1 /* $Header: /var/cvs/mbdyn/mbdyn/mbdyn-1.0/mbdyn/base/dofdrive.h,v 1.21 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 DOFDRIVE_H
43 #define DOFDRIVE_H
44
45 #include <drive.h>
46 #include <node.h>
47
48 class DofDriveCaller : public DriveCaller, public DriveOwner
49 {
50 protected:
51 const ScalarDof SD;
52
53 public:
54 DofDriveCaller(const DriveHandler* pDH, const DriveCaller* pDC,
55 const ScalarDof& sd);
56 virtual ~DofDriveCaller(void);
57
58 /* Copia */
59 virtual DriveCaller* pCopy(void) const;
60
61 virtual std::ostream& Restart(std::ostream& out) const;
62
63 inline doublereal dGet(const doublereal& dVar) const;
64 inline doublereal dGet(void) const;
65 };
66
67 inline doublereal
dGet(const doublereal & dVar)68 DofDriveCaller::dGet(const doublereal& dVar) const
69 {
70 silent_cerr("warning, possible improper call of dof drive "
71 "with real argument" << std::endl);
72 return DriveOwner::pGetDriveCaller()->dGet(dVar);
73 }
74
75 inline doublereal
dGet(void)76 DofDriveCaller::dGet(void) const
77 {
78 return pGetDriveCaller()->dGet(SD.pNode->dGetDofValue(1, SD.iOrder));
79 }
80
81 #endif /* DOFDRIVE_H */
82
83