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//
// Test Suite for C-API GEOSOrientationPolygons
#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_capigeosorientpolygons_data : public capitest::utility {};
typedef test_group<test_capigeosorientpolygons_data> group;
typedef group::object object;
group test_capigeosorientpolygons_group("capi::GEOSOrientPolygons");
// empty polygon is passed through
template<>
template<>
void object::test<1>()
{
geom1_ = GEOSGeomFromWKT("POLYGON EMPTY");
ensure_equals(GEOSOrientPolygons(geom1_, 1), 0);
ensure_equals(toWKT(geom1_), "POLYGON EMPTY");
}
// hole orientation is opposite to shell
template<>
template<>
void object::test<2>()
{
geom1_ = GEOSGeomFromWKT("POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0), (1 1, 2 1, 2 2, 1 2, 1 1))");
ensure_equals(GEOSOrientPolygons(geom1_, 0), 0);
ensure_equals(toWKT(geom1_), "POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0), (1 1, 1 2, 2 2, 2 1, 1 1))");
ensure_equals(GEOSOrientPolygons(geom1_, 1), 0);
ensure_equals(toWKT(geom1_), "POLYGON ((0 0, 0 10, 10 10, 10 0, 0 0), (1 1, 2 1, 2 2, 1 2, 1 1))");
}
// all polygons in collection are processed
template<>
template<>
void object::test<3>()
{
geom1_ = GEOSGeomFromWKT("MULTIPOLYGON (((0 0, 10 0, 10 10, 0 10, 0 0), (1 1, 2 1, 2 2, 1 2, 1 1)), ((100 100, 200 100, 200 200, 100 100)))");
ensure_equals(GEOSOrientPolygons(geom1_, 0), 0);
ensure_equals(toWKT(geom1_), "MULTIPOLYGON (((0 0, 10 0, 10 10, 0 10, 0 0), (1 1, 1 2, 2 2, 2 1, 1 1)), ((100 100, 200 100, 200 200, 100 100)))");
ensure_equals(GEOSOrientPolygons(geom1_, 1), 0);
ensure_equals(toWKT(geom1_), "MULTIPOLYGON (((0 0, 0 10, 10 10, 10 0, 0 0), (1 1, 2 1, 2 2, 1 2, 1 1)), ((100 100, 200 200, 200 100, 100 100)))");
}
// polygons in collection are oriented, closed linestring unchanged
template<>
template<>
void object::test<4>()
{
geom1_ = GEOSGeomFromWKT("GEOMETRYCOLLECTION (POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0), (1 1, 2 1, 2 2, 1 2, 1 1)), LINESTRING (100 100, 200 100, 200 200, 100 100))");
ensure_equals(GEOSOrientPolygons(geom1_, 1), 0);
ensure_equals(toWKT(geom1_), "GEOMETRYCOLLECTION (POLYGON ((0 0, 0 10, 10 10, 10 0, 0 0), (1 1, 2 1, 2 2, 1 2, 1 1)), LINESTRING (100 100, 200 100, 200 200, 100 100))");
}
// nested collection handled correctly
template<>
template<>
void object::test<5>()
{
geom1_ = GEOSGeomFromWKT("GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (MULTIPOLYGON (((0 0, 10 0, 10 10, 0 10, 0 0)))))");
ensure_equals(GEOSOrientPolygons(geom1_, 0), 0);
ensure_equals(toWKT(geom1_), "GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (MULTIPOLYGON (((0 0, 10 0, 10 10, 0 10, 0 0)))))");
ensure_equals(GEOSOrientPolygons(geom1_, 1), 0);
ensure_equals(toWKT(geom1_), "GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (MULTIPOLYGON (((0 0, 0 10, 10 10, 10 0, 0 0)))))");
}
template<>
template<>
void object::test<6>()
{
input_ = fromWKT("CURVEPOLYGON (COMPOUNDCURVE( CIRCULARSTRING (0 0, 1 1, 2 0), (2 0, 0 0)))");
ensure(input_);
auto ret = GEOSOrientPolygons(input_, 0);
ensure_equals("curved geometries not supported", ret, -1);
}
} // namespace tut
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