7 apply uv faces into line \ and into two lines that bound through rect between
6 bind two lines through rect between
5 choose rect inside chosen line \ \ apply walkin\ into chosen rect inside line
4 pick walkin\ into chosen line from passd \
3 pick allocate into forward into chosen line
2 apply walkin\ into chosen line
1 pick straight lines inside rect
it may be call\d \ \space\ \trainer\ \a trainer for perspective dra\in
and there i wanted to create \well\ bound\ri\s for lines \
\i have 4 cases to handle\ \ into direction passd from atan
and 4 cases on further precision \ (then it almost same but handles remainin rect\ applied to line, i may use choose rect and walkin \ few times for same line \ for different rect \ \ sum angle\ would be different)
that allow draw\ uv for map through different cin interface \
how to cover these remainin\ 4 cases \ \ and their belongings \ \ it is fn\nal approach \
