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SP_Constraint.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: 1.1.1.1 $ // $Date: 2000/09/15 08:23:18 $ // $Source: /usr/local/cvs/OpenSees/SRC/domain/constraints/SP_Constraint.cpp,v $ // File: ~/domain/constraints/SP_Constraint.C // // Written: fmk // Created: 11/96 // Revision: A // // Purpose: This file contains the implementation of class SP_Constraint. #include <SP_Constraint.h> #include <classTags.h> #include <Vector.h> #include <Channel.h> #include <FEM_ObjectBroker.h> // constructor for FEM_ObjectBroker SP_Constraint::SP_Constraint(int clasTag) :DomainComponent(0,clasTag), nodeTag(0), dofNumber(0), valueR(0.0), valueC(0.0), isConstant(true), loadPatternTag(-1) { // does nothing else } // constructor for a subclass to use SP_Constraint::SP_Constraint(int tag, int node, int ndof, int clasTag) :DomainComponent(tag, clasTag), nodeTag(node), dofNumber(ndof), valueR(0.0), valueC(0.0), isConstant(true), loadPatternTag(-1) // valueC is set to 1.0 so that homo will be false when recvSelf() invoked // should be ok as valueC cannot be used by subclasses and subclasses should // not be used if it is a homogeneous constraint. { } // constructor for object of type SP_Constraint SP_Constraint::SP_Constraint(int tag, int node, int ndof, double value, bool ISconstant) :DomainComponent(tag, CNSTRNT_TAG_SP_Constraint), nodeTag(node), dofNumber(ndof), valueR(value), valueC(value), isConstant(ISconstant), loadPatternTag(-1) { } SP_Constraint::~SP_Constraint() { // does nothing } int SP_Constraint::getNodeTag(void) const { // return id of constrained node return nodeTag; } int SP_Constraint::getDOF_Number(void) const { // return the number of the constrained DOF return dofNumber; } double SP_Constraint::getValue(void) { // return the value of the constraint return valueC; } int SP_Constraint::applyConstraint(double loadFactor) { // as SP_Constraint objects are time invariant nothing is done if (isConstant == false) valueC = loadFactor*valueR; return 0; } bool SP_Constraint::isHomogeneous(void) const { if (valueR == 0.0) return true; else return false; } void SP_Constraint::setLoadPatternTag(int tag) { loadPatternTag = tag; } int SP_Constraint::getLoadPatternTag(void) const { return loadPatternTag; } int SP_Constraint::sendSelf(int cTag, Channel &theChannel) { Vector data(7); // we send as double to avoid having // to send two messages. data(0) = this->getTag(); data(1) = nodeTag; data(2) = dofNumber; data(3) = valueC; if (isConstant == true) data(4) = 1.0; else data(4) = 0.0; data(5) = valueR; data(6) = this->getLoadPatternTag(); int result = theChannel.sendVector(this->getDbTag(), cTag, data); if (result < 0) cerr << "WARNING SP_Constraint::sendSelf - error sending Vector data\n"; return result; } int SP_Constraint::recvSelf(int cTag, Channel &theChannel, FEM_ObjectBroker &theBroker) { Vector data(7); // we sent the data as double to avoid having to send // two messages int result = theChannel.recvVector(this->getDbTag(), cTag, data); if (result < 0) { cerr << "WARNING SP_Constraint::recvSelf - error receiving Vector data\n"; return result; } // if o.k. set the data this->setTag(data(0)); nodeTag = data(1); dofNumber = data(2); valueC = data(3); if (data(4) == 1.0) isConstant = true; else isConstant = false; valueR = data(5); valueC = valueR; this->setLoadPatternTag(data(6)); return 0; } void SP_Constraint::Print(ostream &s, int flag) { s << "SP_Constraint: " << this->getTag(); s << "\t Node: " << nodeTag << " DOF: " << dofNumber; s << " value: " << valueC << endl; }

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