1 // Boost.Geometry (aka GGL, Generic Geometry Library)
2 // Unit Test
3 
4 // Copyright (c) 2014-2018, Oracle and/or its affiliates.
5 
6 // Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
7 // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
8 
9 // Licensed under the Boost Software License version 1.0.
10 // http://www.boost.org/users/license.html
11 
12 #include <iostream>
13 
14 #ifndef BOOST_TEST_MODULE
15 #define BOOST_TEST_MODULE test_distance_cartesian_linear_areal
16 #endif
17 
18 #include <boost/test/included/unit_test.hpp>
19 
20 #include "test_distance_common.hpp"
21 
22 typedef bg::model::point<double,2,bg::cs::cartesian>  point_type;
23 typedef bg::model::point<int,2,bg::cs::cartesian>     int_point_type;
24 typedef bg::model::segment<point_type>                segment_type;
25 typedef bg::model::segment<int_point_type>            int_segment_type;
26 typedef bg::model::linestring<point_type>             linestring_type;
27 typedef bg::model::multi_linestring<linestring_type>  multi_linestring_type;
28 typedef bg::model::polygon<point_type, false>         polygon_type;
29 typedef bg::model::polygon<point_type, false, false>  open_polygon_type;
30 typedef bg::model::multi_polygon<polygon_type>        multi_polygon_type;
31 typedef bg::model::multi_polygon<open_polygon_type>   open_multipolygon_type;
32 typedef bg::model::ring<point_type, false>            ring_type;
33 typedef bg::model::box<point_type>                    box_type;
34 typedef bg::model::box<int_point_type>                int_box_type;
35 
36 namespace services = bg::strategy::distance::services;
37 typedef bg::default_distance_result<point_type>::type return_type;
38 
39 typedef bg::strategy::distance::pythagoras<> point_point_strategy;
40 typedef bg::strategy::distance::projected_point<> point_segment_strategy;
41 typedef bg::strategy::distance::cartesian_segment_box<> segment_box_strategy;
42 
43 //===========================================================================
44 
45 template <typename Strategy>
test_distance_segment_polygon(Strategy const & strategy)46 void test_distance_segment_polygon(Strategy const& strategy)
47 {
48 #ifdef BOOST_GEOMETRY_TEST_DEBUG
49     std::cout << std::endl;
50     std::cout << "segment/polygon distance tests" << std::endl;
51 #endif
52     typedef test_distance_of_geometries<segment_type, polygon_type> tester;
53 
54     tester::apply("segment(-1 20,1 20)",
55                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
56                   10, 100, strategy);
57 
58     tester::apply("segment(1 20,2 40)",
59                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
60                   10, 100, strategy);
61 
62     tester::apply("segment(-1 20,-1 5)",
63                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
64                   0, 0, strategy);
65 
66     tester::apply("segment(-1 20,-1 -20)",
67                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
68                   0, 0, strategy);
69 
70     tester::apply("segment(0 0,1 1)",
71                   "polygon((2 2))",
72                   sqrt(2.0), 2, strategy);
73 }
74 
75 //===========================================================================
76 
77 template <typename Strategy>
test_distance_linestring_polygon(Strategy const & strategy)78 void test_distance_linestring_polygon(Strategy const& strategy)
79 {
80 #ifdef BOOST_GEOMETRY_TEST_DEBUG
81     std::cout << std::endl;
82     std::cout << "linestring/polygon distance tests" << std::endl;
83 #endif
84     typedef test_distance_of_geometries<linestring_type, polygon_type> tester;
85 
86     tester::apply("linestring(-1 20,1 20,1 30)",
87                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
88                   10, 100, strategy);
89 
90     tester::apply("linestring(-5 1,-2 1)",
91                   "polygon((0 0,10 0,10 10,0 10,0 0))",
92                   2, 4, strategy);
93 
94     tester::apply("linestring(-1 20,1 20,1 5)",
95                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
96                   0, 0, strategy);
97 
98     tester::apply("linestring(-1 20,1 20,1 -20)",
99                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
100                   0, 0, strategy);
101 
102     tester::apply("linestring(-2 1)",
103                   "polygon((0 0,10 0,10 10,0 10,0 0))",
104                   2, 4, strategy);
105 
106     tester::apply("linestring(-5 1,-2 1)",
107                   "polygon((0 0))",
108                   sqrt(5.0), 5, strategy);
109 }
110 
111 //===========================================================================
112 
113 template <typename Strategy>
test_distance_linestring_open_polygon(Strategy const & strategy)114 void test_distance_linestring_open_polygon(Strategy const& strategy)
115 {
116 #ifdef BOOST_GEOMETRY_TEST_DEBUG
117     std::cout << std::endl;
118     std::cout << "linestring/open polygon distance tests" << std::endl;
