PEER NEES NEESit

• HOME
• USER
• DEVELOPER
• PROJECTS
• SUPPORT
• SITE MAP

• Dev Doc
• API
• Source
• Download
• Builds
• Bug Reports
• Message Board

LagrangeDOF_Group.cpp Go to the documentation of this file. /* ****************************************************************** ** ** OpenSees - Open System for Earthquake Engineering Simulation ** ** Pacific Earthquake Engineering Research Center ** ** ** ** ** ** (C) Copyright 1999, The Regents of the University of California ** ** All Rights Reserved. ** ** ** ** Commercial use of this program without express permission of the ** ** University of California, Berkeley, is strictly prohibited. See ** ** file 'COPYRIGHT' in main directory for information on usage and ** ** redistribution, and for a DISCLAIMER OF ALL WARRANTIES. ** ** ** ** Developed by: ** ** Frank McKenna (fmckenna@ce.berkeley.edu) ** ** Gregory L. Fenves (fenves@ce.berkeley.edu) ** ** Filip C. Filippou (filippou@ce.berkeley.edu) ** ** ** ** ****************************************************************** */ // $Revision: 1.3 $ // $Date: 2004/10/12 21:52:25 $ // $Source: /usr/local/cvs/OpenSees/SRC/analysis/dof_grp/LagrangeDOF_Group.cpp,v $ // Written: fmk // Created: 02/99 // Revision: A // // Purpose: This file contains the code for implementing the methods // of the LagrangeDOF_Group class interface. // // What: "@(#) LagrangeDOF_Group.C, revA" #include <LagrangeDOF_Group.h> #include <stdlib.h> #include <Node.h> #include <Vector.h> #include <Matrix.h> #include <TransientIntegrator.h> #include <SP_Constraint.h> #include <MP_Constraint.h> LagrangeDOF_Group::LagrangeDOF_Group(int tag, SP_Constraint &spPtr) :DOF_Group(tag, 1) { } LagrangeDOF_Group::LagrangeDOF_Group(int tag, MP_Constraint &mpPtr) :DOF_Group(tag, (mpPtr.getRetainedDOFs()).Size()) { } // ~LagrangeDOF_Group(); // destructor. LagrangeDOF_Group::~LagrangeDOF_Group() { } const Matrix & LagrangeDOF_Group::getTangent(Integrator *theIntegrator) { // does nothing - the Lagrange FE_Elements provide coeffs to tangent if (tangent == 0) { int numDOF = this->getNumDOF(); tangent = new Matrix(numDOF,numDOF); if (tangent == 0) { opserr << "FATAL LagrangeDOF_Group::getTangent() "; opserr << " ranout of memory\n"; exit(-1); } } tangent->Zero(); return *tangent; } const Vector & LagrangeDOF_Group::getUnbalance(Integrator *theIntegrator) { // does nothing - the Lagrange FE_Elements provide residual unbalance->Zero(); return *unbalance; } // void setNodeDisp(const Vector &u); // Method to set the corresponding nodes displacements to the // values in u, components identified by myID; void LagrangeDOF_Group::setNodeDisp(const Vector &u) { return; } // void setNodeVel(const Vector &udot); // Method to set the corresponding nodes velocities to the // values in udot, components identified by myID; void LagrangeDOF_Group::setNodeVel(const Vector &udot) { return; } // void setNodeAccel(const Vector &udotdot); // Method to set the corresponding nodes accelerations to the // values in udotdot, components identified by myID; void LagrangeDOF_Group::setNodeAccel(const Vector &udotdot) { return; } // void setNodeIncrDisp(const Vector &u); // Method to set the corresponding nodes displacements to the // values in u, components identified by myID; void LagrangeDOF_Group::incrNodeDisp(const Vector &u) { return; } // void setNodeincrVel(const Vector &udot); // Method to set the corresponding nodes velocities to the // values in udot, components identified by myID; void LagrangeDOF_Group::incrNodeVel(const Vector &udot) { return; } // void setNodeIncrAccel(const Vector &udotdot); // Method to set the corresponding nodes accelerations to the // values in udotdot, components identified by myID; void LagrangeDOF_Group::incrNodeAccel(const Vector &udotdot) { return; } const Vector & LagrangeDOF_Group::getCommittedDisp(void) { unbalance->Zero(); return *unbalance; } const Vector & LagrangeDOF_Group::getCommittedVel(void) { unbalance->Zero(); return *unbalance; } const Vector & LagrangeDOF_Group::getCommittedAccel(void) { unbalance->Zero(); return *unbalance; } void LagrangeDOF_Group::addMtoTang(double fact) { } void LagrangeDOF_Group::zeroUnbalance(void) { } void LagrangeDOF_Group::zeroTangent(void) { } void LagrangeDOF_Group::addPtoUnbalance(double fact) { } void LagrangeDOF_Group::addPIncInertiaToUnbalance(double fact) { } void LagrangeDOF_Group::addM_Force(const Vector &Udotdot, double fact) { } const Vector & LagrangeDOF_Group::getTangForce(const Vector &disp, double fact) { opserr << "WARNING LagrangeDOF_Group::getTangForce() - not yet implemented\n"; unbalance->Zero(); return *unbalance; } const Vector & LagrangeDOF_Group::getC_Force(const Vector &disp, double fact) { unbalance->Zero(); return *unbalance; } const Vector & LagrangeDOF_Group::getM_Force(const Vector &disp, double fact) { unbalance->Zero(); return *unbalance; } Generated on Mon Oct 23 15:04:57 2006 for OpenSees by  1.5.0

---

opensees-support @ berkeley.edu

Supported by the National Science Foundation

©2006, UC Regents