#[{0,0}, {1,1}, {2, 2}] => [{{0,0}, {1, 1}}, {{1, 1}, {2, 2}}]
points = [{0,0}, {1,1}, {2, 2}]

points
|> Stream.chunk(2, 1)
|> Enum.map(&List.to_tuple/1)
|> IO.inspect