119 #endif
120     typedef test_distance_of_geometries
121         <
122             linestring_type, open_polygon_type
123         > tester;
124 
125     tester::apply("linestring(-5 1,-2 1)",
126                   "polygon((0 0,10 0,10 10,0 10))",
127                   2, 4, strategy);
128 }
129 
130 //===========================================================================
131 
132 template <typename Strategy>
test_distance_multilinestring_polygon(Strategy const & strategy)133 void test_distance_multilinestring_polygon(Strategy const& strategy)
134 {
135 #ifdef BOOST_GEOMETRY_TEST_DEBUG
136     std::cout << std::endl;
137     std::cout << "multilinestring/polygon distance tests" << std::endl;
138 #endif
139     typedef test_distance_of_geometries
140         <
141             multi_linestring_type, polygon_type
142         > tester;
143 
144     tester::apply("multilinestring((-100 -100,-90 -90),(-1 20,1 20,1 30))",
145                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
146                   10, 100, strategy);
147 
148     tester::apply("multilinestring((-1 20,1 20,1 30),(-1 20,1 20,1 5))",
149                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
150                   0, 0, strategy);
151 
152     tester::apply("multilinestring((-1 20,1 20,1 30),(-1 20,1 20,1 -20))",
153                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
154                   0, 0, strategy);
155 
156     tester::apply("multilinestring((-100 -100,-90 -90),(1 20))",
157                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
158                   10, 100, strategy);
159 
160     tester::apply("multilinestring((-100 -100,-90 -90),(-1 20,1 20,1 30))",
161                   "polygon((-110 -110))",
162                   sqrt(200.0), 200, strategy);
163 }
164 
165 //===========================================================================
166 
167 template <typename Strategy>
test_distance_segment_multipolygon(Strategy const & strategy)168 void test_distance_segment_multipolygon(Strategy const& strategy)
169 {
170 #ifdef BOOST_GEOMETRY_TEST_DEBUG
171     std::cout << std::endl;
172     std::cout << "segment/multipolygon distance tests" << std::endl;
173 #endif
174     typedef test_distance_of_geometries
175         <
176             segment_type, multi_polygon_type
177         > tester;
178 
179     tester::apply("segment(-1 20,1 20)",
180                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
181                    ((0 22,-1 30, 2 40,0 22)))",
182                   2, 4, strategy);
183 
184     tester::apply("segment(12 0,14 0)",
185                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
186                    ((20 -1,21 2,30 -10,20 -1)))",
187                   2, 4, strategy);
188 
189     tester::apply("segment(12 0,20.5 0.5)",
190                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
191                    ((20 -1,21 2,30 -10,20 -1)))",
192                   0, 0, strategy);
193 
194     tester::apply("segment(12 0,50 0)",
195                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
196                    ((20 -1,21 2,30 -10,20 -1)))",
197                   0, 0, strategy);
198 }
199 
200 //===========================================================================
201 
202 template <typename Strategy>
test_distance_linestring_multipolygon(Strategy const & strategy)203 void test_distance_linestring_multipolygon(Strategy const& strategy)
204 {
205 #ifdef BOOST_GEOMETRY_TEST_DEBUG
206     std::cout << std::endl;
207     std::cout << "linestring/multipolygon distance tests" << std::endl;
208 #endif
209     typedef test_distance_of_geometries
210         <
211             linestring_type, multi_polygon_type
212         > tester;
213 
214     tester::apply("linestring(-1 20,1 20)",
215                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
216                    ((0 22,-1 30, 2 40,0 22)))",
217                   2, 4, strategy);
218 
219     tester::apply("linestring(12 0,14 0)",
220                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
221                    ((20 -1,21 2,30 -10,20 -1)))",
222                   2, 4, strategy);
223 
224     tester::apply("linestring(12 0,20.5 0.5)",
225                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
226                    ((20 -1,21 2,30 -10,20 -1)))",
227                   0, 0, strategy);
228 
229     tester::apply("linestring(12 0,50 0)",
230                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
231                    ((20 -1,21 2,30 -10,20 -1)))",
232                   0, 0, strategy);
233 }
234 
235 //===========================================================================
236 
237 template <typename Strategy>
test_distance_linestring_open_multipolygon(Strategy const & strategy)238 void test_distance_linestring_open_multipolygon(Strategy const& strategy)
