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Diffstat (limited to 'script.it/layer/lineEngine.ml')
-rwxr-xr-x | script.it/layer/lineEngine.ml | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/script.it/layer/lineEngine.ml b/script.it/layer/lineEngine.ml new file mode 100755 index 0000000..3d15d9c --- /dev/null +++ b/script.it/layer/lineEngine.ml @@ -0,0 +1,68 @@ +module Make(Layer: Repr.PRINTER) = struct + + type point = Path.Point.t + + let mark point path = + let open Gg.V2 in + let point = Path.Point.get_coord point in + + let dist = 5. + and dist' = -5. in + + let path = Layer.move_to (point - (of_tuple (dist, dist))) path + |> Layer.line_to ( point + (of_tuple (dist, dist))) + |> Layer.move_to (point + (of_tuple (dist', dist))) + |> Layer.line_to ( point + (of_tuple (dist, dist'))) + in + path + + + type t = + { path: (Layer.t) + } + + type repr = Layer.t + + let create_path + : 'b -> t + = fun _ -> + { path = Layer.create () + } + + let start + : point -> point -> t -> t + = fun p1 _ { path } -> + let path = mark p1 path in + { path + } + + let line_to + : (point * point) -> (point * point) -> t -> t + = fun (p0, p1) _ {path} -> + let path = Layer.move_to (Path.Point.get_coord p0) path + |> Layer.line_to (Path.Point.get_coord p1) + |> mark p1 in + { path + } + + let quadratic_to + : (point * Gg.v2 * Gg.v2 * point) -> (point * Gg.v2 * Gg.v2 * point) -> t -> t + = fun (p0, ctrl0, ctrl1, p1) _ {path} -> + + let path = Layer.move_to (Path.Point.get_coord p0) path + |> Layer.quadratic_to ctrl0 ctrl1 (Path.Point.get_coord p1) + |> mark p1 in + + { path = path } + + let stop + : t -> t + = fun path -> path + + + let get + : t -> Layer.t + = fun {path; _} -> + path + +end |