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//
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.
//
Copyright (c) 2013-2015 Adam Wulkiewicz, Lodz, Poland.
//
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
<
iostream
>
#
include
<
iomanip
>
#
include
<
string
>
//
Instead of having a separate (and nearly similar) unit test to test multipolygons,
//
we now include them here and compile them by default. Only undefining the next line
//
will avoid testing multi-geometries
#
define
BOOST_GEOMETRY_UNIT_TEST_MULTI
#
include
<
boost/variant/variant.hpp
>
#
include
<
geometry_test_common.hpp
>
//
The include to test
#
include
<
boost/geometry/algorithms/remove_spikes.hpp
>
//
Helper includes
#
include
<
boost/geometry/algorithms/area.hpp
>
#
include
<
boost/geometry/algorithms/correct.hpp
>
#
include
<
boost/geometry/algorithms/perimeter.hpp
>
#
include
<
boost/geometry/geometries/geometries.hpp
>
#
include
<
boost/geometry/geometries/point_xy.hpp
>
#
include
<
boost/geometry/io/wkt/wkt.hpp
>
#
include
<
boost/geometry/strategies/strategies.hpp
>
#
if
defined(BOOST_GEOMETRY_UNIT_TEST_MULTI)
#
include
<
boost/geometry/geometries/multi_polygon.hpp
>
#
endif
#
if
defined(TEST_WITH_SVG)
#
include
<
boost/geometry/io/svg/svg_mapper.hpp
>
#
endif
template
<
typename
Geometry>
inline
void
test_remove_spikes
(std::string
const
&
/*
id
*/
,
Geometry& geometry,
double
expected_area,
double
expected_perimeter)
{
bg::remove_spikes
(geometry);
double
detected_area =
bg::area
(geometry);
double
detected_perimeter =
bg::perimeter
(geometry);
BOOST_CHECK_CLOSE
(detected_area, expected_area,
0.01
);
BOOST_CHECK_CLOSE
(detected_perimeter, expected_perimeter,
0.01
);
}
template
<
typename
Geometry>
void
test_geometry
(std::string
const
& id, std::string
const
& wkt,
double
expected_area,
double
expected_perimeter)
{
Geometry geometry;
bg::read_wkt
(wkt, geometry);
bg::correct
(geometry);
boost::variant<Geometry>
v
(geometry);
#
if
defined(TEST_WITH_SVG)
std::ostringstream filename;
filename <<
"
remove_spikes_
"
<< id;
if
(! bg::closure<Geometry>::value)
{
filename <<
"
_open
"
;
}
filename <<
"
.svg
"
;
std::ofstream
svg
(filename.
str
().
c_str
());
bg::svg_mapper<
typename
bg::point_type<Geometry>::type>
mapper
(svg,
500
,
500
);
mapper.
add
(geometry);
mapper.
map
(geometry,
"
fill-opacity:0.3;opacity:0.6;fill:rgb(51,51,153);stroke:rgb(0,0,255);stroke-width:2
"
);
#
endif
test_remove_spikes
(id, geometry, expected_area, expected_perimeter);
test_remove_spikes
(id, v, expected_area, expected_perimeter);
#
if
defined(TEST_WITH_SVG)
mapper.
map
(geometry,
"
opacity:0.6;fill:none;stroke:rgb(255,0,0);stroke-width:3
"
);
#
endif
}
template
<
typename
P,
bool
Clockwise,
bool
Closed>
void
test_polygons
()
{
typedef
bg::model::ring<P, Clockwise, Closed> ring;
typedef
bg::model::polygon<P, Clockwise, Closed> polygon;
test_geometry<ring>(
"
box
"
,
"
POLYGON((0 0,0 4,4 4,4 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
box
"
,
"
POLYGON((0 0,0 4,4 4,4 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
box2
"
,
"
POLYGON((0 0,0 2,0 4,2 4,4 4,4 2,4 0,2 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
spike_right
"
,
"
POLYGON((0 0,0 4,4 4,4 2,6 2,4 2,4 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
spike_at_corner
"
,
"
POLYGON((0 0,0 4,6 4,4 4,4 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
spike_at_first
"
,
"
POLYGON((0 0,-1 3,0 0,0 4,4 4,4 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
spike_at_last
"
,
"
POLYGON((0 0,0 4,4 4,4 0,6 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
spike_at_closing
"
,
"
POLYGON((-1 0,0 0,0 4,4 4,4 0,0 0,-1 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
double_spike
"
,
"
POLYGON((0 0,0 4,4 4,4 2,6 2,5 2,4 2,4 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
three_double_spike
"
,
"
POLYGON((0 0,0 4,4 4,4 2,6 2,5 2,4.5 2,4 2,4 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
spike_with_corner
"
,
"
POLYGON((0 0,0 4,4 4,4 2,6 2,6 4,6 2,4 2,4 0,0 0))
"
,
16
,
16
);
test_geometry<polygon>(
"
triangle0
"
,
"
POLYGON((0 0,0 4,2 0,4 0,0 0))
"
,
4
,
6
+
sqrt
(
20.0
));
test_geometry<polygon>(
"
triangle1
"
,
"
POLYGON((0 4,2 0,4 0,0 0,0 4))
"
,
4
,
6
+
sqrt
(
20.0
));
test_geometry<polygon>(
"
triangle2
"
,
"
POLYGON((2 0,4 0,0 0,0 4,2 0))
"
,
4
,
6
+
sqrt
(
20.0
));
test_geometry<polygon>(
"
triangle3
"
,
"
POLYGON((4 0,0 0,0 4,2 0,4 0))
"
,
4
,
6
+
sqrt
(
20.0
));
test_geometry<polygon>(
"
only_spike1
"
,
"
POLYGON((0 0,2 2,0 0))
"
,
0
,
0
);
test_geometry<polygon>(
"
only_spike2
"
,
"
POLYGON((0 0,2 2,4 4,2 2,0 0))
"
,
0
,
0
);
test_geometry<polygon>(
"
only_spike3
"
,
"
POLYGON((0 0,2 2,4 4,0 0))
"
,
0
,
0
);
test_geometry<polygon>(
"
only_spike4
"
,
"
POLYGON((0 0,4 4,2 2,0 0))
"
,
0
,
0
);
}
template
<
typename
P,
bool
Clockwise,
bool
Closed>
void
test_multi_polygons
()
{
typedef
bg::model::polygon<P, Clockwise, Closed> polygon;
typedef
bg::model::multi_polygon<polygon> multi_polygon;
test_geometry<multi_polygon>(
"
multi_spike_with_corner
"
,
"
MULTIPOLYGON(((0 0,0 4,4 4,4 2,6 2,6 4,6 2,4 2,4 0,0 0)))
"
,
16
,
16
);
}
template
<
typename
P,
bool
Clockwise,
bool
Closed>
void
test_all
()
{
test_polygons<P, Clockwise, Closed>();
test_multi_polygons<P, Clockwise, Closed>();
}
int
test_main
(
int
,
char
* [])
{
test_all<bg::model::d2::point_xy<
double
>,
true
,
true
>();
test_all<bg::model::d2::point_xy<
double
>,
true
,
false
>();
return
0
;
}
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