math - How to select planes on image having intersecting lines? -


so have canvas of size mxn , lines defined set of 2 2d points on canvas belong them [(m1, n1), (m2, n2)...]. how devide canvas onto planes enclosed such lines?

example lines on image: enter image description here

lines given end points. want t planes formed line intersections , would-be line intersections if lines prolongated. can imagine them covering walls , other plane surfaces.


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