aboutsummaryrefslogtreecommitdiff
path: root/path/draw.ml
diff options
context:
space:
mode:
Diffstat (limited to 'path/draw.ml')
-rwxr-xr-xpath/draw.ml245
1 files changed, 0 insertions, 245 deletions
diff --git a/path/draw.ml b/path/draw.ml
deleted file mode 100755
index e628dbc..0000000
--- a/path/draw.ml
+++ /dev/null
@@ -1,245 +0,0 @@
-open StdLabels
-module Path = Brr_canvas.C2d.Path
-
-module Point = Point
-module Path_Builder = Builder.Make(Point)
-module Builder = Builder
-module WireFrame = WireFramePrinter
-
-(*
-(** Translate the point in the canva area *)
-let translate_point
- : area:Gg.v2 -> Gg.v2 -> (float * float)
- = fun ~area point ->
- let x, y = Gg.V2.(to_tuple @@ mul area point) in
- x, ((Gg.V2.y area) -. y)
-*)
-
-let translate_point
- : area:Gg.v2 -> Gg.v2 -> (float * float)
- = fun ~area point ->
- let _ = area in
-
- let x, y = Gg.V2.(to_tuple @@ point) in
- x, y
-
-let translate_point'
- : area:Gg.v2 -> Gg.v2 -> Gg.v2 -> (float * float)
- = fun ~area vect point ->
- let open Gg.V2 in
- translate_point ~area
- (point + vect)
-
-(* Draw a straight line between two points *)
-let line
- : Gg.v2 -> p1:Point.t -> Path.t -> unit
- = fun area ~p1 path ->
- let x, y = translate_point ~area (Point.get_coord p1) in
- Path.line_to path ~x ~y
-
-(* Draw a simple bezier curve from the three given points *)
-let three_points
- : Gg.v2 -> p0:Point.t -> p1:Point.t -> p2:Point.t -> Path.t -> unit
- = fun area ~p0 ~p1 ~p2 path ->
- let p0 = Point.get_coord p0
- and p1 = Point.get_coord p1
- and p2 = Point.get_coord p2 in
- let bezier = Shapes.Bezier.three_points_quadratic p0 p1 p2
- |> Shapes.Bezier.quadratic_to_cubic in
- let cx, cy = translate_point ~area bezier.Shapes.Bezier.ctrl0
- and cx', cy' = translate_point ~area bezier.Shapes.Bezier.ctrl1
- and x, y = translate_point ~area bezier.Shapes.Bezier.p1 in
-
- Path.ccurve_to path
- ~cx ~cy
- ~cx' ~cy'
- ~x ~y
-
-let multi_points
- : ?connexion:Gg.v2 -> Gg.v2 -> Point.t list -> Path.t -> unit
- = fun ?connexion area points path ->
-
- let (let*) v f =
- match v with
- | Ok beziers -> f beziers
- | _ -> () in
-
- let points = List.map ~f:Point.get_coord points in
-
- let* beziers = Shapes.Bspline.to_bezier ?connexion1:connexion points in
- Array.iter beziers
- ~f:(fun bezier ->
- let cx, cy = translate_point ~area bezier.Shapes.Bezier.ctrl0
- and cx', cy' = translate_point ~area bezier.Shapes.Bezier.ctrl1
- and x, y = translate_point ~area bezier.Shapes.Bezier.p1 in
-
- Path.ccurve_to path
- ~cx ~cy
- ~cx' ~cy'
- ~x ~y
- )
-
-let circle
- : Gg.v2 -> center:Gg.v2 -> float -> Path.t -> Path.t
- = fun area ~center r path ->
-
- let cx, cy = translate_point ~area center in
- Path.arc
- path
- ~cx ~cy
- ~r
- ~start:0.
