Parasitemia/Parasitemia/Utils.fs

   1 module Utils
   2
   3 open System.Diagnostics
   4
   5 open Types
   6
   7 let inline roundInt v = v |> round |> int
   8
   9 let inline dprintfn fmt =
  10     Printf.ksprintf System.Diagnostics.Debug.WriteLine fmt
  11
  12 let mutable log : (string -> unit) =
  13     fun m -> ()
  14
  15 let logTime (m: string) (f: unit -> 'a) : 'a =
  16     let sw = Stopwatch()
  17     sw.Start()
  18     let res = f ()
  19     sw.Stop()
  20     log <| sprintf "%s (time: %d ms)" m sw.ElapsedMilliseconds
  21     res
  22
  23 let inline lineFromTwoPoints (p1: PointD) (p2: PointD) : Line =
  24     let a = (p1.Y - p2.Y) / (p1.X - p2.X)
  25     let b = -(p2.X * p1.Y - p1.X * p2.Y) / (p1.X - p2.X)
  26     Line(a, b)
  27
  28 let inline pointFromTwoLines (l1: Line) (l2: Line) : PointD =
  29     let x = -(l1.B - l2.B) / (l1.A - l2.A)
  30     let y = -(l2.A * l1.B - l1.A * l2.B) / (l1.A - l2.A)
  31     PointD(x, y)
  32
  33 let inline linePassThroughSegment (l: Line) (p1: PointD) (p2: PointD) : bool =
  34     let p = pointFromTwoLines l (lineFromTwoPoints p1 p2)
  35     sign (p.X - p1.X) <> sign (p.X - p2.X)
  36
  37 let inline squaredDistanceTwoPoints (p1: PointD) (p2: PointD) =
  38     (p1.X - p2.X) ** 2.f + (p1.Y - p2.Y) ** 2.f
  39
  40 let distanceTwoPoints (p1: PointD) (p2: PointD) =
  41     squaredDistanceTwoPoints p1 p2 |> sqrt
  42
  43 let countCells (cells: Cell list) : int * int =
  44     cells |> List.fold (fun (total, infected) { cellClass = cellClass } ->
  45         match cellClass with
  46         | HealthyRBC -> (total + 1, infected)
  47         | InfectedRBC -> (total + 1, infected + 1)
  48         | Peculiar -> (total, infected)) (0, 0)