239 {
240 #ifdef BOOST_GEOMETRY_TEST_DEBUG
241     std::cout << std::endl;
242     std::cout << "linestring/open multipolygon distance tests" << std::endl;
243 #endif
244     typedef test_distance_of_geometries
245         <
246             linestring_type, open_multipolygon_type
247         > tester;
248 
249     tester::apply("linestring(-5 1,-2 1)",
250                   "multipolygon(((0 0,10 0,10 10,0 10)))",
251                   2, 4, strategy);
252 
253     tester::apply("linestring(-5 1,-3 1)",
254                   "multipolygon(((20 20,21 20,21 21,20 21)),((0 0,10 0,10 10,0 10)))",
255                   3, 9, strategy);
256 }
257 
258 //===========================================================================
259 
260 template <typename Strategy>
test_distance_multilinestring_multipolygon(Strategy const & strategy)261 void test_distance_multilinestring_multipolygon(Strategy const& strategy)
262 {
263 #ifdef BOOST_GEOMETRY_TEST_DEBUG
264     std::cout << std::endl;
265     std::cout << "multilinestring/multipolygon distance tests" << std::endl;
266 #endif
267     typedef test_distance_of_geometries
268         <
269             multi_linestring_type, multi_polygon_type
270         > tester;
271 
272     tester::apply("multilinestring((12 0,14 0),(19 0,19.9 -1))",
273                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
274                    ((20 -1,21 2,30 -10)))",
275                   0.1, 0.01, strategy);
276 
277     tester::apply("multilinestring((19 0,19.9 -1),(12 0,20.5 0.5))",
278                   "multipolygon(((-10 -10,10 -10,10 10,-10 10,-10 -10)),\
279                    ((20 -1,21 2,30 -10,20 -1)))",
280                   0, 0, strategy);
281 }
282 
283 //===========================================================================
284 
285 template <typename Strategy>
test_distance_segment_ring(Strategy const & strategy)286 void test_distance_segment_ring(Strategy const& strategy)
287 {
288 #ifdef BOOST_GEOMETRY_TEST_DEBUG
289     std::cout << std::endl;
290     std::cout << "segment/ring distance tests" << std::endl;
291 #endif
292     typedef test_distance_of_geometries<segment_type, ring_type> tester;
293 
294     tester::apply("segment(-1 20,1 20)",
295                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
296                   10, 100, strategy);
297 
298     tester::apply("segment(1 20,2 40)",
299                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
300                   10, 100, strategy);
301 
302     tester::apply("segment(-1 20,-1 5)",
303                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
304                   0, 0, strategy);
305 
306     tester::apply("segment(-1 20,-1 -20)",
307                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
308                   0, 0, strategy);
309 }
310 
311 //===========================================================================
312 
313 template <typename Strategy>
test_distance_linestring_ring(Strategy const & strategy)314 void test_distance_linestring_ring(Strategy const& strategy)
315 {
316 #ifdef BOOST_GEOMETRY_TEST_DEBUG
317     std::cout << std::endl;
318     std::cout << "linestring/ring distance tests" << std::endl;
319 #endif
320     typedef test_distance_of_geometries<linestring_type, ring_type> tester;
321 
322     tester::apply("linestring(-1 20,1 20,1 30)",
323                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
324                   10, 100, strategy);
325 
326     tester::apply("linestring(-1 20,1 20,1 5)",
327                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
328                   0, 0, strategy);
329 
330     tester::apply("linestring(-1 20,1 20,1 -20)",
331                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
332                   0, 0, strategy);
333 }
334 
335 //===========================================================================
336 
337 template <typename Strategy>
test_distance_multilinestring_ring(Strategy const & strategy)338 void test_distance_multilinestring_ring(Strategy const& strategy)
339 {
340 #ifdef BOOST_GEOMETRY_TEST_DEBUG
341     std::cout << std::endl;
342     std::cout << "multilinestring/ring distance tests" << std::endl;
343 #endif
344     typedef test_distance_of_geometries
345         <
346             multi_linestring_type, ring_type
347         > tester;
348 
349     tester::apply("multilinestring((-100 -100,-90 -90),(-1 20,1 20,1 30))",
350                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
351                   10, 100, strategy);
352 
353     tester::apply("multilinestring((-1 20,1 20,1 30),(-1 20,1 20,1 5))",
354                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
355                   0, 0, strategy);
356 
357     tester::apply("multilinestring((-1 20,1 20,1 30),(-1 20,1 20,1 -20))",
358                   "polygon((-10 -10,10 -10,10 10,-10 10,-10 -10))",
