X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=helm%2FDEVEL%2Flablgtk%2Flablgtk_20000829-0.1.0%2Fexamples%2Flissajous.ml;fp=helm%2FDEVEL%2Flablgtk%2Flablgtk_20000829-0.1.0%2Fexamples%2Flissajous.ml;h=0000000000000000000000000000000000000000;hp=9d6cf3b1b7e05d205268f009b1509b74042ca6c4;hb=3ef089a4c58fbe429dd539af6215991ecbe11ee2;hpb=1c7fb836e2af4f2f3d18afd0396701f2094265ff diff --git a/helm/DEVEL/lablgtk/lablgtk_20000829-0.1.0/examples/lissajous.ml b/helm/DEVEL/lablgtk/lablgtk_20000829-0.1.0/examples/lissajous.ml deleted file mode 100644 index 9d6cf3b1b..000000000 --- a/helm/DEVEL/lablgtk/lablgtk_20000829-0.1.0/examples/lissajous.ml +++ /dev/null @@ -1,48 +0,0 @@ -(* $Id$ *) -(* Lissajous 図形 *) - -open GMain - - -let main () = - let window = GWindow.window ~border_width: 10 () in - window#event#connect#delete - ~callback:(fun _ -> prerr_endline "Delete event occured"; true); - window#connect#destroy ~callback:Main.quit; - let vbx = GPack.vbox ~packing:window#add () in - let quit = GButton.button ~label:"Quit" ~packing:vbx#add () in - quit#connect#clicked ~callback:window#destroy; - let area = GMisc.drawing_area ~width:200 ~height:200 ~packing:vbx#add () in - let drawing = area#misc#realize (); new GDraw.drawable (area#misc#window) in - let m_pi = acos (-1.) in - let c = ref 0. in - let expose_event _ = - drawing#set_foreground `WHITE; - drawing#rectangle ~filled:true ~x:0 ~y:0 ~width:200 ~height:200 (); - drawing#set_foreground `BLACK; -(* drawing#line x:0 y:0 x:150 y:150; - drawing#polygon filled:true [10,100; 35,35; 100,10; 10, 100]; -*) - let n = 200 in - let r = 100. in - let a = 3 in let b = 5 in - for i=0 to n do - let theta0 = 2.*.m_pi*.(float (i-1))/. (float n) in - let x0 = 100 + (truncate (r*.sin ((float a)*.theta0))) in - let y0 = 100 - (truncate (r*.cos ((float b)*.(theta0+. !c)))) in - let theta1 = 2.*.m_pi*.(float i)/.(float n) in - let x1 = 100 + (truncate (r*.sin((float a)*.theta1))) in - let y1 = 100 - (truncate (r*.cos((float b)*.(theta1+. !c)))) in - drawing#line ~x:x0 ~y:y0 ~x:x1 ~y:y1 - done; - false - in - area#event#connect#expose ~callback:expose_event; - let timeout _ = c := !c +. 0.01*.m_pi; - expose_event (); - true in - Timeout.add ~ms:500 ~callback:timeout; - window#show (); - Main.main () - -let _ = Printexc.print main()