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//
// Test Suite for geos::coverage::TPVWSimplifier class.
#include <tut/tut.hpp>
#include <utility.h>
// geos
#include <geos/coverage/TPVWSimplifier.h>
using namespace geos::geom;
using geos::coverage::TPVWSimplifier;
namespace tut {
//
// Test Group
//
// Common data used by all tests
struct test_tpvwsimplifier_data {
WKTReader r;
WKTWriter w;
test_tpvwsimplifier_data() {
}
void
checkNoop(
const std::string& wkt,
double tolerance)
{
std::unique_ptr<Geometry> geom = r.read(wkt);
const MultiLineString* mls = static_cast<const MultiLineString*>(geom.get());
std::unique_ptr<Geometry> actual = TPVWSimplifier::simplify(mls, tolerance);
ensure_equals_geometry(actual.get(), geom.get());
}
void
checkSimplify(
const std::string& wkt,
double tolerance,
const std::string& wktExpected)
{
auto mls = r.read<MultiLineString>(wkt);
std::unique_ptr<Geometry> actual = TPVWSimplifier::simplify(mls.get(), tolerance);
std::unique_ptr<Geometry> expected = r.read(wktExpected);
ensure_equals_geometry(actual.get(), expected.get());
}
void
checkSimplify(
const std::string& wkt,
const std::vector<std::size_t> freeRingIndex,
double tolerance,
const std::string& wktExpected)
{
checkSimplify(wkt, freeRingIndex, "", tolerance, wktExpected);
}
void
checkSimplify(
const std::string& wkt,
const std::vector<std::size_t> freeRingIndex,
const std::string& wktConstraints,
double tolerance,
const std::string& wktExpected)
{
auto lines = r.read<MultiLineString>(wkt);
std::vector<bool> freeRings(lines->getNumGeometries(), false);
for (std::size_t index : freeRingIndex) {
freeRings[index] = true;
}
std::unique_ptr<MultiLineString> constraints(nullptr);
if (wktConstraints.length() > 0) {
constraints = r.read<MultiLineString>(wktConstraints);
}
std::unique_ptr<Geometry> actual = TPVWSimplifier::simplify(lines.get(), freeRings, constraints.get(), tolerance);
std::unique_ptr<Geometry> expected = r.read(wktExpected);
// std::cout << "-- actual" << std::endl;
// std::cout << w.write(*actual) << std::endl;
// std::cout << "-- expected" << std::endl;
// std::cout << w.write(*expected) << std::endl;
ensure_equals_geometry(actual.get(), expected.get());
}
};
typedef test_group<test_tpvwsimplifier_data> group;
typedef group::object object;
group test_tpvwsimplifier_data("geos::coverage::TPVWSimplifier");
// testSimpleNoop
template<>
template<>
void object::test<1> ()
{
checkNoop(
"MULTILINESTRING ((9 9, 3 9, 1 4, 4 1, 9 1), (9 1, 2 4, 9 9))",
2);
}
// testSimple
template<>
template<>
void object::test<2> ()
{
checkSimplify(
"MULTILINESTRING ((9 9, 3 9, 1 4, 4 1, 9 1), (9 1, 6 3, 2 4, 5 7, 9 9))",
2,
"MULTILINESTRING ((9 9, 3 9, 1 4, 4 1, 9 1), (9 1, 2 4, 9 9))"
);
}
// testFreeRing
template<>
template<>
void object::test<3> ()
{
checkSimplify(
"MULTILINESTRING ((1 9, 9 9, 9 1), (1 9, 1 1, 9 1), (7 5, 8 8, 2 8, 2 2, 8 2, 7 5))",
{ 2 },
2,
"MULTILINESTRING ((1 9, 1 1, 9 1), (1 9, 9 9, 9 1), (8 8, 2 8, 2 2, 8 2, 8 8))"
);
}
// testNoFreeRing
template<>
template<>
void object::test<4> ()
{
checkSimplify(
"MULTILINESTRING ((1 9, 9 9, 9 1), (1 9, 1 1, 9 1), (5 5, 4 8, 2 8, 2 2, 4 2, 5 5), (5 5, 6 8, 8 8, 8 2, 6 2, 5 5))",
{},
2,
"MULTILINESTRING ((1 9, 1 1, 9 1), (1 9, 9 9, 9 1), (5 5, 2 2, 2 8, 5 5), (5 5, 8 2, 8 8, 5 5))"
);
}
// testConstraint
template<>
template<>
void object::test<5> ()
{
checkSimplify(
"MULTILINESTRING ((6 8, 2 8, 2.1 5, 2 2, 6 2, 5.9 5, 6 8))",
{},
"MULTILINESTRING ((1 9, 9 9, 6 5, 9 1), (1 9, 1 1, 9 1))",
1,
"MULTILINESTRING ((6 8, 2 8, 2 2, 6 2, 5.9 5, 6 8))"
);
}
} // namespace tut
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