359                   0, 0, strategy);
360 }
361 
362 //===========================================================================
363 
364 template <typename Strategy>
test_distance_segment_box(Strategy const & strategy)365 void test_distance_segment_box(Strategy const& strategy)
366 {
367 #ifdef BOOST_GEOMETRY_TEST_DEBUG
368     std::cout << std::endl;
369     std::cout << "2D segment/box distance tests" << std::endl;
370 #endif
371     typedef int_box_type B;
372     typedef segment_type S;
373     typedef int_segment_type IS;
374 
375     typedef test_distance_of_geometries<B, S> tester;
376     typedef test_distance_of_geometries<B, IS> itester;
377 
378     // 1st example by Adam Wulkiewicz
379     tester::apply("BOX(5 51,42 96)",
380                   "SEGMENT(6.6799994 95.260002,35.119999 56.340004)",
381                   0, 0, strategy);
382 
383     // 2nd example by Adam Wulkiewicz
384     tester::apply("BOX(51 55,94 100)",
385                   "SEGMENT(92.439995 50.130001,59.959999 80.870003)",
386                   0, 0, strategy);
387 
388     // segments that intersect the box
389     tester::apply("box(0 0,1 1)",
390                   "segment(-1 0.5,0.5 0.75)",
391                   0, 0, strategy);
392     tester::apply("box(0 0,1 1)",
393                   "segment(-1 0.5,1.5 0.75)",
394                   0, 0, strategy);
395     tester::apply("box(0 0,1 1)",
396                   "segment(0.5 -1,0.5 2)",
397                   0, 0, strategy);
398     tester::apply("box(0 0,1 1)",
399                   "segment(1 1,1.5 0.75)",
400                   0, 0, strategy);
401     tester::apply("box(0 0,1 1)",
402                   "segment(2 0,0 2)",
403                   0, 0, strategy);
404 
405     // segment that has closest point on box boundary
406     tester::apply("box(0 0,1 1)",
407                   "segment(4 0.5,5 0.75)",
408                   3, 9, strategy);
409 
410     // segment that has closest point on box corner
411     tester::apply("box(0 0,1 1)",
412                   "segment(4 0,0 4)",
413                   sqrt(2.0), 2, strategy);
414     itester::apply("box(0 0,1 1)",
415                    "segment(-4 0,0 -4)",
416                    sqrt(8.0), 8, strategy);
417     itester::apply("box(0 0,1 1)",
418                    "segment(-8 4,4 -8)",
419                    sqrt(8.0), 8, strategy);
420     tester::apply("box(0 0,1 1)",
421                   "segment(-4 0,0 4)",
422                   1.5 * sqrt(2.0), 4.5, strategy);
423     tester::apply("box(0 0,1 1)",
424                   "segment(-4 0,1 5)",
425                   1.5 * sqrt(2.0), 4.5, strategy);
426     itester::apply("box(0 0,1 1)",
427                    "segment(0 -2,3 1)",
428                    0.5 * sqrt(2.0), 0.5, strategy);
429     itester::apply("box(0 0,1 1)",
430                    "segment(0 -2,2 2)",
431                    0, 0, strategy);
432 
433     // horizontal segments
434     itester::apply("box(0 0,1 1)",
435                    "segment(-2 -1,-1 -1)",
436                    sqrt(2.0), 2, strategy);
437     itester::apply("box(0 0,1 1)",
438                    "segment(-1 -1,0 -1)",
439                    1, 1, strategy);
440     tester::apply("box(0 0,1 1)",
441                   "segment(-0.5 -1,0.5 -1)",
442                   1, 1, strategy);
443     tester::apply("box(0 0,1 1)",
444                   "segment(0.5 -1,0.75 -1)",
445                   1, 1, strategy);
446     tester::apply("box(0 0,1 1)",
447                   "segment(0.5 -1,1.25 -1)",
448                   1, 1, strategy);
449     tester::apply("box(0 0,1 1)",
450                   "segment(1 -1,2 -1)",
451                   1, 1, strategy);
452     tester::apply("box(0 0,1 1)",
453                   "segment(2 -1,3 -1)",
454                   sqrt(2.0), 2, strategy);
455     tester::apply("box(0 0,1 1)",
456                   "segment(-2 -1,2 -1)",
457                   1, 1, strategy);
458 
459     tester::apply("box(0 0,1 1)",
460                   "segment(-2 0,-1 0)",
461                   1, 1, strategy);
462     tester::apply("box(0 0,1 1)",
463                   "segment(-1 0,0 0)",
464                   0, 0, strategy);
465     tester::apply("box(0 0,1 1)",
466                   "segment(-0.5 0,0.5 0)",
467                   0, 0, strategy);
468     tester::apply("box(0 0,1 1)",
469                   "segment(0.5 0,0.75 0)",
470                   0, 0, strategy);
471     tester::apply("box(0 0,1 1)",
472                   "segment(0.5 0,1.25 0)",
473                   0, 0, strategy);
474     tester::apply("box(0 0,1 1)",
475                   "segment(1 0,2 0)",
476                   0, 0, strategy);
477     tester::apply("box(0 0,1 1)",
478                   "segment(2 0,3 0)",
479                   1, 1, strategy);
480     tester::apply("box(0 0,1 1)",
481                   "segment(-2 0,2 0)",
482                   0, 0, strategy);
483 
484     tester::apply("box(0 0,1 1)",
