/[ascend]/trunk/models/distance_calc.a4c
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Revision 576 - (hide annotations) (download) (as text)
Tue May 9 03:42:08 2006 UTC (18 years, 1 month ago) by johnpye
File MIME type: text/x-ascend
File size: 2219 byte(s)
Changed all cases of *.fixed := {TRUE,FALSE} to 'FIX' and 'FREE' statements.
1 aw0a 1 REQUIRE "atoms.a4l";
2     (* => atoms.a4l, measures.a4l, system.a4l, basemodel.a4l *)
3     PROVIDE "distance_calc.a4c";
4     (*
5     * This file is part of the ASCEND Modeling Library and is released
6     * under the GNU Public License as described at the end of this file.
7     *
8     * This model is the second example in "Solved simple models with ASCEND."
9     *)
10    
11     MODEL travel_distance;
12     kmax IS_A integer_constant;
13     v[1..2*kmax+1] IS_A speed;
14     delta_time IS_A time;
15     d IS_A distance;
16    
17     d = SUM[v[2*k-1]+4*v[2*k]+v[2*k+1] SUCH_THAT k IN
18     [1..kmax]]*delta_time/6;
19    
20     END travel_distance;
21    
22     MODEL test_travel_distance REFINES travel_distance;
23     kmax :== 5;
24    
25     METHODS
26    
27     METHOD specify;
28 johnpye 576 FIX v[1..2*kmax+1];
29     FIX delta_time;
30 aw0a 1 END specify;
31    
32     METHOD values;
33     v[1] := 100 {ft/min};
34     v[2] := 120 {ft/min};
35     v[3] := 130 {ft/min};
36     v[4] := 135 {ft/min};
37     v[5] := 140 {ft/min};
38     v[6] := 160 {ft/min};
39     v[7] := 180 {ft/min};
40     v[8] := 210 {ft/min};
41     v[9] := 240 {ft/min};
42     v[10] := 220 {ft/min};
43     v[11] := 200 {ft/min};
44     delta_time := 10 {s};
45     END values;
46    
47     END test_travel_distance;
48    
49     (*
50     * Travel distance small example
51     * By Arthur Westerberg
52     * Part of the ASCEND Library
53     * $Date: 1998/06/17 18:59:42 $
54     * $Revision: 1.2 $
55     * $Author: mthomas $
56     * $Source: /afs/cs.cmu.edu/project/ascend/Repository/models/distance_calc.a4c,v $
57     *
58     * This file is part of the ASCEND Modeling Library.
59     *
60     * Copyright (C) 1997 Carnegie Mellon University
61     *
62     * The ASCEND Modeling Library is free software; you can redistribute
63     * it and/or modify it under the terms of the GNU General Public
64     * License as published by the Free Software Foundation; either
65     * version 2 of the License, or (at your option) any later version.
66     *
67     * The ASCEND Modeling Library is distributed in hope that it
68     * will be useful, but WITHOUT ANY WARRANTY; without even the implied
69     * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
70     * See the GNU General Public License for more details.
71     *
72     * You should have received a copy of the GNU General Public License
73     * along with the program; if not, write to the Free Software
74     * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139 USA. Check
75     * the file named COPYING.
76     *)

john.pye@anu.edu.au
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