1 /* Siconos is a program dedicated to modeling, simulation and control
2  * of non smooth dynamical systems.
3  *
4  * Copyright 2021 INRIA.
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17 */
18 
19 /*! \file SphereLDSSphereLDSR.hpp
20   \brief Two spheres relation - Inherits from LagrangianScleronomousR
21 */
22 
23 #ifndef SphereLDSSphereLDSR_h
24 #define SphereLDSSphereLDSR_h
25 
26 #include "MechanicsFwd.hpp"
27 #include "LagrangianScleronomousR.hpp"
28 
29 class SphereLDSSphereLDSR : public LagrangianScleronomousR, public std::enable_shared_from_this<SphereLDSSphereLDSR>
30 {
31 private:
32   /** serialization hooks
33   */
34   ACCEPT_SERIALIZATION(SphereLDSSphereLDSR);
35 
36   double r1, r2, r1pr2;
37 
SphereLDSSphereLDSR()38   SphereLDSSphereLDSR() {};
39 
40 public:
41 
42   /** Constructor
43 
44   \param r1 disk1 radius
45   \param r2 disk2 radius
46   */
47   SphereLDSSphereLDSR(double r1, double r2);
48 
49   double distance(double, double, double, double, double, double, double, double);
50 
51   using LagrangianScleronomousR::computeh;
52   /** to compute the output y = h(t,q,z) of the Relation
53       \param q coordinates of the dynamical systems involved in the relation
54       \param z user defined parameters (optional)
55       \param y the resulting vector
56   */
57   void computeh(const BlockVector& q, BlockVector& z, SiconosVector& y);
58 
59   /** to compute the jacobian of h(...). Set attribute _jachq (access: jacqhq())
60       \param q coordinates of the dynamical systems involved in the relation
61       \param z user defined parameters (optional)
62   */
63   void computeJachq(const BlockVector& q, BlockVector& z);
64 
65   /** visitors hook
66    */
67   ACCEPT_VISITORS();
68 
69 };
70 #endif /* SphereLDSSphereLDSR_h */
71