485                   "segment(-2 0.5,-1 0.5)",
486                   1, 1, strategy);
487     tester::apply("box(0 0,1 1)",
488                   "segment(-1 0.5,0 0.5)",
489                   0, 0, strategy);
490     tester::apply("box(0 0,1 1)",
491                   "segment(-0.5 0.5,0.5 0.5)",
492                   0, 0, strategy);
493     tester::apply("box(0 0,1 1)",
494                   "segment(0.5 0.5,0.75 0.5)",
495                   0, 0, strategy);
496     tester::apply("box(0 0,1 1)",
497                   "segment(0.5 0.5,1.25 0.5)",
498                   0, 0, strategy);
499     tester::apply("box(0 0,1 1)",
500                   "segment(1 0.5,2 0.5)",
501                   0, 0, strategy);
502     tester::apply("box(0 0,1 1)",
503                   "segment(2 0.5,3 0.5)",
504                   1, 1, strategy);
505     tester::apply("box(0 0,1 1)",
506                   "segment(-2 0.5,2 0.5)",
507                   0, 0, strategy);
508 
509     tester::apply("box(0 0,1 1)",
510                   "segment(-2 1,-1 1)",
511                   1, 1, strategy);
512     tester::apply("box(0 0,1 1)",
513                   "segment(-1 1,0 1)",
514                   0, 0, strategy);
515     tester::apply("box(0 0,1 1)",
516                   "segment(-0.5 1,0.5 1)",
517                   0, 0, strategy);
518     tester::apply("box(0 0,1 1)",
519                   "segment(0.5 1,0.75 1)",
520                   0, 0, strategy);
521     tester::apply("box(0 0,1 1)",
522                   "segment(0.5 1,1.25 1)",
523                   0, 0, strategy);
524     tester::apply("box(0 0,1 1)",
525                   "segment(1 1,2 1)",
526                   0, 0, strategy);
527     tester::apply("box(0 0,1 1)",
528                   "segment(2 1,3 1)",
529                   1, 1, strategy);
530     tester::apply("box(0 0,1 1)",
531                   "segment(-2 1,2 1)",
532                   0, 0, strategy);
533 
534     tester::apply("box(0 0,1 1)",
535                   "segment(-2 3,-1 3)",
536                   sqrt(5.0), 5, strategy);
537     itester::apply("box(0 0,1 1)",
538                    "segment(-1 3,0 3)",
539                    2, 4, strategy);
540     tester::apply("box(0 0,1 1)",
541                   "segment(-0.5 3,0.5 3)",
542                   2, 4, strategy);
543     tester::apply("box(0 0,1 1)",
544                   "segment(0.5 3,0.75 3)",
545                   2, 4, strategy);
546     tester::apply("box(0 0,1 1)",
547                   "segment(0.5 3,1.25 3)",
548                   2, 4, strategy);
549     tester::apply("box(0 0,1 1)",
550                   "segment(1 3,2 3)",
551                   2, 4, strategy);
552     tester::apply("box(0 0,1 1)",
553                   "segment(2 3,3 3)",
554                   sqrt(5.0), 5, strategy);
555     tester::apply("box(0 0,1 1)",
556                   "segment(-2 3,2 3)",
557                   2, 4, strategy);
558 
559     // vertical segments
560     tester::apply("box(0 0,1 1)",
561                   "segment(-1 -2,-1 -1)",
562                   sqrt(2.0), 2, strategy);
563     tester::apply("box(0 0,1 1)",
564                   "segment(-1 -1,-1 0)",
565                   1, 1, strategy);
566     tester::apply("box(0 0,1 1)",
567                   "segment(-1 -0.5,-1 0.5)",
568                   1, 1, strategy);
569     tester::apply("box(0 0,1 1)",
570                   "segment(-1 0.5,-1 0.75)",
571                   1, 1, strategy);
572     tester::apply("box(0 0,1 1)",
573                   "segment(-1 0.5,-1 1.25)",
574                   1, 1, strategy);
575     tester::apply("box(0 0,1 1)",
576                   "segment(-1 1,-1 2)",
577                   1, 1, strategy);
578     tester::apply("box(0 0,1 1)",
579                   "segment(-1 2,-1 3)",
580                   sqrt(2.0), 2, strategy);
581     tester::apply("box(0 0,1 1)",
582                   "segment(-1 -2,-1 2)",
583                   1, 1, strategy);
584 
585     tester::apply("box(0 0,1 1)",
586                   "segment(0 -2,0 -1)",
587                   1, 1, strategy);
588     tester::apply("box(0 0,1 1)",
589                   "segment(0 -1,0 0)",
590                   0, 0, strategy);
591     tester::apply("box(0 0,1 1)",
592                   "segment(0 -0.5,0 0.5)",
593                   0, 0, strategy);
594     tester::apply("box(0 0,1 1)",
595                   "segment(0 0.5,0 0.75)",
596                   0, 0, strategy);
597     tester::apply("box(0 0,1 1)",
598                   "segment(0 0.5,0 1.25)",
599                   0, 0, strategy);
600     tester::apply("box(0 0,1 1)",
601                   "segment(0 1,0 2)",
602                   0, 0, strategy);
603     tester::apply("box(0 0,1 1)",
604                   "segment(0 2,0 3)",
605                   1, 1, strategy);
606     tester::apply("box(0 0,1 1)",
607                   "segment(0 -2,0 2)",
608                   0, 0, strategy);
