MBDyn-1.7.3
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ddrive.h
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1 /* $Header: /var/cvs/mbdyn/mbdyn/mbdyn-1.0/mbdyn/base/ddrive.h,v 1.15 2017/01/12 14:46:09 masarati Exp $ */
2 /*
3  * MBDyn (C) is a multibody analysis code.
4  * http://www.mbdyn.org
5  *
6  * Copyright (C) 1996-2017
7  *
8  * Pierangelo Masarati <masarati@aero.polimi.it>
9  * Paolo Mantegazza <mantegazza@aero.polimi.it>
10  *
11  * Dipartimento di Ingegneria Aerospaziale - Politecnico di Milano
12  * via La Masa, 34 - 20156 Milano, Italy
13  * http://www.aero.polimi.it
14  *
15  * Changing this copyright notice is forbidden.
16  *
17  * This program is free software; you can redistribute it and/or modify
18  * it under the terms of the GNU General Public License as published by
19  * the Free Software Foundation (version 2 of the License).
20  *
21  *
22  * This program is distributed in the hope that it will be useful,
23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25  * GNU General Public License for more details.
26  *
27  * You should have received a copy of the GNU General Public License
28  * along with this program; if not, write to the Free Software
29  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30  */
31 
32 /* Classe di drivers che usano gradi di liberta' nodali
33  *
34  * Il valore del drive viene fatto dipendere da un grado di liberta' nodale
35  * in modo del tutto generale e trasparente. Ovvero in ingresso dati si
36  * associa il drive al grado di liberta' j-esimo del nodo i-esimo, con
37  * verifiche di consistenza. In esecuzione, la funzione propria dGet() del
38  * drive restituisce il valore del grado di liberta' associato
39  * (o della derivata, se il grado di liberta' e' differenziale).
40  */
41 
42 #ifndef DDRIVE_H
43 #define DDRIVE_H
44 
45 #include "drive.h"
46 #include "node.h"
47 
49 {
50 private:
53 
54 public:
55  DriveDriveCaller(const DriveHandler* pDH,
56  const DriveCaller* pDC1,
57  const DriveCaller* pDC2);
58  virtual ~DriveDriveCaller(void);
59 
60  /* Copia */
61  virtual DriveCaller* pCopy(void) const;
62 
63  virtual std::ostream& Restart(std::ostream& out) const;
64 
65  inline doublereal dGet(const doublereal& dVar) const;
66  inline doublereal dGet(void) const;
67 
68  /* this is about drives that are differentiable */
69  virtual inline bool bIsDifferentiable(void) const;
70  virtual inline doublereal dGetP(const doublereal& dVar) const;
71  virtual inline doublereal dGetP(void) const;
72 };
73 
74 inline doublereal
76 {
77  return DO1.pGetDriveCaller()->dGet(DO2.pGetDriveCaller()->dGet(dVar));
78 }
79 
80 inline doublereal
82 {
84 }
85 
86 /* this is about drives that are differentiable */
87 inline bool
89 {
91 }
92 
93 inline doublereal
95 {
96  return DO1.dGetP(DO2.dGet(dVar)) * DO2.dGetP(dVar);
97 }
98 
99 inline doublereal
101 {
102  return DO1.dGetP(DO2.dGet()) * DO2.dGetP();
103 }
104 
105 #endif /* DDRIVE_H */
106 
DriveOwner DO1
Definition: ddrive.h:51
virtual std::ostream & Restart(std::ostream &out) const
Definition: ddrive.cc:68
virtual doublereal dGetP(void) const
Definition: ddrive.h:100
bool bIsDifferentiable(void) const
Definition: drive.cc:677
doublereal dGetP(const doublereal &dVar) const
Definition: drive.cc:683
virtual ~DriveDriveCaller(void)
Definition: ddrive.cc:45
DriveOwner DO2
Definition: ddrive.h:52
DriveCaller * pGetDriveCaller(void) const
Definition: drive.cc:658
virtual DriveCaller * pCopy(void) const
Definition: ddrive.cc:52
virtual doublereal dGet(const doublereal &dVar) const =0
doublereal dGet(const doublereal &dVar) const
Definition: drive.cc:664
DriveDriveCaller(const DriveHandler *pDH, const DriveCaller *pDC1, const DriveCaller *pDC2)
Definition: ddrive.cc:37
virtual bool bIsDifferentiable(void) const
Definition: ddrive.h:88
doublereal dGet(void) const
Definition: ddrive.h:81
double doublereal
Definition: colamd.c:52