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//
// Test Suite for C-API GEOSPolygonHullSimplify
#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_capigeospolygonhull_data : public capitest::utility {};
typedef test_group<test_capigeospolygonhull_data> group;
typedef group::object object;
group test_capigeospolygonhull_group("capi::GEOSPolygonHullSimplify");
//
// Test Cases
//
template<>
template<>
void object::test<1>()
{
input_ = GEOSGeomFromWKT("POLYGON ((10 90, 40 60, 20 40, 40 20, 70 50, 40 30, 30 40, 60 70, 50 90, 90 90, 90 10, 10 10, 10 90))");
ensure(nullptr != input_);
geom1_ = GEOSPolygonHullSimplify(input_, 1, 0.5);
ensure(nullptr != geom1_);
expected_ = GEOSGeomFromWKT("POLYGON ((10 90, 50 90, 90 90, 90 10, 10 10, 10 90))");
ensure_geometry_equals(geom1_, expected_);
ensure(0 == GEOSisEmpty(geom1_));
}
template<>
template<>
void object::test<2>()
{
input_ = GEOSGeomFromWKT("POLYGON ((10 90, 40 60, 20 40, 40 20, 70 50, 40 30, 30 40, 60 70, 50 90, 90 90, 90 10, 10 10, 10 90))");
ensure(nullptr != input_);
geom1_ = GEOSPolygonHullSimplify(input_, 1, 0.7);
ensure(nullptr != geom1_);
expected_ = GEOSGeomFromWKT("POLYGON ((10 90, 40 60, 30 40, 60 70, 50 90, 90 90, 90 10, 10 10, 10 90))");
ensure_geometry_equals(geom1_, expected_);
ensure(0 == GEOSisEmpty(geom1_));
}
template<>
template<>
void object::test<3>()
{
input_ = GEOSGeomFromWKT("POLYGON EMPTY");
ensure(nullptr != input_);
geom1_ = GEOSPolygonHullSimplify(input_, 1, 0.7);
ensure(nullptr != geom1_);
expected_ = GEOSGeomFromWKT("POLYGON EMPTY");
ensure_geometry_equals(geom1_, expected_);
}
template<>
template<>
void object::test<4>()
{
input_ = GEOSGeomFromWKT("POLYGON ((0 0, 0 1, 1 1, 1 0, 0 0))");
ensure(nullptr != input_);
geom1_ = GEOSPolygonHullSimplify(input_, 1, 0.7);
ensure(nullptr != geom1_);
expected_ = GEOSGeomFromWKT("POLYGON ((0 0, 0 1, 1 1, 1 0, 0 0))");
ensure_geometry_equals(geom1_, expected_);
}
template<>
template<>
void object::test<5>()
{
input_ = GEOSGeomFromWKT("POLYGON ((0 0, 0 1, 1 1, 1 0, 0 0))");
ensure(nullptr != input_);
geom1_ = GEOSPolygonHullSimplifyMode(input_, 1, GEOSHULL_PARAM_AREA_RATIO, 0.7);
ensure(nullptr != geom1_);
// char *wkt = GEOSWKTWriter_write(wktw_, geom1_);
// printf("%s\n", wkt);
expected_ = GEOSGeomFromWKT("POLYGON ((0 0, 0 1, 1 1, 1 0, 0 0))");
ensure_geometry_equals(geom1_, expected_);
}
template<>
template<>
void object::test<6>()
{
input_ = fromWKT("CURVEPOLYGON (COMPOUNDCURVE( CIRCULARSTRING (0 0, 1 1, 2 0), (2 0, 1 0.0001, 0 0)))");
ensure(input_);
result_ = GEOSPolygonHullSimplify(input_, 1, 0.8);
ensure("curved geometries not supported", result_ == nullptr);
}
} // namespace tut
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