609 
610     tester::apply("box(0 0,1 1)",
611                   "segment(0.5 -2,0.5 -1)",
612                   1, 1, strategy);
613     tester::apply("box(0 0,1 1)",
614                   "segment(0.5 -1,0.5 0)",
615                   0, 0, strategy);
616     tester::apply("box(0 0,1 1)",
617                   "segment(0.5 -0.5,0.5 0.5)",
618                   0, 0, strategy);
619     tester::apply("box(0 0,1 1)",
620                   "segment(0.5 0.5,0.5 0.75)",
621                   0, 0, strategy);
622     tester::apply("box(0 0,1 1)",
623                   "segment(0.5 0.5,0.5 1.25)",
624                   0, 0, strategy);
625     tester::apply("box(0 0,1 1)",
626                   "segment(0.5 1,0.5 2)",
627                   0, 0, strategy);
628     tester::apply("box(0 0,1 1)",
629                   "segment(0.5 2,0.5 3)",
630                   1, 1, strategy);
631     tester::apply("box(0 0,1 1)",
632                   "segment(0.5 -2,0.5 2)",
633                   0, 0, strategy);
634 
635     tester::apply("box(0 0,1 1)",
636                   "segment(1 -2,1 -1)",
637                   1, 1, strategy);
638     tester::apply("box(0 0,1 1)",
639                   "segment(1 -1,1 0)",
640                   0, 0, strategy);
641     tester::apply("box(0 0,1 1)",
642                   "segment(1 -0.5,1 0.5)",
643                   0, 0, strategy);
644     tester::apply("box(0 0,1 1)",
645                   "segment(1 0.5,1 0.75)",
646                   0, 0, strategy);
647     tester::apply("box(0 0,1 1)",
648                   "segment(1 0.5,1 1.25)",
649                   0, 0, strategy);
650     tester::apply("box(0 0,1 1)",
651                   "segment(1 1,1 2)",
652                   0, 0, strategy);
653     tester::apply("box(0 0,1 1)",
654                   "segment(1 2,1 3)",
655                   1, 1, strategy);
656     tester::apply("box(0 0,1 1)",
657                   "segment(1 -2,1 2)",
658                   0, 0, strategy);
659 
660     tester::apply("box(0 0,1 1)",
661                   "segment(3 -2,3 -1)",
662                   sqrt(5.0), 5, strategy);
663     tester::apply("box(0 0,1 1)",
664                   "segment(3 -1,3 0)",
665                   2, 4, strategy);
666     tester::apply("box(0 0,1 1)",
667                   "segment(3 -0.5,3 0.5)",
668                   2, 4, strategy);
669     tester::apply("box(0 0,1 1)",
670                   "segment(3 0.5,3 0.75)",
671                   2, 4, strategy);
672     tester::apply("box(0 0,1 1)",
673                   "segment(3 0.5,3 1.25)",
674                   2, 4, strategy);
675     tester::apply("box(0 0,1 1)",
676                   "segment(3 1,3 2)",
677                   2, 4, strategy);
678     tester::apply("box(0 0,1 1)",
679                   "segment(3 2,3 3)",
680                   sqrt(5.0), 5, strategy);
681     tester::apply("box(0 0,1 1)",
682                   "segment(3 -2,3 2)",
683                   2, 4, strategy);
684 
685     // positive slope
686     itester::apply("box(0 0,1 1)",
687                    "segment(-2 -2,-1 -1)",
688                    sqrt(2.0), 2, strategy);
689     tester::apply("box(0 0,1 1)",
690                   "segment(-2 -2,0 -0.5)",
691                   0.5, 0.25, strategy);
692     tester::apply("box(0 0,1 1)",
693                   "segment(-2 -2,0.5 -0.5)",
694                   0.5, 0.25, strategy);
695     tester::apply("box(0 0,1 1)",
696                   "segment(-2 -2,1 -0.5)",
697                   0.5, 0.25, strategy);
698     tester::apply("box(0 0,1 1)",
699                   "segment(-2 -2,2 0)",
700                   sqrt(0.2), 0.2, strategy);
701     tester::apply("box(0 0,1 1)",
702                   "segment(-2 -2,4 1)",
703                   sqrt(0.2), 0.2, strategy);
704     tester::apply("box(0 0,1 1)",
705                   "segment(-2 -2,-1.5 0)",
706                   1.5, 2.25, strategy);
707     tester::apply("box(0 0,1 1)",
708                   "segment(-2 -2,-1.5 0.5)",
709                   1.5, 2.25, strategy);
710     tester::apply("box(0 0,1 1)",
711                   "segment(-2 -2,-1.5 1)",
712                   1.5, 2.25, strategy);
713     tester::apply("box(0 0,1 1)",
714                   "segment(-2 -2,0 2)",
715                   sqrt(0.2), 0.2, strategy);
716     tester::apply("box(0 0,1 1)",
717                   "segment(-2 -2,1 4)",
718                   sqrt(0.2), 0.2, strategy);
719     tester::apply("box(0 0,1 1)",
720                   "segment(-2 -2,4 2)",
721                   0, 0, strategy);
722     tester::apply("box(0 0,1 1)",
723                   "segment(-2 -2,2 4)",
724                   0, 0, strategy);
725     tester::apply("box(0 0,1 1)",
726                   "segment(-2 -2,4 3)",
727                   0, 0, strategy);
728     tester::apply("box(0 0,1 1)",
729                   "segment(-2 -2,3 4)",
730                   0, 0, strategy);
731     tester::apply("box(0 0,1 1)",
