
339 | segment_type, linestring_type, multi_linestring_type | |
340 | > variant_type; | |
341 | ||
342 | segment_type seg; | |
343 | bg::read_wkt("LINESTRING(1 1,4 4)", seg); | |
344 | ||
345 | linestring_type ls; | |
346 | bg::read_wkt("LINESTRING(-1 -1,-1 0,0 0,0 -1,-1 -1)", ls); | |
347 | ||
348 | multi_linestring_type mls; | |
349 | bg::read_wkt("MULTILINESTRING((10 0,20 0),(30 0,40 0))", mls); | |
350 | ||
351 | variant_type v1, v2; | |
352 | ||
353 | strategy_type strategy; | |
354 | ||
355 | BOOST_MPL_ASSERT(( | |
356 | boost::is_same | |
357 | < | |
358 | typename bg::comparable_distance_result | |
359 | < | |
360 | variant_type, variant_type, strategy_type | |
361 | >::type, | |
362 | ExpectedResultType | |
363 | > | |
364 | )); | |
365 | ||
366 | BOOST_MPL_ASSERT(( | |
367 | boost::is_same | |
368 | < | |
369 | typename bg::comparable_distance_result | |
370 | < | |
371 | segment_type, linestring_type, strategy_type | |
372 | >::type, | |
373 | ExpectedResultType | |
374 | > | |
375 | )); | |
376 | ||
377 | // Passed strategy | |
378 | v1 = seg; | |
379 | v2 = seg; | |
380 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2, strategy), | |
381 | bg::comparable_distance(seg, seg, strategy), | |
382 | 0.0001); | |
383 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, seg, strategy), | |
384 | bg::comparable_distance(seg, seg, strategy), | |
385 | 0.0001); | |
386 | BOOST_CHECK_CLOSE(bg::comparable_distance(seg, v2, strategy), | |
387 | bg::comparable_distance(seg, seg, strategy), | |
388 | 0.0001); | |
389 | v1 = seg; | |
390 | v2 = ls; | |
391 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2, strategy), | |
392 | bg::comparable_distance(seg, ls, strategy), | |
393 | 0.0001); | |
394 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, ls, strategy), | |
395 | bg::comparable_distance(seg, ls, strategy), | |
396 | 0.0001); | |
397 | BOOST_CHECK_CLOSE(bg::comparable_distance(seg, v2, strategy), | |
398 | bg::comparable_distance(seg, ls, strategy), | |
399 | 0.0001); | |
400 | v1 = seg; | |
401 | v2 = mls; | |
402 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2, strategy), | |
403 | bg::comparable_distance(seg, mls, strategy), | |
404 | 0.0001); | |
405 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, mls, strategy), | |
406 | bg::comparable_distance(seg, mls, strategy), | |
407 | 0.0001); | |
408 | BOOST_CHECK_CLOSE(bg::comparable_distance(seg, v2, strategy), | |
409 | bg::comparable_distance(seg, mls, strategy), | |
410 | 0.0001); | |
411 | v1 = ls; | |
412 | v2 = mls; | |
413 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, v2, strategy), | |
414 | bg::comparable_distance(ls, mls, strategy), | |
415 | 0.0001); | |
416 | BOOST_CHECK_CLOSE(bg::comparable_distance(v1, mls, strategy), | |
417 | bg::comparable_distance(ls, mls, strategy), | |
418 | 0.0001); | |
419 | BOOST_CHECK_CLOSE(bg::comparable_distance(ls, v2, strategy), | |
420 | bg::comparable_distance(ls, mls, strategy), | |
421 | 0.0001); | |
422 | } | |
423 | }; | |
424 | ||
425 | template <typename T, bool IsIntergral = boost::is_integral<T>::value> | |
426 | struct check_result | |
427 | { | |
428 | template <typename ExpectedResult> | |
429 | static inline void apply(T const& value, | |
430 | ExpectedResult const& expected_value) | |
431 | { | |
432 | BOOST_CHECK_EQUAL(value, expected_value); | |
433 | } | |
434 | }; | |
435 | ||
436 | template <typename T> | |
437 | struct check_result<T, false> | |
438 | { | |
439 | template <typename ExpectedResult> | |
440 | static inline void apply(T const& value, | |
441 | ExpectedResult const& expected_value) | |
442 | { | |
443 | BOOST_CHECK_CLOSE(value, expected_value, 0.0001); | |
444 | } | |
445 | }; | |
446 | ||
447 | template <typename T> | |
448 | struct test_variant_boxes | |
449 | { | |
450 | static inline void apply() | |
451 | { | |
452 | typedef bg::model::point<T, 2, bg::cs::cartesian> point_type; | |
453 | typedef bg::model::box<point_type> box_type; | |
454 | typedef boost::variant<box_type> variant_type; | |
455 | ||
456 | box_type box1, box2; | |
457 | bg::read_wkt("BOX(-1 -1,0 0)", box1); | |
458 | bg::read_wkt("BOX(1 1,2 2)", box2); | |
459 | ||
460 | variant_type v1 = box1, v2 = box2; | |
461 | ||
462 | typedef typename boost::mpl::if_c | |
463 | < | |
464 | boost::is_float<T>::value, | |
465 | double, | |
466 | typename bg::util::detail::default_integral::type | |
467 | >::type expected_result_type; | |
468 | ||
469 | BOOST_MPL_ASSERT(( | |
470 | boost::is_same | |
471 | < | |
472 | typename bg::comparable_distance_result | |
473 | < | |
474 | variant_type, variant_type, bg::default_strategy | |
475 | >::type, | |
476 | expected_result_type | |
477 | > | |
478 | )); | |
479 | ||
480 | // Default strategy | |
481 | check_result<T>::apply(bg::comparable_distance(v1, v2), | |
482 | bg::comparable_distance(box1, box2)); | |
483 | check_result<T>::apply(bg::comparable_distance(v1, box2), | |
484 | bg::comparable_distance(box1, box2)); | |
485 | check_result<T>::apply(bg::comparable_distance(box1, v2), | |
486 | bg::comparable_distance(box1, box2)); | |
487 | } | |
488 | }; | |
489 | ||
490 | ||
491 | int test_main(int, char* []) | |
492 | { | |
493 | test_double_result_from_integer<int>(); | |
494 | test_double_result_from_integer<boost::long_long_type>(); | |
495 | ||
496 | test_all<bg::model::d2::point_xy<float> >(); | |
497 | test_all<bg::model::d2::point_xy<double> >(); | |
498 | ||
7c673cae FG |
499 | // test variant support |
500 | test_variant_different_default_strategy<double>::apply(); | |
501 | ||
502 | test_variant_same_default_strategy<double>::apply(); | |
503 | test_variant_same_default_strategy<int>::apply(); | |
504 | test_variant_same_default_strategy<long>::apply(); | |
505 | ||
506 | test_variant_with_strategy<double>::apply(); | |
507 | test_variant_with_strategy<float>::apply(); | |
508 | test_variant_with_strategy<long double>::apply(); | |
509 | test_variant_with_strategy<int, double>::apply(); | |
7c673cae FG |
510 | |
511 | test_variant_boxes<double>::apply(); | |
512 | test_variant_boxes<int>::apply(); | |
513 | test_variant_boxes<long>::apply(); | |
514 | ||
515 | return 0; | |
516 | } |