1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
-- $Id: x05a.adb 11680 2011-03-27 17:57:51Z airwin $
-- Histogram demo.
-- Draws a histogram from sample data.
-- Copyright (C) 2007 Jerry Bauck
-- This file is part of PLplot.
-- PLplot is free software; you can redistribute it and/or modify
-- it under the terms of the GNU Library General Public License as published
-- by the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
-- PLplot 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 Library General Public License for more details.
-- You should have received a copy of the GNU Library General Public License
-- along with PLplot; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
with
Ada.Numerics,
Ada.Numerics.Long_Elementary_Functions,
PLplot_Auxiliary,
PLplot_Traditional;
use
Ada.Numerics,
Ada.Numerics.Long_Elementary_Functions,
PLplot_Auxiliary,
PLplot_Traditional;
procedure x05a is
NPTS : constant Integer := 2047;
data : Real_Vector(0 .. NPTS - 1);
delt : Long_Float; -- delta is a reserved word in Ada.
begin
-- Parse and process command line arguments
plparseopts(PL_PARSE_FULL);
-- Initialize plplot
plinit;
-- Fill up data points
delt := 2.0 * pi / Long_Float(NPTS);
for i in data'range loop
data(i) := sin(Long_Float(i) * delt);
end loop;
plcol0(1);
plhist(data, -1.1, 1.1, 44, 0);
plcol0(2);
pllab("#frValue", "#frFrequency",
"#frPLplot Example 5 - Probability function of Oscillator");
plend;
end x05a;
|
