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funcpair_ellipse_circle.h
1 /* Copyright (C) 2004-2010 MBSim Development Team
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3  * This library is free software; you can redistribute it and/or
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11  * Lesser General Public License for more details.
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13  * You should have received a copy of the GNU Lesser General Public
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18  */
19 
20 #ifndef _FUNCPAIR_ELLIPSE_CIRCLE_H_
21 #define _FUNCPAIR_ELLIPSE_CIRCLE_H_
22 
23 #include <mbsim/functions/contact/funcpair_conesection_circle.h>
24 
25 namespace MBSim {
26 
34  public:
42  FuncPairEllipseCircle(double R_, double a_, double b_) :
43  FuncPairConeSectionCircle(R_, a_, b_) {
44  }
45 
53  FuncPairEllipseCircle(double R_, double a_, double b_, bool el_IN_ci_) :
54  FuncPairConeSectionCircle(R_, a_, b_, el_IN_ci_) {
55  }
56 
57  /* INHERITED INTERFACE OF DISTANCEFUNCTION */
58  double operator()(const double &phi);
59  fmatvec::Vec3 evalWrD(const double &phi);
60  /*************************************************/
61 
62  /* GETTER / SETTER */
63  void setEllipseCOS(fmatvec::Vec3 b1e_, fmatvec::Vec3 b2e_);
64  /*************************************************/
65  };
66 
67  inline void FuncPairEllipseCircle::setEllipseCOS(fmatvec::Vec3 b1e_, fmatvec::Vec3 b2e_) {
68  setSectionCOS(b1e_, b2e_);
69  }
70  inline double FuncPairEllipseCircle::operator()(const double &phi) {
71  return -2 * b * (b2(0) * d(0) + b2(1) * d(1) + b2(2) * d(2)) * cos(phi) + 2 * a * (b1(0) * d(0) + b1(1) * d(1) + b1(2) * d(2)) * sin(phi) + ((a * a) - (b * b)) * sin(2 * phi);
72  }
73  inline fmatvec::Vec3 FuncPairEllipseCircle::evalWrD(const double &phi) {
74  return d + b1 * a * cos(phi) + b2 * b * sin(phi);
75  }
76 
77 }
78 
79 #endif
root function for planar pairing Ellipse and Circle
Definition: funcpair_ellipse_circle.h:33
FuncPairEllipseCircle(double R_, double a_, double b_, bool el_IN_ci_)
constructor
Definition: funcpair_ellipse_circle.h:53
FuncPairEllipseCircle(double R_, double a_, double b_)
constructor
Definition: funcpair_ellipse_circle.h:42
base root function for planar pairing ConeSection and Circle
Definition: funcpair_conesection_circle.h:32
fmatvec::Vec3 b1
normed base-vectors of cone-section
Definition: funcpair_conesection_circle.h:80
fmatvec::Vec3 d
distance-vector of cone-section- and circle-midpoint
Definition: funcpair_conesection_circle.h:85

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