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