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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 1999, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** ****************************************************************** */
00020                                                                         
00021 // $Revision: 1.2 $
00022 // $Date: 2001/05/03 06:14:16 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/analysis/dof_grp/TransformationDOF_Group.h,v $
00024                                                                         
00025                                                                         
00026 #ifndef TransformationDOF_Group_h
00027 #define TransformationDOF_Group_h
00028 
00029 // File: ~/analysis/dof_grp/TransformationDOF_Group.h
00030 // 
00031 // Written: fmk 
00032 // Created: 05/99
00033 // Revision: A
00034 //
00035 // Description: This file contains the class definition for 
00036 // TransformationDOF_Group. A TransformationDOF_Group object is 
00037 // instantiated by the TransformationConstraintHandler for 
00038 // every node in the domain which is constrained by an MP_Constraint
00039 // or an SP_Constrant.
00040 //
00041 // What: "@(#) TransformationDOF_Group.h, revA"
00042 
00043 #include <DOF_Group.h>
00044 
00045 #include <MP_Constraint.h>
00046 #include <SP_Constraint.h>
00047 
00058 class TransformationDOF_Group: public DOF_Group
00059 {
00060   public:
00062     TransformationDOF_Group(int tag, Node *myNode, MP_Constraint *mp);
00063 
00065     TransformationDOF_Group(int tag, Node *myNode);    
00067     ~TransformationDOF_Group();    
00068     
00070     int doneID(void);    
00072     const ID &getID(void) const; 
00074     virtual void setID(int dof, int value);    
00076     Matrix *getT(void);
00078     virtual int getNumDOF(void) const;    
00080     virtual int getNumFreeDOF(void) const;
00082     virtual int getNumConstrainedDOF(void) const;
00083     
00085     const Matrix &getTangent(Integrator *theIntegrator);
00086 
00088     const Vector &getUnbalance(Integrator *theIntegrator);
00090     virtual void  addM_Force(const Vector &Udotdot, double fact = 1.0);        
00091     
00093     const Vector & getCommittedDisp(void);
00095     const Vector & getCommittedVel(void);
00097     const Vector & getCommittedAccel(void);
00098     
00100     void setNodeDisp(const Vector &u);
00102     void setNodeVel(const Vector &udot);
00104     void setNodeAccel(const Vector &udotdot);
00105 
00107     void incrNodeDisp(const Vector &u);
00109     void incrNodeVel(const Vector &udot);
00111     void incrNodeAccel(const Vector &udotdot);
00112 
00114     virtual void setEigenvector(int mode, const Vector &eigenvalue);
00115 
00117     int addSP_Constraint(SP_Constraint &theSP);
00119     int enforceSPs(void);
00120     
00121   protected:
00122     
00123   private:
00125     MP_Constraint *theMP;
00127     Matrix *Trans;
00129     Matrix *modTangent;
00131     Vector *modUnbalance;
00133     ID *modID;
00135     int modNumDOF;
00136     
00138     SP_Constraint **theSPs;
00139     
00141     static Matrix **modMatrices; 
00142     static Vector **modVectors;  
00143     static int numTransDOFs;           // number of objects        
00144 };
00145 
00146 #endif
00147