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|
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
|
