Function TEST

source/MRTest/MRPrecisePredicatesTests.cpp:11–34

{

TEST( MRMesh, doSegmentSegmentIntersect )
{
    std::array<PreciseVertCoords2, 4> vs = 
    { 
        PreciseVertCoords2{ 0_v, Vector2i( -1,  0 ) }, //a
        PreciseVertCoords2{ 1_v, Vector2i{  1,  0 } }, //b

        PreciseVertCoords2{ 2_v, Vector2i(  0,  1 ) }, //c
        PreciseVertCoords2{ 3_v, Vector2i{  0, -1 } }  //d
    };

    auto res = doSegmentSegmentIntersect( vs );
    EXPECT_TRUE( res.doIntersect );
    EXPECT_TRUE( res.cIsLeftFromAB );

    std::swap( vs[2], vs[3] );
    res = doSegmentSegmentIntersect( vs );
    EXPECT_TRUE( res.doIntersect );
    EXPECT_TRUE( !res.cIsLeftFromAB );

    vs[3].pt.y = -5;
    res = doSegmentSegmentIntersect( vs );
    EXPECT_FALSE( res.doIntersect );
}

TEST( MRMesh, sosCCW )
{