732                   "segment(-2 -2,3 3)",
733                   0, 0, strategy);
734 
735     // negative slope
736     tester::apply("box(0 0,1 1)",
737                   "segment(-2 -2,-1 -3)",
738                   sqrt(8.0), 8, strategy);
739     tester::apply("box(0 0,1 1)",
740                   "segment(-3 -1,0 -4)",
741                   sqrt(8.0), 8, strategy);
742     tester::apply("box(0 0,1 1)",
743                   "segment(-2 0.75,-1.5 0.5)",
744                   1.5, 2.25, strategy);
745     tester::apply("box(0 0,1 1)",
746                   "segment(-2 1.5,-1.5 0.5)",
747                   1.5, 2.25, strategy);
748     tester::apply("box(0 0,1 1)",
749                   "segment(0.5 2,0.75 1.5)",
750                   0.5, 0.25, strategy);
751     tester::apply("box(0 0,1 1)",
752                   "segment(-1 2,0.75 1.5)",
753                   0.5, 0.25, strategy);
754     tester::apply("box(0 0,1 1)",
755                   "segment(0 2,2 0)",
756                   0, 0, strategy);
757     tester::apply("box(0 0,1 1)",
758                   "segment(0 3,3 0)",
759                   sqrt(0.5), 0.5, strategy);
760     tester::apply("box(0 0,1 1)",
761                   "segment(-1 4,4 -1)",
762                   sqrt(0.5), 0.5, strategy);
763     tester::apply("box(0 0,1 1)",
764                   "segment(-1 4,0 3)",
765                   2, 4, strategy);
766     tester::apply("box(0 0,1 1)",
767                   "segment(-2 5,-1 4)",
768                   sqrt(10.0), 10, strategy);
769     tester::apply("box(0 0,1 1)",
770                   "segment(3 -1,4 -4)",
771                   sqrt(5.0), 5, strategy);
772     tester::apply("box(0 0,1 1)",
773                   "segment(1 2,2 1)",
774                   sqrt(0.5), 0.5, strategy);
775     tester::apply("box(0 0,1 1)",
776                   "segment(0.5 -2,2 -3)",
777                   2, 4, strategy);
778     tester::apply("box(0 0,1 1)",
779                   "segment(-1 -2,0 -3)",
780                   sqrt(5.0), 5, strategy);
781     tester::apply("box(0 0,1 1)",
782                   "segment(-1 -2,0.5 -3.5)",
783                   sqrt(5.0), 5, strategy);
784     tester::apply("box(0 0,1 1)",
785                   "segment(-1 -2,0.5 -3.5)",
786                   sqrt(5.0), 5, strategy);
787     tester::apply("box(0 0,1 1)",
788                   "segment(0.5 3,2.5 2)",
789                   sqrt(2.45), 2.45, strategy);
790     tester::apply("box(0 0,1 1)",
791                   "segment(0.5 1.5,1.5 -1.5)",
792                   0, 0, strategy);
793 
794     // test degenerate segment
795     tester::apply("box(0 0,2 2)",
796                   "segment(4 1,4 1)",
797                   2, 4, strategy);
798 }
799 
800 //===========================================================================
801 
802 template <typename Strategy>
test_distance_linestring_box(Strategy const & strategy)803 void test_distance_linestring_box(Strategy const& strategy)
804 {
805 #ifdef BOOST_GEOMETRY_TEST_DEBUG
806     std::cout << std::endl;
807     std::cout << "linestring/box distance tests" << std::endl;
808 #endif
809     typedef test_distance_of_geometries<linestring_type, box_type> tester;
810 
811     // linestrings that intersect the box
812     tester::apply("linestring(-1 0.5,0.5 0.75)",
813                   "box(0 0,1 1)",
814                   0, 0, strategy);
815     tester::apply("linestring(-1 0.5,1.5 0.75)",
816                   "box(0 0,1 1)",
817                   0, 0, strategy);
818 
819     // linestring that has closest point on box boundary
820     tester::apply("linestring(4 0.5,5 0.75)",
821                   "box(0 0,1 1)",
822                   3, 9, strategy);
823 
824     // linestring that has closest point on box corner
825     tester::apply("linestring(4 0,0 4)",
826                   "box(0 0,1 1)",
827                   sqrt(2.0), 2, strategy);
828 }
829 
830 //===========================================================================
831 
832 template <typename Strategy>
test_distance_multilinestring_box(Strategy const & strategy)833 void test_distance_multilinestring_box(Strategy const& strategy)
834 {
835 #ifdef BOOST_GEOMETRY_TEST_DEBUG
836     std::cout << std::endl;
837     std::cout << "multilinestring/box distance tests" << std::endl;
838 #endif
839     typedef test_distance_of_geometries<multi_linestring_type, box_type> tester;
840 
841     // multilinestring that intersects the box
842     tester::apply("multilinestring((-1 0.5,0.5 0.75),(4 0.5,5 0.75))",
843                   "box(0 0,1 1)",
844                   0, 0, strategy);
845 
846     // multilinestring that has closest point on box boundary
847     tester::apply("multilinestring((4 0.5,5 0.75))",
848                   "box(0 0,1 1)",
849                   3, 9, strategy);
850 
851     // multilinestring that has closest point on box corner
852     tester::apply("multilinestring((5 0,0 5),(4 0,0 4))",
