122 lines
3.6 KiB
OCaml
122 lines
3.6 KiB
OCaml
(*我們先假設 P (i,j)，意思是當裡面有 i 行文，j 張圖的時候，存放的分頁資訊，其型別為 Pagination*)
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type pagination = {mutable isPagizable : bool; mutable noOfPages : int; mutable predecessor : int * int};;
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let t = 300;; (* 行數 *)
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let f = 25;; (* 圖數 *)
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let maxHeight = 27.0;;
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let minHeight = 20.0;;
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(*行屬性：height 高度，spaceHeight 其後空白高度，isPagizable 其後空白是否可分頁*)
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type line = {height : float; spaceHeight : float; mutable isPagizable : bool};;
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let tArray = Array.make (t+1) {height = 0.8; spaceHeight = 0.7; isPagizable = true};;
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let fArray = Array.make (f+1) {height = 12.0; spaceHeight = 1.1; isPagizable = true};;
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(*tArray與fArray 第0行是空行*)
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let _ = tArray.(0) <- {height = 0.0; spaceHeight = 0.0; isPagizable = false} in
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let _ = fArray.(0) <- {height = 0.0; spaceHeight = 0.0; isPagizable = false} in
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for i = 1 to t do
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if i / 9 == 3 then
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let _ = tArray.(i).isPagizable <- false in ()
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else
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()
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done
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(*連 p 0 0 都要加進去所以需要輸入 t+1 和 f+1 的矩陣*)
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let p = Array.init (t+1) (fun x -> (Array.init (f+1) (fun x -> {isPagizable = false; noOfPages = -1; predecessor=(-1,-1)})) );;
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let nil = -1;; (*condition value*)
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(* 圖片 k 對到哪一個文字*)
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let referId k =
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if k <= 1 then 1
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else if k <= 3 then 9
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else if k <= 6 then 40
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else if k==7 then 42
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else if k <= 10 then 70
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else if k == 11 then 80
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else if k <= 15 then 112
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else if k == 16 then 120
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else if k == 17 then 130
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else if k <= 22 then 179
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else 180
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(*組頁*)
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let makeOnePage (p : pagination array array) a b i j =
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if a == i && b == j then false
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else if p.(a).(b).isPagizable == false then false
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else if (referId j) > i || (referId j) == 0 then false
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else
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let textAndSpaceHeight =
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if a == i then 0.0
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else
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let textHeight = Array.fold_right (+.) (Array.map (fun x -> x.height) (Array.sub tArray (a+1) (i-a))) 0.0 in
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let textSpaceHeight = Array.fold_right (+.) (Array.map (fun x -> x.spaceHeight) (Array.sub tArray (a+1) (i-a-1))) 0.0 in
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textHeight +. textSpaceHeight in
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let figAndSpaceHeight =
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if b == j then 0.0
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else
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let figHeight = Array.fold_right (+.) (Array.map (fun x -> x.height) (Array.sub fArray (b+1) (j-b))) 0.0 in
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let figSpaceHeight = Array.fold_right (+.) (Array.map (fun x -> x.spaceHeight) (Array.sub fArray (b+1) (j-b-1))) 0.0 in
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figHeight +. figSpaceHeight in
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let inputHeight = textAndSpaceHeight +. figAndSpaceHeight in
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if inputHeight > maxHeight then false
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else if inputHeight < minHeight then false
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else true;;
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(*以下是分頁程式*)
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let pagize p =
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let _ = p.(0).(0) <- {isPagizable = true; noOfPages = 0; predecessor = (nil , nil)} in
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for i=0 to t do
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for j=0 to f do
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for a = 0 to i do
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for b = 0 to j do
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if i != 0 || j != 0 then
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let canMakeOnePage = makeOnePage p a b i j in
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if canMakeOnePage then
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let _ = p.(i).(j).isPagizable <- true in
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let _ = p.(i).(j).predecessor <- (a, b) in
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let _ = p.(i).(j).noOfPages <- p.(i).(j).noOfPages + 1 in
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()
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else
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()
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done
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done
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done
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done;;
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pagize p;;
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for i=0 to t do
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for j=0 to f do
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let x1,y1 = p.(i).(j).predecessor in
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Printf.printf "%d\t%d->%d\t%d\n" i j x1 y1
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done
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done;;
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let costFuncOfPredecessor p i j pred =
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let tracePage = ref [(i, j)] in
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let movablePred = ref pred in
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let _ =
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while !movablePred != (-1, -1) do
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let _ = tracePage := !movablePred :: !tracePage in
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let (x, y) = !movablePred in
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let _ = movablePred := p.(x).(y).predecessor in Printf.printf "%d\t%d\n" x y
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done
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in !tracePage;;
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(*costFuncOfPredecessor p 100 15 (98, 15);;*)
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