- ~stop:Gg.Float.two_pi;
- path
-
-type bezier = Path_Builder.bezier
-
-type path =
- | Empty
- | Line of Point.t * Point.t
- | Three_point of Point.t * Point.t * Point.t
- | Curve of bezier array
-
-type t =
- { id : int
- ; path : path }
-
-let move_to
- : area:Gg.v2 -> Brr_canvas.C2d.Path.t -> path -> unit
- = fun ~area canvaPath path ->
-
- match path with
- | Empty -> ()
- | Line (p0, _)
- | Three_point (p0, _, _) ->
- let x, y = translate_point ~area (Point.get_coord p0) in
- Path.move_to canvaPath ~x ~y
- | Curve beziers ->
- try
- let bezier = Array.get beziers 0 in
- let x, y = translate_point ~area (Point.get_coord bezier.p0) in
- Path.move_to canvaPath ~x ~y
- with _ -> ()
-
-let draw
- : ?connexion:Point.t -> area:Gg.v2 -> Brr_canvas.C2d.Path.t -> path -> unit
- = fun ?connexion ~area canvaPath path ->
- match connexion, path with
-
- | _, Empty -> ()
- | None, Line (_, p1) ->
- ignore @@ line area ~p1 canvaPath
-
- | Some p0, Line (p1, p2)
- | None, Three_point (p0, p1, p2)
- | Some _, Three_point (p0, p1, p2) ->
- ignore @@ three_points area ~p0 ~p1 ~p2 canvaPath
-
- | _, Curve beziers ->
- Array.iter beziers
- ~f:(fun bezier ->
-
- let cx, cy = translate_point ~area bezier.Path_Builder.ctrl0
- and cx', cy' = translate_point ~area bezier.Path_Builder.ctrl1
- and x, y = translate_point ~area (Point.get_coord bezier.Path_Builder.p1) in
-
- Path.ccurve_to canvaPath
- ~cx ~cy
- ~cx' ~cy'
- ~x ~y
- )
-
-let go_back
- : ?connexion:Point.t -> area:Gg.v2 -> Brr_canvas.C2d.Path.t -> path -> unit
- = fun ?connexion ~area canvaPath path ->
- let vect = Gg.V2.of_polar @@ Gg.V2.v
- 20.
- (Float.neg Gg.Float.pi_div_4)
- in
- match connexion, path with
- | _, Empty -> ()
- | _, Three_point (p0, p1, p2) ->
- let open Point in
- let p0' = p0 + vect
- and p1' = p1 + vect
- and p2' = p2 + vect in
-
- let x, y = translate_point' ~area vect @@ Point.get_coord p2 in
- Path.line_to canvaPath ~x ~y;
- ignore @@ three_points area ~p0:p2' ~p1:p1' ~p2:p0' canvaPath
- | _, Curve beziers ->
- let last = Array.get beziers ((Array.length beziers) -1) in
-
- let x, y =
- (Point.get_coord last.p1)
- |> translate_point' vect ~area in
-
- Path.line_to canvaPath ~x ~y;
-
- for i = 1 to Array.length beziers do
-
- let i = (Array.length beziers) - i in
- let bezier = Array.get beziers i in
-
- let cx, cy = translate_point' vect ~area bezier.ctrl1
- and cx', cy' = translate_point' vect ~area bezier.ctrl0
- and x, y = translate_point' vect ~area (Point.get_coord bezier.p0) in
-
- Path.ccurve_to canvaPath
- ~cx ~cy
- ~cx' ~cy'
- ~x ~y
- done;
-
- | _ -> ()
-
-type quick_path = Point.t list * bezier list
-
-let id = ref 0
-
-let to_path
- : quick_path -> t
- = fun (points, beziers) ->
-
- incr id;
- let id = !id in
- match beziers, points with
- | [], [] -> {id; path = Empty}
- | [], p0::p1::[] -> {id; path=Line (p0, p1)}
- | [], p0::p1::p2::[] -> {id; path=Three_point (p0, p1, p2)}
- | [], points ->
-
- let (let*) v f =
- match v with
- | Ok beziers -> f beziers
- | _ -> {id; path=Empty} in
-
- let points' = List.map ~f:Point.get_coord points in
- let* beziers = Shapes.Bspline.to_bezier points' in
- let curves = Path_Builder.points_to_beziers points beziers in
- {id; path=Curve curves}
- | beziers, _ ->
- let (let*) v f =
- match v with
- | Ok beziers -> f beziers
- | _ -> {id; path=Curve (Array.of_list beziers)} in
-
- let connexion = match beziers with
- | hd::_ -> Some (Point.get_coord hd.p1)
- | _ -> None in
-
- let* beziers' = Shapes.Bspline.to_bezier
- ?connexion1:connexion
- (List.map points ~f:Point.get_coord) in
-
-
- let curves = Path_Builder.points_to_beziers points beziers' in
-
-
- (* Create a new array with both lenght *)
- let t = Array.append
- curves
- (Array.of_list beziers)
- in
-
- {id; path = Curve t}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 17:05:09 +0000