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//
// Test Suite for C-API GEOSintersection
#include <tut/tut.hpp>
// geos
#include <geos_c.h>
#include "capi_test_utils.h"
namespace tut {
//
// Test Group
//
// Common data used in test cases.
struct test_capigeosintersectionprec_data : public capitest::utility {
test_capigeosintersectionprec_data() {
}
static int
same(GEOSGeometry* g1, GEOSGeometry* g2, double tolerance)
{
GEOSNormalize(g1);
GEOSNormalize(g2);
return GEOSEqualsExact(g1, g2, tolerance);
}
};
typedef test_group<test_capigeosintersectionprec_data> group;
typedef group::object object;
group test_capigeosintersectionprec_group("capi::GEOSIntersectionPrec");
//
// Test Cases
//
template<>
template<>
void object::test<1>
()
{
geom1_ = GEOSGeomFromWKT("POLYGON EMPTY");
geom2_ = GEOSGeomFromWKT("POLYGON EMPTY");
ensure(nullptr != geom1_);
ensure(nullptr != geom2_);
geom3_ = GEOSIntersectionPrec(geom1_, geom2_, 0);
ensure(nullptr != geom3_);
ensure_equals(toWKT(geom3_), std::string("POLYGON EMPTY"));
}
template<>
template<>
void object::test<2>
()
{
geom1_ = GEOSGeomFromWKT("POLYGON((1 1,1 5,5 5,5 1,1 1))");
geom2_ = GEOSGeomFromWKT("POINT(2 2)");
ensure(nullptr != geom1_);
ensure(nullptr != geom2_);
geom3_ = GEOSIntersectionPrec(geom1_, geom2_, 0);
ensure(nullptr != geom3_);
ensure_equals(toWKT(geom3_), std::string("POINT (2 2)"));
}
template<>
template<>
void object::test<3>
()
{
geom1_ = GEOSGeomFromWKT("MULTIPOLYGON(((0 0,0 10,10 10,10 0,0 0)))");
geom2_ = GEOSGeomFromWKT("POLYGON((-1 1,-1 2,2 2,2 1,-1 1))");
expected_ = GEOSGeomFromWKT("POLYGON ((0 1, 0 2, 2 2, 2 1, 0 1))");
ensure(nullptr != geom1_);
ensure(nullptr != geom2_);
geom3_ = GEOSIntersectionPrec(geom1_, geom2_, 0);
ensure(nullptr != geom3_);
ensure(same(geom3_, expected_, 0.1));
}
/* See http://trac.osgeo.org/geos/ticket/719 */
template<>
template<>
void object::test<4>
()
{
geom1_ = GEOSGeomFromWKT("MULTIPOLYGON(((0 0,5 10,10 0,0 0),(1 1,1 2,2 2,2 1,1 1),(100 100,100 102,102 102,102 100,100 100)))");
geom2_ = GEOSGeomFromWKT("POLYGON((0 1,0 2,10 2,10 1,0 1))");
ensure(nullptr != geom1_);
ensure(nullptr != geom2_);
geom3_ = GEOSIntersectionPrec(geom1_, geom2_, 0);
GEOSNormalize(geom3_);
ensure(nullptr != geom3_);
expected_ = GEOSGeomFromWKT("GEOMETRYCOLLECTION (LINESTRING (1 2, 2 2), LINESTRING (2 1, 1 1), POLYGON ((0.5 1, 1 2, 1 1, 0.5 1)), POLYGON ((9 2, 9.5 1, 2 1, 2 2, 9 2)))");
GEOSNormalize(expected_);
ensure(GEOSEqualsExact(expected_, geom3_, 0.00001));
}
template<>
template<>
void object::test<5>
()
{
geom1_ = GEOSGeomFromWKT("LINESTRING(0 0, 10 0)");
geom2_ = GEOSGeomFromWKT("LINESTRING(0 1, 10 1)");
ensure(nullptr != geom1_);
ensure(nullptr != geom2_);
geom3_ = GEOSIntersectionPrec(geom1_, geom2_, 0);
ensure(nullptr != geom3_);
ensure_equals(toWKT(geom3_), std::string("LINESTRING EMPTY"));
}
template<>
template<>
void object::test<6>
()
{
geom1_ = GEOSGeomFromWKT("LINESTRING(0 0, 10 0)");
geom2_ = GEOSGeomFromWKT("LINESTRING(0 1, 10 1)");
ensure(nullptr != geom1_);
ensure(nullptr != geom2_);
geom3_ = GEOSIntersectionPrec(geom1_, geom2_, 10);
ensure(nullptr != geom3_);
ensure_equals(toWKT(geom3_), std::string("LINESTRING (0 0, 10 0)"));
}
template<>
template<>
void object::test<7>
()
{
geom1_ = GEOSGeomFromWKT("LINESTRING(0 0, 10 0)");
geom2_ = GEOSGeomFromWKT("LINESTRING(0 1, 10 0)");
ensure(nullptr != geom1_);
ensure(nullptr != geom2_);
geom3_ = GEOSIntersectionPrec(geom1_, geom2_, 0);
ensure(nullptr != geom3_);
ensure_equals(toWKT(geom3_), std::string("POINT (10 0)"));
}
template<>
template<>
void object::test<8>
()
{
geom1_ = GEOSGeomFromWKT("LINESTRING(0 0, 10 0)");
geom2_ = GEOSGeomFromWKT("LINESTRING(9 0, 12 0, 12 20, 4 0, 2 0, 2 10, 0 10, 0 -10)");
ensure(nullptr != geom1_);
ensure(nullptr != geom2_);
geom3_ = GEOSIntersectionPrec(geom1_, geom2_, 2);
ensure(nullptr != geom3_);
ensure_geometry_equals(geom3_, "GEOMETRYCOLLECTION (LINESTRING (2 0, 4 0), POINT (0 0), POINT (10 0))");
}
} // namespace tut
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