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geometry/test/algorithms/is_simple_geo.cpp at develop · boostorg/geometry · GitHub
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//
Boost.Geometry (aka GGL, Generic Geometry Library)
//
Unit Test
//
Copyright (c) 2014-2017, Oracle and/or its affiliates.
//
Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
//
Licensed under the Boost Software License version 1.0.
//
http://www.boost.org/users/license.html
#
ifndef
BOOST_TEST_MODULE
#
define
BOOST_TEST_MODULE
test_is_simple_geo
#
endif
#
include
"
test_is_simple.hpp
"
inline
bg::srs::spheroid<
double
>
sph
(
double
a,
double
rf)
{
double
b = a - a / rf;
return
bg::srs::spheroid<
double
>(a, b);
}
typedef
bg::model::point<
double
,
2
, bg::cs::geographic<bg::degree> > point_type;
typedef
bg::model::segment<point_type> segment_type;
typedef
bg::model::linestring<point_type> linestring_type;
typedef
bg::model::multi_linestring<linestring_type> multi_linestring_type;
//
ccw open and closed polygons
typedef
bg::model::polygon<point_type,
false
,
false
> open_ccw_polygon_type;
typedef
bg::model::polygon<point_type,
false
,
true
> closed_ccw_polygon_type;
//
multi-geometries
typedef
bg::model::multi_point<point_type> multi_point_type;
typedef
bg::model::multi_polygon<open_ccw_polygon_type> multi_polygon_type;
//
box
typedef
bg::model::box<point_type> box_type;
BOOST_AUTO_TEST_CASE
( test_is_simple_geo_multipoint )
{
typedef
multi_point_type G;
bg::strategy::intersection::geographic_segments<> s;
test_simple_s
(from_wkt<G>(
"
MULTIPOINT(0 90, 0 90)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
MULTIPOINT(0 90, 1 90)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
MULTIPOINT(0 -90, 0 -90)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
MULTIPOINT(0 -90, 1 -90)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
MULTIPOINT(0 80, 1 80)
"
), s,
true
);
}
BOOST_AUTO_TEST_CASE
( test_is_simple_geo_linestring )
{
typedef
linestring_type G;
bg::srs::spheroid<
double
> sph_wgs84;
bg::srs::spheroid<
double
>
sph_4053
(
6371228
,
6371228
);
bg::srs::spheroid<
double
>
sph_near_4053
(
6371228
,
6371227
);
bg::strategy::intersection::geographic_segments<>
s
(sph_wgs84);
bg::strategy::intersection::geographic_segments<>
s_4053
(sph_4053);
bg::strategy::intersection::geographic_segments<>
s_near_4053
(sph_near_4053);
//
Two cases which in Cartesian would be a spike, but in Geographic
//
they go over the equator (first segment) and then over the pole
//
(second segment)
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 0, -90 0, 90 0)
"
), s,
true
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 0, 90 0, -90 0)
"
), s,
true
);
//
Two similar cases, but these do not go over the pole back, but
//
over the equator, and therefore make a spike
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 0, -80 0, 80 0)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 0, 80 0, -80 0)
"
), s,
false
);
//
Going over the equator in a normal way, eastwards and westwards
test_simple_s
(from_wkt<G>(
"
LINESTRING(-90 0, 0 0, 90 0)
"
), s,
true
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(90 0, 0 0, -90 0)
"
), s,
true
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 90, -90 0, 90 0)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 90, -90 50, 90 0)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 90, -90 -50, 90 0)
"
), s,
true
);
//
invalid linestrings
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 90, 0 90)
"
), s,
false
,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 -90, 0 -90)
"
), s,
false
,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 90, 1 90)
"
), s,
false
,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(0 -90, 1 -90)
"
), s,
false
,
false
);
//
FAILING
//
test_simple_s(from_wkt<G>("LINESTRING(0 90, 0 80, 1 80, 0 90)"), s, false);
//
test_simple_s(from_wkt<G>("LINESTRING(0 -90, 0 -80, 1 -80, 0 -90)"), s, false);
//
test_simple_s(from_wkt<G>("LINESTRING(0 90, 0 80, 1 80, 1 90)"), s, false);
//
test_simple_s(from_wkt<G>("LINESTRING(0 -90, 0 -80, 1 -80, 1 -90)"), s, false);
test_simple_s
(from_wkt<G>(
"
LINESTRING(35 0, 110 36, 159 0, 82 30)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(135 0, -150 36, -101 0, -178 30)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(45 0, 120 36, 169 0, 92 30)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(179 0, -179 1, -179 0, 179 1)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(-121 -19,37 8,-19 -15,-104 -58)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(-121 -19,37 8,-19 -15,-104 -58)
"
), s_4053,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(-121 -19,37 8,-19 -15,-104 -58)
"
), s_near_4053,
false
);
//
The segments are very close to each other, in WGS84 they cross,
//
in spherical or nearly spherical they don't cross
test_simple_s
(from_wkt<G>(
"
LINESTRING(106 22,21 39,40 -12,-91 68)
"
), s,
false
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(106 22,21 39,40 -12,-91 68)
"
), s_4053,
true
);
test_simple_s
(from_wkt<G>(
"
LINESTRING(106 22,21 39,40 -12,-91 68)
"
), s_near_4053,
true
);
}
BOOST_AUTO_TEST_CASE
( test_is_simple_geo_multilinestring )
{
typedef
multi_linestring_type G;
bg::strategy::intersection::geographic_segments<> s_wgs84;
//
EPSG 4326
bg::strategy::intersection::geographic_segments<>
s_bessel
((
sph
(
6377397.155
,
299.1528128
)));
//
EPSG 4804, 4813, 4820
//
FAILING
//
test_simple_s(from_wkt<G>("MULTILINESTRING((0 90, 0 80),(1 90, 1 80))"), s_wgs84, false);
//
test_simple_s(from_wkt<G>("MULTILINESTRING((0 -90, 0 -80),(1 -90, 1 -80))"), s_wgs84, false);
test_simple_s
(from_wkt<G>(
"
MULTILINESTRING((35 0, 110 36),(159 0, 82 30))
"
), s_wgs84,
false
);
test_simple_s
(from_wkt<G>(
"
MULTILINESTRING((135 0, -150 36),(-101 0, -178 30))
"
), s_wgs84,
false
);
test_simple_s
(from_wkt<G>(
"
MULTILINESTRING((45 0, 120 36),(169 0, 92 30))
"
), s_wgs84,
false
);
test_simple_s
(from_wkt<G>(
"
MULTILINESTRING((179 0, -179 1),(-179 0, 179 1))
"
), s_wgs84,
false
);
test_simple_s
(from_wkt<G>(
"
MULTILINESTRING((35 2,110 36),(72 51,67 28,16 53,159 3,82 30))
"
), s_wgs84,
false
);
test_simple_s
(from_wkt<G>(
"
MULTILINESTRING((35 2,110 36),(72 51,67 28,16 53,159 3,82 30))
"
), s_bessel,
false
);
}
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