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jacpair_ellipse_circle.h
1 /* Copyright (C) 2004-2010 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: martin.o.foerg@googlemail.com
18  */
19 
20 #ifndef _JACPAIR_ELLIPSE_CIRCLE_H_
21 #define _JACPAIR_ELLIPSE_CIRCLE_H_
22 
23 #include <mbsim/functions/contact/jacpair_conesection_circle.h>
24 
25 namespace MBSim {
26 
33  public:
39  JacobianPairEllipseCircle(double a_, double b_) :
41  }
42 
43  /* INHERITED INTERFACE OF FUNCTION */
44  double operator()(const double &phi);
45  /*************************************************/
46  };
47 
48  inline double JacobianPairEllipseCircle::operator()(const double &phi) {
49  return 2. * (b * (b2(0) * d(0) + b2(1) * d(1) + b2(2) * d(2)) * sin(phi) + a * (b1(0) * d(0) + b1(1) * d(1) + b1(2) * d(2)) * cos(phi) + ((a * a) - (b * b)) * cos(2 * phi));
50  }
51 
52 }
53 
54 #endif
double a
length in b1- and b2-direction
Definition: jacpair_conesection_circle.h:52
JacobianPairEllipseCircle(double a_, double b_)
constructor
Definition: jacpair_ellipse_circle.h:39
fmatvec::Vec3 d
distance-vector of circle- and cone-section-midpoint
Definition: jacpair_conesection_circle.h:62
Jacobian of root function for planar pairing Ellipse and Circle.
Definition: jacpair_ellipse_circle.h:32
base Jacobian of root function for planar pairing ConeSection and Circle
Definition: jacpair_conesection_circle.h:32
fmatvec::Vec3 b1
normed base-vectors of cone-section
Definition: jacpair_conesection_circle.h:57

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