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(* $Id: plot.mli,v 1.2 2016/01/28 13:51:28 garrigue Exp $ *)

(* Plot: a library to plot graphs of functions easily *)

(* Adjust coordinates in the window so that it contains all points in
   the list. Can also be used as: adjust_size [minx, miny; maxx, maxy].
   After adjusting, opens a window and draw axis. *)
val adjust_size : (float * float) list -> unit

(* Create the graph of a function between minx and maxx.
   Passing this graph to adjust_size will ajust the window to display it. *)
val create_curve : (float -> float) -> (float * float) list

(* Draw the graph as a curve *)
val draw_curve : (float * float) list -> unit

(* The raw canvas (for debugging) *)
val canvas : Widget.canvas Widget.widget

(* The Tk main loop (to resize the window, etc...); stop with Ctrl-C *)
val loop : unit -> unit

(* A standard use of these functions is:

   #directory "+labltk";;
   #load "labltk.cma";;
   #load "plot.cmo";;
   open Plot ;;
   adjust_size [-5., 0.; 5., 0.] ;;
   let curve = create_curve (fun x -> (sin x) ** 2. -. 0.5) ;;
   adjust_size curve ;;
   draw_curve curve ;;

*)