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flexibility_influence_function.h
1 /* Copyright (C) 2004-2009 MBSim Development Team
2  *
3  * This library is free software; you can redistribute it and/or
4  * modify it under the terms of the GNU Lesser General Public
5  * License as published by the Free Software Foundation; either
6  * version 2.1 of the License, or (at your option) any later version.
7  *
8  * This library is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11  * Lesser General Public License for more details.
12  *
13  * You should have received a copy of the GNU Lesser General Public
14  * License along with this library; if not, write to the Free Software
15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16  *
17  * Contact: markus.ms.schneider@gmail.com
18  */
19 
20 #ifndef _FLEXIBILITY_INFLUENCE_FUNCTION_H_
21 #define _FLEXIBILITY_INFLUENCE_FUNCTION_H_
22 
23 #include "mbsim/functions/kinetics/influence_function.h"
24 #include "mbsim/utils/eps.h"
25 
26 namespace MBSim {
27 
28  /*
29  * \brief Influence function for flexibility of contour with no influence to other contours (or contour points)
30  */
32  public:
33  FlexibilityInfluenceFunction() : flexibility(0) {
34  }
35  FlexibilityInfluenceFunction(const std::string& ContourName_, const double & flexibility_) :
36  flexibility(flexibility_) {
37  }
38  virtual ~FlexibilityInfluenceFunction() {}
39  /* INHERITED INTERFACE OF FUNCTION2 */
40  virtual double operator()(const std::pair<Contour*, ContourFrame*>& firstContourInfo, const std::pair<Contour*, ContourFrame*>& secondContourInfo) {
41  if(nrm2(evalZeta(firstContourInfo)- evalZeta(secondContourInfo)) < macheps())
42  return flexibility;
43  else
44  return 0;
45  }
46  virtual void initializeUsingXML(xercesc::DOMElement *element);
47  /***************************************************/
48 
49  protected:
50  double flexibility;
51  };
52 
53 }
54 
55 #endif
Definition: flexibility_influence_function.h:31
function describing the influence between the deformations on a body
Definition: influence_function.h:45

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