Parasitemia/Parasitemia/Types.fs

   1 module Types
   2
   3 open System
   4 open System.Drawing
   5
   6 open Emgu.CV
   7 open Emgu.CV.Structure
   8
   9 type Ellipse (cx: float, cy: float, a: float, b: float, alpha: float) =
  10     member this.Cx = cx
  11     member this.Cy = cy
  12     member this.A = a
  13     member this.B = b
  14     member this.Alpha = alpha
  15     member this.Area = a * b * Math.PI
  16
  17     // Does the ellipse contain the point (x, y)?.
  18     member this.Contains x y =
  19         ((x - cx) * cos alpha + (y - cy) * sin alpha) ** 2.0 / a ** 2.0 + ((x - cx) * sin alpha - (y - cy) * cos alpha) ** 2.0 / b ** 2.0 <= 1.0
  20
  21     member this.CutAVericalLine (y: float) : bool =
  22         a ** 2.0 + b ** 2.0 - 2.0 * y ** 2.0 + 4.0 * y * cx - 2.0 * cx ** 2.0 + a ** 2.0 * cos (2.0 * alpha) - b ** 2.0 * cos (2.0 * alpha) > 0.0
  23
  24     member this.CutAnHorizontalLine (x: float) : bool =
  25         a ** 2.0 + b ** 2.0 - 2.0 * x ** 2.0 + 4.0 * x * cy - 2.0 * cy ** 2.0 - a ** 2.0 * cos (2.0 * alpha) + b ** 2.0 * cos (2.0 * alpha) > 0.0
  26
  27     member this.isOutside (width: float) (height: float) =
  28         this.Cx < 0.0 || this.Cx >= width ||
  29         this.Cy < 0.0 || this.Cy >= height ||
  30         this.CutAVericalLine 0.0 || this.CutAVericalLine width ||
  31         this.CutAnHorizontalLine 0.0 || this.CutAnHorizontalLine height
  32
  33
  34 type CellClass = HealthyRBC | InfectedRBC | Peculiar
  35
  36 type Cell = {
  37     cellClass: CellClass
  38     center: Point
  39     elements: Matrix<byte> }
  40
  41 [<Struct>]
  42 type Line (a: float, b: float) =
  43     member this.A = a
  44     member this.B = b
  45
  46 [<Struct>]
  47 type PointD (x: float, y: float) =
  48     member this.X = x
  49     member this.Y = y
  50