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Comparing trunk/OOPSE-2.0/src/math/SquareMatrix3.hpp (file contents):
Revision 1644 by tim, Mon Oct 25 22:46:19 2004 UTC vs.
Revision 1930 by gezelter, Wed Jan 12 22:41:40 2005 UTC

# Line 1 | Line 1
1 < /*
2 < * Copyright (C) 2000-2004  Object Oriented Parallel Simulation Engine (OOPSE) project
3 < *
4 < * Contact: oopse@oopse.org
5 < *
6 < * This program is free software; you can redistribute it and/or
7 < * modify it under the terms of the GNU Lesser General Public License
8 < * as published by the Free Software Foundation; either version 2.1
9 < * of the License, or (at your option) any later version.
10 < * All we ask is that proper credit is given for our work, which includes
11 < * - but is not limited to - adding the above copyright notice to the beginning
12 < * of your source code files, and to any copyright notice that you may distribute
13 < * with programs based on this work.
14 < *
15 < * This program is distributed in the hope that it will be useful,
16 < * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 < * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 < * GNU Lesser General Public License for more details.
19 < *
20 < * You should have received a copy of the GNU Lesser General Public License
21 < * along with this program; if not, write to the Free Software
22 < * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
1 > /*
2 > * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3   *
4 + * The University of Notre Dame grants you ("Licensee") a
5 + * non-exclusive, royalty free, license to use, modify and
6 + * redistribute this software in source and binary code form, provided
7 + * that the following conditions are met:
8 + *
9 + * 1. Acknowledgement of the program authors must be made in any
10 + *    publication of scientific results based in part on use of the
11 + *    program.  An acceptable form of acknowledgement is citation of
12 + *    the article in which the program was described (Matthew
13 + *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14 + *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15 + *    Parallel Simulation Engine for Molecular Dynamics,"
16 + *    J. Comput. Chem. 26, pp. 252-271 (2005))
17 + *
18 + * 2. Redistributions of source code must retain the above copyright
19 + *    notice, this list of conditions and the following disclaimer.
20 + *
21 + * 3. Redistributions in binary form must reproduce the above copyright
22 + *    notice, this list of conditions and the following disclaimer in the
23 + *    documentation and/or other materials provided with the
24 + *    distribution.
25 + *
26 + * This software is provided "AS IS," without a warranty of any
27 + * kind. All express or implied conditions, representations and
28 + * warranties, including any implied warranty of merchantability,
29 + * fitness for a particular purpose or non-infringement, are hereby
30 + * excluded.  The University of Notre Dame and its licensors shall not
31 + * be liable for any damages suffered by licensee as a result of
32 + * using, modifying or distributing the software or its
33 + * derivatives. In no event will the University of Notre Dame or its
34 + * licensors be liable for any lost revenue, profit or data, or for
35 + * direct, indirect, special, consequential, incidental or punitive
36 + * damages, however caused and regardless of the theory of liability,
37 + * arising out of the use of or inability to use software, even if the
38 + * University of Notre Dame has been advised of the possibility of
39 + * such damages.
40   */
41 <
41 >
42   /**
43   * @file SquareMatrix3.hpp
44   * @author Teng Lin
# Line 61 | Line 77 | namespace oopse {
77              /** copy  constructor */
78              SquareMatrix3(const SquareMatrix<Real, 3>& m)  : SquareMatrix<Real, 3>(m) {
79              }
80 <
80 >            
81              SquareMatrix3( const Vector3<Real>& eulerAngles) {
82                  setupRotMat(eulerAngles);
83              }
# Line 87 | Line 103 | namespace oopse {
103                   return *this;
104              }
105  
106 +
107 +            SquareMatrix3<Real>& operator =(const Quaternion<Real>& q) {
108 +                this->setupRotMat(q);
109 +                return *this;
110 +            }
111 +
112              /**
113               * Sets this matrix to a rotation matrix by three euler angles
114               * @ param euler
# Line 209 | Line 231 | namespace oopse {
231              */            
232              Vector3<Real> toEulerAngles() {
233                  Vector3<Real> myEuler;
234 <                Real phi,theta,psi,eps;
235 <                Real ctheta,stheta;
234 >                Real phi;
235 >                Real theta;
236 >                Real psi;
237 >                Real ctheta;
238 >                Real stheta;
239                  
240                  // set the tolerance for Euler angles and rotation elements
241  
# Line 260 | Line 285 | namespace oopse {
285  
286                  return(x + y + z);
287              }            
288 +
289 +            /** Returns the trace of this matrix. */
290 +            Real trace() const {
291 +                return data_[0][0] + data_[1][1] + data_[2][2];
292 +            }
293              
294              /**
295               * Sets the value of this matrix to  the inversion of itself.
296               * @note since simple algorithm can be applied to inverse the 3 by 3 matrix, we hide the
297               * implementation of inverse in SquareMatrix class
298               */
299 <            SquareMatrix3<Real>  inverse() {
299 >            SquareMatrix3<Real>  inverse() const {
300                  SquareMatrix3<Real> m;
301                  double det = determinant();
302                  if (fabs(det) <= oopse::epsilon) {
# Line 435 | Line 465 | namespace oopse {
465          // transpose the eigenvectors back again
466          v = v.transpose();
467          return ;
468 +    }
469 +
470 +    /**
471 +    * Return the multiplication of two matrixes  (m1 * m2).
472 +    * @return the multiplication of two matrixes
473 +    * @param m1 the first matrix
474 +    * @param m2 the second matrix
475 +    */
476 +    template<typename Real>
477 +    inline SquareMatrix3<Real> operator *(const SquareMatrix3<Real>& m1, const SquareMatrix3<Real>& m2) {
478 +        SquareMatrix3<Real> result;
479 +
480 +            for (unsigned int i = 0; i < 3; i++)
481 +                for (unsigned int j = 0; j < 3; j++)
482 +                    for (unsigned int k = 0; k < 3; k++)
483 +                        result(i, j)  += m1(i, k) * m2(k, j);                
484 +
485 +        return result;
486      }
487 +
488 +    template<typename Real>
489 +    inline SquareMatrix3<Real> outProduct(const Vector3<Real>& v1, const Vector3<Real>& v2) {
490 +        SquareMatrix3<Real> result;
491 +
492 +            for (unsigned int i = 0; i < 3; i++) {
493 +                for (unsigned int j = 0; j < 3; j++) {
494 +                        result(i, j)  = v1[i] * v2[j];                
495 +                }
496 +            }
497 +            
498 +        return result;        
499 +    }
500 +
501 +    
502      typedef SquareMatrix3<double> Mat3x3d;
503      typedef SquareMatrix3<double> RotMat3x3d;
504  

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