Why reinventing the wheel?

Clipping algorithms are the basis of most computer graphics book.

IMHO Cohen–Sutherland is quite straight forward...

Nota bene: you need spherical geometry to calculate "lines" (great circles) connecting "corners". But then it's the same principle.

Latitudes are not the shortest connections between 2 points!!!

Cheers Rolf

In reply to Re^3: Permutation and comparison loop by LanX
in thread Permutation and comparison loop by spacegeologist

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