1 /*****************************************************************************
2  *                                                                           *
3  *  Elmer, A Finite Element Software for Multiphysical Problems              *
4  *                                                                           *
5  *  Copyright 1st April 1995 - , CSC - IT Center for Science Ltd., Finland    *
6  *                                                                           *
7  *  This program is free software; you can redistribute it and/or            *
8  *  modify it under the terms of the GNU General Public License              *
9  *  as published by the Free Software Foundation; either version 2           *
10  *  of the License, or (at your option) any later version.                   *
11  *                                                                           *
12  *  This program is distributed in the hope that it will be useful,          *
13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
15  *  GNU General Public License for more details.                             *
16  *                                                                           *
17  *  You should have received a copy of the GNU General Public License        *
18  *  along with this program (in file fem/GPL-2); if not, write to the        *
19  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,         *
20  *  Boston, MA 02110-1301, USA.                                              *
21  *                                                                           *
22  *****************************************************************************/
23 
24 /*****************************************************************************
25  *                                                                           *
26  *  ElmerGUI helpers                                                         *
27  *                                                                           *
28  *****************************************************************************
29  *                                                                           *
30  *  Authors: Mikko Lyly, Juha Ruokolainen and Peter Råback                   *
31  *  Email:   Juha.Ruokolainen@csc.fi                                         *
32  *  Web:     http://www.csc.fi/elmer                                         *
33  *  Address: CSC - IT Center for Science Ltd.                                 *
34  *           Keilaranta 14                                                   *
35  *           02101 Espoo, Finland                                            *
36  *                                                                           *
37  *  Original Date: 15 Mar 2008                                               *
38  *                                                                           *
39  *****************************************************************************/
40 
41 #ifndef HELPERS_H
42 #define HELPERS_H
43 
44 #include "meshtype.h"
45 #include <QMatrix4x4>
46 
47 #if WITH_QT5
48 #define qreal float
49 #endif
50 
51 class Helpers
52 {
53  public:
54   Helpers();
55   ~Helpers();
56 
57   void invertMatrix(const qreal *a, qreal *b);
58   void crossProduct(qreal *a, qreal *b, qreal *c);
59   qreal vlen(qreal *a);
60   void normalize(qreal *a);
61 
62  private:
63 
64 };
65 
66 #endif // HELPERS_H
67