853                   "box(0 0,1 1)",
854                   sqrt(2.0), 2, strategy);
855 }
856 
857 //===========================================================================
858 
859 template <typename Point, typename Strategy>
test_more_empty_input_linear_areal(Strategy const & strategy)860 void test_more_empty_input_linear_areal(Strategy const& strategy)
861 {
862 #ifdef BOOST_GEOMETRY_TEST_DEBUG
863     std::cout << std::endl;
864     std::cout << "testing on empty inputs... " << std::flush;
865 #endif
866     bg::model::linestring<Point> line_empty;
867     bg::model::polygon<Point> polygon_empty;
868     bg::model::multi_linestring<bg::model::linestring<Point> > multiline_empty;
869     bg::model::multi_polygon<bg::model::polygon<Point> > multipolygon_empty;
870     bg::model::ring<Point> ring_empty;
871 
872     bg::model::linestring<Point> line =
873         from_wkt<bg::model::linestring<Point> >("linestring(0 0,1 1)");
874 
875     bg::model::polygon<Point> polygon =
876         from_wkt<bg::model::polygon<Point> >("polygon((0 0,1 0,0 1))");
877 
878     bg::model::ring<Point> ring =
879         from_wkt<bg::model::ring<Point> >("polygon((0 0,1 0,0 1))");
880 
881     // 1st geometry is empty
882     test_empty_input(line_empty, polygon, strategy);
883     test_empty_input(line_empty, ring, strategy);
884     test_empty_input(multiline_empty, polygon, strategy);
885     test_empty_input(multiline_empty, ring, strategy);
886 
887     // 2nd geometry is empty
888     test_empty_input(line, polygon_empty, strategy);
889     test_empty_input(line, multipolygon_empty, strategy);
890     test_empty_input(line, ring_empty, strategy);
891 
892     // both geometries are empty
893     test_empty_input(line_empty, polygon_empty, strategy);
894     test_empty_input(line_empty, multipolygon_empty, strategy);
895     test_empty_input(line_empty, ring_empty, strategy);
896     test_empty_input(multiline_empty, polygon_empty, strategy);
897     test_empty_input(multiline_empty, multipolygon_empty, strategy);
898     test_empty_input(multiline_empty, ring_empty, strategy);
899 
900 #ifdef BOOST_GEOMETRY_TEST_DEBUG
901     std::cout << "done!" << std::endl;
902 #endif
903 }
904 
905 //===========================================================================
906 
BOOST_AUTO_TEST_CASE(test_all_segment_polygon)907 BOOST_AUTO_TEST_CASE( test_all_segment_polygon )
908 {
909     test_distance_segment_polygon(point_segment_strategy());
910 }
911 
BOOST_AUTO_TEST_CASE(test_all_linestring_polygon)912 BOOST_AUTO_TEST_CASE( test_all_linestring_polygon )
913 {
914     test_distance_linestring_polygon(point_segment_strategy());
915     test_distance_linestring_open_polygon(point_segment_strategy());
916 }
917 
BOOST_AUTO_TEST_CASE(test_all_multilinestring_polygon)918 BOOST_AUTO_TEST_CASE( test_all_multilinestring_polygon )
919 {
920     test_distance_multilinestring_polygon(point_segment_strategy());
921 }
922 
BOOST_AUTO_TEST_CASE(test_all_segment_multipolygon)923 BOOST_AUTO_TEST_CASE( test_all_segment_multipolygon )
924 {
925     test_distance_segment_multipolygon(point_segment_strategy());
926 }
927 
BOOST_AUTO_TEST_CASE(test_all_linestring_multipolygon)928 BOOST_AUTO_TEST_CASE( test_all_linestring_multipolygon )
929 {
930     test_distance_linestring_multipolygon(point_segment_strategy());
931     test_distance_linestring_open_multipolygon(point_segment_strategy());
932 }
933 
BOOST_AUTO_TEST_CASE(test_all_multilinestring_multipolygon)934 BOOST_AUTO_TEST_CASE( test_all_multilinestring_multipolygon )
935 {
936     test_distance_multilinestring_multipolygon(point_segment_strategy());
937 }
938 
BOOST_AUTO_TEST_CASE(test_all_segment_ring)939 BOOST_AUTO_TEST_CASE( test_all_segment_ring )
940 {
941     test_distance_segment_ring(point_segment_strategy());
942 }
943 
BOOST_AUTO_TEST_CASE(test_all_linestring_ring)944 BOOST_AUTO_TEST_CASE( test_all_linestring_ring )
945 {
946     test_distance_linestring_ring(point_segment_strategy());
947 }
948 
BOOST_AUTO_TEST_CASE(test_all_multilinestring_ring)949 BOOST_AUTO_TEST_CASE( test_all_multilinestring_ring )
950 {
951     test_distance_multilinestring_ring(point_segment_strategy());
952 }
953 
BOOST_AUTO_TEST_CASE(test_all_segment_box)954 BOOST_AUTO_TEST_CASE( test_all_segment_box )
955 {
956     test_distance_segment_box(segment_box_strategy());
957 }
958 
BOOST_AUTO_TEST_CASE(test_all_linestring_box)959 BOOST_AUTO_TEST_CASE( test_all_linestring_box )
960 {
961     test_distance_linestring_box(point_segment_strategy());
962 }
963 
BOOST_AUTO_TEST_CASE(test_all_multilinestring_box)964 BOOST_AUTO_TEST_CASE( test_all_multilinestring_box )
965 {
966     test_distance_multilinestring_box(point_segment_strategy());
967 }
968 
BOOST_AUTO_TEST_CASE(test_all_empty_input_linear_areal)969 BOOST_AUTO_TEST_CASE( test_all_empty_input_linear_areal )
970 {
971     test_more_empty_input_linear_areal<point_type>(point_segment_strategy());
972 }
973