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Add PointLocation.isOnSegment, refactor
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| // | ||
| // Test Suite for geos::algorithm::PointLocation | ||
| // Ported from JTS junit/algorithm/PointLocationTest.java | ||
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| #include <tut/tut.hpp> | ||
| #include <utility.h> | ||
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| // geos | ||
| #include <geos/geom/Coordinate.h> | ||
| #include <geos/algorithm/PointLocation.h> | ||
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| // std | ||
| #include <sstream> | ||
| #include <string> | ||
| #include <memory> | ||
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| using geos::algorithm::PointLocation; | ||
| using geos::geom::CoordinateXY; | ||
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| namespace tut { | ||
| // | ||
| // Test Group | ||
| // | ||
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| // dummy data, not used | ||
| struct test_PointLocation_data { | ||
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| geos::io::WKTReader r_; | ||
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| void | ||
| checkOnLine(double x, double y, const std::string& wktLine, bool isExpected) | ||
| { | ||
| CoordinateXY p(x, y); | ||
| std::unique_ptr<CoordinateSequence> line = readPts(wktLine); | ||
| bool isOnLine = PointLocation::isOnLine(p, line.get()); | ||
| ensure(isOnLine == isExpected); | ||
| } | ||
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| void | ||
| checkOnSegment(double x, double y, const std::string& wktLine, bool isExpected) | ||
| { | ||
| CoordinateXY p(x, y); | ||
| std::unique_ptr<CoordinateSequence> line = readPts(wktLine); | ||
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| bool isOnSeg = PointLocation::isOnSegment(p, line->getAt(0), line->getAt(1)); | ||
| ensure(isOnSeg == isExpected); | ||
| } | ||
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| std::unique_ptr<CoordinateSequence> | ||
| readPts(const std::string& wkt) | ||
| { | ||
| std::unique_ptr<Geometry> geom = r_.read(wkt); | ||
| const LineString* line = dynamic_cast<LineString*>(geom.get()); | ||
| if (line) | ||
| return line->getCoordinatesRO()->clone(); | ||
| else | ||
| return nullptr; | ||
| } | ||
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| }; | ||
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| typedef test_group<test_PointLocation_data> group; | ||
| typedef group::object object; | ||
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| group test_PointLocation_data("geos::algorithm::PointLocation"); | ||
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| // | ||
| // Test Cases | ||
| // | ||
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| // testOnLineOnVertex | ||
| template<> | ||
| template<> | ||
| void object::test<1> () | ||
| { | ||
| checkOnLine(20, 20, "LINESTRING (0 00, 20 20, 30 30)", true); | ||
| } | ||
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| // testOnLineInSegment | ||
| template<> | ||
| template<> | ||
| void object::test<2> () | ||
| { | ||
| checkOnLine(10, 10, "LINESTRING (0 0, 20 20, 0 40)", true); | ||
| checkOnLine(10, 30, "LINESTRING (0 0, 20 20, 0 40)", true); | ||
| } | ||
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| // testNotOnLine | ||
| template<> | ||
| template<> | ||
| void object::test<3> () | ||
| { | ||
| checkOnLine(0, 100, "LINESTRING (10 10, 20 10, 30 10)", false); | ||
| } | ||
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| // testOnSegment | ||
| template<> | ||
| template<> | ||
| void object::test<4> () | ||
| { | ||
| checkOnSegment(5, 5, "LINESTRING(0 0, 9 9)", true); | ||
| checkOnSegment(0, 0, "LINESTRING(0 0, 9 9)", true); | ||
| checkOnSegment(9, 9, "LINESTRING(0 0, 9 9)", true); | ||
| } | ||
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| // testNotOnSegment | ||
| template<> | ||
| template<> | ||
| void object::test<5> () | ||
| { | ||
| checkOnSegment(5, 6, "LINESTRING(0 0, 9 9)", false); | ||
| checkOnSegment(10, 10, "LINESTRING(0 0, 9 9)", false); | ||
| checkOnSegment(9, 9.00001, "LINESTRING(0 0, 9 9)", false); | ||
| } | ||
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| // testOnZeroLengthSegment | ||
| template<> | ||
| template<> | ||
| void object::test<6> () | ||
| { | ||
| checkOnSegment(1, 1, "LINESTRING(1 1, 1 1)", true); | ||
| checkOnSegment(1, 2, "LINESTRING(1 1, 1 1)", false); | ||
| } | ||
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| } // namespace tut | ||
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