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Add PrecisionReducer test for CoordinateSequence.add bug #962

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Sep 22, 2023
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Add PrecisionReducer test for CoordinateSequence.add bug #962

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17 changes: 13 additions & 4 deletions tests/unit/operation/overlayng/PrecisionReducerTest.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -27,11 +27,11 @@ struct test_precisionreducer_data {
WKTWriter w;

void
checkReduce(const std::string& wkt, double gridSize, const std::string& wkt_expected)
checkReduce(const std::string& wkt, double scale, const std::string& wkt_expected)
{
std::unique_ptr<Geometry> geom = r.read(wkt);
std::unique_ptr<Geometry> expected = r.read(wkt_expected);
PrecisionModel pm(1.0/gridSize);
PrecisionModel pm(scale);
std::unique_ptr<Geometry> result = PrecisionReducer::reducePrecision(geom.get(), &pm);
ensure_equals_geometry(result.get(), expected.get());
}
Expand Down Expand Up @@ -142,7 +142,7 @@ template<>
void object::test<11> ()
{
checkReduce("LINESTRING(-3 6, 9 1)",
2, "LINESTRING (-2 6, 10 2)");
0.5, "LINESTRING (-2 6, 10 2)");
}

// testCollapsedLine
Expand Down Expand Up @@ -170,9 +170,18 @@ void object::test<14> ()
{
checkReduce("POLYGON ((2 1, 3 1, 3 2, 2 1))",
// checkReduce("POLYGON ((0 0, 4 0, 4 4, 0 4, 0 0), (1 1, 1 2, 2 1, 1 1), (1 2, 1 3, 2 3, 1 2), (2 3, 3 3, 3 2, 2 3))",
1.0/10, "POLYGON ((2 1, 3 1, 3 2, 2 1))");
10, "POLYGON ((2 1, 3 1, 3 2, 2 1))");
}

// see https://github.com/libgeos/geos/issues/811
template<>
template<>
void object::test<15> ()
{
checkReduce("POLYGON ((127.117461568 34.562519572, 127.117483252 34.5624884690001, 127.117603304 34.562319127, 127.117607152 34.562312309, 127.117607012 34.562312359, 127.117254733 34.5621607510001, 127.117746661 34.5620659730001, 127.117603496 34.5623196400001, 127.117484065 34.562488982, 127.117462315 34.562520066, 127.117245225 34.562385186, 127.117461568 34.562519572))",
100000,
"POLYGON ((127.11775 34.56207, 127.11725 34.56216, 127.11761 34.56231, 127.11775 34.56207))");
}


} // namespace tut
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