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117 | -- --
-- procedure Copyright (c) Dmitry A. Kazakov --
-- Oscilloscope_Plotter Luebeck --
-- Plotting using oscilloscope Winter, 2012 --
-- --
-- Last revision : 15:58 22 Jan 2012 --
-- --
-- This library is free software; you can redistribute it and/or --
-- modify it under the terms of the GNU General Public License as --
-- published by the Free Software Foundation; either version 2 of --
-- the License, or (at your option) any later version. This library --
-- is distributed in the hope that it will be useful, but WITHOUT --
-- ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. You should have --
-- received a copy of the GNU General Public License along with --
-- this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from --
-- this unit, or you link this unit with other files to produce an --
-- executable, this unit does not by itself cause the resulting --
-- executable to be covered by the GNU General Public License. This --
-- exception does not however invalidate any other reasons why the --
-- executable file might be covered by the GNU Public License. --
--____________________________________________________________________--
with Ada.Exceptions; use Ada.Exceptions;
with Ada.Text_IO; use Ada.Text_IO;
with Glib; use Glib;
with Gtk.Missed; use Gtk.Missed;
with Gtk.Oscilloscope; use Gtk.Oscilloscope;
with Gtk.Widget; use Gtk.Widget;
with Gtk.Window; use Gtk.Window;
with Ada.Numerics.Elementary_Functions;
with Gtk.Layered;
with Gtk.Main;
procedure Oscilloscope_Plotter is
Window : Gtk_Window;
begin
Gtk.Main.Init;
Gtk.Window.Gtk_New (Window);
Window.Set_Title ("Test plotting");
Window.On_Delete_Event (Gtk.Missed.Delete_Event_Handler'Access);
Window.On_Destroy (Gtk.Missed.Destroy_Handler'Access);
declare
Curve : Channel_Number;
Oscilloscope : Gtk_Oscilloscope;
begin
Gtk_New (Oscilloscope);
Add (Window, Oscilloscope);
Oscilloscope.Set_Manual_Sweep (False);
--
-- Configuring the lower axis
--
Oscilloscope.Set_Frozen (Lower, True); -- No sweeping
Oscilloscope.Set_Time_Scale (Lower, False); -- No scale (slider)
Oscilloscope.Set_Time_Grid (Lower, True); -- Grid
Oscilloscope.Set_Time_Axis
( Lower,
True, -- Visible
False -- As plain numbers
);
Oscilloscope.Get_Sweeper (Lower).Configure
( Value => 0.0,
Lower => 0.0,
Upper => 20.0,
Step_Increment => 0.1,
Page_Increment => 5.0,
Page_Size => 10.0
);
--
-- Adding the channel
--
Curve :=
Add_Channel
( Widget => Oscilloscope,
Mode => Gtk.Layered.Linear, -- Linear interpolation
Color => RGB (0.0, 0.0, 0.7),
Sweeper => Lower
);
--
-- Configuring the left axis for this channel (and its group)
--
Oscilloscope.Set_Group (Left, Oscilloscope.Get_Group (Curve));
Oscilloscope.Set_Values_Axis (Left, True);
Oscilloscope.Set_Values_Scale (Left, False);
Oscilloscope.Set_Values_Grid (Left, True);
Oscilloscope.Set_Values_Axis_Width (Left, 60);
--
-- Pushing the data into the channel's buffer
--
declare
use Ada.Numerics.Elementary_Functions;
X : Float := 0.0;
begin
loop
Oscilloscope.Feed
( Channel => Curve,
T => GDouble (X),
V => GDouble (sin (X * 7.0) * exp (X))
);
X := X + 0.001;
exit when X > 10.0;
end loop;
end;
end;
Window.Set_Size_Request (400, 300);
Show_All (Window);
Gtk.Main.Main;
exception
when Error : others =>
Put_Line ("Error: " & Exception_Information (Error));
end Oscilloscope_Plotter;
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