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// Boost.Geometry (aka GGL, Generic Geometry Library)
//
// Copyright (c) 2012 Barend Gehrels, Amsterdam, the Netherlands.
// 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 <algorithms/test_touches.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
template <typename P>
void test_all()
{
typedef bg::model::polygon<P> polygon;
// Just a normal polygon
test_self_touches<polygon>("POLYGON((0 0,0 4,1.5 2.5,2.5 1.5,4 0,0 0))", false);
// Self intersecting
test_self_touches<polygon>("POLYGON((1 2,1 1,2 1,2 2.25,3 2.25,3 0,0 0,0 3,3 3,2.75 2,1 2))", false);
// Self touching at a point
test_self_touches<polygon>("POLYGON((0 0,0 3,2 3,2 2,1 2,1 1,2 1,2 2,3 2,3 0,0 0))", true);
// Self touching at a segment
test_self_touches<polygon>("POLYGON((0 0,0 3,2 3,2 2,1 2,1 1,2 1,2 2.5,3 2.5,3 0,0 0))", true);
// Touching at corner
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((100 100,100 200,200 200, 200 100,100 100))",
true
);
// Intersecting at corner
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,101 101,100 0,0 0))",
"POLYGON((100 100,100 200,200 200, 200 100,100 100))",
false
);
// Touching at side (interior of a segment)
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((200 0,100 50,200 100,200 0))",
true
);
// Touching at side (partly collinear)
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((200 20,100 20,100 80,200 80,200 20))",
true
);
// Completely equal
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
false
);
// Spatially equal
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((0 0,0 100,100 100,100 80,100 20,100 0,0 0))",
false
);
// Spatially equal (without equal segments)
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((0 0,0 50,0 100,50 100,100 100,100 50,100 0,50 0,0 0))",
false
);
// Touching at side (opposite equal)
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((200 0,100 0,100 100,200 100,200 0))",
true
);
// Touching at side (opposite equal - but with real "equal" turning point)
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 80,100 20,100 0,0 0))",
"POLYGON((200 0,100 0,100 20,100 80,100 100,200 100,200 0))",
true
);
// First partly collinear to side, than overlapping
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((200 20,100 20,100 50,50 50,50 80,100 80,200 80,200 20))",
false
);
// Touching interior (= no touch)
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0))",
"POLYGON((20 20,20 80,100 50,20 20))",
false
);
// Fitting in hole
test_touches<polygon, polygon>
(
"POLYGON((0 0,0 100,100 100,100 0,0 0),(40 40,60 40,60 60,40 60,40 40))",
"POLYGON((40 40,40 60,60 60,60 40,40 40))",
true
);
}
int test_main( int , char* [] )
{
test_all<bg::model::d2::point_xy<double> >();
#if defined(HAVE_TTMATH)
test_all<bg::model::d2::point_xy<ttmath_big> >();
#endif
return 0;
}
/*
with viewy as
(
select geometry::STGeomFromText('POLYGON((0 0,0 100,100 100,100 0,0 0))',0) as p
, geometry::STGeomFromText('POLYGON((200 0,100 50,200 100,200 0))',0) as q
)
-- select p from viewy union all select q from viewy
select p.STTouches(q) from viewy
*/
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