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49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
#include "testing/testing.hpp"
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#include "geometry/line2d.hpp"
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#include "geometry/point2d.hpp"
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#include "geometry/segment2d.hpp"
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namespace line2d_tests
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{
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using namespace m2;
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double const kEps = 1e-12;
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using Result = IntersectionResult;
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using Type = Result::Type;
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Result Intersect(Line2D const & lhs, Line2D const & rhs)
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{
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return Intersect(lhs, rhs, kEps);
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}
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UNIT_TEST(LineIntersection_Smoke)
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{
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{
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Line2D const line(Segment2D(PointD(0, 0), PointD(1, 0)));
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TEST_EQUAL(Intersect(line, line).m_type, Type::Infinity, ());
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}
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{
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Line2D const lhs(Segment2D(PointD(0, 0), PointD(1, 1)));
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Line2D const rhs(Segment2D(PointD(-10, -10), PointD(-100, -100)));
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TEST_EQUAL(Intersect(lhs, rhs).m_type, Type::Infinity, ());
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}
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{
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Line2D const lhs(Segment2D(PointD(0, 0), PointD(10, 10)));
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Line2D const rhs(Segment2D(PointD(10, 11), PointD(0, 1)));
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TEST_EQUAL(Intersect(lhs, rhs).m_type, Type::Zero, ());
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}
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{
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Line2D const lhs(Segment2D(PointD(10, 0), PointD(9, 10)));
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Line2D const rhs(Segment2D(PointD(-10, 0), PointD(-9, 10)));
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auto const result = Intersect(lhs, rhs);
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TEST_EQUAL(result.m_type, Type::One, ());
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TEST(AlmostEqualAbs(result.m_point, PointD(0, 100), kEps), (result.m_point));
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}
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}
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} // namespace line2d_tests
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