%Time    Sec.     #calls   sec/call  F  name
58.21 1889.8621  28882029   0.000065     main::SegmentIntersection
30.60  993.5924        1  993.592408     main::find_unintersected_edges
11.12  361.0416  86646087   0.000004     main::Determinant
 0.05    1.7613        1   1.761285     main::find_unique_edges