29 os <<
"Seg at " << seg.
plane <<
" from " << seg.
cellLo
std::ostream & operator<<(std::ostream &os, const Segment &seg)
bool operator==(const Segment &rhs) const
Just the upstream or downstream part, just coordinates.
Window the line must pass through from (z,y0)-(z,y1)
SubSeg GetSubSeg(Direction dir) const